中国北方地区农村家庭清洁取暖政策的汞减排效益评估

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Abstract To quantify the effects of mercury (Hg) emission reductions from the rural household cleaner heating policy (CHP) in northern China, the air pollutants emission inventory method and the GEOS-Chem model were employed to develop the Hg emission inventory and simulate Hg deposition reduction in the key regions during the 13th Five Year Plan period. Results show that the implementation of the CHP had avoided 59.65million tons of residential coal consumption and 10.54tons (Uncertainty Interval: -9.65%~6.94%) of Hg emissions in the study regions. More specifically, the Hg⁰, Hg^Ⅱ and Hg_p emission declined 8.64tons, 1.79tons and 0.11tons, respectively. The CHP programs of coal-to-gas, coal-to-electricity, as well as the other heating energy transition technologies contributed 51.20%, 38.02% and 10.78% of the total Hg reduction, and the CHP avoided 0.49tons of Hg deposition in key regions. Meanwhile, CHP’s spillover effect reduced Hg deposition by 0.66tons in the area around the key regions. Optimization strategies were proposed to further reduce Hg emissions and promote rural energy transition in the future.

Key words： cleaner heating policy (CHP) rural households residential coal substitution mercury emission reductions atmospheric mercury transportation and diffusion

Received: 12 July 2022

PACS:	TU832
	X51

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	Articles by authors
	FANG Pei
	ZHANG Wei
	SONG Ling-ling
	XU Zeng
	WU Zhao-ming
	LEI Zhi-yu
	HU Tong-jia
	LI Ming-yang
	CHEN Long
	LI Jia-shuo

Cite this article:

FANG Pei,ZHANG Wei,SONG Ling-ling等. Benefit assessment of mercury emission reductions under the cleaner heating policy for the rural households in northern China[J]. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(2): 981-992.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2023/V43/I2/981

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