期刊
ENVIRONMENTAL POLLUTION
卷 206, 期 -, 页码 183-187出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2015.06.038
关键词
Urbanization; Urban air quality; Land cover; Health risk; Susceptible population
资金
- Natural Science Foundation of China [NSFC41301199]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
- Chinese Academy of Sciences
- Science and Technology Service Network Initiative Project of the Chinese Academy of Sciences [KFJ-EW-ZY-004]
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences [YSW2013B04]
The PM2.5 concentration in 31% of China's territorial areas was less than 10 mu g/m(3), and in 26% of China's territorial areas was higher than 35 mu g/m(3). High concentrations of PM2.5 were found in the East China Plain, Sichuan province, and the Taklimakan desert. East China Plain was also found with strong significant positive trends. 73% of artificial surface (L01) was found with significant positive trends, but only 2% with significant negative trends. 76% of cropland (L02) was observed with significant positive trends, but only 2% with significant negative trends. The mean significant trends of PM2.5 concentration were 1.81 mu g/m(3).year for L01 and 1.71 mu g/m(3) year for L02, higher than that for the rest land covers. The PM2.5 pollution brought potential health risk to susceptible population: only 1% of thm lives at a safe level (<10 mu g/m(3)), but 69% of them were exposed to heavy PM2.5 pollution (>35 mu g/m(3)). (C) 2015 Elsevier Ltd. All rights reserved.
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