一次连续在线观测分析天津市细颗粒物污染特征  

Characteristics Analysis of Air Fine Particles Pollution by A Continuous On-line Monitoring in Tianjin

作　　者：董海燕[1] 古金霞[2,3,4] 陈魁[1] 白志鹏[3,4] 姜伟[1] 蒙海涛[1] 

机构地区：[1]天津市环境监测中心,天津300191 [2]天津城市建设学院,天津300384 [3]南开大学,天津300071 [4]国家环境保护城市空气颗粒物污染重点实验室,天津300071

出　　处：《环境监测管理与技术》2010年第6期42-45,50,共5页The Administration and Technique of Environmental Monitoring

摘　　要：根据2005年的5月17日—5月23日GR IMM(1.109#)谱分析仪在线观测结果考察天津市细颗粒物浓度和质量浓度特征。观测期间,天津市颗粒物数浓度平均值为1 124 cm-3,粒径分布为0.25μm^0.60μm,98.5%粒子的粒径<0.65μm。同期PM10日均质量浓度值为204μg/m3,ρ(PM2.5)为104μg/m3,ρ(PM1.0)为82.9μg/m3。ρ(PM1.0)/ρ(PM2.5)超过80%,粒径<1μm超细颗粒物为天津城市大气颗粒物的主要成分。The mass and number concentration of fine particles of Tianjin was observed by a on-line monitoring work with GRIMM（1.109#）during the period of May 2005.The particles number concentration was 1 124 cm-3 with their diameters between 0.25 μm and 0.60 μm.The particles with diameters less than 0.65 μm accounted for 98.5% in the atmosphere,while the mass concentrations of PM10,PM2.5 and PM1.0 were 204 μg/m3,104 μg/m3 and 82.9 μg/m3 respectively.Result showed that the percentage of PM1.0/PM2.5 concentration accounted for more than 80%,which indicated that dominated aerosol in Tianjin were ultra fine particles below 1 μm diameter.

关 键 词：空气污染 在线监测 可吸入颗粒物 超细颗粒物 气溶胶细粒子 天津 

分 类 号：X823[环境科学与工程—环境工程]