北京地区大气气溶胶光学特性与区域雾霾事件分析  

Monitoring the atmospheric aerosol optical characteristics in Beijing region and the regional haze event

作　　者：孙文文[1] 江洪[1,2,3] 陈洪滨[4] 陈晓峰[1] 舒海燕[3] 马锦丽[1] 

机构地区：[1]浙江农林大学林业与生物技术学院,浙江省森林生态系统碳循环与固碳减排重点实验室,浙江杭州311300 [2]南京大学国际地球系统科学研究所,江苏南京210093 [3]西南大学生命科学学院,三峡库区生态环境教育部重点实验室,重庆400715 [4]中国科学院大气物理研究所,北京100029

出　　处：《环境污染与防治》2016年第2期1-6,12,共7页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.61190114、No.41171324);科技部国家科技基础条件平台项目(No.2005DKA32300);高等学校博士学科点专项科研基金资助项目(No.20110091110028)

摘　　要：利用法国CEMEL公司制造的自动跟踪扫描太阳光度计(CE-318)获取中国北京地区2013—2014年气溶胶数据,并结合MODIS遥感数据以及美国国家海洋和大气管理局(NOAA)的气象资料进行后向轨迹分析,探讨了污染物来源与其雾霾事件的相关性。结果表明:在时间上,北京地区气溶胶光学厚度(AOD)具有春夏季大、秋冬季小的特点;在空间上,北京地区气溶胶颗粒物在大尺度上主要来源于内蒙地区的沙尘以及近海海域的海盐颗粒,小范围内的气溶胶颗粒主要来自人为污染尤其是汽车尾气、工业废气等排放;北京地区2013年6月以及2014年4月PM10与AOD的相关系数(R2)分别为0.418和0.599,说明雾霾发生期间PM10与AOD的相关性较高。The aerosol properties data of Beijing, China in 2013 and 2014 obtained by automatic tracking sun photometer CE-318 made in the French CEMEL company,MODIS remote sensing data and the US National Oceanic and Atmospheric Administration （NOAA） weather data were all used to analyze the backward trajectories,as well as the correlation between the pollutant source and the haze event. The results showed that in the temporal, the aerosol optical thickness of spring and summer in Beijing were higher,but lower in autumn and winter. In the spatial,the main sources of aerosol particles on a large scale were the sands of Inner Mongolia region and the sea salt from the coastal waters nearby, but was man-made pollution,especially car exhaust,industrial emissions and else on a small scale. The correlation coefficients of PM10 and AOD were 0.418 and 0.599 in June 2013 and April 2014 respectively, which suggested that during the haze occurred,the correlation of PM10 and AOD was higher.

关 键 词：气溶胶光学厚度 浑浊系数 波长指数 气流轨迹 

分 类 号：X513[环境科学与工程—环境工程]