Are the temporal variation and spatial variation of ambient SO2 concentrations determined by different factors?

doi:10.1016/j.jclepro.2017.08.215

	Are the temporal variation and spatial variation of ambient SO2 concentrations determined by different factors?
	Yang, Xue 1,2; Wang, Shaojian 3; Zhang, Wenzhong 1,2; Yu, Jianhui 1,2
刊名	JOURNAL OF CLEANER PRODUCTION
	2017-11-20
卷号	167 页码:824-836
关键词	SO2 concentrations Temporal variation factors Spatial variation factors Panel data models China
ISSN号	0959-6526
DOI	10.1016/j.jclepro.2017.08.215
通讯作者	Wang, Shaojian(1987wangshaojian@163.com) ; Yu, Jianhui(yujh@igsnrr.ac.cn)
英文摘要	Although previous studies have used panel data to identify factors influencing atmospheric contaminations, they generally trend to ignore the distinction between temporal variation factors and spatial variation factors of the pollution. In this study, a systematic investigation on the difference of the determinants driving the two types of variations of air pollution is addressed. We employed panel data models with both constant and varying coefficients to examine the impacts of socioeconomic factors (namely, population density, per capita GDP, and secondary industry share) and meteorological indicators (temperature, precipitation, and wind speed) on the spatial and temporal variation of ambient SO2 concentrations in China, using a sample of 30 major cities during the period 1995-2016. The results show that average SO2 concentrations for the 30 cities persistently declined over the 22 years studied, decreasing from 92 mu g/m(3) to 23 mu g/m(3), and that the most polluted cities shifted from being in the southwest to being in North China during this period. In addition, the gaseous pollutant concentrations and six factors were cointegrated. The results of the constant coefficient model (R-2 = 0.734) indicate that secondary industry proportion presented a significant (p<1%) positive correlation with contamination; as such, a 1% increase in the secondary industry ratio was found to be able to cause a 0.81% increase in SO2 levels. The varying coefficient models (R-2 = 0.922 and 0.839, respectively) illustrated that the temporal (yearly) variation of SO2 concentration was more influenced by human-related factors, especially by secondary industry share; as SO2 is mainly produced and discharged in the process of industrial production. While the spatial variation of such concentration was more affected by meteorological indicators, especially by wind speed. This may be caused by the large difference in climate conditions among the studied 30 cities. (C) 2017 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[41230632] ; National Natural Science Foundation of China[41601151] ; National Natural Science Foundation of China[41301188] ; National Natural Science Foundation of China[41671166] ; Natural Science Foundation of Guangdong Province[2016A030310149]
WOS关键词	ENVIRONMENTAL KUZNETS CURVE ; PANEL-DATA ANALYSIS ; CRITERIA AIR-POLLUTANTS ; SEVERE HAZE POLLUTION ; METEOROLOGICAL CONDITIONS ; CHINESE CITIES ; CO2 EMISSIONS ; DECOMPOSITION ANALYSIS ; HETEROGENEOUS PANELS ; PM2.5 CONCENTRATIONS
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000413128100070
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/62509]
专题	中国科学院地理科学与资源研究所
通讯作者	Wang, Shaojian; Yu, Jianhui
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Reg Sustainable Dev Modeling, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Sun Yat Sen Univ, Sch Geog & Planning, Guangdong Prov Key Lab Urbanizat & Geosimulat, Guangzhou 510275, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Yang, Xue,Wang, Shaojian,Zhang, Wenzhong,et al. Are the temporal variation and spatial variation of ambient SO2 concentrations determined by different factors?[J]. JOURNAL OF CLEANER PRODUCTION,2017,167:824-836.
APA	Yang, Xue,Wang, Shaojian,Zhang, Wenzhong,&Yu, Jianhui.(2017).Are the temporal variation and spatial variation of ambient SO2 concentrations determined by different factors?.JOURNAL OF CLEANER PRODUCTION,167,824-836.
MLA	Yang, Xue,et al."Are the temporal variation and spatial variation of ambient SO2 concentrations determined by different factors?".JOURNAL OF CLEANER PRODUCTION 167(2017):824-836.