Analysis on Variation Characteristics and Influence Factors of Ambient Air Quality in Chamdo City in 2023
According to the automatic monitoring data of ambient air quality in Chamdo City in 2023,this paper ana-lyzed the change trend and influencing factors of the concentration of major ambient air pollutants and ambient air quality in Chamdo City in 2023,and so as to provide scientific reference for the environmental management depart-ment of Chamdo City to carry out precise control of ambient air pollution and continue to fight the battle of blue sky.The results show that the ambient air quality in Chamdo City shows a stable and good trend in 2023.The number of effective monitoring days of ambient air is 365 days,of which 257 days are of excellent air quality and 108 days of good,and the ratio of good days is 100%,which is the same as in 2022.The main air pollutant affecting the air quali-ty in Chamdo City is O3,and the pollutant concentration is strongly seasonal.The concentration of PM2.5,PM10 and NO2 pollutants is lower in summer and higher in winter,and the concentration of O3 pollutants is lower in autumn and winter and higher in spring and summer.
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