上海市交通主干道沿线大气颗粒物及其重金属含量分布特征  

Distribution Characteristics about Atmospheric Particulate and Content of Heavy Metal along Traffic Mainliner in Shanghai

作　　者：翟立群[1] 郑祥民[1] 周立旻[1] 黄东锋[1] 王永杰[1] 艾东升[1] 

机构地区：[1]华东师范大学教育部地理信息科学重点实验室,上海200062

出　　处：《城市环境与城市生态》2010年第1期10-13,共4页Urban Environment & Urban Ecology

基　　金：上海市科委"上海近地表大气颗粒物重金属污染特征研究"项目(08DZ1207900)

摘　　要：采集了上海市交通主干道金沙江路距路肩不同距离(近站位、远站位)近地表大气颗粒物样品24个,使用全谱直流电感耦合等离子光谱仪测定其As、Cr、Cu、Pb、Mn、N i等重金属元素浓度。结果表明,大气颗粒物的质量浓度及其重金属绝对浓度在每个采样点的近站位均高于远站位,而部分大气颗粒物的重金属相对浓度表现为远站位高于近站位;金沙江路沿线由外环到内环方向,大气颗粒物的质量浓度有明显降低的趋势,而大气颗粒物重金属含量具有明显的升高趋势,这与机动车的行驶速度是相关的。Along a traffic mainline, Jinshajiang Road 24 atmospheric particulate samples were collected, and the con- centration of heavy metal （As, Cr, Cu, Pb, Mn, Ni） were measured by ICP-OES. The results showed that：（ 1 ） The mass concentration of particulate matter at the sampling close stations were higher than far stations, while the relative concentration of heavy metals at far stations was higher than the close stations. （2）At the Jinshajiang Road along the direction from the Outer Ring to the Inner Ring, the concentration of particulate significantly decreased while the concentration of heavy metal pointed to an increasing trend, that maybe related to the vehicle＇ s speed.

关 键 词：大气颗粒物 重金属 交通主干道 上海 

分 类 号：X513[环境科学与工程—环境工程]