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Impact of urbanization level on urban air quality: A case of fine particles (PM2.5) in Chinese cities
Han, Lijian; Zhou, Weiqi; Li, Weifeng; Li, Li
2014
Source PublicationENVIRONMENTAL POLLUTION
ISSN0269-7491
Volume194Issue:1Pages:163-170
AbstractWe examined and compared PM2.5 concentrations in urban and the surrounding regions, and further investigated the impact of urbanization on urban PM2.5 concentrations at the Chinese prefectures. Annual PM2.5 concentrations in most prefectures were greater than 10 mu g/m(3), the air quality guideline of the World Health Organization. Those prefectures were mainly distributed along the east coast and southeast of Sichuan province; The urban PM2.5 concentrations (Urban(PM2.5)) in 85 cities were greater than (>10 mu g/m(3)) those in the surrounding area. Those cities were mainly located in the Beijing-Sichuan and Shanghai-Guangxi belts. In addition, Urban(PM2.5) was less than (<0 mu g/m(3)) that in surrounding areas in only 41 prefectures, which were located in western China or nearby mega cities; Significant positive correlations were found between Urban(PM2.5) and urban population (R-2 = 0.99, P < 0.05), and between Urban(PM2.5) and urban second industry fraction (R-2 = 0.71, P < 0.05), suggesting that urbanization had considerable impact on PM2.5 concentrations. (C) 2014 Elsevier Ltd. All rights reserved.
Department城市与区域生态国家重点实验室
KeywordUrbanization Air Pollution Fine Particulate Matter (Pm2.5) Chinese Prefectures
Citation statistics
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/9176
Collection城市与区域生态国家重点实验室
Recommended Citation
GB/T 7714
Han, Lijian,Zhou, Weiqi,Li, Weifeng,et al. Impact of urbanization level on urban air quality: A case of fine particles (PM2.5) in Chinese cities[J]. ENVIRONMENTAL POLLUTION,2014,194(1):163-170.
APA Han, Lijian,Zhou, Weiqi,Li, Weifeng,&Li, Li.(2014).Impact of urbanization level on urban air quality: A case of fine particles (PM2.5) in Chinese cities.ENVIRONMENTAL POLLUTION,194(1),163-170.
MLA Han, Lijian,et al."Impact of urbanization level on urban air quality: A case of fine particles (PM2.5) in Chinese cities".ENVIRONMENTAL POLLUTION 194.1(2014):163-170.
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