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46 results on '"Rörup, Birte"'

1. The gas-phase formation mechanism of iodic acid as an atmospheric aerosol source

Author

Finkenzeller, Henning, Iyer, Siddharth, He, Xu-Cheng, Simon, Mario, Koenig, Theodore K., Lee, Christopher F., Valiev, Rashid, Hofbauer, Victoria, Amorim, Antonio, Baalbaki, Rima, Baccarini, Andrea, Beck, Lisa, Bell, David M., Caudillo, Lucía, Chen, Dexian, Chiu, Randall, Chu, Biwu, Dada, Lubna, Duplissy, Jonathan, Heinritzi, Martin, Kemppainen, Deniz, Kim, Changhyuk, Krechmer, Jordan, Kürten, Andreas, Kvashnin, Alexandr, Lamkaddam, Houssni, Lee, Chuan Ping, Lehtipalo, Katrianne, Li, Zijun, Makhmutov, Vladimir, Manninen, Hanna E., Marie, Guillaume, Marten, Ruby, Mauldin, Roy L., Mentler, Bernhard, Müller, Tatjana, Petäjä, Tuukka, Philippov, Maxim, Ranjithkumar, Ananth, Rörup, Birte, Shen, Jiali, Stolzenburg, Dominik, Tauber, Christian, Tham, Yee Jun, Tomé, António, Vazquez-Pufleau, Miguel, Wagner, Andrea C., Wang, Dongyu S., Wang, Mingyi, Wang, Yonghong, Weber, Stefan K., Nie, Wei, Wu, Yusheng, Xiao, Mao, Ye, Qing, Zauner-Wieczorek, Marcel, Hansel, Armin, Baltensperger, Urs, Brioude, Jérome, Curtius, Joachim, Donahue, Neil M., Haddad, Imad El, Flagan, Richard C., Kulmala, Markku, Kirkby, Jasper, Sipilä, Mikko, Worsnop, Douglas R., Kurten, Theo, Rissanen, Matti, and Volkamer, Rainer

Published
2023
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2. Synergistic HNO3–H2SO4–NH3 upper tropospheric particle formation

Author

Wang, Mingyi, Xiao, Mao, Bertozzi, Barbara, Marie, Guillaume, Rörup, Birte, Schulze, Benjamin, Bardakov, Roman, He, Xu-Cheng, Shen, Jiali, Scholz, Wiebke, Marten, Ruby, Dada, Lubna, Baalbaki, Rima, Lopez, Brandon, Lamkaddam, Houssni, Manninen, Hanna E., Amorim, António, Ataei, Farnoush, Bogert, Pia, Brasseur, Zoé, Caudillo, Lucía, De Menezes, Louis-Philippe, Duplissy, Jonathan, Ekman, Annica M. L., Finkenzeller, Henning, Carracedo, Loïc Gonzalez, Granzin, Manuel, Guida, Roberto, Heinritzi, Martin, Hofbauer, Victoria, Höhler, Kristina, Korhonen, Kimmo, Krechmer, Jordan E., Kürten, Andreas, Lehtipalo, Katrianne, Mahfouz, Naser G. A., Makhmutov, Vladimir, Massabò, Dario, Mathot, Serge, Mauldin, Roy L., Mentler, Bernhard, Müller, Tatjana, Onnela, Antti, Petäjä, Tuukka, Philippov, Maxim, Piedehierro, Ana A., Pozzer, Andrea, Ranjithkumar, Ananth, Schervish, Meredith, Schobesberger, Siegfried, Simon, Mario, Stozhkov, Yuri, Tomé, António, Umo, Nsikanabasi Silas, Vogel, Franziska, Wagner, Robert, Wang, Dongyu S., Weber, Stefan K., Welti, André, Wu, Yusheng, Zauner-Wieczorek, Marcel, Sipilä, Mikko, Winkler, Paul M., Hansel, Armin, Baltensperger, Urs, Kulmala, Markku, Flagan, Richard C., Curtius, Joachim, Riipinen, Ilona, Gordon, Hamish, Lelieveld, Jos, El-Haddad, Imad, Volkamer, Rainer, Worsnop, Douglas R., Christoudias, Theodoros, Kirkby, Jasper, Möhler, Ottmar, and Donahue, Neil M.

Published
2022
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3. Design and performance of the Cluster Ion Counter (CIC).

Author

Mirme, Sander, Balbaaki, Rima, Manninen, Hanna Elina, Koemets, Paap, Sommer, Eva, Rörup, Birte, Wu, Yusheng, Almeida, Joao, Ehrhart, Sebastian, Weber, Stefan Karl, Pfeifer, Joschka, Kangasluoma, Juha, Kulmala, Markku, and Kirkby, Jasper

Subjects
GALACTIC cosmic rays, COMPLEX ions, COUNTER-ions, AIR flow, PARTICLE beams, ATMOSPHERIC nucleation
Abstract

A dilute plasma is continuously maintained in the troposphere by ionising particle radiation from galactic cosmic rays and radon decay. Small ions in the 1–2 nm size range play an important role in atmospheric processes such as ion-induced nucleation of aerosol particles. Consequently there is a need for precise and robust instruments to measure small ions both for atmospheric observations and for laboratory experiments that simulate the atmosphere. Here we describe the design and performance of the Cluster Ion Counter (CIC, Airel OÜ), which simultaneously measures the number concentrations of positively- and negatively-charged ions and particles below 5 nm mobility diameter, with low noise and fast time response. The detection efficiency is above 80 % for ions and charged particles between 1.2 and 2.0 nm, and above 90 % between 2.0 and 3.0 nm. The ion concentrations measured by the CIC agree well with reference instruments. The noise level (1 σ of background measurements) is typically between 20 and 30 ions cm-3 at 1 Hz sampling rate and an air flow rate of 7 l min-1 per analyzer. The noise level improves when higher flow rates and longer sampling periods are used. The CIC responds rapidly with 1 s time resolution to pulses of ionisation produced in the CLOUD chamber by a CERN particle beam. [ABSTRACT FROM AUTHOR]

Published
2024
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4. Ammonium CI-Orbitrap: a tool for characterizing the reactivity of oxygenated organic molecules.

Author

Li, Dandan, Wang, Dongyu, Caudillo, Lucia, Scholz, Wiebke, Wang, Mingyi, Tomaz, Sophie, Marie, Guillaume, Surdu, Mihnea, Eccli, Elias, Gong, Xianda, Gonzalez-Carracedo, Loic, Granzin, Manuel, Pfeifer, Joschka, Rörup, Birte, Schulze, Benjamin, Rantala, Pekka, Perrier, Sébastien, Hansel, Armin, Curtius, Joachim, and Kirkby, Jasper

Subjects
MASS spectrometry, TIME-of-flight mass spectrometers, MASS spectrometers, ATMOSPHERIC ionization, ATMOSPHERIC aerosols, CHEMICAL ionization mass spectrometry
Abstract

Oxygenated organic molecules (OOMs) play an important role in the formation of atmospheric aerosols. Due to various analytical challenges with respect to measuring organic vapors, uncertainties remain regarding the formation and fate of OOMs. The chemical ionization Orbitrap (CI-Orbitrap) mass spectrometer has recently been shown to be a powerful technique that is able to accurately identify gaseous organic compounds due to its greater mass resolution. Here, we present the ammonium-ion-based CI-Orbitrap (NH4+ -Orbitrap) as a technique capable of measuring a wide range of gaseous OOMs. The performance of the NH4+ -Orbitrap is compared with that of state-of-the-art mass spectrometers, including a nitrate-ion-based chemical ionization atmospheric pressure interface coupled to a time-of-flight mass spectrometer (NO3- -LTOF), a new generation of proton transfer reaction-TOF mass spectrometer (PTR3-TOF), and an iodide-based CI-TOF mass spectrometer equipped with a Filter Inlet for Gases and AEROsols (I- -CIMS). The instruments were deployed simultaneously in the Cosmic Leaving OUtdoors Droplets (CLOUD) chamber at the European Organization for Nuclear Research (CERN) during the CLOUD14 campaign in 2019. Products generated from α -pinene ozonolysis under various experimental conditions were simultaneously measured by the mass spectrometers. The NH4+ -Orbitrap was able to identify the widest range of OOMs (i.e., O ≥ 2), from less-oxidized species to highly oxygenated organic molecules (HOMs). Excellent agreement was found between the NH4+ -Orbitrap and the NO3- -LTOF with respect to characterizing HOMs and with the PTR3-TOF for the less-oxidized monomeric species. OOM concentrations measured by NH4+ -Orbitrap were estimated using calibration factors derived from the OOMs with high time-series correlations during the side-by-side measurements. As with the other mass spectrometry techniques used during this campaign, the detection sensitivity of the NH4+ -Orbitrap to OOMs is greatly affected by relative humidity, which may be related to changes in ionization efficiency and/or multiphase chemistry. Overall, this study shows that NH4+ -ion-based chemistry associated with the high mass resolution of the Orbitrap mass analyzer can measure almost all inclusive compounds. As a result, it is now possible to cover the entire range of compounds, which can lead to a better understanding of the oxidation processes. [ABSTRACT FROM AUTHOR]

Published
2024
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5. Nitrate Radicals Suppress Biogenic New Particle Formation from Monoterpene Oxidation

Author

Li, Dandan, primary, Huang, Wei, additional, Wang, Dongyu, additional, Wang, Mingyi, additional, Thornton, Joel A., additional, Caudillo, Lucía, additional, Rörup, Birte, additional, Marten, Ruby, additional, Scholz, Wiebke, additional, Finkenzeller, Henning, additional, Marie, Guillaume, additional, Baltensperger, Urs, additional, Bell, David M., additional, Brasseur, Zoé, additional, Curtius, Joachim, additional, Dada, Lubna, additional, Duplissy, Jonathan, additional, Gong, Xianda, additional, Hansel, Armin, additional, He, Xu-Cheng, additional, Hofbauer, Victoria, additional, Junninen, Heikki, additional, Krechmer, Jordan E., additional, Kürten, Andreas, additional, Lamkaddam, Houssni, additional, Lehtipalo, Katrianne, additional, Lopez, Brandon, additional, Ma, Yingge, additional, Mahfouz, Naser G. A., additional, Manninen, Hanna E., additional, Mentler, Bernhard, additional, Perrier, Sebastien, additional, Petäjä, Tuukka, additional, Pfeifer, Joschka, additional, Philippov, Maxim, additional, Schervish, Meredith, additional, Schobesberger, Siegfried, additional, Shen, Jiali, additional, Surdu, Mihnea, additional, Tomaz, Sophie, additional, Volkamer, Rainer, additional, Wang, Xinke, additional, Weber, Stefan K., additional, Welti, André, additional, Worsnop, Douglas R., additional, Wu, Yusheng, additional, Yan, Chao, additional, Zauner-Wieczorek, Marcel, additional, Kulmala, Markku, additional, Kirkby, Jasper, additional, Donahue, Neil M., additional, George, Christian, additional, El-Haddad, Imad, additional, Bianchi, Federico, additional, and Riva, Matthieu, additional

Published
2024
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6. Assessing the importance of nitric acid and ammonia for particle growth in the polluted boundary layer

Author

Marten, Ruby, primary, Xiao, Mao, additional, Wang, Mingyi, additional, Kong, Weimeng, additional, He, Xu-Cheng, additional, Stolzenburg, Dominik, additional, Pfeifer, Joschka, additional, Marie, Guillaume, additional, Wang, Dongyu S., additional, Elser, Miriam, additional, Baccarini, Andrea, additional, Lee, Chuan Ping, additional, Amorim, Antonio, additional, Baalbaki, Rima, additional, Bell, David M., additional, Bertozzi, Barbara, additional, Caudillo, Lucía, additional, Dada, Lubna, additional, Duplissy, Jonathan, additional, Finkenzeller, Henning, additional, Heinritzi, Martin, additional, Lampimäki, Markus, additional, Lehtipalo, Katrianne, additional, Manninen, Hanna E., additional, Mentler, Bernhard, additional, Onnela, Antti, additional, Petäjä, Tuukka, additional, Philippov, Maxim, additional, Rörup, Birte, additional, Scholz, Wiebke, additional, Shen, Jiali, additional, Tham, Yee Jun, additional, Tomé, António, additional, Wagner, Andrea C., additional, Weber, Stefan K., additional, Zauner-Wieczorek, Marcel, additional, Curtius, Joachim, additional, Kulmala, Markku, additional, Volkamer, Rainer, additional, Worsnop, Douglas R., additional, Dommen, Josef, additional, Flagan, Richard C., additional, Kirkby, Jasper, additional, McPherson Donahue, Neil, additional, Lamkaddam, Houssni, additional, Baltensperger, Urs, additional, and El Haddad, Imad, additional

Published
2024
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7. Rapid growth of new atmospheric particles by nitric acid and ammonia condensation

Author

Wang, Mingyi, Kong, Weimeng, Marten, Ruby, He, Xu-Cheng, Chen, Dexian, Pfeifer, Joschka, Heitto, Arto, Kontkanen, Jenni, Dada, Lubna, Kürten, Andreas, Yli-Juuti, Taina, Manninen, Hanna E., Amanatidis, Stavros, Amorim, António, Baalbaki, Rima, Baccarini, Andrea, Bell, David M., Bertozzi, Barbara, Bräkling, Steffen, Brilke, Sophia, Murillo, Lucía Caudillo, Chiu, Randall, Chu, Biwu, De Menezes, Louis-Philippe, Duplissy, Jonathan, Finkenzeller, Henning, Carracedo, Loic Gonzalez, Granzin, Manuel, Guida, Roberto, Hansel, Armin, Hofbauer, Victoria, Krechmer, Jordan, Lehtipalo, Katrianne, Lamkaddam, Houssni, Lampimäki, Markus, Lee, Chuan Ping, Makhmutov, Vladimir, Marie, Guillaume, Mathot, Serge, Mauldin, Roy L., Mentler, Bernhard, Müller, Tatjana, Onnela, Antti, Partoll, Eva, Petäjä, Tuukka, Philippov, Maxim, Pospisilova, Veronika, Ranjithkumar, Ananth, Rissanen, Matti, Rörup, Birte, Scholz, Wiebke, Shen, Jiali, Simon, Mario, Sipilä, Mikko, Steiner, Gerhard, Stolzenburg, Dominik, Tham, Yee Jun, Tomé, António, Wagner, Andrea C., Wang, Dongyu S., Wang, Yonghong, Weber, Stefan K., Winkler, Paul M., Wlasits, Peter J., Wu, Yusheng, Xiao, Mao, Ye, Qing, Zauner-Wieczorek, Marcel, Zhou, Xueqin, Volkamer, Rainer, Riipinen, Ilona, Dommen, Josef, Curtius, Joachim, Baltensperger, Urs, Kulmala, Markku, Worsnop, Douglas R., Kirkby, Jasper, Seinfeld, John H., El-Haddad, Imad, Flagan, Richard C., and Donahue, Neil M.

