| 摘要 |
Based on the monitoring data of ambient air quality and meteorological observation data, the characteristics and meteorological influencing factors of air pollution in Luojiang District of Deyang City from 2018 to 2022 were analyzed. The results show that from 2018 to 2022, the main air pollutants affecting the air quality of Luojiang District of Deyang City were PM2.5 and PM10, and the primary pollutant on heavy pollution days was basically PM2.5. PM2.5 and PM10 pollution showed obvious seasonal differences, and PM2.5 concentration exceeded the limit mainly in spring and winter, among which it was the most serious in early spring , especially in January and February, followed by December. PM10 exceeding the standard had a high seasonal correlation with PM2.5 exceeding the standard, mainly in spring and winter, among which it was the most serious in winter, especially in December, followed by January. PM2.5 and PM10 pollution showed an overall weakening trend. PM2.5 and PM10 concentration were closely related to meteorological factors such as temperature, relative humidity, wind speed, precipitation and air pressure, and were mainly affected by rainfall. |
