tudy on Atmospheric Aerosol Spatial and Temporal Distribution Characteristics and Pollution Compare Based on Multi-source Data
In order to study and analyze the physical characteristics of atmospheric aerosols taking Urumqi,Altay and Hotan in the arid area of Northwest China as the research objects,the temporal and spatial distribution characteristics of atmospheric aerosols were studied and analyzed based on multi-source data by using the reverse trajectory,potential contribution factor(PSCF)and concentration weight trajectory(CWT).Compared with coastal cities,Hotan had the highest concentration of PM pollutants and Altay had the lowest concentration of PM pollutants.The pollution degree of SO2 and CO in inland areas of Xinjiang was more serious,while the pollution degree of NO2reduced to some extent,and the pollution degree of O3appeared fluctuated.The research results provided a basis for analyzing and studying the physical characteristics of atmospheric aerosols in arid areas of northwest China.