Published
2020
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8. Ammonium CI-Orbitrap: a tool for characterizing the reactivity of oxygenated organic molecules

Author

Li, Dandan, primary, Wang, Dongyu, additional, Caudillo, Lucia, additional, Scholz, Wiebke, additional, Wang, Mingyi, additional, Tomaz, Sophie, additional, Marie, Guillaume, additional, Surdu, Mihnea, additional, Eccli, Elias, additional, Gong, Xianda, additional, Gonzalez-Carracedo, Loic, additional, Granzin, Manuel, additional, Pfeifer, Joschka, additional, Rörup, Birte, additional, Schulze, Benjamin, additional, Rantala, Pekka, additional, Perrier, Sébastien, additional, Hansel, Armin, additional, Curtius, Joachim, additional, Kirkby, Jasper, additional, Donahue, Neil M., additional, George, Christian, additional, El-Haddad, Imad, additional, and Riva, Matthieu, additional

Published
2023
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9. Supplementary material to "Ammonium CI-Orbitrap: a tool for characterizing the reactivity of oxygenated organic molecules"

Author

Li, Dandan, primary, Wang, Dongyu, additional, Caudillo, Lucia, additional, Scholz, Wiebke, additional, Wang, Mingyi, additional, Tomaz, Sophie, additional, Marie, Guillaume, additional, Surdu, Mihnea, additional, Eccli, Elias, additional, Gong, Xianda, additional, Gonzalez-Carracedo, Loic, additional, Granzin, Manuel, additional, Pfeifer, Joschka, additional, Rörup, Birte, additional, Schulze, Benjamin, additional, Rantala, Pekka, additional, Perrier, Sébastien, additional, Hansel, Armin, additional, Curtius, Joachim, additional, Kirkby, Jasper, additional, Donahue, Neil M., additional, George, Christian, additional, El-Haddad, Imad, additional, and Riva, Matthieu, additional

Published
2023
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10. An intercomparison study of four different techniques for measuring the chemical composition of nanoparticles

Author

Caudillo, Lucía, primary, Surdu, Mihnea, additional, Lopez, Brandon, additional, Wang, Mingyi, additional, Thoma, Markus, additional, Bräkling, Steffen, additional, Buchholz, Angela, additional, Simon, Mario, additional, Wagner, Andrea C., additional, Müller, Tatjana, additional, Granzin, Manuel, additional, Heinritzi, Martin, additional, Amorim, Antonio, additional, Bell, David M., additional, Brasseur, Zoé, additional, Dada, Lubna, additional, Duplissy, Jonathan, additional, Finkenzeller, Henning, additional, He, Xu-Cheng, additional, Lamkaddam, Houssni, additional, Mahfouz, Naser G. A., additional, Makhmutov, Vladimir, additional, Manninen, Hanna E., additional, Marie, Guillaume, additional, Marten, Ruby, additional, Mauldin, Roy L., additional, Mentler, Bernhard, additional, Onnela, Antti, additional, Petäjä, Tuukka, additional, Pfeifer, Joschka, additional, Philippov, Maxim, additional, Piedehierro, Ana A., additional, Rörup, Birte, additional, Scholz, Wiebke, additional, Shen, Jiali, additional, Stolzenburg, Dominik, additional, Tauber, Christian, additional, Tian, Ping, additional, Tomé, António, additional, Umo, Nsikanabasi Silas, additional, Wang, Dongyu S., additional, Wang, Yonghong, additional, Weber, Stefan K., additional, Welti, André, additional, Zauner-Wieczorek, Marcel, additional, Baltensperger, Urs, additional, Flagan, Richard C., additional, Hansel, Armin, additional, Kirkby, Jasper, additional, Kulmala, Markku, additional, Lehtipalo, Katrianne, additional, Worsnop, Douglas R., additional, Haddad, Imad El, additional, Donahue, Neil M., additional, Vogel, Alexander L., additional, Kürten, Andreas, additional, and Curtius, Joachim, additional

Published
2023
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12. Measurement of the collision rate coefficients between atmospheric ions and multiply charged aerosol particles in the CERN CLOUD chamber

Author

Pfeifer, Joschka, Mahfouz, Naser G. A., Schulze, Benjamin C., Mathot, Serge, Stolzenburg, Dominik, Baalbaki, Rima, Brasseur, Zoé, Caudillo, Lucia, Dada, Lubna, Granzin, Manuel, He, Xu-Cheng, Lamkaddam, Houssni, Lopez, Brandon, Makhmutov, Vladimir, Marten, Ruby, Mentler, Bernhard, Müller, Tatjana, Onnela, Antti, Philippov, Maxim, Piedehierro, Ana A., Rörup, Birte, Schervish, Meredith, Tian, Ping, Umo, Nsikanabasi S., Wang, Dongyu S., Wang, Mingyi, Weber, Stefan K., Welti, André, Wu, Yusheng, Zauner-Wieczorek, Marcel, Amorim, Antonio, Haddad, Imad, Kulmala, Markku, Lehtipalo, Katrianne, Petäjä, Tuukka, Tomé, António, Mirme, Sander, Manninen, Hanna E., Donahue, Neil M., Flagan, Richard C., Kürten, Andreas, Curtius, Joachim, and Kirkby, Jasper

Abstract

Aerosol particles have an important role in Earth's radiation balance and climate, both directly and indirectly through aerosol–cloud interactions. Most aerosol particles in the atmosphere are weakly charged, affecting both their collision rates with ions and neutral molecules, as well as the rates by which they are scavenged by other aerosol particles and cloud droplets. The rate coefficients between ions and aerosol particles are important since they determine the growth rates and lifetimes of ions and charged aerosol particles, and so they may influence cloud microphysics, dynamics, and aerosol processing. However, despite their importance, very few experimental measurements exist of charged aerosol collision rates under atmospheric conditions, where galactic cosmic rays in the lower troposphere give rise to ion pair concentrations of around 1000 cm−3. Here we present measurements in the CERN CLOUD chamber of the rate coefficients between ions and small ( nm) aerosol particles containing up to 9 elementary charges, e. We find the rate coefficient of a singly charged ion with an oppositely charged particle increases from 2.0 (0.4–4.4) × 10−6 cm3 s−1 to 30.6 (24.9–45.1) × 10−6 cm3 s−1 for particles with charges of 1 to 9 e, respectively, where the parentheses indicate the ±1σ uncertainty interval. Our measurements are compatible with theoretical predictions and show excellent agreement with the model of Gatti and Kortshagen (2008).

Published
2023

13. Nitrate radicals suppress biogenic new particle formation from monoterpene oxidation

Author

Li, Dandan, primary, Huang, Wei, additional, Wang, Dongyu, additional, Wang, Mingyi, additional, Thornton, Joel, additional, Caudillo, Lucía, additional, Rörup, Birte, additional, Marten, Ruby, additional, Scholz, Wiebke, additional, Finkenzeller, Henning, additional, Marie, Guillaume, additional, Bell, David, additional, Brasseur, Zoé, additional, Curtius, Joachim, additional, Dada, Lubna, additional, Duplissy, Jonathan, additional, Gong, Xianda, additional, Hansel, Armin, additional, He, Xu-cheng, additional, Hofbauer, Victoria, additional, Junninen, Heikki, additional, Krechmer, Jordan E., additional, Kurten, Andreas, additional, Lamkaddam, Houssni, additional, LEHTIPALO, Katrianne, additional, Lopez, Brandon, additional, Ma, Yingge, additional, Mahfouz, Naser, additional, Manninen, Hanna E., additional, Mentler, Bernhard, additional, Perrier, Sebastien, additional, Petäjä, Tuukka, additional, Pfeifer, Joschka, additional, Philippov, Maxim, additional, Schervish, Meredith, additional, Schobesberger, Siegfried, additional, Shen, Jiali, additional, Surdu, Mihnea, additional, Tomaz, Sophie, additional, Volkamer, Rainer, additional, Wang, Xinke, additional, Weber, Stefan, additional, Welti, André, additional, Worsnop, Douglas, additional, wu, yusheng, additional, Yan, Chao, additional, Zauner-Wieczorek, Marcel, additional, Kulmala, Markku, additional, Kirkby, Jasper, additional, Donahue, Neil, additional, George, Christian, additional, El-Haddad, Imad, additional, Bianchi, Federico, additional, and Riva, Matthieu, additional

Published
2023
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14. Iodine oxoacids enhance nucleation of sulfuric acid particles in the atmosphere

Author

He, Xu-Cheng, Simon, Mario, Iyer, Siddharth, Xie, Hong-Bin, Rörup, Birte, Shen, Jiali, Finkenzeller, Henning, Stolzenburg, Dominik, Zhang, Rongjie, Baccarini, Andrea, Tham, Yee Jun, Wang, Mingyi, Amanatidis, Stavros, Piedehierro, Ana A., Amorim, Antonio, Baalbaki, Rima, Brasseur, Zoé, Caudillo, Lucía, Chu, Biwu, Dada, Lubna, Duplissy, Jonathan, El Haddad, Imad, Flagan, Richard C., Granzin, Manuel, Hansel, Armin, Heinritzi, Martin, Hofbauer, Victoria, Jokinen, Tuija, Kemppainen, Deniz, Kong, Weimeng, Krechmer, Jordan, Kürten, Andreas, Lamkaddam, Houssni, Lopez, Brandon, Ma, Fangfang, Mahfouz, Naser G. A., Makhmutov, Vladimir, Manninen, Hanna E., Marie, Guillaume, Marten, Ruby, Massabò, Dario, Mauldin, Roy L., Mentler, Bernhard, Onnela, Antti, Petäjä, Tuukka, Pfeifer, Joschka, Philippov, Maxim, Ranjithkumar, Ananth, Rissanen, Matti P., Schobesberger, Siegfried, Scholz, Wiebke, Schulze, Benjamin, Surdu, Mihnea, Thakur, Roseline C., Tomé, António, Wagner, Andrea C., Wang, Dongyu, Wang, Yonghong, Weber, Stefan K., Welti, André, Winkler, Paul M., Zauner-Wieczorek, Marcel, Baltensperger, Urs, Curtius, Joachim, Kurtén, Theo, Worsnop, Douglas R., Volkamer, Rainer, Lehtipalo, Katrianne, Kirkby, Jasper, Donahue, Neil M., Sipilä, Mikko, Kulmala, Markku, He, Xu-Cheng, Simon, Mario, Iyer, Siddharth, Xie, Hong-Bin, Rörup, Birte, Shen, Jiali, Finkenzeller, Henning, Stolzenburg, Dominik, Zhang, Rongjie, Baccarini, Andrea, Tham, Yee Jun, Wang, Mingyi, Amanatidis, Stavros, Piedehierro, Ana A., Amorim, Antonio, Baalbaki, Rima, Brasseur, Zoé, Caudillo, Lucía, Chu, Biwu, Dada, Lubna, Duplissy, Jonathan, El Haddad, Imad, Flagan, Richard C., Granzin, Manuel, Hansel, Armin, Heinritzi, Martin, Hofbauer, Victoria, Jokinen, Tuija, Kemppainen, Deniz, Kong, Weimeng, Krechmer, Jordan, Kürten, Andreas, Lamkaddam, Houssni, Lopez, Brandon, Ma, Fangfang, Mahfouz, Naser G. A., Makhmutov, Vladimir, Manninen, Hanna E., Marie, Guillaume, Marten, Ruby, Massabò, Dario, Mauldin, Roy L., Mentler, Bernhard, Onnela, Antti, Petäjä, Tuukka, Pfeifer, Joschka, Philippov, Maxim, Ranjithkumar, Ananth, Rissanen, Matti P., Schobesberger, Siegfried, Scholz, Wiebke, Schulze, Benjamin, Surdu, Mihnea, Thakur, Roseline C., Tomé, António, Wagner, Andrea C., Wang, Dongyu, Wang, Yonghong, Weber, Stefan K., Welti, André, Winkler, Paul M., Zauner-Wieczorek, Marcel, Baltensperger, Urs, Curtius, Joachim, Kurtén, Theo, Worsnop, Douglas R., Volkamer, Rainer, Lehtipalo, Katrianne, Kirkby, Jasper, Donahue, Neil M., Sipilä, Mikko, and Kulmala, Markku

Abstract

The main nucleating vapor in the atmosphere is thought to be sulfuric acid (H2SO4), stabilized by ammonia (NH3). However, in marine and polar regions, NH3 is generally low, and H2SO4 is frequently found together with iodine oxoacids [HIOx, i.e., iodic acid (HIO3) and iodous acid (HIO2)]. In experiments performed with the CERN CLOUD (Cosmics Leaving OUtdoor Droplets) chamber, we investigated the interplay of H2SO4 and HIOx during atmospheric particle nucleation. We found that HIOx greatly enhances H2SO4(-NH3) nucleation through two different interactions. First, HIO3 strongly binds with H2SO4 in charged clusters so they drive particle nucleation synergistically. Second, HIO2 substitutes for NH3, forming strongly bound H2SO4-HIO2 acid-base pairs in molecular clusters. Global observations imply that HIOx is enhancing H2SO4(-NH3) nucleation rates 10- to 10,000-fold in marine and polar regions.

