基于遥感监测的工地和裸地扬尘排放与管控

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Abstract Taking Changping District of Beijing as a research object, based on remote sensing monitoring and emission factor method, this paper analyzed the distribution, emission characteristics and control situation of dust sources from construction sites and bare land. The results showed that the total area of construction sites with different scales was not much different, among which small-scale construction sites account for an absolute advantage, and the dustproof rate of large and medium-sized construction sites was higher than that of small-scale construction sites. Compared with construction sites, bare land had a larger total area, more quantity, smaller unit area, and relatively greater difficulty in control. The dustproof rate of bare land was the lowest. Beiqijia Town and Shahe Town account for 40% of the total area of construction sites in the whole district, indicating that urban construction was developing northward from Huitian area. The dustproof rate of Huitian area and its adjacent Shahe Town and Beiqijia Town was higher than that of Baishan Town, Cuicun Town and three mountainous towns in the north. The TSP emissions from construction sites and bare land in Changping District were 48285t and 2756t respectively in 2021. The dust emission from bare land was only 6% of that from construction sites. Compared with the theoretical value without control measures, both construction site dust and bare land dust reduced emissions by 25%, among which Huitian area had better control effect on both construction site dust and bare land dust than other areas. This study combined localized emission model with remote sensing interpretation to estimate dust emission amount, which can solve the problem of underestimation of emission amount by using non-localized emission factors. It provided a way to promote localization of dust measurement for construction site and bare land, improved spatial-temporal accuracy and update efficiency.

Key words： remote sensing monitoring dust source distribution dustproof rate dust emission effectiveness of control measures

Received: 23 September 2022

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X513

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	Articles by authors
	LI Ting-ting
	XU Tao
	GENG Kai-yu
	ZENG Qing-wei
	GONG Fu-qian
	FAN Shou-bin

Cite this article:

LI Ting-ting,XU Tao,GENG Kai-yu等. Dust emission and control of construction sites and bare land based on remote sensing monitoring[J]. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(6): 2823-2832.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2023/V43/I6/2823

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