This title appears in the Scientific Report :
2021
Please use the identifier:
http://hdl.handle.net/2128/28357 in citations.
Please use the identifier: http://dx.doi.org/10.1029/2020GL091351 in citations.
Uptake of Water‐soluble Gas‐phase Oxidation Products Drives Organic Particulate Pollution in Beijing
Uptake of Water‐soluble Gas‐phase Oxidation Products Drives Organic Particulate Pollution in Beijing
Despite the recent decrease in pollution events in Chinese urban areas, the World Health Organization air quality guideline values are still exceeded. Observations from monitoring networks show a stronger decrease of organic aerosol directly emitted to the atmosphere relative to secondary organic ae...
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Personal Name(s): | Gkatzelis, Georgios (Corresponding author) |
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Papanastasiou, Dimitrios K. / Karydis, Vlassis A. / Hohaus, Thorsten / Liu, Ying / Schmitt, Sebastian H. / Schlag, Patrick / Fuchs, Hendrik / Novelli, Anna / Chen, Qi / Cheng, Xi / Broch, Sebastian / Dong, Huabin / Holland, Frank / Li, Xin / Liu, Yuhan / Ma, Xuefei / Reimer, David / Rohrer, Franz / Shao, Min / Tan, Zhaofeng / Taraborrelli, Domenico / Tillmann, Ralf / Wang, Haichao / Wang, Yu / Wu, Yusheng / Wu, Zhijun / Zeng, Limin / Zheng, Jun / Hu, Min / Lu, Keding / Hofzumahaus, Andreas / Zhang, Yuanhang / Wahner, Andreas / Kiendler-Scharr, Astrid | |
Contributing Institute: |
Troposphäre; IEK-8 |
Published in: | Geophysical research letters, 48 (2021) 8, S. e2020GL091351 |
Imprint: |
Hoboken, NJ
Wiley
2021
|
DOI: |
10.1029/2020GL091351 |
Document Type: |
Journal Article |
Research Program: |
Air Quality |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1029/2020GL091351 in citations.
Despite the recent decrease in pollution events in Chinese urban areas, the World Health Organization air quality guideline values are still exceeded. Observations from monitoring networks show a stronger decrease of organic aerosol directly emitted to the atmosphere relative to secondary organic aerosol (SOA) generated from oxidation processes. Here, the uptake of water-soluble gas-phase oxidation products is reported as a major SOA contribution to particulate pollution in Beijing, triggered by the increase of aerosol liquid water. In pollution episodes, this pathway is enough to explain the increase in SOA mass, with formaldehyde, acetaldehyde, glycolaldehyde, formic acid, and acetic acid alone explaining 15%–25% of the SOA increase. Future mitigation strategies to reduce non-methane volatile organic compound emissions should be considered to reduce organic particulate pollution in China. |