北京市部分地区土壤和植物中多环芳烃的分布  

Distribution of Polycyclic Aromatic Hydrocarbons in Soil and Foliage in Beijing

作　　者：汤莉莉[1] 牛生杰[1] 朱永官[2] 许潇锋[1] 陈魁[1] 李芳[1] 

机构地区：[1]南京信息工程大学环境科学与工程系,江苏南京210044 [2]中国科学院生态环境研究中心,北京100085

出　　处：《南京气象学院学报》2006年第6期750-755,共6页Journal of Nanjing Institute of Meteorology

基　　金：南京信息工程大学科研基金资助项目(Y511);江苏省教育厅高校自然科学基金资助项目(2535);江苏省教育厅高校自然科学基金重大项目(06KJA17021)

摘　　要：研究了北京市区东部、东南部和西南部不同功能区土壤和绿化植物中多环芳烃(PAHs)的分布特征,讨论了土壤和植物叶片中多环芳烃质量分数的相关性。结果表明:车流量较多的路边土壤PAHs质量分数很高,西城区北京杨叶片中PAHs质量分数较高;相同采样点的土壤与植物叶片中多环芳烃的质量分数相关显著。Polycyclic aromatic hydrocarbons （PAHs） contamination in soil is an increasing problem in many countries, including China. An extensive and systematic survey has been undertaken to evaluate the PAHs contamination of urban soils and foliage at different sites in Beijing. Soil samples and plant leaves collected from campuses of universities, schools and kindergartens, public squares, fallow land and roadsides,were analyzed for 16 PAHs by a GC-MS. The foliage PAHs concentrations ranged from less than 0.080 × 10^-6 to 2. 786 × 10^-6. The highest contaminated soil sample came from roadside. Total organic carbon （TOC） played major roles in the distribution of PAHs. There was a significantly close relationship between ∑ PAHs concentrations of soil and foliage samples at each site.

关 键 词：土壤 植物 多环芳烃 北京市 

分 类 号：X131.3[环境科学与工程—环境科学]