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Common source areas of air pollution vary with haze intensity in the Yangtze River Delta, China

Chen, Xue and Yu, Shaocai and Wang, Liqiang and Li, Zhen and Zhang, Yibo and Li, Mengying and Mehmood, Khalid and Liu, Weiping and Li, Pengfei and Lichtfouse, Eric and Rosenfeld, Daniel and Seinfeld, John H. (2020) Common source areas of air pollution vary with haze intensity in the Yangtze River Delta, China. Environmental Chemistry Letters, 18 (3). pp. 957-965. ISSN 1610-3653. https://resolver.caltech.edu/CaltechAUTHORS:20200313-132837414

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Abstract

Rapid development of China’s industrialization and urbanization in the past decades has highly decreased air quality. For instance, the Yangtze River Delta, a major economic area in China, is incurring strong haze pollution, yet precise pollution sources are unknown. Here, we hypothesized that sources of haze pollution might be the same in nearby cities within the region. To test this hypothesis, we studied sources in four major cities, Hefei, Hangzhou, Nanjing, and Shanghai, during the strong haze period from November 28 to December 10, 2013. This period was divided into four periods according to air PM_(2.5) concentrations (PM: particulate matter): slight haze, moderate haze, heavy haze, and severe haze periods. Common pollution source areas were identified for the first time by backward trajectories and concentration weighted trajectory maps of PM_(2.5). Results show that all cities contain air masses transported from the northwestern and northeastern regions. Emissions came mainly from northern and central China during the moderate haze period and from adjacent provinces during the severe haze period. During the heavy haze period, common sources were mainly located in the Anhui province, while during the severe haze period, common sources were mainly located in the northeastern part of the Anhui province and the western part of the Jiangsu province. Overall, our findings show that areas of pollution sources vary with the intensity of haze pollution. Our mapping method should thus provide more precise information to control air pollution at the regional scale.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1007/s10311-020-00976-0DOIArticle
ORCID:
AuthorORCID
Yu, Shaocai0000-0001-9718-8246
Liu, Weiping0000-0002-1173-892X
Lichtfouse, Eric0000-0002-8535-8073
Rosenfeld, Daniel0000-0002-0784-7656
Seinfeld, John H.0000-0003-1344-4068
Additional Information:© 2020 Springer Nature. Received 26 October 2019. Accepted 8 February 2020. Published 13 March 2020. This work was partially supported by the Department of Science and Technology of China (No. 2016YFC0202702, 2018YFC0213506, and 2018YFC0213503), National Research Program for Key Issues in Air Pollution Control in China (No. DQGG0107), and National Natural Science Foundation of China (No. 21577126 and 41561144004). Part of this work was also supported by the “Zhejiang 1000 Talent Plan” and Research Center for Air Pollution and Health in Zhejiang University. Pengfei Li is supported by Initiation Fund for Introducing Talents of Hebei Agricultural University (412201904).
Funders:
Funding AgencyGrant Number
Department of Science and Technology (China)2016YFC0202702
Department of Science and Technology (China)2018YFC0213506
Department of Science and Technology (China)2018YFC0213503
National Research Program for Key Issues in Air Pollution Control in ChinaDQGG0107
National Natural Science Foundation of China21577126
National Natural Science Foundation of China41561144004
Zhejiang 1000 Talent PlanUNSPECIFIED
Zhejiang UniversityUNSPECIFIED
Hebei Agricultural University412201904
Issue or Number:3
Record Number:CaltechAUTHORS:20200313-132837414
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200313-132837414
Official Citation:Chen, X., Yu, S., Wang, L. et al. Common source areas of air pollution vary with haze intensity in the Yangtze River Delta, China. Environ Chem Lett 18, 957–965 (2020). https://doi.org/10.1007/s10311-020-00976-0
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:101906
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:16 Mar 2020 14:31
Last Modified:29 Apr 2020 16:06

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