Published
2023

15. Temperature, humidity, and ionisation effect of iodine oxoacid nucleation

Author

Rörup, Birte, He, Xu-Cheng, Shen, Jiali, Baalbaki, Rima, Dada, Lubna, Sipilä, Mikko, Kirkby, Jasper, Kulmala, Markku, Amorim, Antonio, Baccarini, Andrea, Bell, David M., Caudillo-Plath, Lucía, Duplissy, Jonathan, Finkenzeller, Henning, Kürten, Andreas, Lamkaddam, Houssni, Lee, Chuan Ping, Makhmutov, Vladimir, Manninen, Hanna E., Marie, Guillaume, Marten, Ruby, Mentler, Bernhard, Onnela, Antti, Philippov, Maxim, Scholz, Carolin Wiebke, Simon, Mario, Stolzenburg, Dominik, Tham, Yee Jun, Tomé, António, Wagner, Andrea C., Wang, Mingyi, Wang, Dongyu, Wang, Yonghong, Weber, Stefan K., Zauner-Wieczorek, Marcel, Baltensperger, Urs, Curtius, Joachim, Donahue, Neil M., El Haddad, Imad, Flagan, Richard C., Hansel, Armin, Möhler, Ottmar, Petäjä, Tuukka, Volkamer, Rainer, Worsnop, Douglas, and Lehtipalo, Katrianne

Abstract

Iodine oxoacids are recognised for their significant contribution to the formation of new particles in marine and polar atmospheres. Nevertheless, to incorporate the iodine oxoacid nucleation mechanism into global simulations, it is essential to comprehend how this mechanism varies under various atmospheric conditions. In this study, we combined measurements from the CLOUD (Cosmic Leaving OUtdoor Droplets) chamber at CERN and simulations with a kinetic model to investigate the impact of temperature, ionisation, and humidity on iodine oxoacid nucleation. Our findings reveal that ion-induced particle formation rates remain largely unaffected by changes in temperature. However, neutral particle formation rates experience a significant increase when the temperature drops from +10 °C to −10 °C. Running the kinetic model with varying ionisation rates demonstrates that the particle formation rate only increases with a higher ionisation rate when the iodic acid concentration exceeds 1.5 × 107cm−3, a concentration rarely reached in pristine marine atmospheres. Consequently, our simulations suggest that, despite higher ionisation rates, the charged cluster nucleation pathway of iodic acid is unlikely to be enhanced in the upper troposphere by higher ionisation rates. Instead, the neutral nucleation channel is likely to be the dominant channel in that region. Notably, the iodine oxoacid nucleation mechanism remains unaffected by changes in relative humidity from 2% to 80%. However, under unrealistically dry conditions (below 0.008% RH at +10 °C), iodine oxides (I2O4and I2O5) significantly enhance formation rates. Therefore, we conclude that iodine oxoacid nucleation is the dominant nucleation mechanism for iodine nucleation in the marine and polar boundary layer atmosphere.

Published
2024
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16. Molecular Understanding of the Enhancement in Organic Aerosol Mass at High Relative Humidity

Author

Surdu, Mihnea, primary, Lamkaddam, Houssni, additional, Wang, Dongyu S., additional, Bell, David M., additional, Xiao, Mao, additional, Lee, Chuan Ping, additional, Li, Dandan, additional, Caudillo, Lucía, additional, Marie, Guillaume, additional, Scholz, Wiebke, additional, Wang, Mingyi, additional, Lopez, Brandon, additional, Piedehierro, Ana A., additional, Ataei, Farnoush, additional, Baalbaki, Rima, additional, Bertozzi, Barbara, additional, Bogert, Pia, additional, Brasseur, Zoé, additional, Dada, Lubna, additional, Duplissy, Jonathan, additional, Finkenzeller, Henning, additional, He, Xu-Cheng, additional, Höhler, Kristina, additional, Korhonen, Kimmo, additional, Krechmer, Jordan E., additional, Lehtipalo, Katrianne, additional, Mahfouz, Naser G. A., additional, Manninen, Hanna E., additional, Marten, Ruby, additional, Massabò, Dario, additional, Mauldin, Roy, additional, Petäjä, Tuukka, additional, Pfeifer, Joschka, additional, Philippov, Maxim, additional, Rörup, Birte, additional, Simon, Mario, additional, Shen, Jiali, additional, Umo, Nsikanabasi Silas, additional, Vogel, Franziska, additional, Weber, Stefan K., additional, Zauner-Wieczorek, Marcel, additional, Volkamer, Rainer, additional, Saathoff, Harald, additional, Möhler, Ottmar, additional, Kirkby, Jasper, additional, Worsnop, Douglas R., additional, Kulmala, Markku, additional, Stratmann, Frank, additional, Hansel, Armin, additional, Curtius, Joachim, additional, Welti, André, additional, Riva, Matthieu, additional, Donahue, Neil M., additional, Baltensperger, Urs, additional, and El Haddad, Imad, additional

Published
2023
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17. Supplementary material to "Measurement of the rate coefficients between atmospheric ions and multiply charged aerosol particles in the CERN CLOUD chamber"

Author

Pfeifer, Joschka, primary, Mahfouz, Naser G., additional, Schulze, Ben, additional, Mathot, Serge, additional, Stolzenburg, Dominik, additional, Baalbaki, Rima, additional, Brasseur, Zoé, additional, Caudillo, Lucia, additional, Dada, Lubna, additional, Granzin, Manuel, additional, He, Xu-Cheng, additional, Lamkaddam, Houssni, additional, Lopez, Brandon, additional, Makhmutov, Vladimir, additional, Marten, Ruby, additional, Mentler, Bernhard, additional, Müller, Tatjana, additional, Onnela, Antti, additional, Philippov, Maxim, additional, Piedehierro, Ana A., additional, Rörup, Birte, additional, Schervish, Meredith, additional, Tian, Ping, additional, Umo, Nsikanabasi S., additional, Wang, Dongyu S., additional, Wang, Mingyi, additional, Weber, Stefan K., additional, Welti, André, additional, Wu, Yusheng, additional, Zauner-Wieczorek, Marcel, additional, Amorim, Antonio, additional, El Haddad, Imad, additional, Kulmala, Markku, additional, Lehtipalo, Katrianne, additional, Petäjä, Tuukka, additional, Tomé, António, additional, Mirme, Sander, additional, Manninen, Hanna E., additional, Donahue, Neil M., additional, Flagan, Richard C., additional, Kürten, Andreas, additional, Curtius, Joachim, additional, and Kirkby, Jasper, additional

Published
2022
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18. Measurement of the rate coefficients between atmospheric ions and multiply charged aerosol particles in the CERN CLOUD chamber

Author

Pfeifer, Joschka, primary, Mahfouz, Naser G., additional, Schulze, Ben, additional, Mathot, Serge, additional, Stolzenburg, Dominik, additional, Baalbaki, Rima, additional, Brasseur, Zoé, additional, Caudillo, Lucia, additional, Dada, Lubna, additional, Granzin, Manuel, additional, He, Xu-Cheng, additional, Lamkaddam, Houssni, additional, Lopez, Brandon, additional, Makhmutov, Vladimir, additional, Marten, Ruby, additional, Mentler, Bernhard, additional, Müller, Tatjana, additional, Onnela, Antti, additional, Philippov, Maxim, additional, Piedehierro, Ana A., additional, Rörup, Birte, additional, Schervish, Meredith, additional, Tian, Ping, additional, Umo, Nsikanabasi S., additional, Wang, Dongyu S., additional, Wang, Mingyi, additional, Weber, Stefan K., additional, Welti, André, additional, Wu, Yusheng, additional, Zauner-Wieczorek, Marcel, additional, Amorim, Antonio, additional, El Haddad, Imad, additional, Kulmala, Markku, additional, Lehtipalo, Katrianne, additional, Petäjä, Tuukka, additional, Tomé, António, additional, Mirme, Sander, additional, Manninen, Hanna E., additional, Donahue, Neil M., additional, Flagan, Richard C., additional, Kürten, Andreas, additional, Curtius, Joachim, additional, and Kirkby, Jasper, additional

Published
2022
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19. The gas-phase formation mechanism of iodic acid as an atmospheric aerosol source

Author

Finkenzeller, Henning, primary, Iyer, Siddharth, additional, He, Xu-Cheng, additional, Simon, Mario, additional, Koenig, Theodore K., additional, Lee, Christopher F., additional, Valiev, Rashid, additional, Hofbauer, Victoria, additional, Amorim, Antonio, additional, Baalbaki, Rima, additional, Baccarini, Andrea, additional, Beck, Lisa, additional, Bell, David M., additional, Caudillo, Lucía, additional, Chen, Dexian, additional, Chiu, Randall, additional, Chu, Biwu, additional, Dada, Lubna, additional, Duplissy, Jonathan, additional, Heinritzi, Martin, additional, Kemppainen, Deniz, additional, Kim, Changhyuk, additional, Krechmer, Jordan, additional, Kürten, Andreas, additional, Kvashnin, Alexandr, additional, Lamkaddam, Houssni, additional, Lee, Chuan Ping, additional, Lehtipalo, Katrianne, additional, Li, Zijun, additional, Makhmutov, Vladimir, additional, Manninen, Hanna E., additional, Marie, Guillaume, additional, Marten, Ruby, additional, Mauldin, Roy L., additional, Mentler, Bernhard, additional, Müller, Tatjana, additional, Petäjä, Tuukka, additional, Philippov, Maxim, additional, Ranjithkumar, Ananth, additional, Rörup, Birte, additional, Shen, Jiali, additional, Stolzenburg, Dominik, additional, Tauber, Christian, additional, Tham, Yee Jun, additional, Tomé, António, additional, Vazquez-Pufleau, Miguel, additional, Wagner, Andrea C., additional, Wang, Dongyu S., additional, Wang, Mingyi, additional, Wang, Yonghong, additional, Weber, Stefan K., additional, Nie, Wei, additional, Wu, Yusheng, additional, Xiao, Mao, additional, Ye, Qing, additional, Zauner-Wieczorek, Marcel, additional, Hansel, Armin, additional, Baltensperger, Urs, additional, Brioude, Jérome, additional, Curtius, Joachim, additional, Donahue, Neil M., additional, Haddad, Imad El, additional, Flagan, Richard C., additional, Kulmala, Markku, additional, Kirkby, Jasper, additional, Sipilä, Mikko, additional, Worsnop, Douglas R., additional, Kurten, Theo, additional, Rissanen, Matti, additional, and Volkamer, Rainer, additional

Published
2022
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20. High Gas-Phase Methanesulfonic Acid Production in the OH-Initiated Oxidation of Dimethyl Sulfide at Low Temperatures

Author

Shen, Jiali, primary, Scholz, Wiebke, additional, He, Xu-Cheng, additional, Zhou, Putian, additional, Marie, Guillaume, additional, Wang, Mingyi, additional, Marten, Ruby, additional, Surdu, Mihnea, additional, Rörup, Birte, additional, Baalbaki, Rima, additional, Amorim, Antonio, additional, Ataei, Farnoush, additional, Bell, David M., additional, Bertozzi, Barbara, additional, Brasseur, Zoé, additional, Caudillo, Lucía, additional, Chen, Dexian, additional, Chu, Biwu, additional, Dada, Lubna, additional, Duplissy, Jonathan, additional, Finkenzeller, Henning, additional, Granzin, Manuel, additional, Guida, Roberto, additional, Heinritzi, Martin, additional, Hofbauer, Victoria, additional, Iyer, Siddharth, additional, Kemppainen, Deniz, additional, Kong, Weimeng, additional, Krechmer, Jordan E., additional, Kürten, Andreas, additional, Lamkaddam, Houssni, additional, Lee, Chuan Ping, additional, Lopez, Brandon, additional, Mahfouz, Naser G. A., additional, Manninen, Hanna E., additional, Massabò, Dario, additional, Mauldin, Roy L., additional, Mentler, Bernhard, additional, Müller, Tatjana, additional, Pfeifer, Joschka, additional, Philippov, Maxim, additional, Piedehierro, Ana A., additional, Roldin, Pontus, additional, Schobesberger, Siegfried, additional, Simon, Mario, additional, Stolzenburg, Dominik, additional, Tham, Yee Jun, additional, Tomé, António, additional, Umo, Nsikanabasi Silas, additional, Wang, Dongyu, additional, Wang, Yonghong, additional, Weber, Stefan K., additional, Welti, André, additional, Wollesen de Jonge, Robin, additional, Wu, Yusheng, additional, Zauner-Wieczorek, Marcel, additional, Zust, Felix, additional, Baltensperger, Urs, additional, Curtius, Joachim, additional, Flagan, Richard C., additional, Hansel, Armin, additional, Möhler, Ottmar, additional, Petäjä, Tuukka, additional, Volkamer, Rainer, additional, Kulmala, Markku, additional, Lehtipalo, Katrianne, additional, Rissanen, Matti, additional, Kirkby, Jasper, additional, El-Haddad, Imad, additional, Bianchi, Federico, additional, Sipilä, Mikko, additional, Donahue, Neil M., additional, and Worsnop, Douglas R., additional

Published
2022
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21. Ammonium CI-Orbitrap: a tool for characterizing the reactivity of oxygenated organic molecules.

Author

Dandan Li, Dongyu Wang, Caudillo, Lucia, Scholz, Wiebke, Mingyi Wang, Tomaz, Sophie, Marie, Guillaume, Surdu, Mihnea, Eccli, Elias, Xianda Gong, Gonzalez-Carracedo, Loic, Granzin, Manuel, Pfeifer, Joschka, Rörup, Birte, Schulze, Benjamin, Rantala, Pekka, Perrier, Sébastien, Hansel, Armin, Curtius, Joachim, and Kirkby, Jasper

Subjects
CHEMICAL ionization mass spectrometry, MASS spectrometry, TIME-of-flight mass spectrometers, MASS spectrometers, ATMOSPHERIC aerosols, PINENE, NUCLEAR research
Abstract

Oxygenated organic molecules (OOMs) play an important role in the formation of atmospheric aerosols. Due to various analytical challenges in measuring organic vapors, uncertainties remain in the formation and fate of OOMs. The chemical ionization Orbitrap mass spectrometer (CI-Orbitrap) has recently been shown to be a powerful technique able to accurately identify gaseous organic compounds due to its great mass resolving power. Here we present the ammonium ion (NH4+) based CI-Orbitrap as a technique capable of measuring a wide range of gaseous OOMs. The performance of the CI-(NH4+)-Orbitrap was compared with that of state-of-the-art mass spectrometers, including a nitrate ion (NO3-) based CI coupled to an atmospheric pressure interfaced to long time-of-flight mass spectrometer (APi-LTOF), a new generation of proton transfer reaction-TOF mass spectrometer (PTR3-TOF), and an iodide (I-) based CI-TOF mass spectrometer equipped with a Filter Inlet for Gases and AEROsols (FIGAERO-CIMS). The instruments were deployed simultaneously in the Cosmic Leaving OUtdoors Droplets (CLOUD) chamber at the European Organization for Nuclear Research (CERN) during the CLOUD14 campaign in 2019. Products generated from α-pinene ozonolysis across multiple experimental conditions were simultaneously measured by the mass spectrometers. NH4+-Orbitrap was able to identify the widest range of OOMs (i.e., O = 2), from low oxidized species to highly oxygenated volatile organic compounds (HOM). Excellent agreements were found between the NH4+-Orbitrap and the NO3--LTOF for characterizing HOMs and with the PTR3- TOF for the less oxidized monomeric species. A semi-quantitative information was retrieved for OOMs measured by NH4+-Orbitrap using calibration factors derived from this side-by-side comparison. As other mass spectrometry techniques used during this campaign, the detection sensitivity of NH4+-Orbitrap to OOMs is greatly affected by relative humidity, which may be related to changes in ionization efficiency and/or multiphase chemistry. Overall, this study shows that NH4+ ion46 based chemistry associated with the high mass resolving power of the Orbitrap mass analyzer can measure almost all-inclusive compounds. As a result, it is now possible to cover the entire range of compounds, which can lead to a better understanding of the oxidation processes. [ABSTRACT FROM AUTHOR]

