Pollution Characteristics and Source Apportionment of Atmospheric Volatile Organic Compounds in Winter in Kaifeng City

被引：0

作者：

Shi Y.-Q. ^{[1
]}

Zheng K.-Y. ^{[2
]}

Ding W.-T. ^{[2
]}

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

Chen H.-G. ^{[4
]}

Gao G. ^{[4
]}

Wang L.-L. ^{[5
]}

Wang N. ^{[5
]}

Ma S. ^{[5
]}

Zheng Y. ^{[5
]}

Xie S.-D. ^{[1
]}

机构：

[1] College of Environmental Sciences and Engineering, Peking University, Beijing

[2] 3Clear Technology Co., Ltd., Beijing

[3] Kaifeng Ecological Environment Monitoring Command and Dispatch Center, Kaifeng

[4] Kaifeng Municipal Bureau of Ecology and Environment, Kaifeng

[5] Henan Province Ecology Environmental Monitoring Center, Zhengzhou

来源：

Huanjing Kexue/Environmental Science | 2023年 / 44卷 / 04期

关键词：

Kaifeng City; secondary organic aerosol formation potential (SOAP); source apportionment; volatile organic compounds (VOCs); winter;

D O I：

10.13227/j.hjkx.202204083

中图分类号：

学科分类号：

摘要：

In order to explore the pollution characteristics and sources of atmospheric volatile organic compounds (VOCs) in winter in Kaifeng City, based on the atmospheric VOCs component data obtained from the online monitoring station of the Kaifeng Ecological and Environmental Bureau (Urban Area) from December 2021 to January 2022, the pollution characteristics of VOCs and secondary organic aerosol formation potential (SOAP) were discussed, and the sources of VOCs were analyzed by using the PMF model. The results showed that the average mass concentration of VOCs in winter in Kaifeng City was (104. 71 依48. 56) μg.m- 3 , and alkanes (37. 7%) had the highest proportion of mass concentrations, followed by that of halohydrocarbons (23. 5%), aromatics (16. 8%), OVOCs (12. 6%), alkenes (6. 9%), and alkynes (2. 6%). The averaged total SOAP contributed by VOCs was 3. 18 μg.m- 3 , of which aromatics contributed as much as 83. 8%, followed by alkanes (11. 5%). The largest anthropogenic source of VOCs in winter in Kaifeng City was solvent utilization (17. 9%), followed by fuel combustion (15. 9%), industrial halohydrocarbon emission (15. 8%), motor vehicle emission (14. 7%), organic chemical industry (14. 5%), and LPG emission (13. 3%); solvent utilization contributed 32. 2% of the total SOAP, followed by motor vehicle emission (22. 8%) and industrial halohydrocarbon emission (18. 9%). It was found that reducing VOCs emissions from solvent utilization, motor vehicle emission, and industrial halohydrocarbon emission was important to control the formation of secondary organic aerosols in winter in Kaifeng City. © 2023 Science Press. All rights reserved.

引用

页码：1933 / 1942

页数：9

共 53 条

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