2014年-2018年唐山市大气颗粒物分布特征研究  

Distribution Characteristics of Atmospheric Particulate Matter in Tangshan during 2014-2018

作　　者：杨安 胡健[3] 延军平 刘海红 李军[2] Yang An;Hu Jian;Yan Junping;Liu Haihong;Li Jun(College of Geography and Environmental Science,Tianjin Normal University,Tianjin 300387,China;Tianjin Key Laboratory of Water Resources and Environment,Tianjin Normal University,Tianjin 300387,China;State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550002,China;School of Geography and Tourism,Shaanxi Normal University,Xi an 710062,China)

机构地区：[1]天津师范大学地理与环境科学学院,天津300387 [2]天津师范大学天津市水资源与水环境重点实验室,天津300387 [3]中国科学院地球化学研究所环境地球化学国家重点实验室,贵州贵阳550002 [4]陕西师范大学地理科学与旅游学院,陕西西安710062

出　　处：《环境科学与管理》2019年第9期66-70,共5页Environmental Science and Management

基　　金：国家重大研究计划(91644104);国家自然科学基金项目(41172315);天津市水资源与水环境重点实验室开放基金资助

摘　　要：利用唐山市2014年-2018年PM2.5与PM10的监测资料,分析了唐山市大气颗粒物在不同时间尺度上的分布特征。结果显示:2014年-2018年,唐山市大气颗粒物污染较为严重,但总体呈下降趋势,首要污染物为PM2.5,其次为PM10。PM2.5、PM10浓度由高到低的季节顺序依次为冬季、春季、秋季和夏季,且冬季PM2.5与PM10的平均浓度均显著高于其他季节,污染期主要集中于供暖期。PM2.5和PM10月浓度变化为8月(夏末)最低、12月(冬初)最高,全年呈单谷型分布。PM2.5、PM10周浓度变化符合“周末效应”,即周六最高。Based on the monitoring data of PM2.5 and PM10 in Tangshan City from 2014 to 2018,the distribution characteristics of atmospheric particulate pollution at different temporal scales were analyzed.The results showed that from 2014 to 2018,the atmospheric particulate matter pollution in Tangshan City was more serious,but the overall trend was downward.The primary pollutant was PM2.5,followed by PM10.The order of PM2.5 and PM10 concentrations from high to low was winter,spring,autumn and summer,and the average concentration of PM2.5 and PM10 in winter was significantly higher than the other three seasons.In addition,the pollution period was mainly concentrated in the heating period.With a single valley distribution throughout the year,the monthly variations of PM2.5 and PM10 concentration was the lowest in August(late summer)and the highest in December(early winter).The concentration of PM2.5 and PM10 weekly changes were consistent with the“weekend effect”,and the PM2.5 and PM10 levels on Saturday were significantly higher than the other six days.

关 键 词：大气颗粒物 分布特征 空气质量 唐山市 

分 类 号：X51[环境科学与工程—环境工程]