Published
2023
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22. An intercomparison study of four different techniques for measuring the chemical composition of nanoparticles

Author

Caudillo, Lucía, primary, Surdu, Mihnea, additional, Lopez, Brandon, additional, Wang, Mingyi, additional, Thoma, Markus, additional, Bräkling, Steffen, additional, Buchholz, Angela, additional, Simon, Mario, additional, Wagner, Andrea C., additional, Müller, Tatjana, additional, Granzin, Manuel, additional, Heinritzi, Martin, additional, Amorim, Antonio, additional, Bell, David M., additional, Brasseur, Zoé, additional, Dada, Lubna, additional, Duplissy, Jonathan, additional, Finkenzeller, Henning, additional, He, Xu-Cheng, additional, Lamkaddam, Houssni, additional, Mahfouz, Naser G. A., additional, Makhmutov, Vladimir, additional, Manninen, Hanna E., additional, Marie, Guillaume, additional, Marten, Ruby, additional, Mauldin, Roy L., additional, Mentler, Bernhard, additional, Onnela, Antti, additional, Petäjä, Tuukka, additional, Pfeifer, Joschka, additional, Philippov, Maxim, additional, Piedehierro, Ana A., additional, Rörup, Birte, additional, Scholz, Wiebke, additional, Shen, Jiali, additional, Stolzenburg, Dominik, additional, Tauber, Christian, additional, Tian, Ping, additional, Tomé, António, additional, Umo, Nsikanabasi Silas, additional, Wang, Dongyu S., additional, Wang, Yonghong, additional, Weber, Stefan K., additional, Welti, André, additional, Zauner-Wieczorek, Marcel, additional, Baltensperger, Urs, additional, Flagan, Richard C., additional, Hansel, Armin, additional, Kirkby, Jasper, additional, Kulmala, Markku, additional, Lehtipalo, Katrianne, additional, Worsnop, Douglas R., additional, Haddad, Imad El, additional, Donahue, Neil M., additional, Vogel, Alexander L., additional, Kürten, Andreas, additional, and Curtius, Joachim, additional

Published
2022
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23. Supplementary material to "An intercomparison study of four different techniques for measuring the chemical composition of nanoparticles"

Author

Caudillo, Lucía, primary, Surdu, Mihnea, additional, Lopez, Brandon, additional, Wang, Mingyi, additional, Thoma, Markus, additional, Bräkling, Steffen, additional, Buchholz, Angela, additional, Simon, Mario, additional, Wagner, Andrea C., additional, Müller, Tatjana, additional, Granzin, Manuel, additional, Heinritzi, Martin, additional, Amorim, Antonio, additional, Bell, David M., additional, Brasseur, Zoé, additional, Dada, Lubna, additional, Duplissy, Jonathan, additional, Finkenzeller, Henning, additional, He, Xu-Cheng, additional, Lamkaddam, Houssni, additional, Mahfouz, Naser G. A., additional, Makhmutov, Vladimir, additional, Manninen, Hanna E., additional, Marie, Guillaume, additional, Marten, Ruby, additional, Mauldin, Roy L., additional, Mentler, Bernhard, additional, Onnela, Antti, additional, Petäjä, Tuukka, additional, Pfeifer, Joschka, additional, Philippov, Maxim, additional, Piedehierro, Ana A., additional, Rörup, Birte, additional, Scholz, Wiebke, additional, Shen, Jiali, additional, Stolzenburg, Dominik, additional, Tauber, Christian, additional, Tian, Ping, additional, Tomé, António, additional, Umo, Nsikanabasi Silas, additional, Wang, Dongyu S., additional, Wang, Yonghong, additional, Weber, Stefan K., additional, Welti, André, additional, Zauner-Wieczorek, Marcel, additional, Baltensperger, Urs, additional, Flagan, Richard C., additional, Hansel, Armin, additional, Kirkby, Jasper, additional, Kulmala, Markku, additional, Lehtipalo, Katrianne, additional, Worsnop, Douglas R., additional, Haddad, Imad El, additional, Donahue, Neil M., additional, Vogel, Alexander L., additional, Kürten, Andreas, additional, and Curtius, Joachim, additional

Published
2022
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24. Survival of newly formed particles in haze conditions

Author

Marten, Ruby, primary, Xiao, Mao, additional, Rörup, Birte, additional, Wang, Mingyi, additional, Kong, Weimeng, additional, He, Xu-Cheng, additional, Stolzenburg, Dominik, additional, Pfeifer, Joschka, additional, Marie, Guillaume, additional, Wang, Dongyu S., additional, Scholz, Wiebke, additional, Baccarini, Andrea, additional, Lee, Chuan Ping, additional, Amorim, Antonio, additional, Baalbaki, Rima, additional, Bell, David M., additional, Bertozzi, Barbara, additional, Caudillo, Lucía, additional, Chu, Biwu, additional, Dada, Lubna, additional, Duplissy, Jonathan, additional, Finkenzeller, Henning, additional, Carracedo, Loïc Gonzalez, additional, Granzin, Manuel, additional, Hansel, Armin, additional, Heinritzi, Martin, additional, Hofbauer, Victoria, additional, Kemppainen, Deniz, additional, Kürten, Andreas, additional, Lampimäki, Markus, additional, Lehtipalo, Katrianne, additional, Makhmutov, Vladimir, additional, Manninen, Hanna E., additional, Mentler, Bernhard, additional, Petäjä, Tuukka, additional, Philippov, Maxim, additional, Shen, Jiali, additional, Simon, Mario, additional, Stozhkov, Yuri, additional, Tomé, António, additional, Wagner, Andrea C., additional, Wang, Yonghong, additional, Weber, Stefan K., additional, Wu, Yusheng, additional, Zauner-Wieczorek, Marcel, additional, Curtius, Joachim, additional, Kulmala, Markku, additional, Möhler, Ottmar, additional, Volkamer, Rainer, additional, Winkler, Paul M., additional, Worsnop, Douglas R., additional, Dommen, Josef, additional, Flagan, Richard C., additional, Kirkby, Jasper, additional, Donahue, Neil M., additional, Lamkaddam, Houssni, additional, Baltensperger, Urs, additional, and El Haddad, Imad, additional

Published
2022
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25. Chemical composition of nanoparticles from <i>α</i>-pinene nucleation and the influence of isoprene and relative humidity at low temperature

Author

Caudillo, Lucía, primary, Rörup, Birte, additional, Heinritzi, Martin, additional, Marie, Guillaume, additional, Simon, Mario, additional, Wagner, Andrea C., additional, Müller, Tatjana, additional, Granzin, Manuel, additional, Amorim, Antonio, additional, Ataei, Farnoush, additional, Baalbaki, Rima, additional, Bertozzi, Barbara, additional, Brasseur, Zoé, additional, Chiu, Randall, additional, Chu, Biwu, additional, Dada, Lubna, additional, Duplissy, Jonathan, additional, Finkenzeller, Henning, additional, Gonzalez Carracedo, Loïc, additional, He, Xu-Cheng, additional, Hofbauer, Victoria, additional, Kong, Weimeng, additional, Lamkaddam, Houssni, additional, Lee, Chuan P., additional, Lopez, Brandon, additional, Mahfouz, Naser G. A., additional, Makhmutov, Vladimir, additional, Manninen, Hanna E., additional, Marten, Ruby, additional, Massabò, Dario, additional, Mauldin, Roy L., additional, Mentler, Bernhard, additional, Molteni, Ugo, additional, Onnela, Antti, additional, Pfeifer, Joschka, additional, Philippov, Maxim, additional, Piedehierro, Ana A., additional, Schervish, Meredith, additional, Scholz, Wiebke, additional, Schulze, Benjamin, additional, Shen, Jiali, additional, Stolzenburg, Dominik, additional, Stozhkov, Yuri, additional, Surdu, Mihnea, additional, Tauber, Christian, additional, Tham, Yee Jun, additional, Tian, Ping, additional, Tomé, António, additional, Vogt, Steffen, additional, Wang, Mingyi, additional, Wang, Dongyu S., additional, Weber, Stefan K., additional, Welti, André, additional, Yonghong, Wang, additional, Yusheng, Wu, additional, Zauner-Wieczorek, Marcel, additional, Baltensperger, Urs, additional, El Haddad, Imad, additional, Flagan, Richard C., additional, Hansel, Armin, additional, Höhler, Kristina, additional, Kirkby, Jasper, additional, Kulmala, Markku, additional, Lehtipalo, Katrianne, additional, Möhler, Ottmar, additional, Saathoff, Harald, additional, Volkamer, Rainer, additional, Winkler, Paul M., additional, Donahue, Neil M., additional, Kürten, Andreas, additional, and Curtius, Joachim, additional

Published
2021
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26. Supplementary material to "Chemical composition of nanoparticles from α-pinene nucleation and the influence of isoprene and relative humidity at low temperature"

Author

Caudillo, Lucía, primary, Rörup, Birte, additional, Heinritzi, Martin, additional, Marie, Guillaume, additional, Simon, Mario, additional, Wagner, Andrea C., additional, Müller, Tatjana, additional, Granzin, Manuel, additional, Amorim, Antonio, additional, Ataei, Farnoush, additional, Baalbaki, Rima, additional, Bertozzi, Barbara, additional, Brasseur, Zoé, additional, Chiu, Randall, additional, Chu, Biwu, additional, Dada, Lubna, additional, Duplissy, Jonathan, additional, Finkenzeller, Henning, additional, Gonzalez Carracedo, Loïc, additional, He, Xu-Cheng, additional, Hofbauer, Victoria, additional, Kong, Weimeng, additional, Lamkaddam, Houssni, additional, Lee, Chuan P., additional, Lopez, Brandon, additional, Mahfouz, Naser G. A., additional, Makhmutov, Vladimir, additional, Manninen, Hanna E., additional, Marten, Ruby, additional, Massabò, Dario, additional, Mauldin, Roy L., additional, Mentler, Bernhard, additional, Molteni, Ugo, additional, Onnela, Antti, additional, Pfeifer, Joschka, additional, Philippov, Maxim, additional, Piedehierro, Ana A., additional, Schervish, Meredith, additional, Scholz, Wiebke, additional, Schulze, Benjamin, additional, Shen, Jiali, additional, Stolzenburg, Dominik, additional, Stozhkov, Yuri, additional, Surdu, Mihnea, additional, Tauber, Christian, additional, Tham, Yee Jun, additional, Tian, Ping, additional, Tomé, António, additional, Vogt, Steffen, additional, Wang, Mingyi, additional, Wang, Dongyu S., additional, Weber, Stefan K., additional, Welti, André, additional, Yonghong, Wang, additional, Yusheng, Wu, additional, Zauner-Wieczorek, Marcel, additional, Baltensperger, Urs, additional, El Haddad, Imad, additional, Flagan, Richard C., additional, Hansel, Armin, additional, Höhler, Kristina, additional, Kirkby, Jasper, additional, Kulmala, Markku, additional, Lehtipalo, Katrianne, additional, Möhler, Ottmar, additional, Saathoff, Harald, additional, Volkamer, Rainer, additional, Winkler, Paul M., additional, Donahue, Neil M., additional, Kürten, Andreas, additional, and Curtius, Joachim, additional

Published
2021
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27. Chemical composition of nanoparticles from α-pinene nucleation and the influence of isoprene and relative humidity at low temperature

Author

Caudillo, Lucía, primary, Rörup, Birte, additional, Heinritzi, Martin, additional, Marie, Guillaume, additional, Simon, Mario, additional, Wagner, Andrea C., additional, Müller, Tatjana, additional, Granzin, Manuel, additional, Amorim, Antonio, additional, Ataei, Farnoush, additional, Baalbaki, Rima, additional, Bertozzi, Barbara, additional, Brasseur, Zoé, additional, Chiu, Randall, additional, Chu, Biwu, additional, Dada, Lubna, additional, Duplissy, Jonathan, additional, Finkenzeller, Henning, additional, Gonzalez Carracedo, Loïc, additional, He, Xu-Cheng, additional, Hofbauer, Victoria, additional, Kong, Weimeng, additional, Lamkaddam, Houssni, additional, Lee, Chuan P., additional, Lopez, Brandon, additional, Mahfouz, Naser G. A., additional, Makhmutov, Vladimir, additional, Manninen, Hanna E., additional, Marten, Ruby, additional, Massabò, Dario, additional, Mauldin, Roy L., additional, Mentler, Bernhard, additional, Molteni, Ugo, additional, Onnela, Antti, additional, Pfeifer, Joschka, additional, Philippov, Maxim, additional, Piedehierro, Ana A., additional, Schervish, Meredith, additional, Scholz, Wiebke, additional, Schulze, Benjamin, additional, Shen, Jiali, additional, Stolzenburg, Dominik, additional, Stozhkov, Yuri, additional, Surdu, Mihnea, additional, Tauber, Christian, additional, Tham, Yee Jun, additional, Tian, Ping, additional, Tomé, António, additional, Vogt, Steffen, additional, Wang, Mingyi, additional, Wang, Dongyu S., additional, Weber, Stefan K., additional, Welti, André, additional, Yonghong, Wang, additional, Yusheng, Wu, additional, Zauner-Wieczorek, Marcel, additional, Baltensperger, Urs, additional, El Haddad, Imad, additional, Flagan, Richard C., additional, Hansel, Armin, additional, Höhler, Kristina, additional, Kirkby, Jasper, additional, Kulmala, Markku, additional, Lehtipalo, Katrianne, additional, Möhler, Ottmar, additional, Saathoff, Harald, additional, Volkamer, Rainer, additional, Winkler, Paul M., additional, Donahue, Neil M., additional, Kürten, Andreas, additional, and Curtius, Joachim, additional

Published
2021
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28. Role of iodine oxoacids in atmospheric aerosol nucleation

Author

The CLOUD collaboration, He, Xu-Cheng, Tham, Yee Jun, Dada, Lubna, Wang, Mingyi, Stolzenburg, Dominik, Iyer, Siddharth, Shen, Jiali, Rörup, Birte, Rissanen, Matti, Schobesberger, Siegfried, Baalbaki, Rima, Jokinen, Tuija, Sarnela, Nina, Beck, Lisa J., Bianchi, Federico, Chu, Biwu, Duplissy, Jonathan, Hansel, Armin, Junninen, Heikki, Lehtipalo, Katrianne, Petäjä, Tuukka, Thakur, Roseline C., Kulmala, Markku, Kerminen, Veli-Matti, Kurten, Theo, Worsnop, Douglas R., Sipilä, Mikko, Kangasluoma, Juha, Kemppainen, Deniz, Laitinen, Totti, Wang, Yonghong, Wu, Yusheng, Yan, Chao, Zha, Qiaozhi, Zhou, Putian, INAR Physics, Polar and arctic atmospheric research (PANDA), Institute for Atmospheric and Earth System Research (INAR), Air quality research group, Helsinki Institute of Physics, Global Atmosphere-Earth surface feedbacks, and Department of Chemistry

Subjects
114 Physical sciences
Abstract

Iodic acid (HIO3) is known to form aerosol particles in coastal marine regions, but predicted nucleation and growth rates are lacking. Using the CERN CLOUD (Cosmics Leaving Outdoor Droplets) chamber, we find that the nucleation rates of HIO3 particles are rapid, even exceeding sulfuric acid-ammonia rates under similar conditions. We also find that ion-induced nucleation involves IO3- and the sequential addition of HIO3 and that it proceeds at the kinetic limit below +10 degrees C. In contrast, neutral nucleation involves the repeated sequential addition of iodous acid (HIO2) followed by HIO3, showing that HIO2 plays a key stabilizing role. Freshly formed particles are composed almost entirely of HIO3, which drives rapid particle growth at the kinetic limit. Our measurements indicate that iodine oxoacid particle formation can compete with sulfuric acid in pristine regions of the atmosphere.

