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2. Enhanced daytime secondary aerosol formation driven by gas-particle partitioning in downwind urban plumes

Author

Cai, Mingfu, primary, Ye, Chenshuo, additional, Yuan, Bin, additional, Huang, Shan, additional, Zheng, E, additional, Yang, Suxia, additional, Wang, Zelong, additional, Lin, Yi, additional, Li, Tiange, additional, Hu, Weiwei, additional, Chen, Wei, additional, Song, Qicong, additional, Li, Wei, additional, Peng, Yuwen, additional, Liang, Baolin, additional, Sun, Qibin, additional, Zhao, Jun, additional, Chen, Duohong, additional, Sun, Jiaren, additional, Yang, Zhiyong, additional, and Shao, Min, additional

Published
2024
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3. Supplementary material to "Enhanced daytime secondary aerosol formation driven by gas-particle partitioning in downwind urban plumes"

Author

Cai, Mingfu, primary, Ye, Chenshuo, additional, Yuan, Bin, additional, Huang, Shan, additional, Zheng, E, additional, Yang, Suxia, additional, Wang, Zelong, additional, Lin, Yi, additional, Li, Tiange, additional, Hu, Weiwei, additional, Chen, Wei, additional, Song, Qicong, additional, Li, Wei, additional, Peng, Yuwen, additional, Liang, Baolin, additional, Sun, Qibin, additional, Zhao, Jun, additional, Chen, Duohong, additional, Sun, Jiaren, additional, Yang, Zhiyong, additional, and Shao, Min, additional

Published
2024
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4. Sources, Size-Resolved Deposition in the Human Respiratory Tract and Health Risks of Submicron Black Carbon in Urban Atmosphere in Pearl River Delta, China

Author

Liu, Yuan, primary, Wu, Lina, additional, Huang, Shan, additional, Song, Qicong, additional, Hu, Weiwei, additional, Chen, Wei, additional, Wu, Zhijun, additional, Man, Ruiqi, additional, He, Yao, additional, Li, Wei, additional, Peng, Yuwen, additional, Liu, Junwen, additional, Song, Wei, additional, Ma, Nan, additional, Yuan, Bin, additional, Wang, Xinming, additional, and Shao, Min, additional

Published
2023
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6. Measurement report: Distinct size dependence and diurnal variation in organic aerosol hygroscopicity, volatility, and cloud condensation nuclei activity at a rural site in the Pearl River Delta (PRD) region, China

Author

Cai, Mingfu, primary, Huang, Shan, additional, Liang, Baoling, additional, Sun, Qibin, additional, Liu, Li, additional, Yuan, Bin, additional, Shao, Min, additional, Hu, Weiwei, additional, Chen, Wei, additional, Song, Qicong, additional, Li, Wei, additional, Peng, Yuwen, additional, Wang, Zelong, additional, Chen, Duohong, additional, Tan, Haobo, additional, Xu, Hanbin, additional, Li, Fei, additional, Deng, Xuejiao, additional, Deng, Tao, additional, Sun, Jiaren, additional, and Zhao, Jun, additional

Published
2022
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8. Supplementary material to "Measurement Report: Distinct size dependence and diurnal variation of OA hygroscopicity, volatility, and CCN activity at a rural site in the Pearl River Delta (PRD) region, China"

Author

Cai, Mingfu, primary, Huang, Shan, additional, Liang, Baoling, additional, Sun, Qibin, additional, Liu, Li, additional, Yuan, Bin, additional, Shao, Min, additional, Hu, Weiwei, additional, Chen, Wei, additional, Song, Qicong, additional, Li, Wei, additional, Peng, Yuwen, additional, Wang, Zelong, additional, Chen, Duohong, additional, Tan, Haobo, additional, Xu, Hanbin, additional, Li, Fei, additional, Deng, Xuejiao, additional, Deng, Tao, additional, Sun, Jiaren, additional, and Zhao, Jun, additional

Published
2022
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9. Measurement Report: Distinct size dependence and diurnal variation of OA hygroscopicity, volatility, and CCN activity at a rural site in the Pearl River Delta (PRD) region, China

Author

Cai, Mingfu, primary, Huang, Shan, additional, Liang, Baoling, additional, Sun, Qibin, additional, Liu, Li, additional, Yuan, Bin, additional, Shao, Min, additional, Hu, Weiwei, additional, Chen, Wei, additional, Song, Qicong, additional, Li, Wei, additional, Peng, Yuwen, additional, Wang, Zelong, additional, Chen, Duohong, additional, Tan, Haobo, additional, Xu, Hanbin, additional, Li, Fei, additional, Deng, Xuejiao, additional, Deng, Tao, additional, Sun, Jiaren, additional, and Zhao, Jun, additional

