上海北部郊区土壤多环芳烃含量及来源分析  

Concentration and Sources of Polycyclic Aromatic Hydrocarbons in Surface Soil of North Suburban Shanghai,China

作　　者：孙小静[1] 石纯 许世远[1] 潘飞飞[3] 王培华[3] 马剑丽[3] 刘鹂[3] 

机构地区：[1]华东师范大学资源与环境科学学院 [2]上海市宝山区环境保护局,上海201900 [3]上海市宝山区环境监测站,上海201940

出　　处：《环境科学研究》2008年第4期140-144,共5页Research of Environmental Sciences

基　　金：国家自然科学重点基金项目(40730526);青年基金项目(70703010);上海市宝山区科技发展基金项目(07-D-1);上海市宝山区2007年度环保专项基金项目

摘　　要：为研究上海北部郊区农田土壤的多环芳烃（PAHs）含量特征,野外采集表层土壤样品,通过室内分析方法测定了土壤中16种PAHs的含量.结果表明,在研究区土壤中，16种优控PAHs总含量（ω（PAH16））为203.8-6 753.9 ng/g, 平均值为1 172.7 ng/g. 相对于荷兰的土壤修复目标值而言，上海北部郊区部分地块农田表层土壤PAHs含量偏高.说明研究区农田土壤已经受到了一定程度的PAHs污染.根据不同环数PAHs的相对丰度法和PAHs组分的浓度比值法判断，上海北部郊区表层土壤中的PAHs主要来源于石油和煤等化石燃料的高温燃烧及汽车尾气排放等燃烧源.In order to study the concentration of polycyclic aromatic hydrocarbons （PAHs） in surface soil of north suburban Shanghai, soils were sampled from the field and the concentrations of 16 PAHs in them were analyzed. It showed that the 16 PAHs defined by the U.S. Environmental Protection Agency were all detected, and concentrations of PAH16 were from 203.8 to 6 753.9 ng/g, with average of 1 172.7 ng/g. The concentrations of PAHs in some regions under research were higher than the target values for soil remediation of the Netherlands, which means that the farm soil of the region were partly polluted by PAHs. Based on the abound degree of PAHs with different benzene rings and the ratio of different PAHs components, the PAHs in surface soil of the region under research are mainly from the pyrogenic sources including combustion of petroleum and coal and traffic exhaust emission.

关 键 词：土壤 多环芳烃(PAHs) 燃烧源 上海北部郊区 

分 类 号：X53[环境科学与工程—环境工程]