Published
2021

29. Role of iodine oxoacids in atmospheric aerosol nucleation

Author

He, Xu-Cheng, Tham, Yee Jun, Dada, Lubna, Wang, Mingyi, Finkenzeller, Henning, Stolzenburg, Dominik, Iyer, Siddharth, Simon, Mario, Kürten, Andreas, Shen, Jiali, Rörup, Birte, Rissanen, Matti, Schobesberger, Siegfried, Baalbaki, Rima, Wang, Dongyu S., Koenig, Theodore K., Jokinen, Tuija, Sarnela, Nina, Beck, Lisa J., Almeida, João, Amanatidis, Stavros, Amorim, António, Ataei, Farnoush, Baccarini, Andrea, Bertozzi, Barbara, Bianchi, Federico, Brilke, Sophia, Caudillo, Lucía, Chen, Dexian, Chiu, Randall, Chu, Biwu, Dias, António, Ding, Aijun, Dommen, Josef, Duplissy, Jonathan, El Haddad, Imad, Gonzalez Carracedo, Loïc, Granzin, Manuel, Hansel, Armin, Heinritzi, Martin, Hofbauer, Victoria, Junninen, Heikki, Kangasluoma, Juha, Kemppainen, Deniz, Kim, Changhyuk, Kong, Weimeng, Krechmer, Jordan E., Kvashin, Aleksander, Laitinen, Totti, Lamkaddam, Houssni, Lee, Chuan Ping, Lehtipalo, Katrianne, Leiminger, Markus, Li, Zijun, Makhmutov, Vladimir, Manninen, Hanna E., Marie, Guillaume, Marten, Ruby, Mathot, Serge, Mauldin, Roy L., Mentler, Bernhard, Möhler, Ottmar, Müller, Tatjana, Nie, Wei, Onnela, Antti, Petäjä, Tuukka, Pfeifer, Joschka, Philippov, Maxim, Ranjithkumar, Ananth, Saiz-Lopez, Alfonso, Salma, Imre, Scholz, Wiebke, Schuchmann, Simone, Schulze, Benjamin, Steiner, Gerhard, Stozhkov, Yuri, Tauber, Christian, Tomé, António, Thakur, Roseline C., Väisänen, Olli, Vazquez-Pufleau, Miguel, Wagner, Andrea C., Wang, Yonghong, Weber, Stefan K., Winkler, Paul M., Wu, Yusheng, Xiao, Mao, Yan, Chao, Ye, Qing, Ylisirniö, Arttu, Zauner-Wieczorek, Marcel, Zha, Qiaozhi, Zhou, Putian, Flagan, Richard C., Curtius, Joachim, Baltensperger, Urs, Kulmala, Markku, Kerminen, Veli-Matti, Kurtén, Theo, Donahue, Neil M., Volkamer, Rainer, Kirkby, Jasper, Worsnop, Douglas R., Sipilä, Mikko, Tampere University, Physics, European Organization for Nuclear Research, Academy of Finland, European Commission, Consejo Superior de Investigaciones Científicas (España), Austrian Science Fund, Swiss National Science Foundation, National Science Foundation (US), Federal Ministry of Education and Research (Germany), Fundação para a Ciência e a Tecnologia (Portugal), Jiangsu Collaborative Innovation Center of Climate Change, Estonian Research Council, National Research, Development and Innovation Office (Hungary), and National Aeronautics and Space Administration (US)

Subjects
Earth sciences, ddc:550, 114 Physical sciences
Abstract

8 pags., 5 figs., Iodic acid (HIO) is known to form aerosol particles in coastal marine regions, but predicted nucleation and growth rates are lacking. Using the CERN CLOUD (Cosmics Leaving Outdoor Droplets) chamber, we find that the nucleation rates of HIOparticles are rapid, even exceeding sulfuric acid-ammonia rates under similar conditions. We also find that ion-induced nucleation involves IOand the sequential addition of HIOand that it proceeds at the kinetic limit below +10°C. In contrast, neutral nucleation involves the repeated sequential addition of iodous acid (HIO) followed by HIO, showing that HIOplays a key stabilizing role. Freshly formed particles are composed almost entirely of HIO, which drives rapid particle growth at the kinetic limit. Our measurements indicate that iodine oxoacid particle formation can compete with sulfuric acid in pristine regions of the atmosphere., We thank the European Organization for Nuclear Research (CERN) for supporting CLOUD with important technical and financial resources and for providing a particle beam from the CERN Proton Synchrotron. This research has received support from the Academy of Finland (projects 316114, 307331, 310682, 266388, 3282290, 306853, 296628, 229574, 333397, 326948, and 1325656); the European Research Council (projects 692891, 616075, 764991, 316662, 742206, and 714621); CSC – Finnish IT center; the EC Seventh Framework Programme and the EU H2020 programme Marie Skłodowska Curie ITN “CLOUD-TRAIN” (316662) and “CLOUD-MOTION” (764991); Austrian Science Fund (FWF) (J3951-N36 and P27295-N20); the Swiss National Science Foundation (20FI20_159851, 200021_169090, 200020_172602, and 20FI20_172622); the U.S. National Science Foundation (grants AGS1447056, AGS1439551, AGS1801574, AGS1620530, AGS1801897, AGS153128, AGS1649147, AGS1801280, AGS1602086, and AGS1801329); MSCA H2020 COFUND-FP-CERN2014 fellowship (665779); German Federal Ministry of Education and Research: CLOUD-16 (01LK1601A); Portuguese Foundation for Science and Technology (CERN/FIS-COM/0014/2017); Academy of Finland Centre of Excellence in Atmospheric Sciences (grant 272041); European Regional Development Fund (project MOBTT42); Jiangsu Collaborative Innovation Center for Climate Change; Yangtze River Delta Atmosphere and Earth System Science National Observation and Research Station; Estonian Research Council (project PRG714); Hungarian National Research, Development and Innovation Office (K116788 and K132254); NASA Graduate Fellowship (NASA-NNX16AP36H); and ACTRIS 2TNA H2020 OCTAVE (654109).

Published
2021

30. Chemical composition of nanoparticles from α-pinene nucleation and the influence of isoprene and relative humidity at low temperature

Author

Caudillo, Lucía, Rörup, Birte, Heinritzi, Martin, Marie, Guillaume, Simon, Mario, Wagner, Andrea C., Müller, Tatjana, Granzin, Manuel, Amorim, Antonio, Ataei, Farnoush, Baalbaki, Rima, Bertozzi, Barbara, Brasseur, Zoé, Chiu, Randall, Chu, Biwu, Dada, Lubna, Duplissy, Jonathan, Finkenzeller, Henning, Gonzalez Carracedo, Loïc, He, Xu-Cheng, Hofbauer, Victoria, Kong, Weimeng, Lamkaddam, Houssni, Lee, Chuan P., Lopez, Brandon, Mahfouz, Naser G. A., Makhmutov, Vladimir, Manninen, Hanna E., Marten, Ruby, Massabò, Dario, Mauldin, Roy L., Mentler, Bernhard, Molteni, Ugo, Onnela, Antti, Pfeifer, Joschka, Philippov, Maxim, Piedehierro, Ana A., Schervish, Meredith, Scholz, Wiebke, Schulze, Benjamin, Shen, Jiali, Stolzenburg, Dominik, Stozhkov, Yuri, Surdu, Mihnea, Tauber, Christian, Tham, Yee Jun, Tian, Ping, Tomé, António, Vogt, Steffen, Wang, Mingyi, Wang, Dongyu S., Weber, Stefan K., Welti, André, Yonghong, Wang, Yusheng, Wu, Zauner-Wieczorek, Marcel, Baltensperger, Urs, El Haddad, Imad, Flagan, Richard C., Hansel, Armin, Höhler, Kristina, Kirkby, Jasper, Kulmala, Markku, Lehtipalo, Katrianne, Möhler, Ottmar, Saathoff, Harald, Volkamer, Rainer, Winkler, Paul M., Donahue, Neil M., Kürten, Andreas, and Curtius, Joachim

Subjects
Atmospheric Science
Abstract

The abstract is available here: https://uscholar.univie.ac.at/o:1597268

Published
2021

31. Role of iodine oxoacids in atmospheric aerosol nucleation

Author

European Organization for Nuclear Research, Academy of Finland, European Commission, Consejo Superior de Investigaciones Científicas (España), Austrian Science Fund, Swiss National Science Foundation, National Science Foundation (US), Federal Ministry of Education and Research (Germany), Fundação para a Ciência e a Tecnologia (Portugal), Jiangsu Collaborative Innovation Center of Climate Change, Estonian Research Council, National Research, Development and Innovation Office (Hungary), National Aeronautics and Space Administration (US), He, Xu-Cheng, Tham, Yee Jun, Dada, Lubna, Wang, Mingyi, Finkenzeller, Henning, Stolzenburg, D., Iyer, S., Simon, Mario, Kürten, A., Shen, Jiali, Rörup, Birte, Volkamer, Rainer, Kirkby, Jasper, Worsnop, Douglas R., Sipilä, Mikko, Rissanen, Matti, Schobesberger, Siegfried, Baalbaki, Rima, Wang, Dongyo S., Koenig, T.K., Jokinen, Tuija, Sarnela, Nina, Beck, Lisa J., Almeida, João, Amanatidis, Stavros, Amorim, António, Ataei, F., Baccarini, Andrea, Bertozzi, Barbara, Bianchi, Federico, Brilke, Sophia, Caudillo, Lucía, Chen, Dexian, Chiu, Randall, Chu, Biwu, Dias, A., Ding, Aijun, Dommen, J., Duplissy, Jonathan, El Haddad, I., González Carracedo, Loïc, Granzin, Manuel, Hansel, A., Heinritzi, Martin, Hofbauer, Victoria, Junninen, Heikki, Kangasluoma, Juha, Kemppainen, Deniz, Kim, Changyuk, Kong, Weimeng, Krechmer, Jordan E., Kvashin, Aleksander, Laitinen, Totti, Lamkaddam, Houssni, Lee, Chuan Ping, Lehtipalo, Katrianne, Leiminger, Markus, Li, Zijun, Makhmutov, Vladimir, Manninen, Hanna E., Marie, Guillaume, Marten, Ruby, Mathot, Serge, Mauldin, Roy L., Mentler, Bernhard, Möhler, Ottmar, Müller, Tatjana, Nie, Wei, Onnela, Antti, Petäjä, Tuukka, Pfeifer, Joschka, Philippov, Maxim, Ranjithkumar, Ananth, Saiz-Lopez, A., Salma, Imre, Scholz, Wiebke, Schuchmann, S., Schulze, Benjamin, Steiner, Gerhard, Stozhkov, Yuri, Tauber, Christian, Tomé, António, Thakur, Roseline C., Väisänen, Olli, Vazquez-Pufleau, Miguel, Wagner, Andrea C., Wang, Yonghong, Weber, Stefan K., Winkler, Paul M., Wu, Yusheng, Xiao, Mao, Yan, Chao, Ye, Qing, Ylisirniö, Arttu, Zauner-Wieczorek, Marcel, Zha, Qiaozhi, Zhou, Putian, Flagan, Richard C., Curtius, Joachim, Baltensperger, Urs, Kulmala, Markku, Kerminen, Veli Matti, Kurtén, Theo, Donahue, Neil M., European Organization for Nuclear Research, Academy of Finland, European Commission, Consejo Superior de Investigaciones Científicas (España), Austrian Science Fund, Swiss National Science Foundation, National Science Foundation (US), Federal Ministry of Education and Research (Germany), Fundação para a Ciência e a Tecnologia (Portugal), Jiangsu Collaborative Innovation Center of Climate Change, Estonian Research Council, National Research, Development and Innovation Office (Hungary), National Aeronautics and Space Administration (US), He, Xu-Cheng, Tham, Yee Jun, Dada, Lubna, Wang, Mingyi, Finkenzeller, Henning, Stolzenburg, D., Iyer, S., Simon, Mario, Kürten, A., Shen, Jiali, Rörup, Birte, Volkamer, Rainer, Kirkby, Jasper, Worsnop, Douglas R., Sipilä, Mikko, Rissanen, Matti, Schobesberger, Siegfried, Baalbaki, Rima, Wang, Dongyo S., Koenig, T.K., Jokinen, Tuija, Sarnela, Nina, Beck, Lisa J., Almeida, João, Amanatidis, Stavros, Amorim, António, Ataei, F., Baccarini, Andrea, Bertozzi, Barbara, Bianchi, Federico, Brilke, Sophia, Caudillo, Lucía, Chen, Dexian, Chiu, Randall, Chu, Biwu, Dias, A., Ding, Aijun, Dommen, J., Duplissy, Jonathan, El Haddad, I., González Carracedo, Loïc, Granzin, Manuel, Hansel, A., Heinritzi, Martin, Hofbauer, Victoria, Junninen, Heikki, Kangasluoma, Juha, Kemppainen, Deniz, Kim, Changyuk, Kong, Weimeng, Krechmer, Jordan E., Kvashin, Aleksander, Laitinen, Totti, Lamkaddam, Houssni, Lee, Chuan Ping, Lehtipalo, Katrianne, Leiminger, Markus, Li, Zijun, Makhmutov, Vladimir, Manninen, Hanna E., Marie, Guillaume, Marten, Ruby, Mathot, Serge, Mauldin, Roy L., Mentler, Bernhard, Möhler, Ottmar, Müller, Tatjana, Nie, Wei, Onnela, Antti, Petäjä, Tuukka, Pfeifer, Joschka, Philippov, Maxim, Ranjithkumar, Ananth, Saiz-Lopez, A., Salma, Imre, Scholz, Wiebke, Schuchmann, S., Schulze, Benjamin, Steiner, Gerhard, Stozhkov, Yuri, Tauber, Christian, Tomé, António, Thakur, Roseline C., Väisänen, Olli, Vazquez-Pufleau, Miguel, Wagner, Andrea C., Wang, Yonghong, Weber, Stefan K., Winkler, Paul M., Wu, Yusheng, Xiao, Mao, Yan, Chao, Ye, Qing, Ylisirniö, Arttu, Zauner-Wieczorek, Marcel, Zha, Qiaozhi, Zhou, Putian, Flagan, Richard C., Curtius, Joachim, Baltensperger, Urs, Kulmala, Markku, Kerminen, Veli Matti, Kurtén, Theo, and Donahue, Neil M.

