Ambient air quality impact of emissions from thermal power industry
XUE Wen-bo1, XU Yan-ling2, WANG Jin-nan3, TANG Xiao-long1
1. School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China;
3. Chinese Academy For Environmental Planning, Beijing 100012, China
The impact of the air quality from thermal power industry was analyzed quantitatively based on WRF-CAMx model. The results indicated that contribution rates to the annual average concentrations of SO2, NO2, PM2.5, sulfate, nitrate and primary PM2.5 from thermal power plants were 15.6%, 19.6%, 8.5%, 11.7%, 12.0% and 5.2%, respectively. There was a general characteristic that in regions where air pollutions were more severe, the contribution rates from thermal power plants were reversely lower. Specially, in Beijing-Tianjin-Hebei-Shandong-Henan, Yangtze River Delta, Wuhan and Changsha-Zhuzhou-Xiangtan city clusters located on the Plain and the Chengdu-Chongqing area where air pollutions were the most serious, the PM2.5 contribution rates from the thermal power industry were less than 8%. Improvement to the atmospheric quality due to ultra-low emission in thermal power industry was not obvious. In view of this, policy of multi-pollutant control should be also implemented in other industries besides thermal power plants in order to improve atmospheric quality.
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