太原市近地面臭氧浓度特征及相关因子分析  

The Characteristics of Near Surface O_(3) Concentration in Taiyuan and Associated Factors Analysis

作　　者：张静芳 Zhang Jingfang(Shanxi Taiyuan Ecological Environment Monitoring Center,Taiyuan Shanxi 030002,China)

机构地区：[1]山西省太原生态环境监测中心,山西太原030002

出　　处：《山西化工》2024年第12期255-258,共4页Shanxi Chemical Industry

摘　　要：利用2015—2017年太原市区8个国控站点的监测数据,分析太原市O_(3)浓度日变化、季变化、年变化及空间分布特征,结果表明:2015—2017年太原市O_(3)污染有逐年加重的趋势。日变化特征呈典型“单峰型”,一天中O_(3)浓度最低值出现在凌晨05:00—07:00,最高值在15:00—17:00;一年中夏季和春季O_(3)污染最严重,峰值主要出现在5—7月;O_(3)浓度在空间分布上基本呈现整体升高的趋势。O_(3)与颗粒物PM10和PM_(2.5)呈显著负相关性;与其前体物CO和NO_(2)也呈显著负相关性。Based on the monitoring data of 8 national control environment monitoring stations in Taiyuan from 2015 to 2017,the daily,seasonal,annual and spatial distribution characteristics of O_(3) concentration in Taiyuan were analyzed.The results show that the trend of the O_(3) pollution is aggravated gradually in Taiyuan from 2015 to 2017.The daily variation characteristics are typical"unimodal",from 5:00 to 7:00 the O_(3) concentration is the lowest,while the highest is from 15:00 to 17:00.The O_(3) pollution is most serious in summer and spring,and the peak occurs mainly from May to July.the spatial distribution of O_(3) concentration shows an overall upward trend.The concentration of O_(3) was significantly negatively correlated with PM_(2.5),PM10 and its precursors CO and NO_(2).

关 键 词：太原 臭氧(O_(3)) 变化特征 相关性分析 

分 类 号：X831[环境科学与工程—环境工程]