Abstract

Iodic acid (HIO) is known to form aerosol particles in coastal marine regions, but predicted nucleation and growth rates are lacking. Using the CERN CLOUD (Cosmics Leaving Outdoor Droplets) chamber, we find that the nucleation rates of HIOparticles are rapid, even exceeding sulfuric acid-ammonia rates under similar conditions. We also find that ion-induced nucleation involves IOand the sequential addition of HIOand that it proceeds at the kinetic limit below +10°C. In contrast, neutral nucleation involves the repeated sequential addition of iodous acid (HIO) followed by HIO, showing that HIOplays a key stabilizing role. Freshly formed particles are composed almost entirely of HIO, which drives rapid particle growth at the kinetic limit. Our measurements indicate that iodine oxoacid particle formation can compete with sulfuric acid in pristine regions of the atmosphere.

Published
2021

32. Molecular understanding of new-particle formation from α-pinene between −50 and +25 °C

Author

Simon, Mario, Dada, Lubna, Heinritzi, Martin, Scholz, Wiebke, Stolzenburg, Dominik, Fischer, Lukas, Wagner, Andrea C., Kürten, Andreas, Rörup, Birte, He, Xu-Cheng, Almeida, João, Baalbaki, Rima, Baccarini, Andrea, Bauer, Paulus S., Beck, Lisa, Bergen, Anton, Bianchi, Federico, Bräkling, Steffen, Brilke, Sophia, Caudillo, Lucia, Chen, Dexian, Chu, Biwu, Dias, António, Draper, Danielle C., Duplissy, Jonathan, El-Haddad, Imad, Finkenzeller, Henning, Frege, Carla, Gonzalez-Carracedo, Loic, Gordon, Hamish, Granzin, Manuel, Hakala, Jani, Hofbauer, Victoria, Hoyle, Christopher R., Kim, Changhyuk, Kong, Weimeng, Lamkaddam, Houssni, Lee, Chuan P., Lehtipalo, Katrianne, Leiminger, Markus, Mai, Huajun, Manninen, Hanna E., Marie, Guillaume, Marten, Ruby, Mentler, Bernhard, Molteni, Ugo, Nichman, Leonid, Nie, Wei, Ojdanic, Andrea, Onnela, Antti, Partoll, Eva, Petäjä, Tuukka, Pfeifer, Joschka, Philippov, Maxim, Quéléver, Lauriane L. J., Ranjithkumar, Ananth, Rissanen, Matti P., Schallhart, Simon, Schobesberger, Siegfried, Schuchmann, Simone, Shen, Jiali, Sipilä, Mikko, Steiner, Gerhard, Stozhkov, Yuri, Tauber, Christian, Tham, Yee J., Tomé, António R., Vazquez-Pufleau, Miguel, Vogel, Alexander L., Wagner, Robert, Wang, Mingyi, Wang, Dongyu S., Wang, Yonghong, Weber, Stefan K., Wu, Yusheng, Xiao, Mao, Yan, Chao, Ye, Penglin, Ye, Qing, Zauner-Wieczorek, Marcel, Zhou, Xueqin, Baltensperger, Urs, Dommen, Josef, Flagan, Richard C., Hansel, Armin, Kulmala, Markku, Volkamer, Rainer, Winkler, Paul M., Worsnop, Douglas R., Donahue, Neil M., Kirkby, Jasper, Curtius, Joachim, Tampere University, and Physics

Subjects
Atmospheric Science, 114 Physical sciences
Abstract

Highly oxygenated organic molecules (HOMs) contribute substantially to the formation and growth of atmospheric aerosol particles, which affect air quality, human health and Earth s climate. HOMs are formed by rapid, gasphase autoxidation of volatile organic compounds (VOCs) such as -pinene, the most abundant monoterpene in the atmosphere. Due to their abundance and low volatility, HOMs can play an important role in new-particle formation (NPF) and the early growth of atmospheric aerosols, even without any further assistance of other low-volatility compounds such as sulfuric acid. Both the autoxidation reaction forming HOMs and their NPF rates are expected to be strongly dependent on temperature. However, experimental data on both effects are limited. Dedicated experiments were performed at the CLOUD (Cosmics Leaving OUtdoor Droplets) chamber at CERN to address this question. In this study, we show that a decrease in temperature (from C25 to 50 C) results in a reduced HOM yield and reduced oxidation state of the products, whereas the NPF rates (J1:7 nm) increase substantially. Measurements with two different chemical ionization mass spectrometers (using nitrate and protonated water as reagent ion, respectively) provide the molecular composition of the gaseous oxidation products, and a two-dimensional volatility basis set (2D VBS) model provides their volatility distribution. The HOM yield decreases with temperature from 6.2% at 25 C to 0.7% at 50 C. However, there is a strong reduction of the saturation vapor pressure of each oxidation state as the temperature is reduced. Overall, the reduction in volatility with temperature leads to an increase in the nucleation rates by up to 3 orders of magnitude at 50 C compared with 25 C. In addition, the enhancement of the nucleation rates by ions decreases with decreasing temperature, since the neutral molecular clusters have increased stability against evaporation. The resulting data quantify how the interplay between the temperature-dependent oxidation pathways and the associated vapor pressures affect biogenic NPF at the molecular level. Our measurements, therefore, improve our understanding of pure biogenic NPF for a wide range of tropospheric temperatures and precursor concentrations. publishedVersion

Published
2020

33. Synergistic HNO3–H2SO4–NH3 upper tropospheric particle formation.

Author

Wang, Mingyi, Xiao, Mao, Bertozzi, Barbara, Marie, Guillaume, Rörup, Birte, Schulze, Benjamin, Bardakov, Roman, He, Xu-Cheng, Shen, Jiali, Scholz, Wiebke, Marten, Ruby, Dada, Lubna, Baalbaki, Rima, Lopez, Brandon, Lamkaddam, Houssni, Manninen, Hanna E., Amorim, António, Ataei, Farnoush, Bogert, Pia, and Brasseur, Zoé

Abstract

New particle formation in the upper free troposphere is a major global source of cloud condensation nuclei (CCN)1–4. However, the precursor vapours that drive the process are not well understood. With experiments performed under upper tropospheric conditions in the CERN CLOUD chamber, we show that nitric acid, sulfuric acid and ammonia form particles synergistically, at rates that are orders of magnitude faster than those from any two of the three components. The importance of this mechanism depends on the availability of ammonia, which was previously thought to be efficiently scavenged by cloud droplets during convection. However, surprisingly high concentrations of ammonia and ammonium nitrate have recently been observed in the upper troposphere over the Asian monsoon region5,6. Once particles have formed, co-condensation of ammonia and abundant nitric acid alone is sufficient to drive rapid growth to CCN sizes with only trace sulfate. Moreover, our measurements show that these CCN are also highly efficient ice nucleating particles—comparable to desert dust. Our model simulations confirm that ammonia is efficiently convected aloft during the Asian monsoon, driving rapid, multi-acid HNO3–H2SO4–NH3 nucleation in the upper troposphere and producing ice nucleating particles that spread across the mid-latitude Northern Hemisphere.By performing experiments under upper tropospheric conditions, nitric acid, sulfuric acid and ammonia can form particles synergistically, at rates orders of magnitude faster than any two of the three components. [ABSTRACT FROM AUTHOR]

Published
2022
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34. Molecular understanding of new-particle formation from <i>α</i>-pinene between −50 and +25 °C

Author

Simon, Mario, primary, Dada, Lubna, additional, Heinritzi, Martin, additional, Scholz, Wiebke, additional, Stolzenburg, Dominik, additional, Fischer, Lukas, additional, Wagner, Andrea C., additional, Kürten, Andreas, additional, Rörup, Birte, additional, He, Xu-Cheng, additional, Almeida, João, additional, Baalbaki, Rima, additional, Baccarini, Andrea, additional, Bauer, Paulus S., additional, Beck, Lisa, additional, Bergen, Anton, additional, Bianchi, Federico, additional, Bräkling, Steffen, additional, Brilke, Sophia, additional, Caudillo, Lucia, additional, Chen, Dexian, additional, Chu, Biwu, additional, Dias, António, additional, Draper, Danielle C., additional, Duplissy, Jonathan, additional, El-Haddad, Imad, additional, Finkenzeller, Henning, additional, Frege, Carla, additional, Gonzalez-Carracedo, Loic, additional, Gordon, Hamish, additional, Granzin, Manuel, additional, Hakala, Jani, additional, Hofbauer, Victoria, additional, Hoyle, Christopher R., additional, Kim, Changhyuk, additional, Kong, Weimeng, additional, Lamkaddam, Houssni, additional, Lee, Chuan P., additional, Lehtipalo, Katrianne, additional, Leiminger, Markus, additional, Mai, Huajun, additional, Manninen, Hanna E., additional, Marie, Guillaume, additional, Marten, Ruby, additional, Mentler, Bernhard, additional, Molteni, Ugo, additional, Nichman, Leonid, additional, Nie, Wei, additional, Ojdanic, Andrea, additional, Onnela, Antti, additional, Partoll, Eva, additional, Petäjä, Tuukka, additional, Pfeifer, Joschka, additional, Philippov, Maxim, additional, Quéléver, Lauriane L. J., additional, Ranjithkumar, Ananth, additional, Rissanen, Matti P., additional, Schallhart, Simon, additional, Schobesberger, Siegfried, additional, Schuchmann, Simone, additional, Shen, Jiali, additional, Sipilä, Mikko, additional, Steiner, Gerhard, additional, Stozhkov, Yuri, additional, Tauber, Christian, additional, Tham, Yee J., additional, Tomé, António R., additional, Vazquez-Pufleau, Miguel, additional, Vogel, Alexander L., additional, Wagner, Robert, additional, Wang, Mingyi, additional, Wang, Dongyu S., additional, Wang, Yonghong, additional, Weber, Stefan K., additional, Wu, Yusheng, additional, Xiao, Mao, additional, Yan, Chao, additional, Ye, Penglin, additional, Ye, Qing, additional, Zauner-Wieczorek, Marcel, additional, Zhou, Xueqin, additional, Baltensperger, Urs, additional, Dommen, Josef, additional, Flagan, Richard C., additional, Hansel, Armin, additional, Kulmala, Markku, additional, Volkamer, Rainer, additional, Winkler, Paul M., additional, Worsnop, Douglas R., additional, Donahue, Neil M., additional, Kirkby, Jasper, additional, and Curtius, Joachim, additional

Published
2020
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35. Enhanced growth rate of atmospheric particles from sulfuric acid

Author

Stolzenburg, Dominik, primary, Simon, Mario, additional, Ranjithkumar, Ananth, additional, Kürten, Andreas, additional, Lehtipalo, Katrianne, additional, Gordon, Hamish, additional, Ehrhart, Sebastian, additional, Finkenzeller, Henning, additional, Pichelstorfer, Lukas, additional, Nieminen, Tuomo, additional, He, Xu-Cheng, additional, Brilke, Sophia, additional, Xiao, Mao, additional, Amorim, António, additional, Baalbaki, Rima, additional, Baccarini, Andrea, additional, Beck, Lisa, additional, Bräkling, Steffen, additional, Caudillo Murillo, Lucía, additional, Chen, Dexian, additional, Chu, Biwu, additional, Dada, Lubna, additional, Dias, António, additional, Dommen, Josef, additional, Duplissy, Jonathan, additional, El Haddad, Imad, additional, Fischer, Lukas, additional, Gonzalez Carracedo, Loic, additional, Heinritzi, Martin, additional, Kim, Changhyuk, additional, Koenig, Theodore K., additional, Kong, Weimeng, additional, Lamkaddam, Houssni, additional, Lee, Chuan Ping, additional, Leiminger, Markus, additional, Li, Zijun, additional, Makhmutov, Vladimir, additional, Manninen, Hanna E., additional, Marie, Guillaume, additional, Marten, Ruby, additional, Müller, Tatjana, additional, Nie, Wei, additional, Partoll, Eva, additional, Petäjä, Tuukka, additional, Pfeifer, Joschka, additional, Philippov, Maxim, additional, Rissanen, Matti P., additional, Rörup, Birte, additional, Schobesberger, Siegfried, additional, Schuchmann, Simone, additional, Shen, Jiali, additional, Sipilä, Mikko, additional, Steiner, Gerhard, additional, Stozhkov, Yuri, additional, Tauber, Christian, additional, Tham, Yee Jun, additional, Tomé, António, additional, Vazquez-Pufleau, Miguel, additional, Wagner, Andrea C., additional, Wang, Mingyi, additional, Wang, Yonghong, additional, Weber, Stefan K., additional, Wimmer, Daniela, additional, Wlasits, Peter J., additional, Wu, Yusheng, additional, Ye, Qing, additional, Zauner-Wieczorek, Marcel, additional, Baltensperger, Urs, additional, Carslaw, Kenneth S., additional, Curtius, Joachim, additional, Donahue, Neil M., additional, Flagan, Richard C., additional, Hansel, Armin, additional, Kulmala, Markku, additional, Lelieveld, Jos, additional, Volkamer, Rainer, additional, Kirkby, Jasper, additional, and Winkler, Paul M., additional

Published
2020
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37. Molecular understanding of new-particle formation from alpha-pinene between −50 °C and 25 °C

