2002年兰州市春季大气气溶胶特征分析  

Analysis of the sand-stormy weather in Lanzhou during the spring of 2002

作　　者：王鑫[1] 奚晓霞[1] 郭治龙[1] 刘治国[1] 陈秀玲[1] 

机构地区：[1]兰州大学大气科学学院,甘肃兰州730000

出　　处：《兰州大学学报（自然科学版）》2006年第3期44-47,共4页Journal of Lanzhou University(Natural Sciences)

基　　金：国家重大基础研究发展规划项目(2005CB422001;G2000048703)国家自然科学基金项目(40075025)资助.

摘　　要：利用2002年兰州地区春季背景大气、沙尘天气状况下大气气溶胶的实测资料,得到了不同天气状况下大气气溶胶(TSP)的质量浓度和飘尘(PM10)的粒径分布,着重分析了不同天气状况下大气气溶胶的分布规律及其物理特征．研究发现:TSP中细粒子质量浓度沙尘暴期间比非沙尘暴期间相对减少;背最大气条件下,飘尘对人体健康影响比较严重．Asian dust storms carry a large amount of particles from desert areas. The aim of this study is to retrieve data by sampling under different atmospheric conditions such as sand-blowing and dust storm in Lanzhou. The rules of particle size distribution under different conditions were also obtained, with the conclusion that PM10 can be inhaled into the lung of people and other animals, doing harm to their health.

关 键 词：沙尘天气 沙尘气溶胶 粒径分布 

分 类 号：P421[天文地球—大气科学及气象学]