“2+26”城市秋冬季大气污染治理措施效果评估

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Abstract Emission reductions from different air pollution control measures during autumn and winter seasons in "2+26" cities of Beijing-Tianjin-Hebei and its surrounding areas were calculated in this study. The results showed that total emission reductions of SO₂, NO_x, VOCs, PM_2.5, and PM₁₀ in "2+26" cities during autumn and winter seasons in 2017~2018 were 432.6, 206.3, 183.6, 280.0, and 473.1kilo-tons respectively, while those of which in 2018~2019 were 166.8, 181.1, 110.3, 170.4, and 253.3kilo-tons respectively. According to this, the effects of each measure were evaluated by the CAMx model. By implementing air pollution control measures, the simulated concentrations (percentages) of SO₂, NO_x, PM_2.5, and PM₁₀ in "2+26" cities during autumn and winter seasons in 2017~2018 decreased 22.69μg/m³ (42.67%), 33.22μg/m³ (37.81%), 24.28μg/m³ (22.58%) and 31.26μg/m³ (18.67%) respectively, while those of which in 2018~2019 decreased 9.36μg/m³ (26.86%), 25.73μg/m³ (30.62%), 16.38μg/m³ (16.09%) and 20.43μg/m³ (12.33%) respectively. The sequence of averaged reduction efficiency on PM_2.5 concentrations of each control measure during autumn and winter seasons in 2017~2018 was as follows:scattered and disqualified enterprises governance, transportation structural adjustment, industrial off-peak production, civil coal burning replacement, and coal-fired boiler renovation, and that of which in 2018~2019 was as follows:upgrading and transformation of key industries, industrial off-peak production, scattered and disqualified enterprises governance, transportation structural adjustment, civil coal burning replacement, and coal-fired boiler renovation.

Key words： 2+26 cities air quality simulation PM_2.5 emission reduction assessment

Received: 23 March 2021

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X51

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	LI Yang
	TANG Wei
	DU Jin-hong
	ZHANG Zhong-zhi
	DU Xiao-hui
	XUE Zhi-gang
	MENG Fan
	CHAI Fa-he

Cite this article:

LI Yang,TANG Wei,DU Jin-hong等. Assessment on air pollution control measures during autumn and winter seasons in “2+26” cities[J]. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(10): 4484-4494.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2021/V41/I10/4484

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