2023年底铜陵市细颗粒物污染过程分析OACHSSCD

In order to study the characteristics of particulate matter pollution in the ambient air of Tongling city,a fine particulate matter pollution process occurred in December 2023 in Tongling city as the research object.The environmental air quality monitoring data and atmospheric particulate matter composition monitoring data during the pollution process were used for analysis.During the pollution process,particulate matter undergoes three stages:accumulation,heaviness,and removal,with the main source of pollution being secondary transformation sources.The pollution period is in winter,and poor conditions for pollution transmission and diffusion,as well as local pollution accumulation,are the main reasons for the occurrence of this pollution process.