<p>Worsening summertime ozone pollution in the Guanzhong Basin, China from 2014 to 2018: Impacts of synoptic conditions and anthropogenic emissions</p>

doi:10.1016/j.atmosenv.2022.118974

IEECAS OpenIR > 粉尘与环境研究室

	Worsening summertime ozone pollution in the Guanzhong Basin, China from 2014 to 2018: Impacts of synoptic conditions and anthropogenic emissions
	Bei, Naifang 1; Liang, Jiayi 1; Li, Xia 2; Wang, Ruonan 2
通讯作者	Bei, Naifang(bei.naifang@mail.xjtu.edu.cn)
	2022-04-01
发表期刊	ATMOSPHERIC ENVIRONMENT
ISSN	1352-2310
卷号	274 页码:11
摘要	The ozone (O-3) pollution in the Guanzhong Basin (GZB), China has progressively deteriorated from 2014 to 2018, with the summertime near-surface maximum daily 8 h average (MDA8) O-3 concentration ([O-3]) increasing from about 104 to 141 mu g m(-3), although the emission mitigation strategies have been carried out since 2013. However, it remains elusive about whether anthropogenic emissions or meteorological conditions contribute to the worsening of O-3 pollution in the GZB. A subjective classification method is first used to classify the synoptic patterns influencing the GZB into favorable and unfavorable conditions. The unfavorable synoptic conditions generally correspond to less precipitation, more solar radiation and higher near-surface temperature, which facilitate formation of the O-3 pollution, and it is opposite for the favorable conditions. The increasing trend of MDA8 [O-3] is correlated well with the increase in occurrence of unfavorable synoptic conditions and near-surface temperature from 2014 to 2018. Sensitivity experiments using the WRF-Chem model reveals that the emission mitigation strategies from 2014 to 2018 enhance MDA8 [O-3] by 19.2% on average in the GZB, which counts about 54% of the observed MDA8 O-3 increasing trend. Particularly, the particulate matter decrease due to the emission mitigation contributes about 11.5% of the observed trend, caused by the reduced HO2 heterogeneous uptake and enhanced photolysis. The rest 46% of the observed MDA8 O-3 increasing trend can be mainly contributed by the variation of occurrence days of unfavorable synoptic situations.
关键词	Ozone Synoptic conditions Emission mitigation Guanzhong Basin
DOI	10.1016/j.atmosenv.2022.118974
关键词[WOS]	WINTERTIME AIR-POLLUTION ; MEXICO-CITY ; METEOROLOGICAL INFLUENCES ; MOUNT TAI ; SEA-LAND ; MODEL ; SIMULATIONS ; PHOTOCHEMISTRY ; CIRCULATIONS ; EPISODE
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[41975175] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB40030200] ; Key Research and Development Program of Shaanxi[2018ZDCXL-SF-02-01] ; Fundamental Research Funds for the Central Universities of China
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
项目资助者	National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Key Research and Development Program of Shaanxi ; Fundamental Research Funds for the Central Universities of China
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000788313000002
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：6[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/361006/17693
专题	粉尘与环境研究室
通讯作者	Bei, Naifang
作者单位	1.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Sci & Technol, SKLLQG, Xian, Peoples R China
推荐引用方式 GB/T 7714	Bei, Naifang,Liang, Jiayi,Li, Xia,et al. Worsening summertime ozone pollution in the Guanzhong Basin, China from 2014 to 2018: Impacts of synoptic conditions and anthropogenic emissions [J]. ATMOSPHERIC ENVIRONMENT,2022,274:11.
APA	Bei, Naifang,Liang, Jiayi,Li, Xia,&Wang, Ruonan.(2022). Worsening summertime ozone pollution in the Guanzhong Basin, China from 2014 to 2018: Impacts of synoptic conditions and anthropogenic emissions .ATMOSPHERIC ENVIRONMENT,274,11.
MLA	Bei, Naifang,et al." Worsening summertime ozone pollution in the Guanzhong Basin, China from 2014 to 2018: Impacts of synoptic conditions and anthropogenic emissions ".ATMOSPHERIC ENVIRONMENT 274(2022):11.