Author

Simon, Mario, primary, Dada, Lubna, additional, Heinritzi, Martin, additional, Scholz, Wiebke, additional, Stolzenburg, Dominik, additional, Fischer, Lukas, additional, Wagner, Andrea C., additional, Kürten, Andreas, additional, Rörup, Birte, additional, He, Xu-Cheng, additional, Almeida, João, additional, Baalbaki, Rima, additional, Baccarini, Andrea, additional, Bauer, Paulus S., additional, Beck, Lisa, additional, Bergen, Anton, additional, Bianchi, Federico, additional, Bräkling, Steffen, additional, Brilke, Sophia, additional, Caudillo, Lucia, additional, Chen, Dexian, additional, Chu, Biwu, additional, Dias, António, additional, Draper, Danielle C., additional, Duplissy, Jonathan, additional, El Haddad, Imad, additional, Finkenzeller, Henning, additional, Frege, Carla, additional, Gonzalez-Carracedo, Loic, additional, Gordon, Hamish, additional, Granzin, Manuel, additional, Hakala, Jani, additional, Hofbauer, Victoria, additional, Hoyle, Christopher R., additional, Kim, Changhyuk, additional, Kong, Weimeng, additional, Lamkaddam, Houssni, additional, Lee, Chuan P., additional, Lehtipalo, Katrianne, additional, Leiminger, Markus, additional, Mai, Huajun, additional, Manninen, Hanna E., additional, Marie, Guillaume, additional, Marten, Ruby, additional, Mentler, Bernhard, additional, Molteni, Ugo, additional, Nichman, Leonid, additional, Nie, Wei, additional, Ojdanic, Andrea, additional, Onnela, Antti, additional, Partoll, Eva, additional, Petäjä, Tuukka, additional, Pfeifer, Joschka, additional, Philippov, Maxim, additional, Quéléver, Lauriane L. J., additional, Ranjithkumar, Ananth, additional, Rissanen, Matti, additional, Schallhart, Simon, additional, Schobesberger, Siegfried, additional, Schuchmann, Simone, additional, Shen, Jiali, additional, Sipilä, Mikko, additional, Steiner, Gerhard, additional, Stozhkov, Yuri, additional, Tauber, Christian, additional, Tham, Yee J., additional, Tomé, António R., additional, Vazquez-Pufleau, Miguel, additional, Vogel, Alexander, additional, Wagner, Robert, additional, Wang, Mingyi, additional, Wang, Dongyu S., additional, Wang, Yonghong, additional, Weber, Stefan K., additional, Wu, Yusheng, additional, Xiao, Mao, additional, Yan, Chao, additional, Ye, Penglin, additional, Ye, Qing, additional, Zauner-Wieczorek, Marcel, additional, Zhou, Xueqin, additional, Baltensperger, Urs, additional, Dommen, Josef, additional, Flagan, Rick C., additional, Hansel, Armin, additional, Kulmala, Markku, additional, Volkamer, Rainer, additional, Winkler, Paul M., additional, Worsnop, Douglas R., additional, Donahue, Neil M., additional, Kirkby, Jasper, additional, and Curtius, Joachim, additional

Published
2020
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38. Supplementary material to "Molecular understanding of new-particle formation from alpha-pinene between −50 °C and 25 °C"

Author

Simon, Mario, primary, Dada, Lubna, additional, Heinritzi, Martin, additional, Scholz, Wiebke, additional, Stolzenburg, Dominik, additional, Fischer, Lukas, additional, Wagner, Andrea C., additional, Kürten, Andreas, additional, Rörup, Birte, additional, He, Xu-Cheng, additional, Almeida, João, additional, Baalbaki, Rima, additional, Baccarini, Andrea, additional, Bauer, Paulus S., additional, Beck, Lisa, additional, Bergen, Anton, additional, Bianchi, Federico, additional, Bräkling, Steffen, additional, Brilke, Sophia, additional, Caudillo, Lucia, additional, Chen, Dexian, additional, Chu, Biwu, additional, Dias, António, additional, Draper, Danielle C., additional, Duplissy, Jonathan, additional, El Haddad, Imad, additional, Finkenzeller, Henning, additional, Frege, Carla, additional, Gonzalez-Carracedo, Loic, additional, Gordon, Hamish, additional, Granzin, Manuel, additional, Hakala, Jani, additional, Hofbauer, Victoria, additional, Hoyle, Christopher R., additional, Kim, Changhyuk, additional, Kong, Weimeng, additional, Lamkaddam, Houssni, additional, Lee, Chuan P., additional, Lehtipalo, Katrianne, additional, Leiminger, Markus, additional, Mai, Huajun, additional, Manninen, Hanna E., additional, Marie, Guillaume, additional, Marten, Ruby, additional, Mentler, Bernhard, additional, Molteni, Ugo, additional, Nichman, Leonid, additional, Nie, Wei, additional, Ojdanic, Andrea, additional, Onnela, Antti, additional, Partoll, Eva, additional, Petäjä, Tuukka, additional, Pfeifer, Joschka, additional, Philippov, Maxim, additional, Quéléver, Lauriane L. J., additional, Ranjithkumar, Ananth, additional, Rissanen, Matti, additional, Schallhart, Simon, additional, Schobesberger, Siegfried, additional, Schuchmann, Simone, additional, Shen, Jiali, additional, Sipilä, Mikko, additional, Steiner, Gerhard, additional, Stozhkov, Yuri, additional, Tauber, Christian, additional, Tham, Yee J., additional, Tomé, António R., additional, Vazquez-Pufleau, Miguel, additional, Vogel, Alexander, additional, Wagner, Robert, additional, Wang, Mingyi, additional, Wang, Dongyu S., additional, Wang, Yonghong, additional, Weber, Stefan K., additional, Wu, Yusheng, additional, Xiao, Mao, additional, Yan, Chao, additional, Ye, Penglin, additional, Ye, Qing, additional, Zauner-Wieczorek, Marcel, additional, Zhou, Xueqin, additional, Baltensperger, Urs, additional, Dommen, Josef, additional, Flagan, Rick C., additional, Hansel, Armin, additional, Kulmala, Markku, additional, Volkamer, Rainer, additional, Winkler, Paul M., additional, Worsnop, Douglas R., additional, Donahue, Neil M., additional, Kirkby, Jasper, additional, and Curtius, Joachim, additional

Published
2020
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39. Synergistic HNO3–H2SO4–NH3upper tropospheric particle formation

Author

Wang, Mingyi, Xiao, Mao, Bertozzi, Barbara, Marie, Guillaume, Rörup, Birte, Schulze, Benjamin, Bardakov, Roman, He, Xu-Cheng, Shen, Jiali, Scholz, Wiebke, Marten, Ruby, Dada, Lubna, Baalbaki, Rima, Lopez, Brandon, Lamkaddam, Houssni, Manninen, Hanna E., Amorim, António, Ataei, Farnoush, Bogert, Pia, Brasseur, Zoé, Caudillo, Lucía, De Menezes, Louis-Philippe, Duplissy, Jonathan, Ekman, Annica M. L., Finkenzeller, Henning, Carracedo, Loïc Gonzalez, Granzin, Manuel, Guida, Roberto, Heinritzi, Martin, Hofbauer, Victoria, Höhler, Kristina, Korhonen, Kimmo, Krechmer, Jordan E., Kürten, Andreas, Lehtipalo, Katrianne, Mahfouz, Naser G. A., Makhmutov, Vladimir, Massabò, Dario, Mathot, Serge, Mauldin, Roy L., Mentler, Bernhard, Müller, Tatjana, Onnela, Antti, Petäjä, Tuukka, Philippov, Maxim, Piedehierro, Ana A., Pozzer, Andrea, Ranjithkumar, Ananth, Schervish, Meredith, Schobesberger, Siegfried, Simon, Mario, Stozhkov, Yuri, Tomé, António, Umo, Nsikanabasi Silas, Vogel, Franziska, Wagner, Robert, Wang, Dongyu S., Weber, Stefan K., Welti, André, Wu, Yusheng, Zauner-Wieczorek, Marcel, Sipilä, Mikko, Winkler, Paul M., Hansel, Armin, Baltensperger, Urs, Kulmala, Markku, Flagan, Richard C., Curtius, Joachim, Riipinen, Ilona, Gordon, Hamish, Lelieveld, Jos, El-Haddad, Imad, Volkamer, Rainer, Worsnop, Douglas R., Christoudias, Theodoros, Kirkby, Jasper, Möhler, Ottmar, and Donahue, Neil M.

Abstract

New particle formation in the upper free troposphere is a major global source of cloud condensation nuclei (CCN)1–4. However, the precursor vapours that drive the process are not well understood. With experiments performed under upper tropospheric conditions in the CERN CLOUD chamber, we show that nitric acid, sulfuric acid and ammonia form particles synergistically, at rates that are orders of magnitude faster than those from any two of the three components. The importance of this mechanism depends on the availability of ammonia, which was previously thought to be efficiently scavenged by cloud droplets during convection. However, surprisingly high concentrations of ammonia and ammonium nitrate have recently been observed in the upper troposphere over the Asian monsoon region5,6. Once particles have formed, co-condensation of ammonia and abundant nitric acid alone is sufficient to drive rapid growth to CCN sizes with only trace sulfate. Moreover, our measurements show that these CCN are also highly efficient ice nucleating particles—comparable to desert dust. Our model simulations confirm that ammonia is efficiently convected aloft during the Asian monsoon, driving rapid, multi-acid HNO3–H2SO4–NH3nucleation in the upper troposphere and producing ice nucleating particles that spread across the mid-latitude Northern Hemisphere.

Published
2022
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40. Enhanced growth rate of atmospheric particles from sulfuric acid

Author

Stolzenburg, Dominik, primary, Simon, Mario, additional, Ranjithkumar, Ananth, additional, Kürten, Andreas, additional, Lehtipalo, Katrianne, additional, Gordon, Hamish, additional, Nieminen, Tuomo, additional, Pichelstorfer, Lukas, additional, He, Xu-Cheng, additional, Brilke, Sophia, additional, Xiao, Mao, additional, Amorim, António, additional, Baalbaki, Rima, additional, Baccarini, Andrea, additional, Beck, Lisa, additional, Bräkling, Steffen, additional, Caudillo Murillo, Lucía, additional, Chen, Dexian, additional, Chu, Biwu, additional, Dada, Lubna, additional, Dias, António, additional, Dommen, Josef, additional, Duplissy, Jonathan, additional, El Haddad, Imad, additional, Finkenzeller, Henning, additional, Fischer, Lukas, additional, Gonzalez Carracedo, Loic, additional, Heinritzi, Martin, additional, Kim, Changhyuk, additional, Koenig, Theodore K., additional, Kong, Weimeng, additional, Lamkaddam, Houssni, additional, Lee, Chuan Ping, additional, Leiminger, Markus, additional, Li, Zijun, additional, Makhmutov, Vladimir, additional, Manninen, Hanna E., additional, Marie, Guillaume, additional, Marten, Ruby, additional, Müller, Tatjana, additional, Nie, Wei, additional, Partoll, Eva, additional, Petäjä, Tuukka, additional, Pfeifer, Joschka, additional, Philippov, Maxim, additional, Rissanen, Matti P., additional, Rörup, Birte, additional, Schobesberger, Siegfried, additional, Schuchmann, Simone, additional, Shen, Jiali, additional, Sipilä, Mikko, additional, Steiner, Gerhard, additional, Stozhkov, Yuri, additional, Tauber, Christian, additional, Tham, Yee Jun, additional, Tomé, António, additional, Vazquez-Pufleau, Miguel, additional, Wagner, Andrea C., additional, Wang, Mingyi, additional, Wang, Yonghong, additional, Weber, Stefan K., additional, Wimmer, Daniela, additional, Wlasits, Peter J., additional, Wu, Yusheng, additional, Ye, Qing, additional, Zauner-Wieczorek, Marcel, additional, Baltensperger, Urs, additional, Carslaw, Kenneth S., additional, Curtius, Joachim, additional, Donahue, Neil M., additional, Flagan, Richard C., additional, Hansel, Armin, additional, Kulmala, Markku, additional, Volkamer, Rainer, additional, Kirkby, Jasper, additional, and Winkler, Paul M., additional

Published
2019
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41. Supplementary material to "Enhanced growth rate of atmospheric particles from sulfuric acid"

Author

Stolzenburg, Dominik, primary, Simon, Mario, additional, Ranjithkumar, Ananth, additional, Kürten, Andreas, additional, Lehtipalo, Katrianne, additional, Gordon, Hamish, additional, Nieminen, Tuomo, additional, Pichelstorfer, Lukas, additional, He, Xu-Cheng, additional, Brilke, Sophia, additional, Xiao, Mao, additional, Amorim, António, additional, Baalbaki, Rima, additional, Baccarini, Andrea, additional, Beck, Lisa, additional, Bräkling, Steffen, additional, Caudillo Murillo, Lucía, additional, Chen, Dexian, additional, Chu, Biwu, additional, Dada, Lubna, additional, Dias, António, additional, Dommen, Josef, additional, Duplissy, Jonathan, additional, El Haddad, Imad, additional, Finkenzeller, Henning, additional, Fischer, Lukas, additional, Gonzalez Carracedo, Loic, additional, Heinritzi, Martin, additional, Kim, Changhyuk, additional, Koenig, Theodore K., additional, Kong, Weimeng, additional, Lamkaddam, Houssni, additional, Lee, Chuan Ping, additional, Leiminger, Markus, additional, Li, Zijun, additional, Makhmutov, Vladimir, additional, Manninen, Hanna E., additional, Marie, Guillaume, additional, Marten, Ruby, additional, Müller, Tatjana, additional, Nie, Wei, additional, Partoll, Eva, additional, Petäjä, Tuukka, additional, Pfeifer, Joschka, additional, Philippov, Maxim, additional, Rissanen, Matti P., additional, Rörup, Birte, additional, Schobesberger, Siegfried, additional, Schuchmann, Simone, additional, Shen, Jiali, additional, Sipilä, Mikko, additional, Steiner, Gerhard, additional, Stozhkov, Yuri, additional, Tauber, Christian, additional, Tham, Yee Jun, additional, Tomé, António, additional, Vazquez-Pufleau, Miguel, additional, Wagner, Andrea C., additional, Wang, Mingyi, additional, Wang, Yonghong, additional, Weber, Stefan K., additional, Wimmer, Daniela, additional, Wlasits, Peter J., additional, Wu, Yusheng, additional, Ye, Qing, additional, Zauner-Wieczorek, Marcel, additional, Baltensperger, Urs, additional, Carslaw, Kenneth S., additional, Curtius, Joachim, additional, Donahue, Neil M., additional, Flagan, Richard C., additional, Hansel, Armin, additional, Kulmala, Markku, additional, Volkamer, Rainer, additional, Kirkby, Jasper, additional, and Winkler, Paul M., additional

Published
2019
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42. Molecular understanding of new-particle formation from α-pinene between -50 and +25 ∘C.

