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Air pollutant emissions reduction potential from burning coal in cities of air pollution transmission channel in Beijing-Tianjin-Hebei area |
WANG Yan-chao, JIANG Chun-lai, HE Jin-yu, ZHONG Yue-zhi, SONG Xiao-hui, LEI Yu, YAN Li |
Chinese Academy of Environmental Planning, Beijing 100012, China |
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Abstract A framework to estimate air pollutant emissions from coal-fired power plants, coal-fired boilers, and rural residential coal-using was developed for the "2+26" cities located in the air pollution transport channels in the Beijing-Tianjin-Hebei area. The existing policies and measures to control emissions from burning coal in "2+26" cities were summarized and the potentials of reducing SO2、NOx、PM、PM10、PM2.5 emissions was quantified for year 2017. The results showed that SO2、NOx、PM、PM10、PM2.5 emissions from burning coal were 87×104t、56×104t、64×104t、45×104t、32×104t in 2017, respectively, 44%, 48%, 33%, 32% and 30% less than which in 2015 due to implementation of major emission control measures including the ultra-low emissions retrofitting in coal-fired power plants, eliminating the coal-fired boilers and switching raw coal into electricity (gas). The reduction rates of coal-fired power plants, coal-fired boilers, and rural raw coal were 55%~70%, 31%~38%, 18%~21%, respectively. SO2 and NOx emission reductions were mainly attributed to the ultra-low emission of coal-fired power plants for most cities, and PM emission reductions from burning coal of Langfang and Baoding were most significant in the "2+26" cities, mainly thanks to strongly promoting switch from coal into electricity and gas in residential sector.
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Received: 05 November 2017
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