Exploring the impact mechanism of PM2.5 in urban functional areas based on geodetectors and pollutant measurement
In order to explore the air pollution of different land uses,this study selected five land types in Shenyang and Dalian as the study area,and used the mobile monitoring method to monitor the horizontal distribution of surface atmospheric particulate matter concentration,and used the geographic detector model to explore the influence mechanism between PM2.5 concentration and urban environmental factors.The results show that the main factors affecting the spatial differentiation of air pollutants are different according to the actual situation in different functional areas,and the land use properties are different.The most important factors affecting the concentration of air pollutants in residential,industrial,cultural,educational,tourism,and commercial areas are street direction,sky openness,water distance,line attaching rate,and traffic volume.The interaction between the most important factor and other factors is also relatively obvious.
mobile monitoring methodgeographic detectordifferent functional areasimpact mechanism
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