北京市大气悬浮颗粒物TSP和PM10的季节变化特征  

Seasonal Variation Characteristics of TSP and PM10 in Beijing

作　　者：荆俊山[1] 傅刚[1] 陈栋[2] 

机构地区：[1]中国海洋大学海洋气象系物理海洋实验室 [2]清华大学环境科学与工程系,北京100084

出　　处：《中国海洋大学学报（自然科学版）》2008年第4期539-541,共3页Periodical of Ocean University of China

基　　金：国家自然科学基金项目(40675060);国家高技术研究发展计划项目(2006AA09Z151);国家海洋局项目(908-02-03-10);中国气象局公益性行业(气象)科研专项经费项目(GYHY200706031)资助

摘　　要：为了解北京市大气悬浮颗粒物随时间的变化规律,对北京市2000年全年的总悬浮颗粒物(Total Suspended Par-ticulates,TSP)和可吸入颗粒物(Inhalation Particle Matter,PM10)观测结果进行了统计分析。结果表明:颗粒物浓度春季最高,夏季最低,TSP浓度和PM10浓度有良好的线性关系(相关系数为0.77)。通过后向轨迹分析得出,发生在2000年4月6日和25日的2次强沙尘天气的沙尘源地位于蒙古国的东南部和内蒙古的中西部。In order to understand the temporal variation of the atmospheric suspended particulates in Beijing, the observational data of the Total Suspended Particulates（TSP） and inhalation particle matter（PM10） during the whole year of 2000 was analyzed. The result showed that the suspended particulates concentration exhibited a distinct seasonal variation： the highest in spring and the lowest in summer. There was a good linear relationship between the concentration of TSP and PM10 （correlation coefficient was 0.77）. Back trajectory analysis indicated that the source region of sandstorm on 6 and 25 April, 2000 probably originated from the southeastern part of Mongolia and the Midwest of Inner Mongol.

关 键 词：悬浮颗粒物 季节变化 相关性 沙尘源地 

分 类 号：P402[天文地球—大气物理学与大气环境]