Details

Autor(en) / Beteiligte

• Li, Jingyuan
• Cheng, Jinhua
• Wen, Yang
• Cheng, Jingyu
• Ma, Zhong
• Hu, Peiqi
• Jiang, Shurui

Titel

The Cause of China's Haze Pollution: City Level Evidence Based on the Extended STIRPAT Model

Ist Teil von

• International journal of environmental research and public health, 2022-04, Vol.19 (8), p.4597

Ort / Verlag

Switzerland: MDPI AG

Erscheinungsjahr

2022

Quelle

MEDLINE

Beschreibungen/Notizen

• Based on the extended STIRPAT model, this paper examines social and economic factors regarding PM concentration intensity in 255 Chinese cities from 2007 to 2016, and includes quantile regressions to analyze the different effects of these factors among cities of various sizes. The results indicate that: (1) during 2007-2016, urban PM concentration exhibited declining trends in fluctuations concerning the development of the urban economy, accompanied by uncertainty under different city types; (2) population size has a significant effect on propelling PM concentration; (3) the effect of structure reformation on PM concentration is evident among cities with different populations and levels of economic development; and (4) foreign investment and scientific technology can significantly reduce PM emission concentration in cities. Accordingly, local governments not only endeavor to further control population size, but should implement a recycling economy, and devise a viable urban industrial structure. The city governance policies for PM concentration reduction require re-classification according to different population scales. Cities with large populations (i.e., over 10 million) should consider reducing their energy consumption. Medium population-sized cities (between 1 million and 10 million) should indeed implement effective population (density) control policies, while cities with small populations (less than 1 million) should focus on promoting sustainable urban development to stop environmental pollution from secondary industry sources.