Characterization of Construction Dust Emission from Urban Perspective Based on Remote Sensing Image: A Case Study of Guangzhou.

As urbanization continues, construction-related dust has emerged as a significant contributor to urban air pollution. A comprehensive evaluation of the environmental impact of construction dust necessitates an understanding of the pollution discharge from an urban perspective. Consequently, this paper proposes a construction dust emission inventory construction method from the urban perspective, which combines remote sensing image interpretation and the emission factor method. On this basis, a particulate matter emission inventory of construction dust sources in Guangzhou in 2020 is established, and the emission characteristics of the study area are analyzed using a 2kmx2km grid distribution. The findings of this research provide a crucial data foundation for high-resolution pollutant diffusion simulations and environmental impact assessments. They also offer a macro perspective for observing construction pollution, which can be utilized by the government to monitor and control pollution from an urban perspective. [ABSTRACT FROM AUTHOR]