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Effect of Construction Dust on Urban PM2.5 Emission Characteristics:A Case Study of the Main Urban Area of Chongqing, China


Affiliations
1 School of Construction, Management and Real Estate, Chongqing University, Chongqing, 400045, China
2 School of Build Environment, University of Reading, Reading, RG6 6AW, United Kingdom
 

This paper attempts to accurately evaluate the contribution of construction dust to China's PM2.5 emissions in order to increase environmental authorities' efficiency at managing emissions in urban environments. The study was conducted in the main urban area of Chongqing. Three typical construction sites were designated as the study area, where PM2.5 emission concentration data were collected through field investigation and processed by an AERMOD model. PM2.5 emission intensity and annual average PM2.5 emissions from construction dust in the study area were also ascertained. The results showed that the PM2.5 emission intensity and annual average PM2.5 emissions from construction dust in the study area were 0.0059 kg/m2 month and 6220.5 t, respectively. The PM2.5 emission concentration of construction dust showed a negative correlation with real-time wind speed. This paper's conclusions can serve as a reference for related departments that make decisions on PM2.5 emission management.

Keywords

Construction Dust, PM2.5 Emission, AERMOD Model.
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  • Effect of Construction Dust on Urban PM2.5 Emission Characteristics:A Case Study of the Main Urban Area of Chongqing, China

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Authors

Du Yongjie
School of Construction, Management and Real Estate, Chongqing University, Chongqing, 400045, China
Ren Hong
School of Construction, Management and Real Estate, Chongqing University, Chongqing, 400045, China
Cai Weiguang
School of Construction, Management and Real Estate, Chongqing University, Chongqing, 400045, China
Qin Beibei
School of Build Environment, University of Reading, Reading, RG6 6AW, United Kingdom
Ma XianRui
School of Construction, Management and Real Estate, Chongqing University, Chongqing, 400045, China

Abstract


This paper attempts to accurately evaluate the contribution of construction dust to China's PM2.5 emissions in order to increase environmental authorities' efficiency at managing emissions in urban environments. The study was conducted in the main urban area of Chongqing. Three typical construction sites were designated as the study area, where PM2.5 emission concentration data were collected through field investigation and processed by an AERMOD model. PM2.5 emission intensity and annual average PM2.5 emissions from construction dust in the study area were also ascertained. The results showed that the PM2.5 emission intensity and annual average PM2.5 emissions from construction dust in the study area were 0.0059 kg/m2 month and 6220.5 t, respectively. The PM2.5 emission concentration of construction dust showed a negative correlation with real-time wind speed. This paper's conclusions can serve as a reference for related departments that make decisions on PM2.5 emission management.

Keywords


Construction Dust, PM2.5 Emission, AERMOD Model.

References