气候变化领域集成服务门户(CCPortal): Volatile organic compounds and ozone air pollution in an oil production region in northern China

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DOI	10.5194/acp-20-7069-2020
	Volatile organic compounds and ozone air pollution in an oil production region in northern China
	Chen T.; Xue L.; Zheng P.; Zhang Y.; Liu Y.; Sun J.; Han G.; Li H.; Zhang X.; Li Y.; Li H.; Dong C.; Xu F.; Zhang Q.; Wang W.
发表日期	2020
ISSN	16807316
起始页码	7069
结束页码	7086
卷号	20 期号:11
英文摘要	Oil and natural gas (O&NG) exploration presents a significant source of atmospheric volatile organic compounds (VOCs), which are central players of tropospheric chemistry and contribute to formations of ozone (O3) and secondary organic aerosols. The impacts of O&NG extraction on regional air quality have been investigated in recent years in North America, but have long been overlooked in China. To assess the impacts of O&NG exploration on tropospheric O3 and regional air quality in China, intensive field observations were conducted during February-March and June-July 2017 in the Yellow River delta, an oil extraction region in northern China. Very high concentrations of ambient VOCs were observed at a rural site, with the highest alkane mixing ratios reaching 2498 ppbv. High-O3 episodes were not encountered during wintertime but were frequently observed in summer. The emission profiles of VOCs from the oil fields were directly measured for the first time in China. The chemical budgets of ROx radicals and O3 were dissected with a detailed chemical box model constrained by in situ observations. The highly abundant VOCs facilitated strong atmospheric oxidation capacity and O3 formation in the region. Oxygenated VOCs (OVOCs) played an essential role in the ROx primary production, OH loss, and radical recycling. Photolysis of OVOCs, O3, and HONO as well as ozonolysis reactions of unsaturated VOCs were major primary sources of ROx . NOx was the limiting factor of radical recycling and O3 formation. This study underlines the important impacts of O&NG extraction on atmospheric chemistry and regional air quality in China. © 2019 Institute of Electrical and Electronics Engineers Inc.. All rights reserved.
关键词	air quality atmospheric pollution hydrocarbon exploration natural gas oil production ozone volatile organic compound China
语种	英语
来源机构	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/131974
推荐引用方式 GB/T 7714	Chen T.,Xue L.,Zheng P.,et al. Volatile organic compounds and ozone air pollution in an oil production region in northern China[J]. Atmospheric Chemistry and Physics,2020,20(11).
APA	Chen T..,Xue L..,Zheng P..,Zhang Y..,Liu Y..,...&Wang W..(2020).Volatile organic compounds and ozone air pollution in an oil production region in northern China.,20(11).
MLA	Chen T.,et al."Volatile organic compounds and ozone air pollution in an oil production region in northern China".20.11(2020).