北京市区春夏PM_(2.5)和PM_(10)浓度变化特征研究  

Variation Characteristics of PM_(2.5) and PM_(10) Concentration in Beijing Urban Areas during Spring and Summer

作　　者：李广德[1] 李效文[2] 

机构地区：[1]中央广播电视大学农林医药学院,北京100039 [2]浙江省亚热带作物研究所林业与生态研究室,浙江温州325005

出　　处：《环境科学与管理》2013年第5期52-56,共5页Environmental Science and Management

摘　　要：通过对北京市2012年3月～6月PM2.5和PM10实时数据的整理和分析,结果表明,北京市区大气中细颗粒物PM2.5和可吸入颗粒物PM10浓度日变化趋势基本相同,PM2.5和PM10存在显著或极显著的正相关关系;3月～6月,PM2.5浓度随季节变化逐渐升高,PM10的浓度随季节变化先升高后减小;3月～6月PM2.5与PM10日平均浓度分别为62.77μg/m3和133.88μg/m3,分别为国家二级标准的83.69%和89.25%。Based on data released on the website of Beijing municipal environmental monitoring center from Match to June of 2012, this paper analyzed the temporal variation features of PM/.5 and PM10 concentration in Beijing urban areas during spring and summer. The result showed that daily variation of average PM2.5 and PMl0 concentration was similar, and they were significantly positive correlated. Daily PM2.5 and PMl0 average concentrations were 62.77μg/m^3 and 133.88 μg/m^3 respectively, which were 83.69 percent and 89.25 percent of the national second class daily average standard for PM2.5 and PM10.

关 键 词：细颗粒物(PM2.5) 可吸入颗粒物(PM10) 质量浓度 污染特征 

分 类 号：X51[环境科学与工程—环境工程]