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- Title
Spatial Inequality of Haze Pollution in China's Urban Regions and Coordinated Prevention and Control Countermeasures.
- Authors
Gang Ding; Baixiu Zhang; Pingping Zhao
- Abstract
The haze pollution issue in China has been widely paid attention among the social public recently. It is significant to analyse the spatial inequality of haze pollution in different urban regions of China objectively for providing corresponding efficient coordinated prevention and control countermeasures. Based on the PM2.5 data of China's 187 urban regions with data availability, this study adopted Gini coefficient decomposition and polarization measurement to analyse the spatial inequality of haze pollution in China's urban regions from 2013 to 2015. Results showed that the spatial inequality of haze pollution in China's urban regions was displaying a growth trend. The changing trends of the polarization index LU and the national overall Gini coefficient are basically consistent with each other, both indicating an increasing trend. Moreover, the spatial inequality of China's urban regions in the haze pollution level was mainly displayed as the intra-regional inequality within eastern, middle and western regions of China. The contribution of intra-regional Gini coefficient accounted for over 55% of the overall Gini coefficient, while the contribution of inequality within themselves accounted for less than 45%. There were existing five kinds of urban regions in total, by using k-means algorithm clustering, according to the haze pollution levels of them. As a result, coordinated haze pollution prevention and control countermeasures were provided in this study. The conclusions suggest that finding of this study is of certain theoretical value and practical significance for the coordinated treatment of haze pollution in different urban regions of China.
- Subjects
CHINA; EQUALITY; POLLUTION prevention; BIODEGRADATION; GINI coefficient
- Publication
Nature Environment & Pollution Technology, 2018, Vol 17, Issue 3, p903
- ISSN
0972-6268
- Publication type
Article