摘要：利用2007年3月—2008年2月期间大气颗粒物PM10浓度值资料研究PM10分布及其与气象因子关系,旨在明确长春市PM10污染现状,便于相关部门加以控制。结果表明:1/10左右天数的长春市PM10浓度超过国家二级标准,基本均在冬季采暖期;一天之中PM10浓度呈双峰双谷型变化;一年4个季节中风速与PM10浓度相关性最显著,其次是温度和能见度;降水量只在夏季与PM10浓度相关性较好。
关键词：大气颗粒物；气象因子；相关性
Abstract：The distribution characteristics of mass concentrations of airborne particles PM10 and its correlation with weather factors were analyzed by using the data collected from March 2007 to February 2008 in Changchun. The results showed that PM10 mass concentrations went beyond the national secondary standard about one tenth of the observation days， which basically was in heating period in winter. The diurnal change of PM10 mass concentrations was double-peak and double-valley. PM10mass concentration had the highest correlation with the wind velocity， the next was the temperature and visibility. There was fine correlation with precipitation only in the summer.
Keywords：airborne particles； weather factors； correlation
