安全与环境工程2024，Vol.31Issue(6)：225-234,10.DOI:10.13578/j.cnki.issn.1671-1556.20231284
我国中部地区典型人工水库多环芳烃空间分布特征、来源解析与风险评价
Distribution characteristics,source diagnosis and risk assessment of polycyclic aromatic hydrocarbons in a typical artificial reservoir in central China
摘要
Abstract
Zhanghe Reservoir,a typical artificial reservoir in central China,is an important drinking water source.In recent years,with the development of industrialization and urbanization,especially the mining of local coal mines,polycyclic aromatic hydrocarbons(PAHs)pollution may pose a threat to drinking water quality.In this research,we determined the concentrations of 16 priority PAHs in the water and sediment of reservoir and analyzed the composition characteristics,spatial distribution,source diagnosis and risk assessment of PAHs.The results show that the concentrations(average)of ∑16PAHs in water and sediment are 69.6～509 ng/L[(142±89.4)ng/L)],and 5.90～399 ng/g[(205±104)ng/g],respectively.Human activities influence the spatial distribution of PAHs concentration,which is higher at sites closer to the reservoir shore.The PAHs in water are mainly composed of 2～3 rings,while the PAHs in sediment are mainly made up of 4～6 rings.We used characteristic ratio method and principal component analysis-multi-linear regression(PCA-MLR)method to analyze the source of PAHs.The results show that the low-temperature combustion source and oil source are the main source of PAHs in the reservoir water,and the sediment is affected by common influence of the traffic emission source and coal and biomass burning source.Potential ecological risks indicate that there is no potential ecological risk of PAHs,except at 2 sites at the east side of the reservoir.And lifelong carcinogenic risk(ILCR)results range from 10-6≤∑ILCRs≤10-4 within acceptable ranges.关键词
多环芳烃/漳河水库/源解析/风险评价/饮用水安全Key words
PAHs/Zhanghe Reservoir/source diagnosis/risk assessment/drinking water safety分类
资源环境引用本文复制引用
张植文,杨丹,李朋,宗维,石明明,梁莉莉,邢新丽,祁士华..我国中部地区典型人工水库多环芳烃空间分布特征、来源解析与风险评价[J].安全与环境工程,2024,31(6):225-234,10.基金项目
湖北省地质勘查基金项目([2022]17) （[2022]17）
长江生态环境保护修复联合研究项目(二期)(2022-LHYJ-02-0506-01) （二期）
