辽河干流河岸带土壤中多环芳烃的污染特征与生态风险评价研究  

ANALYSIS OF THE CONTAMINATION CHARACTERISITCS AND THE ECO-RISK ASSESSMENT OF PAHs IN RIPARIAN SOILS FROM LIAOHE RIVER

作　　者：郭凡嫡[1] 潘俊[2] 孙丽娜[3] 罗庆[3] 胡筱敏[1] GUO Fan-di;PAN Jun;SUN Li-na;LUO Qing;HU Xiao-min(School of Resource ＆ Civil Engineering,Northeastern University,Shenyang 110819,China;School of Municipal and Environmental Engineering,Shenyang Jianzhu University,Shenyang 110168,China;Key Laboratory of Eco-Restoration of Regional Contaminated Environment,MOE,Shenyang University,Shenyang 110044,China)

机构地区：[1]东北大学资源与土木工程学院,沈阳110819 [2]沈阳建筑大学市政与环境工程学院,沈阳110168 [3]沈阳大学区域污染环境生态修复教育部重点实验室,沈阳110044

出　　处：《环境工程》2018年第7期155-160,共6页Environmental Engineering

基　　金：国家水体污染控制与治理科技重大专项"辽河保护区水生态建设综合示范(2012ZX07202004)"

摘　　要：为研究辽河干流河岸带土壤中多环芳烃的污染特征,于2013年10月在辽河干流采集了30个河岸带表层土壤样品,测定了土壤中16种优控PAHs的含量。结果表明:辽河干流河岸带土壤中PAHs含量为7.68~44.61μg/kg,平均值为15.96μg/kg,PAHs组成以3、4、5环为主。与国内外的土壤环境质量标准以及土壤实际污染状况相比,辽河干流河岸带土壤中PAHs处于较轻污染。PAHs分子特征值表明,辽河干流河岸带土壤中PAHs的污染主要来源于石油和燃烧两类综合来源。基于物种敏感度分布模型(SSD)的生态风险评价结果表明:辽河流域水体部分监测断面河岸带土壤中8种多环芳烃污染物存在较高的联合生态风险。In order to study the pollution characteristics of polycyclic aromatic hydrocarbons in the soil of the riparian zone of Liaohe River,in October 2013,30 riparian surface soil samples were collected from the main stream of Liaohe River,and the content of 16 kinds of PAHs in soil were determined. The results showed that the content of PAHs in the riparian soil of Liaohe River was 7. 68 - 44. 61 μg/kg,the average value was 96 μg/kg,and PAHs were mainly composed of 3,4 and 5 ring-based.Compared with the soil environmental quality standard and soil actual pollution condition,the PAHs pollution in the riparian zone of Liaohe River was in the lighter pollution level,but it cauldn＇t be neglected. The PAHs molecular eigenvalues indicated that the pollution of PAHs in the riparian soil of Liaohe River mainly originated from oil and combustion. The evaluation result of quality benchmarking method and quality standard method showed that there was no serious PAHs ecological risk in the soil of riparian zone of Liaohe River.

关 键 词：辽河 河岸带 土壤 多环芳烃 污染特征 生态风险 

分 类 号：X53[环境科学与工程—环境工程] X825