气候变化领域集成服务门户(CCPortal): Exploring the spatial effects and influencing factors of PM2.5 concentration in the Yangtze River Delta Urban Agglomerations of China

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DOI	10.1016/j.atmosenv.2021.118805
	Exploring the spatial effects and influencing factors of PM2.5 concentration in the Yangtze River Delta Urban Agglomerations of China
	He Y.; Lin K.; Liao N.; Chen Z.; Rao J.
发表日期	2022
ISSN	1352-2310
卷号	268
英文摘要	The haze pollution caused by PM2.5 is a prominent environmental pollution issue in China, which seriously affects socioeconomic development and human health. However, previous studies ignored the heterogeneity among the different categories of cities in investigating the spatial effects of PM2.5 concentration and its influencing factors at the level of urban agglomerations. Therefore, this study takes 27 cities in the Yangtze River Delta Urban Agglomerations of China as a case study to identify the key influencing factors and their direct and spatial effects on PM2.5 in different categories of cities. The results indicate that a 1% increase in population density, energy intensity, industrial pollution emission, and public transport density causes the PM2.5 concentration to rise 0.264%, 0.088%, 0.021%, and 0.085%, respectively, in the whole urban agglomerations. In addition, a 1% increase in economic development and foreign direct investment decreases the PM2.5 concentration by 0.814% and 0.019%, respectively. In the first category, the main influencing factors of PM2.5 are population density, economic development, energy intensity, industrial pollution emission, and public transport density. In the second category, the main factors are economic development, energy intensity, and public transport density. In the third category, the major factors are industrial pollution emission, public transport density, and foreign direct investment. Moreover, population density, energy intensity, and public transport density have significant spatial spillover effects on PM2.5 in the first category. The population density, economic development, energy intensity, industrial pollution emission, and foreign direct investment have significant spatial spillover effects on PM2.5 in the second category. Population density and foreign direct investment have significant spatial spillover effects on PM2.5 concentration in the third category. © 2021 Elsevier Ltd
关键词	City heterogeneity Influencing factors PM2.5 concentration Spatial effects Yangtze River Delta Urban Agglomerations
语种	英语
scopus关键词	Agglomeration; Economic and social effects; Economics; Industrial emissions; Investments; Population dynamics; Population statistics; River pollution; Rivers; City heterogeneity; Energy intensity; Influencing factor; PM 2.5; PM2.5 concentration; Public transport; Spatial effect; Urban agglomerations; Yangtze river delta; Yangtze river delta urban agglomeration; Population distribution; concentration (composition); detection method; economic development; exploration; foreign direct investment; haze; public transport; spatiotemporal analysis; article; China; city; economic development; foreign direct investment; human; particulate matter 2.5; population density; river; China; Yangtze River
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248156
作者单位	School of Management, Guangdong University of Technology, Guangzhou, 510520, China
推荐引用方式 GB/T 7714	He Y.,Lin K.,Liao N.,et al. Exploring the spatial effects and influencing factors of PM2.5 concentration in the Yangtze River Delta Urban Agglomerations of China[J],2022,268.
APA	He Y.,Lin K.,Liao N.,Chen Z.,&Rao J..(2022).Exploring the spatial effects and influencing factors of PM2.5 concentration in the Yangtze River Delta Urban Agglomerations of China.ATMOSPHERIC ENVIRONMENT,268.
MLA	He Y.,et al."Exploring the spatial effects and influencing factors of PM2.5 concentration in the Yangtze River Delta Urban Agglomerations of China".ATMOSPHERIC ENVIRONMENT 268(2022).