攀枝花市炳草岗大气污染物浓度特征分析

根据国控空气监测网在攀枝花市炳草岗站点的历史数据,分析3月和4月(2021—2023年)期间的SO2、NO2、CO、O3、PM2.5和PM10,得到这些污染物浓度时间分布和变化规律,探讨污染物浓度之间的相关性,结合颗粒物化学组分对污染物产生原因进行剖析。Pearson相关性分析表明,主要污染物浓度变化幅度呈显著相关,同时与温度高低、日光辐射强度成正比关系。污染物每日最大小时浓度集中在10点至18点,控制机动车、餐饮等污染源排放尤为重要。

Based on the historical data of the State-controlled Air Monitoring Network at the Bingcaogang Station in Panzhihua City,the analysis of SO2,NO2,CO,O3,PM2.5 and PM10 during March and April(2021 to 2023)was carried out to obtain the temporal distribution and change laws of these pollutants,explore the correlation between pollutant concentrations,and analyze the causes of pollutants based on the chemical composition of particulate matter.Pearson correlation analysis showed that the change range of main pollutant concentrations was significantly related,and was also proportional to temperature and solar radiation intensity.The maximum daily hourly concentration of pollutants is concentrated between 10:00 and 18:00.It is particularly important to control emissions from pollution sources such as motor vehicles and restaurants.