Author

Simon, Mario, Dada, Lubna, Heinritzi, Martin, Scholz, Wiebke, Stolzenburg, Dominik, Fischer, Lukas, Wagner, Andrea C., Kürten, Andreas, Rörup, Birte, He, Xu-Cheng, Almeida, João, Baalbaki, Rima, Baccarini, Andrea, Bauer, Paulus S., Beck, Lisa, Bergen, Anton, Bianchi, Federico, Bräkling, Steffen, Brilke, Sophia, and Caudillo, Lucia

Subjects
PINENE, SATURATION vapor pressure, CHEMICAL ionization mass spectrometry, ATMOSPHERIC aerosols, MOLECULAR clusters, OXIDATION states, VAPOR pressure
Abstract

Highly oxygenated organic molecules (HOMs) contribute substantially to the formation and growth of atmospheric aerosol particles, which affect air quality, human health and Earth's climate. HOMs are formed by rapid, gas-phase autoxidation of volatile organic compounds (VOCs) such as α -pinene, the most abundant monoterpene in the atmosphere. Due to their abundance and low volatility, HOMs can play an important role in new-particle formation (NPF) and the early growth of atmospheric aerosols, even without any further assistance of other low-volatility compounds such as sulfuric acid. Both the autoxidation reaction forming HOMs and their NPF rates are expected to be strongly dependent on temperature. However, experimental data on both effects are limited. Dedicated experiments were performed at the CLOUD (Cosmics Leaving OUtdoor Droplets) chamber at CERN to address this question. In this study, we show that a decrease in temperature (from +25 to -50 ∘ C) results in a reduced HOM yield and reduced oxidation state of the products, whereas the NPF rates (J1.7nm) increase substantially. Measurements with two different chemical ionization mass spectrometers (using nitrate and protonated water as reagent ion, respectively) provide the molecular composition of the gaseous oxidation products, and a two-dimensional volatility basis set (2D VBS) model provides their volatility distribution. The HOM yield decreases with temperature from 6.2 % at 25 ∘ C to 0.7 % at -50 ∘ C. However, there is a strong reduction of the saturation vapor pressure of each oxidation state as the temperature is reduced. Overall, the reduction in volatility with temperature leads to an increase in the nucleation rates by up to 3 orders of magnitude at -50 ∘ C compared with 25 ∘ C. In addition, the enhancement of the nucleation rates by ions decreases with decreasing temperature, since the neutral molecular clusters have increased stability against evaporation. The resulting data quantify how the interplay between the temperature-dependent oxidation pathways and the associated vapor pressures affect biogenic NPF at the molecular level. Our measurements, therefore, improve our understanding of pure biogenic NPF for a wide range of tropospheric temperatures and precursor concentrations. [ABSTRACT FROM AUTHOR]

Published
2020
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43. Molecular understanding of new-particle formation from alpha-pinene between -50 °C and 25 °C.

Author

Simon, Mario, Dada, Lubna, Heinritzi, Martin, Scholz, Wiebke, Stolzenburg, Dominik, Fischer, Lukas, Wagner, Andrea C., Kürten, Andreas, Rörup, Birte, Xu-Cheng He, Almeida, João, Baalbaki, Rima, Baccarini, Andrea, Bauer, Paulus S., Beck, Lisa, Bergen, Anton, Bianchi, Federico, Bräkling, Steffen, Brilke, Sophia, and Caudillo, Lucia

Abstract

Highly-oxygenated organic molecules (HOMs) contribute substantially to the formation and growth of atmospheric aerosol particles, which affect air quality, human health and Earth's climate. HOMs are formed by rapid, gas-phase autoxidation of volatile organic compounds (VOCs) such as α-pinene, the most abundant monoterpene in the atmosphere. Due to their abundance and low volatility, HOMs can play an important role for new-particle formation (NPF) and the early growth of atmospheric aerosols, even without any further assistance of other low-volatility compounds such as sulfuric acid. Both the autoxidation reaction forming HOMs and their new-particle formation rates are expected to be strongly dependent on temperature. However, experimental data on both effects are limited. Dedicated experiments were performed at the CLOUD (Cosmics Leaving OUtdoor Droplets) chamber at CERN to address this question. In this study, we show that a decrease in temperature (from +25 to -50 °C) results in a reduced HOM yield and reduced oxidation state of the products, whereas the new-particle formation rates (J1.7 nm) increase substantially. Measurements with two different chemical ionization mass spectrometers (using nitrate and protonated water as reagent ion, respectively) provide the molecular composition of the gaseous oxidation products and a 2-dimensional volatility basis set model (2D-VBS) provides their volatility distribution. The HOM yield decreases with temperature from 6.2 % at 25 °C to 0.7 % at -50 °C. However, there is a strong reduction of the saturation vapor pressure of each oxidation state as the temperature is reduced. Overall, the reduction in volatility with temperature leads to an increase in the nucleation rates by up to three orders of magnitude at -50 °C compared with 25 °C. In addition, the enhancement of the nucleation rates by ions decreases with decreasing temperature, since the neutral molecular clusters have increased stability against evaporation. The resulting data quantify how the interplay between the temperature-dependent oxidation pathways and the associated vapor pressures affect biogenic new-particle formation at the molecular level. Our measurements therefore improve our understanding of pure biogenic new-particle formation for a wide range of tropospheric temperatures and precursor concentrations. [ABSTRACT FROM AUTHOR]

Published
2020
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44. Synergistic particle formation in the upper troposphere by nitric acid, sulfuric acid and ammonia

Author

Wang, Mingyi, Xiao, Mao, Bertozzi, Barbara, Marie, Guillaume, Rörup, Birte, Schulze, Benjamin, Bardakov, Roman, He, Xu-Cheng, Shen, Jiali, Scholz, Wiebke, Marten, Ruby, Dada, Lubna, Baalbaki, Rima, Lopez, Brandon, Lamkaddam, Houssni, Manninen, Hanna E., Amorim, António, Ataei, Farnoush, Bogert, Pia, Brasseur, Zoé, Caudillo, Lucı́a, De Menezes, Louis-Philippe, Duplissy, Jonathan, Ekman, Annica M. L., Finkenzeller, Henning, Gonzalez Carracedo, Loı̈c, Granzin, Manuel, Guida, Roberto, Heinritzi, Martin, Hofbauer, Victoria, Höhler, Kristina, Krechmer, Jordan E., Kürten, Andreas, Lehtipalo, Katrianne, Mahfouz, Naser G. A., Makhmutov, Vladimir, Massabò, Dario, Mathot, Serge, Mauldin, Roy L., Mentler, Bernhard, Müller, Tatjana, Onnela, Antti, Philippov, Maxim, Piedehierro, Ana A., Pozzer, Andrea, Ranjithkumar, Ananth, Schervish, Meredith, Simon, Mario, Stozhkov, Yuri, Tomé, António, Umo, Nsikanabasi Silas, Vogel, Franziska, Wagner, Robert, Wang, Dongyu S., Weber, Stefan K., Welti, André, Wu, Yusheng, Zauner-Wieczorek, Marcel, Sipilä, Mikko, Winkler, Paul M., Hansel, Armin, Baltensperger, Urs, Kulmala, Markku, Flagan, Richard C., Curtius, Joachim, Volkamer, Rainer, Riipinen, Ilona, Gordon, Hamish, Lelieveld, Jos, El-Haddad, Imad, Worsnop, Douglas R., Christoudias, Theodoros, Kirkby, Jasper, Möhler, Ottmar, Donahue, Neil M., Wang, Mingyi, Xiao, Mao, Bertozzi, Barbara, Marie, Guillaume, Rörup, Birte, Schulze, Benjamin, Bardakov, Roman, He, Xu-Cheng, Shen, Jiali, Scholz, Wiebke, Marten, Ruby, Dada, Lubna, Baalbaki, Rima, Lopez, Brandon, Lamkaddam, Houssni, Manninen, Hanna E., Amorim, António, Ataei, Farnoush, Bogert, Pia, Brasseur, Zoé, Caudillo, Lucı́a, De Menezes, Louis-Philippe, Duplissy, Jonathan, Ekman, Annica M. L., Finkenzeller, Henning, Gonzalez Carracedo, Loı̈c, Granzin, Manuel, Guida, Roberto, Heinritzi, Martin, Hofbauer, Victoria, Höhler, Kristina, Krechmer, Jordan E., Kürten, Andreas, Lehtipalo, Katrianne, Mahfouz, Naser G. A., Makhmutov, Vladimir, Massabò, Dario, Mathot, Serge, Mauldin, Roy L., Mentler, Bernhard, Müller, Tatjana, Onnela, Antti, Philippov, Maxim, Piedehierro, Ana A., Pozzer, Andrea, Ranjithkumar, Ananth, Schervish, Meredith, Simon, Mario, Stozhkov, Yuri, Tomé, António, Umo, Nsikanabasi Silas, Vogel, Franziska, Wagner, Robert, Wang, Dongyu S., Weber, Stefan K., Welti, André, Wu, Yusheng, Zauner-Wieczorek, Marcel, Sipilä, Mikko, Winkler, Paul M., Hansel, Armin, Baltensperger, Urs, Kulmala, Markku, Flagan, Richard C., Curtius, Joachim, Volkamer, Rainer, Riipinen, Ilona, Gordon, Hamish, Lelieveld, Jos, El-Haddad, Imad, Worsnop, Douglas R., Christoudias, Theodoros, Kirkby, Jasper, Möhler, Ottmar, and Donahue, Neil M.

45. Iodine oxoacids enhance nucleation of sulfuric acid particles in the atmosphere.

Author

He XC, Simon M, Iyer S, Xie HB, Rörup B, Shen J, Finkenzeller H, Stolzenburg D, Zhang R, Baccarini A, Tham YJ, Wang M, Amanatidis S, Piedehierro AA, Amorim A, Baalbaki R, Brasseur Z, Caudillo L, Chu B, Dada L, Duplissy J, El Haddad I, Flagan RC, Granzin M, Hansel A, Heinritzi M, Hofbauer V, Jokinen T, Kemppainen D, Kong W, Krechmer J, Kürten A, Lamkaddam H, Lopez B, Ma F, Mahfouz NGA, Makhmutov V, Manninen HE, Marie G, Marten R, Massabò D, Mauldin RL, Mentler B, Onnela A, Petäjä T, Pfeifer J, Philippov M, Ranjithkumar A, Rissanen MP, Schobesberger S, Scholz W, Schulze B, Surdu M, Thakur RC, Tomé A, Wagner AC, Wang D, Wang Y, Weber SK, Welti A, Winkler PM, Zauner-Wieczorek M, Baltensperger U, Curtius J, Kurtén T, Worsnop DR, Volkamer R, Lehtipalo K, Kirkby J, Donahue NM, Sipilä M, and Kulmala M

Abstract

The main nucleating vapor in the atmosphere is thought to be sulfuric acid (H 2 SO 4 ), stabilized by ammonia (NH 3 ). However, in marine and polar regions, NH 3 is generally low, and H 2 SO 4 is frequently found together with iodine oxoacids [HIO x , i.e., iodic acid (HIO 3 ) and iodous acid (HIO 2 )]. In experiments performed with the CERN CLOUD (Cosmics Leaving OUtdoor Droplets) chamber, we investigated the interplay of H 2 SO 4 and HIO x during atmospheric particle nucleation. We found that HIO x greatly enhances H 2 SO 4 (-NH 3 ) nucleation through two different interactions. First, HIO 3 strongly binds with H 2 SO 4 in charged clusters so they drive particle nucleation synergistically. Second, HIO 2 substitutes for NH 3 , forming strongly bound H 2 SO 4 -HIO 2 acid-base pairs in molecular clusters. Global observations imply that HIO x is enhancing H 2 SO 4 (-NH 3 ) nucleation rates 10- to 10,000-fold in marine and polar regions.

Published
2023
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46. Role of iodine oxoacids in atmospheric aerosol nucleation.

Author

He XC, Tham YJ, Dada L, Wang M, Finkenzeller H, Stolzenburg D, Iyer S, Simon M, Kürten A, Shen J, Rörup B, Rissanen M, Schobesberger S, Baalbaki R, Wang DS, Koenig TK, Jokinen T, Sarnela N, Beck LJ, Almeida J, Amanatidis S, Amorim A, Ataei F, Baccarini A, Bertozzi B, Bianchi F, Brilke S, Caudillo L, Chen D, Chiu R, Chu B, Dias A, Ding A, Dommen J, Duplissy J, El Haddad I, Gonzalez Carracedo L, Granzin M, Hansel A, Heinritzi M, Hofbauer V, Junninen H, Kangasluoma J, Kemppainen D, Kim C, Kong W, Krechmer JE, Kvashin A, Laitinen T, Lamkaddam H, Lee CP, Lehtipalo K, Leiminger M, Li Z, Makhmutov V, Manninen HE, Marie G, Marten R, Mathot S, Mauldin RL, Mentler B, Möhler O, Müller T, Nie W, Onnela A, Petäjä T, Pfeifer J, Philippov M, Ranjithkumar A, Saiz-Lopez A, Salma I, Scholz W, Schuchmann S, Schulze B, Steiner G, Stozhkov Y, Tauber C, Tomé A, Thakur RC, Väisänen O, Vazquez-Pufleau M, Wagner AC, Wang Y, Weber SK, Winkler PM, Wu Y, Xiao M, Yan C, Ye Q, Ylisirniö A, Zauner-Wieczorek M, Zha Q, Zhou P, Flagan RC, Curtius J, Baltensperger U, Kulmala M, Kerminen VM, Kurtén T, Donahue NM, Volkamer R, Kirkby J, Worsnop DR, and Sipilä M

Abstract

Iodic acid (HIO 3 ) is known to form aerosol particles in coastal marine regions, but predicted nucleation and growth rates are lacking. Using the CERN CLOUD (Cosmics Leaving Outdoor Droplets) chamber, we find that the nucleation rates of HIO 3 particles are rapid, even exceeding sulfuric acid-ammonia rates under similar conditions. We also find that ion-induced nucleation involves IO 3 - and the sequential addition of HIO 3 and that it proceeds at the kinetic limit below +10°C. In contrast, neutral nucleation involves the repeated sequential addition of iodous acid (HIO 2 ) followed by HIO 3 , showing that HIO 2 plays a key stabilizing role. Freshly formed particles are composed almost entirely of HIO 3 , which drives rapid particle growth at the kinetic limit. Our measurements indicate that iodine oxoacid particle formation can compete with sulfuric acid in pristine regions of the atmosphere., (Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.)

Published
2021
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