Source Apportionment of Air Pollutants for a Typical Pollution Event in Zhaoqing

被引：1

作者：

Chang S.-C. ^{[1
]}

Liao C.-H. ^{[1
]}

Zeng W.-T. ^{[1
]}

Yang L.-L. ^{[1
]}

Yu S.-C. ^{[2
]}

Chen X. ^{[2
]}

Zheng J.-P. ^{[3
]}

机构：

[1] Guangdong Provincial Environmental Protection Key Laboratory of Atmospheric Environment Management and Policy Simulation, Guangdong Provincial Academy of Environmental Science, Guangzhou

[2] Key Laboratory of Environment Remediation and Econlogical Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou

[3] Zhaoqing Environmental Protection Monitoring Station, Zhaoqing

来源：

Huanjing Kexue/Environmental Science | 2019年 / 40卷 / 10期

关键词：

CMAQ-ISAM model; Fine particulate matters; Hybrid receptor model; Source apportionment; Zhaoqing;

D O I：

10.13227/j.hjkx.201903237

中图分类号：

学科分类号：

摘要：

Based on observational data for pollutants and meteorology, this study analyzed the pollution episode that occurred during Dec 17th to 23th in 2018 in Zhaoqing, Guangdong Province, China. Using the source apportionment model CMAQ-ISAM and the hybrid receptor model, the regional contributions to air pollution were examined. The results showed that low-pressure conditions had an adverse effect on the diffusion of pollutants during this pollution episode in Zhaoqing. Prior to the pollution episode, pollutants were mainly derived from Zhaoqing and Qingyuan, accounting for 19.2% and 10.7% of pollutants, respectively. As well as pollutants from Guangdong Province, long-distance transport of pollutants from Jiangxi, Hunan, Hubei, and Shaanxi accounted for approximately 64.5% of the total during the non-pollution period. During the polluted episode, major cities in Pearl River Delta and the eastern part of Guangdong Province contributed more pollutants as a surface high-pressure field moved southward. Zhaoqing, Foshan, Dongguan, Guangzhou, and Huizhou contributed 25.5%, 14.8%, 9.8%, 9.5%, and 5.3% of the pollutants, respectively. Cities in the eastern part of Guangdong Province including Heyuan, Meizhou, Shanwei, Jieyang, Shantou, and Chaozhou contributed 13.7% of the total pollutants. In addition, pollutants from Fujian, Jiangxi, and the Yangtze River Delta accounted for approximately 32.9%. Furthermore, pollutants transported under marine influences were one of the main causes of this pollution episode in Zhaoqing. © 2019, Science Press. All right reserved.

引用

页码：4310 / 4318

页数：8

共 35 条

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