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529 results on '"Lin, Ying-Hsuan"'

115. Carbon Dynamics as a Function of Soil Moisture within a Semi-Arid Furrow-Irrigated Orchard

Author

Ying, Samantha, primary, Avila, Claudia Christine E., additional, Schaefer, Michael V., additional, Duro, Alyssa M., additional, Haensel, Thomas, additional, Garniwan, Abdi, additional, Lin, Ying, additional, Nico, Peter, additional, Dubinsky, Eric, additional, Keiluweit, Marco, additional, Brodie, Eoin L., additional, Lin, Ying-Hsuan, additional, and Homyak, Peter, additional

Published
2022
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124. Contribution of Aerosol Sources to Health Impacts

Author

Contini, Daniele, Lin, Ying-Hsuan, Hänninen, Otto, Viana, Mar, Contini, Daniele, Lin, Ying-Hsuan, Hänninen, Otto, and Viana, Mar

Abstract

Atmospheric aerosol is one of the major leading environmental risk factors for human health worldwide, potentially causing several million premature deaths per year [...]

Published
2021

125. Contribution of Aerosol Sources to Health Impacts

Author

Viana, Mar [0000-0002-4073-3802], Contini, Daniele, Lin, Ying-Hsuan, Hänninen, Otto, Viana, Mar, Viana, Mar [0000-0002-4073-3802], Contini, Daniele, Lin, Ying-Hsuan, Hänninen, Otto, and Viana, Mar

Abstract

tmospheric aerosol is one of the major leading environmental risk factors for human health worldwide, potentially causing several million premature deaths per year [1,2]. Several epidemiological studies evidence associations between exposure to PM and the onset of cardiovascular and respiratory diseases [3] as well as cardiopulmonary diseases and other adverse health effects [4]. Exact mechanisms leading to PM toxicity are still not completely understood; however, it has been observed that adverse health effects of atmospheric particles depend on their size and their chemical–physical properties, which are strongly linked to their emission sources.

Published
2021

129. The F-Symbols for Transparent Haagerup-Izumi Categories with G = Z_(2n+1)

Author

Huang, Tzu-Chen, Lin, Ying-Hsuan, Huang, Tzu-Chen, and Lin, Ying-Hsuan

Abstract

The notion of a transparent fusion category is defined. For the Haagerup-Izumi fusion rings with G=Z_(2n+1) (the Z_3 case is the Haagerup H_3 fusion ring), the transparent property reduces the number of independent F-symbols from order O(n6) to O(n^2), rendering the pentagon identity practically solvable. Transparent fusion categories are constructed up to Z_(15), and the explicit F-symbols are compactly presented. The potential construction of categories for new families of fusion rings is discussed.

Published
2020

135. Chemical and Toxicological Characterization of Vaping Emission Products from Commonly Used Vape Juice Diluents

Author

Jiang, Huanhuan, primary, Ahmed, C. M. Sabbir, additional, Martin, Thomas J., additional, Canchola, Alexa, additional, Oswald, Iain W. H., additional, Garcia, Jose Andres, additional, Chen, Jin Y., additional, Koby, Kevin A., additional, Buchanan, Anthony J., additional, Zhao, Zixu, additional, Zhang, Haofei, additional, Chen, Kunpeng, additional, and Lin, Ying-Hsuan, additional

Published
2020
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146. Assessing the impact of anthropogenic pollution on isoprene-derived secondary organic aerosol formation in PM2.5 collected from the Birmingham, Alabama, ground site during the 2013 Southern Oxidant and Aerosol Study

Author

Guo, Hongyu, Rattanavaraha, Weruka, Stone, Elizabeth A., Offenberg, John H., Zhang, Zhenfa, Gold, Avram, Surratt, Jason D., Chu, Kevin, Riva, Matthieu, Lin, Ying-Hsuan, Baumann, Karsten, Shaw, Stephanie L., Budisulistiorini, Sri Hapsari, Edgerton, Eric S., King, Laura, Weber, Rodney J., Neff, Miranda E., and Earth Observatory of Singapore

Subjects
Climate Action, Anthropogenic source, Aerosol formation, Meteorology & Atmospheric Sciences, Astronomical and Space Sciences, Atmospheric Sciences
Abstract

In the southeastern US, substantial emissions of isoprene from deciduous trees undergo atmospheric oxidation to form secondary organic aerosol (SOA) that contributes to fine particulate matter (PM2.5). Laboratory studies have revealed that anthropogenic pollutants, such as sulfur dioxide (SO2), oxides of nitrogen (NOx), and aerosol acidity, can enhance SOA formation from the hydroxyl radical (OH)-initiated oxidation of isoprene; however, the mechanisms by which specific pollutants enhance isoprene SOA in ambient PM2.5 remain unclear. As one aspect of an investigation to examine how anthropogenic pollutants influence isoprene-derived SOA formation, high-volume PM2.5 filter samples were collected at the Birmingham, Alabama (BHM), ground site during the 2013 Southern Oxidant and Aerosol Study (SOAS). Sample extracts were analyzed by gas chromatography–electron ionization-mass spectrometry (GC/EI-MS) with prior trimethylsilylation and ultra performance liquid chromatography coupled to electrospray ionization high-resolution quadrupole time-of-flight mass spectrometry (UPLC/ESI-HR-QTOFMS) to identify known isoprene SOA tracers. Tracers quantified using both surrogate and authentic standards were compared with collocated gas- and particle-phase data as well as meteorological data provided by the Southeastern Aerosol Research and Characterization (SEARCH) network to assess the impact of anthropogenic pollution on isoprene-derived SOA formation. Results of this study reveal that isoprene-derived SOA tracers contribute a substantial mass fraction of organic matter (OM) ( ~7 to ~20 %). Isoprene-derived SOA tracers correlated with sulfate (SO42-) (r2 = 0.34, n = 117) but not with NOx. Moderate correlations between methacrylic acid epoxide and hydroxymethyl-methyl-α-lactone (together abbreviated MAE/HMML)-derived SOA tracers with nitrate radical production (P[NO3]) (r2 = 0.57, n = 40) were observed during nighttime, suggesting a potential role of the NO3 radical in forming this SOA type. However, the nighttime correlation of these tracers with nitrogen dioxide (NO2) (r2 = 0.26, n = 40) was weaker. Ozone (O3) correlated strongly with MAE/HMML-derived tracers (r2 = 0.72, n = 30) and moderately with 2-methyltetrols (r2 = 0.34, n = 15) during daytime only, suggesting that a fraction of SOA formation could occur from isoprene ozonolysis in urban areas. No correlation was observed between aerosol pH and isoprene-derived SOA. Lack of correlation between aerosol acidity and isoprene-derived SOA is consistent with the observation that acidity is not a limiting factor for isoprene SOA formation at the BHM site as aerosols were acidic enough to promote multiphase chemistry of isoprene-derived epoxides throughout the duration of the study. All in all, these results confirm previous studies suggesting that anthropogenic pollutants enhance isoprene-derived SOA formation. Published version

Published
2017

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