摘要
为研究北运河河水、药品和个人护理品(pharmaceuticals and personal care products,PPCPs)的污染特征和生态风险,测定了北运河通州段旱季和雨季5个河水水样和43个地下水样中13种PPCPs的质量浓度,并采用风险熵(RQ)法对水体中PPCPs进行了生态风险评价。结果表明:除SMM(磺胺间甲氧嘧啶)和CAP(氯霉素)外,其余11种PPCPs在不同季节、不同位置的河水和地下水中均有检出,其中:SMZ(磺胺二甲嘧啶)质量浓度最高达1373.1ng/L,是研究区水体中的特征污染物;地下水污染物检出率低于河水但其质量浓度略高于河水,并且污染物质量浓度随离河距离增加而下降;地下水中大部分污染物质量浓度雨季大于旱季,并且承压水中污染物质量浓度小于潜水。由风险熵法计算可得,除IBU(布洛芬)的生态风险为高风险外,其余污染物在不同时空条件下对研究区生态风险较低。
The contamination of 13 PPCPs(pharmaceuticals and personal care products)were analyzed in 5 river samples and 43 groundwater samples using RQ model to evaluate the potential risk during dry and rainy season to investigate the pollution characteristics and ecological risk of PPCPs in Beiyun river and groundwater of the North Canal.The results revealed that 11 out of the 13 target PPCPs were detected in Beiyun river and groundwater except for SMM(Sulfamonomethoxine)and CAP(Chloramphenicol),SMZ(Sulfamethazine)was the dominant contaminant with concentrations up to 1373.1 ng/L.Concentrations of PPCPs were higher in the groundwater than river(with a lower detection frequencies),and and the mass concentration of pollutants decreases as the distance from the river increases.Concentrations of PPCPs were higher in confined aquifer than unconfined aquifer;total concentration of PPCPs in wet season was significantly higher than dry season.The results of the risk assessment indicated that IBU(Ibuprofen)may pose high risks to the ecological environment while other PPCPs were found to be of medium or low ecological risk in the study area.
作者
王博欣
李炳华
张大胜
张世伟
霍丽涛
王靖
WANG Boxin;LI Binghua;ZHANG Dasheng;ZHANG Shiwei;HUO Litao;WANG Jing(Hebei Provincial Institute of Water Science,Shijiazhuang 050051,China;Beijing Water Science and Technology Institute,Beijing 100000,China)
出处
《南水北调与水利科技（中英文）》
CAS
北大核心
2020年第6期138-147,共10页
South-to-North Water Transfers and Water Science & Technology
基金
国家自然科学基金(41730749)
中丹国际合作项目
河北省水利科学研究院中德合作项目。
关键词
北运河
河水
地下水
地下水中药品和个人护理品
污染特征
风险评价
North Canal
river
groundwater
pharmaceuticals and personal care product
pollution characteristic
risk assessment
