【摘要】 本文通过对兰州市城关区冬季、春季大气气溶胶的监测，分析了该地区冬季、春季大气气溶胶的污染状况。经过分析和比较表明，该地区总悬浮颗粒物（ＴＳＰ）和飘尘对大气的污染相当严重，飘尘占ＴＳＰ的比例偏大，飘尘的颗粒分布在冬季和春季相似。没有良好消烟除尘设备的多源排放和特殊地形条件下的气象因素是引起该地区严重大气气溶胶污染的主要因素。更多还原

【Abstract】 The pollution of the aeroslos in winter and spring was analysed through the monitoring of the air aerosols in Chengguan District,Lanzhou. The results indicate that the air of the district is contaminated seriously by the total suspended particles(TSP) and the floating dust. The particles account for 58. 6% of the TSP and have an approximate distribution pattern in winter and spring. The presence of the mult─pollution sources and the climatic environment are the dominant factors.更多还原