Characteristic distribution of particulate matter(PM2.5,PM10)pollution and people exposure risk in Karamay,Xinjiang
Objective To understand the distribution characteristics of particulate pollution in the atmosphere and people exposure risk in Karamay,Xinjiang.Methods PM2.5,PM10 and air quality index data of Karamayfrom January 2018 to December 2022 were collected.The mathematical statistics method and environmental exposure risk assessment model were used to study the characteristic distribution of particulate matter pollution and the people exposure risk.Results From 2018 to 2022,there were significant differences in the concentrations of particulate pollutants among the months,seasons and years,which were higher in January,February,November,December and winter,respectively,the ratio of fine days increased year by year.During 2018-2022,the risk of exposure to PM2.5 and PM10 was below the maximum acceptable level(1× 10-6).Conclusion The air quality in Karamay is getting better year by year,but the prevention and control of the atmosphere should be strengthened in winter.
PM2.5PM 10Distribution of pollution characteristicsEnvironmental exposure risk assessment
NETL
NSTL
万方数据
