Effects of coal-fired power plants on PM2.5 and O3 pollution in winter
LIU Zhi-lin1,2,3, LI Xuan1, LIU Xiao1, XU Wen-qiang1
1. National Institute of Clean-and-Low-Carbon Energy, Beijing 102209; 2. Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing 100084, China; 3. Joint Center for Global Change Studies, Beijing 100875, China
Abstract: PM2.5 and O3 are known as main pollutants to worsen air quality.January 2013 is selected as the simulation period to represent the winter.The effect of emission reduction in coal-fired power plants in the winter on reducing pollution caused by PM2.5 and O3 is analyzed by means of GEOS-Chem model.It is found that the emissions of NOx, SO2 and dust from coal-fired power plants occupy 39.2%, 19.3% and 2.8% respectively of the total anthropogenic emissions, but only contribute 8.5% totally to PM2.5 concentration.O3 is controlled by VOC concentration and O3 concentration increases slightly with the emission reduction.There is a negative correlation relationship between China's average concentration of PM2.5 and O3 in winter, that is, a high PM2.5 concentration always accompanies a low O3 concentration and vice versa.Generally, these two kinds of pollutants do not occur simultaneously.Overall in the winter, PM2.5 is the primary pollutant in the North China Plain and the Yangtze River Delta while O3 pollution shall be paid more attention in Qiannan and Midwest areas.
刘之琳, 李轩, 刘潇, 徐文强. 燃煤电厂对冬季PM2.5和O3污染影响解析[J]. 现代化工, 2018, 38(9): 15-19.
LIU Zhi-lin, LI Xuan, LIU Xiao, XU Wen-qiang. Effects of coal-fired power plants on PM2.5 and O3 pollution in winter. Modern Chemical Industry, 2018, 38(9): 15-19.
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