Characteristics and correlation analysis of environmental air pollution in Tongren City from 2016 to 2021
Using the monitoring data of environmental air quality in the urban area of Tongren City from 2016 to 2021,this paper analyzes the characteristics of environmental air pollution,Pearson correlation,and grey correlation.Results show that the annual rates of days with AQI≤100 in the ur-ban area of Tongren City are over 93.2%,with the main pollution level being light pollution.The main pollutants are O3,PM2.5,and PM10.The average annual concentration of pollutants,except for O3,shows an overall downward trend year by year.In Pearson correlation analysis,there is a strong negative correlation between SO2 and O3 and daily precipitation,a strong negative correlation between PM2.5 and average wind speed,and a less significant correlation between other pollutants and meteor-ological elements.In the grey correlation analysis,the six indicators of environmental air quality mo-nitoring show a high correlation with climate and total population.
NETL
NSTL
万方数据
