摘要
Abstract
Hour-by-hour O3 and meteorological parameter data from April to October 2023 at Anjia Station in Changzhou City were selected,and the O3 pollution characteristics in the northern suburbs of Changzhou City were analyzed using data statistical methods and potential pollution source analysis.The results show that ozone(O3)pollution in Anjia mainly occurs from April to October,with more days of ozone exceeding the standard in May,June and August.Ozone mass concentrations were relatively high in June and August,and lower in July.Most of the ozone pollution periods in Anjia are concentrated between 11:00 and 17:00,and most of the daily peak mass concentrations appear around 15:00.When the temperature is not more than 21℃,the ozone mass concentration is not easy to exceed the standard;when the temperature is above 26℃,the ozone exceeding the standard rate increases significantly.Ozone pollution is prone to occur when the relative humidity is not more than 60%,and ozone is not easy to exceed the standard when the relative humidity is greater than 75%.Judging from the analysis of potential pollution source areas,the ozone pollution at the Anjia site mainly comes from the local area,and there is the impact of short-distance transportation from urban built-up areas to the suburbs.关键词
常州市/郊区/臭氧/污染特征/潜在污染源贡献函数Key words
Changzhou City/suburbs/ozone(O3)/pollution characteristics/potential pollution source contribution function分类
资源环境
