摘要
利用呼和浩特市PM_(2.5)和PM_(10)自动监测数据,分析PM_(2.5)与PM_(10)的浓度分布特征和年度变化规律。研究结果表明,PM_(10)中PM_(2.5)所占比例为48%,PM_(2.5)和PM_(10)污染系数为0.817,线性分析结果显示PM_(2.5)和PM_(10)线性相关显著。同时,PM_(2.5)和PM_(10)的污染呈现秋冬高,春夏低的特点。按照《环境空气质量标准》的标准限值,呼和浩特市2019年空气质量总体状况良好,严重污染和重度污染天气不足10天,达到“优”“良好”的总天数超过290天。
Use the automatic monitoring data in Hohhot to analyze the distribution characteristics and annual changes of PM_(2.5)and PM_(10).The results show that PM_(2.5)accounts for 48%of PM_(10),and the pollution coefficient of PM_(2.5)and PM_(10)is 0.817.The linear analysis results show that the relationship between PM_(2.5)and PM_(10)is significant.At the same time,the pollution of PM_(2.5)and PM_(10)is characterized by high in autumn and winter and low in spring and summer.According to the standard limits of《Ambient Air Quality Standards》,the overall air quality of Hohhot in 2019 is in good condition,with severe and heavily polluted weather less than 10 days,reaching the total number of days of"excellent"and"good"over 290days.
作者
范晓黎
王小妍
闫海霞
Fan Xiaoli;Wang Xiaoyan;Yan Haixia(Inner Mongolia Environmental Monitoring Station Hohhot Brach,Hohhot Inner Mongolia 010030,China)
出处
《环境与发展》
2022年第5期66-68,74,共4页
Environment & Development
