长江三角洲典型农用地土壤多环芳烃的空间分布及源解析——以华东某地区为例  

The spatial distribution and source apportionment of polycyclic aromatic hydrocarbons(PAHs) in typical farmland soil of the Yangtze River Delta:A case study from some region in east China

作　　者：王瑶[1,2] 李金柱[1,2] 何中发[1,2] 王寒梅[1,2] 温晓华[1,2] 

机构地区：[1]上海市地质调查研究院,上海200072 [2]国土资源部上海资源环境监督检测中心,上海200072

出　　处：《上海国土资源》2016年第1期82-85,共4页Shanghai Land & Resources

基　　金：上海市科学技术委员会科研计划项目"工业场地污染综合评估及复合污染土壤修复集成技术研究与示范应用"(14231200500);上海市科学技术委员会科研计划项目"场地用地规划适宜性评估方法研究与应用"(14231200504);中国地质调查局土地质量地球化学调查评价项目"上海市典型地区土地质量地球化学评价示范"(12120113001900)

摘　　要：为研究长江三角洲典型农用地土壤多环芳烃的组成及来源,系统采集华东某地区农用地表层土壤样77个,对16种优先控制的多环芳烃（PAHs）单体含量进行测定。结果表明：研究区农用地土壤中Σ16PAHs浓度范围为18.60~1278.67μg/kg,平均浓度为233.57μg/kg;PAHs组成以2环至4环的中低环组分为主,占85.05%;同分异构体比值法和主成分分析法显示研究区农用地土壤中多环芳烃主要来源于石油泄漏及煤与生物质燃烧。To analyze the composition and source of polycyclic aromatic hydrocarbons（Σ16PAHs） in typical farmland soil of the Yangtze River Delta,China,a total of 77 farmland soil samples were collected in the study area and analyzed.Results showed that the total content of Σ16PAHs varied in the range from 18.60~1278.67μg/kg while the average concentration was 233.57μg/kg.The 2-ring,3-ring and 4-ring PAHs contributed to the total content of Σ16PAHs,which accounted for 85.05% of the total mass.In addition,both the diagnostic ratios and principal component analysis indicated that the petroleum origin and coal/biomass burning were major sources of PAHs for the study area.

关 键 词：土壤地球化学 农用地 有机污染 多环芳烃 空间分布 源解析 

分 类 号：X142[环境科学与工程—环境科学]