Published
2022
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11. Real‐Time Characterization of Aerosol Compositions, Sources, and Aging Processes in Guangzhou During PRIDE‐GBA 2018 Campaign

Author

Chen, Wei, primary, Ye, Yuqing, additional, Hu, Weiwei, additional, Zhou, Huaishan, additional, Pan, Tianle, additional, Wang, Yingkun, additional, Song, Wei, additional, Song, Qicong, additional, Ye, Chenshuo, additional, Wang, Chaomin, additional, Wang, Baolin, additional, Huang, Shan, additional, Yuan, Bin, additional, Zhu, Ming, additional, Lian, Xiufeng, additional, Zhang, Guohua, additional, Bi, Xinhui, additional, Jiang, Fan, additional, Liu, Junwen, additional, Canonaco, Francesco, additional, Prevot, Andre S. H., additional, Shao, Min, additional, and Wang, Xinming, additional

Published
2021
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12. Contrasting effects of secondary organic aerosol formations on organic aerosol hygroscopicity

Author

Kuang, Ye, primary, Huang, Shan, additional, Xue, Biao, additional, Luo, Biao, additional, Song, Qicong, additional, Chen, Wei, additional, Hu, Weiwei, additional, Li, Wei, additional, Zhao, Pusheng, additional, Cai, Mingfu, additional, Peng, Yuwen, additional, Qi, Jipeng, additional, Li, Tiange, additional, Wang, Sihang, additional, Chen, Duohong, additional, Yue, Dingli, additional, Yuan, Bin, additional, and Shao, Min, additional

Published
2021
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13. Supplementary material to "Contrasting effects of secondary organic aerosol formations on organic aerosol hygroscopicity"

Author

Kuang, Ye, primary, Huang, Shan, additional, Xue, Biao, additional, Luo, Biao, additional, Song, Qicong, additional, Chen, Wei, additional, Hu, Weiwei, additional, Li, Wei, additional, Zhao, Pusheng, additional, Cai, Mingfu, additional, Peng, Yuwen, additional, Qi, Jipeng, additional, Li, Tiange, additional, Chen, Duohong, additional, Yue, Dingli, additional, Yuan, Bin, additional, and Shao, Min, additional

Published
2021
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15. Chemical composition and sources of amines in PM2.5 in an urban site of PRD, China.

Author

Huang, Shan, Song, Qicong, Hu, Weiwei, Yuan, Bin, Liu, Junwen, Jiang, Bin, Li, Wei, Wu, Caihong, Jiang, Fan, Chen, Wei, Wang, Xinming, and Shao, Min

Subjects
*AMINES, *PARTICULATE nitrate, *NITRATES, *DIMETHYLAMINE, *HUMIDITY
Abstract

Atmospheric amines have attracted increasing attention due to their significant impact on new particle formation, particle hygroscopicity and particle optical properties. In this study, four low-molecule-weight amines were detected from PM 2.5 filter samples collected at an urban site of Pearl River Delta (PRD) region of China in 2018 autumn. During the campaign, the mass concentrations of ambient particulate methylamine (MA, CH 3 NH 2), dimethylamine (DMA, (CH 3) 2 NH), trimethylamine (TMA, (CH 3) 3 N), and diethylamine (DEA, (C 2 H 5) 2 NH) were quantified at daily or 12-h resolution using an optimized Ion Chromatograph (IC) method. The total measured amine concentration was 297 ± 209 ng/m3, which can account for 0.76 ± 0.33% of PM 2.5 mass concentrations. The particulate amines in PRD urban area were dominated by MA (243 ± 179 ng/m3), accounting for over 80% of total amines, then followed by DMA (49 ± 30 ng/m3, 16.5%), TMA (4 ± 2 ng/m3) and DEA (1 ± 1 ng/m3). Based on the correlation analysis, MA and DMA mainly presented as nitrate and sulfate salts. We speculate the amines tend to react with gas-phase HNO 3 or particle-phase nitrate to form particulate amine salts via local process in Guangzhou. As the relative humidity (RH) increased, enhanced partitioning of amine towards the particle phase was observed. Using approach of multiple linear regression, 71% of the particulate amines in PRD urban site could be explained by acid-base process and the rest by primary emissions from combustion sources (29%). • Particulate amines in urban PRD were quantified using an optimized IC method. • Methylamine was the most abundant amine, followed by dimethylamine. • Methylamine and dimethylamine mainly presented as nitrate and sulfate salts. • Enhanced RH facilitated the partitioning of amine towards particle phase. • Acid-base process dominated the amine formation, the left by combustion source. [ABSTRACT FROM AUTHOR]

Published
2022
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