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Source attribution of particulate matter pollution over North China with the adjoint method
Journal article   Open access   Peer reviewed

Source attribution of particulate matter pollution over North China with the adjoint method

Lin Zhang, Licheng Liu, Yuanhong Zhao, Sunling Gong, Xiaoye Zhang, Daven K Henze, Shannon L Capps, Tzung-May Fu, Qiang Zhang and Yuxuan Wang
Environmental research letters, v 10(8), p84011
12 Aug 2015
url
https://doi.org/10.1088/1748-9326/10/8/084011View
Published, Version of Record (VoR) Open

Abstract

source attribution particulate matter pollution in China regional transport adjoint PM2.5
We quantify the source contributions to surface PM2.5 (fine particulate matter) pollution over North China from January 2013 to 2015 using the GEOS-Chem chemical transport model and its adjoint with improved model horizontal resolution (1 4° × 5 16°) and aqueous-phase chemistry for sulfate production. The adjoint method attributes the PM2.5 pollution to emissions from different source sectors and chemical species at the model resolution. Wintertime surface PM2.5 over Beijing is contributed by emissions of organic carbon (27% of the total source contribution), anthropogenic fine dust (27%), and SO2 (14%), which are mainly from residential and industrial sources, followed by NH3 (13%) primarily from agricultural activities. About half of the Beijing pollution originates from sources outside of the city municipality. Adjoint analyses for other cities in North China all show significant regional pollution transport, supporting a joint regional control policy for effectively mitigating the PM2.5 air pollution.

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#13 Climate Action
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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Environmental Sciences
Meteorology & Atmospheric Sciences
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