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Spatiotemporal variation, sources, and secondary transformation potential of volatile organic compounds in Xi'an, China
Song, Mengdi1; Li, Xin1; Yang, Suding1; Yu, Xuena1; Zhou, Songxiu1; Yang, Yiming1; Chen, Shiyi1; Dong, Huabin1; Liao, Keren1; Chen, Qi1; Lu, Keding1; Zhang, Ningning2; Cao, Junji2; Zeng, Limin1; Zhang, Yuanhang1
通讯作者Li, Xin(li_xin@pku.edu.cn)
2021-03-30
发表期刊ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN1680-7316
卷号21期号:6页码:4939-4958
摘要As critical precursors of ozone (O-3) and secondary organic aerosols, volatile organic compounds (VOCs) play a vital role in air quality, human health, and climate change. In this study, a campaign of comprehensive field observations and VOC grid sampling was conducted in Xi'an, China, from 20 June to 20 July 2019 to identify the spatiotemporal concentration levels, sources, and secondary transformation potential of VOCs. During the observation period, the average VOC concentrations at the Chanba (CB), Di Huan Suo (DHS), Qinling (QL), and gridded sampling sites were 27.8 +/- 8.9, 33.8 +/- 10.5, 15.5 +/- 5.8, and 29.1 +/- 8.4 ppb, respectively. Vehicle exhaust was the primary source of VOC emissions in Xi'an, and the contributions of vehicle exhaust to VOCs at the CB, DHS, and QL sites were 41.3 %, 30.6 %, and 23.6 %-41.4 %, respectively. While industrial emissions were the second-largest source of VOCs in urban areas, contributions from aging sources were high in rural areas. High potential source contribution function values primarily appeared in eastern and southern Xi'an near the sampling site, which indicates that Xi'an exhibits a strong local VOC source. Moreover, alkenes, aromatics, and oxygenated VOCs played a dominant role in secondary transformation, which is a major concern in reducing O-3 pollution in Xi'an.
DOI10.5194/acp-21-4939-2021
收录类别SCI ; SCI
语种英语
资助项目National Natural Science Foundation of China[91844301] ; National Key R&D Program of China[2017YFC0209400]
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
项目资助者National Natural Science Foundation of China ; National Key R&D Program of China
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号WOS:000636064900003
出版者COPERNICUS GESELLSCHAFT MBH
引用统计
被引频次:46[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/16174
专题粉尘与环境研究室
通讯作者Li, Xin
作者单位1.Peking Univ, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100871, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China
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Song, Mengdi,Li, Xin,Yang, Suding,et al. Spatiotemporal variation, sources, and secondary transformation potential of volatile organic compounds in Xi'an, China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2021,21(6):4939-4958.
APA Song, Mengdi.,Li, Xin.,Yang, Suding.,Yu, Xuena.,Zhou, Songxiu.,...&Zhang, Yuanhang.(2021).Spatiotemporal variation, sources, and secondary transformation potential of volatile organic compounds in Xi'an, China.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(6),4939-4958.
MLA Song, Mengdi,et al."Spatiotemporal variation, sources, and secondary transformation potential of volatile organic compounds in Xi'an, China".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.6(2021):4939-4958.
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