Analysis on the Temporal and Spatial Distribution and Influencing Factors of Air Pollution in Qingyang
This study investigates the spatial and temporal distribution characteristics based on the monitoring data of air pollutant concentrations in Qingyang from 2015-2020,and the correlation between unbanization indicators and pollutants was analyzed using a grey correlation analysis.The results showed that:the overall achievement rate of ambient air quality in Qingyang was 90.6%from 2015 to 2020,the annual average concentration of SO2,NO2,PM10,PM2.5,CO showed a downward trend,while O3_8h_max showed an upward trend,so ozone pollution should be paid on more attention in the future.The monthly average concentration of pollutants showed significant seasonal variation characteristics,SO2,NO2,PM10,PM2.5,CO was more in winter,and less in summer,while O3_8h_max showed an opposite trend.Diurnal average concentration of SO2,NO2,PM10,PM2.5,CO revealed a bimodal pat-tern with peaks during morning and evening rush hours,the peak of O3_8h_max appeared during 17:00.Regional-ly,except PM2.5 and O3_8h_max,the annual average concentration of all pollutants were the highest in Huanxian.Gross regional product,gross industrial output value,population and proportion of the secondary industry are the main factors affecting the air quality in Qingyang.
atmospheric pollutionspatial and temporal distributiongrey correlation analysisinfluence factors of pollutantsQingyang
NETL
NSTL
万方数据
