摘要
基于北京市2014~2020年臭氧8 h均值和2018~2020年O_(3)时均值的监测数据,分析了北京市O_(3)污染时间变化规律及其与其他污染物的相关性。结果表明:北京市2014~2017年O_(3)浓度是逐年上升,2018年则开始O_(3)连续下降。夏季O_(3)浓度高,冬季浓度最低。日变化呈现“单峰”变化情况为:3:00~5:00 O_(3)浓度呈现最低,15:00~16:00达到最高。当臭氧的浓度升高时,二氧化氮、一氧化碳、细颗粒物的浓度降低,O_(3)与NO_(2)、CO、PM_(2.5)的浓度均呈现负相关性。
Based on the monitoring data of the 8-hour ozone mean value in Beijing from 2014 to 2020 and the O_(3) hourly mean value from 2018 to 2020,the temporal variation of O_(3) pollution in Beijing and its correlation with other pollutants were analyzed.The analysis results show that the O_(3) concentration in Beijing increased year by year from 2014 to 2017,and began to decline continuously in 2018.The concentration of O_(3) is high in summer and the lowest in winter.The diurnal variation presents a"single peak"variation,with the lowest O_(3) concentration at 03:00~05:00 and the highest at 15:00~16:00.When the concentration of ozone increases,the concentrations of nitrogen dioxide,carbon monoxide,and fine particulate matter decrease,and the concentrations of O_(3) and NO_(2),CO,and PM_(2.5) are all negatively correlated.The concentration of ozone reaches the highest in summer and the lowest in winter.The daily average concentration of ozone showed a single peak change,the ozone concentration reached the lowest at 03:00~05:00 and the highest at 15:00~16:00.The concentration of ozone increases,and the concentration of nitrogen dioxide,carbon monoxide,and fine particulate matter(PM 2.5)decreases.Ozone concentrations have a negative correlation with them.
作者
王旺民
郑尼娜
于攀文
Wang Wangmin;Zheng Nina;Yu Panwen(School of Urban Construction,Anhui Xinhua University,Hefei,Anhui 230088,China)
出处
《绿色科技》
2022年第10期155-158,共4页
Journal of Green Science and Technology
基金
安徽省大学生创新训练项目(编号:AH201912216187)
安徽省高等学校自然科学研究重点项目(编号:KJ2018A0594)。
关键词
臭氧
二氧化氮
颗粒物
污染特征
北京市
Beijing
ozone
nitrogen dioxide
particulate matter
pollution characteristics
