乌鲁木齐市PM_(2.5)浓度与气象条件耦合分析  

Coupling analysis of PM_(2.5) concentrations and meteorological conditions in Urumqi

作　　者：孙蓉花 陈学刚[1,2] 魏疆 韩文堂[1,2] SUN Ronghua;CHEN Xue- gang;WEI Jiang;HAN Wentang(School of Geography and Tourism ,Xinjiang Normal University ,Uru- rnqi Xinjiang 830054;Key Laboratory of Arid Region Lake Environment and Resource of Xinjiang, Urumqi Xinjiang 830054;School of Resource ~ Environment ,Xinjiang University ,Urumqi Xinjiang 830046)

机构地区：[1]新疆师范大学地理科学与旅游学院,新疆乌鲁木齐830054 [2]新疆干旱区湖泊与资源重点实验室,新疆乌鲁木齐830054 [3]新疆大学资源与环境学院,新疆乌鲁木齐830046

出　　处：《环境污染与防治》2017年第12期1353-1357,共5页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.41161074;No.41161029;No.41461033)

摘　　要：为探究气象条件对污染物浓度的影响,于2013年10月至2014年10月在乌鲁木齐市主城区采集PM_(2.5)样品,并选取同期气象站监测的气象数据进行分析。结果表明:(1)乌鲁木齐市采暖期PM_(2.5)日均值平均达到84.70μg/m^3,超出了《环境空气质量标准》(GB 3095—2012)中24h平均二级限值(75μg/m^3),是非采暖期(20.66μg/m^3)的4倍多。(2)采暖期风速、相对湿度、气温、水汽压与PM_(2.5)日均值极显著相关,非采暖期相对湿度与PM_(2.5)日均值极显著相关。In order to explore the effect of meteorological conditions on the pollutants concentration,PM（2.5） samples were collected in Urumqi urban area during October 2013 to October 2014,meteorological data were selected from weather stations monitoring on the same time for investigation.Results showed that：（1）the daily average concentrations of PM（2.5） reached 84.70μg/m^3 during the heating period in Urumqi,which exceeded the 24-hour average second-level limit（75μg/m^3）of ＂Environmental air quality standard＂（GB 3095-2012）,and it was more than four times during the non-heating period（20.66μg/m^3）.（2）The wind speed,relative humidity,temperature,vapor pressure and the daily average concentrations of PM（2.5） existed significant relationship during the heating period,relative humidity and PM（2.5） concentrations were related significantly in non-heating period.

关 键 词：乌鲁木齐 PM2.5 气象要素 相关性 

分 类 号：X16[环境科学与工程—环境科学] X51