长三角一体化示范区青浦区水环境中22种PPCPs的多介质分布特征及风险评估  

Multimedia Distribution Characteristics and Risk Assessment of 22 PPCPs in the Water Environment of Qingpu District, Yangtze River Delta Demonstration Area

作　　者：张智博 段艳平 沈嘉豪 俞文韬 罗鹏程 涂耀仁 高峻 ZHANG Zhi-bo;DUAN Yan-ping;SHEN Jia-hao;YU Wen-tao;LUO Peng-cheng;TU Yao-ren;GAO Jun(School of Environmental and Geographical Sciences,Shanghai Normal University,Shanghai 200234,China;Yangtze River Delta Urban Wetland Ecosystem National Field Observation and Research Station,Shanghai 200234,China)

机构地区：[1]上海师范大学环境与地理科学学院,上海200234 [2]上海长三角城市湿地生态系统国家野外科学观测研究站,上海200234

出　　处：《环境科学》2022年第1期349-362,共14页Environmental Science

基　　金：国家社会科学基金重大项目(17ZDA058);国家自然科学基金项目(42077175,41601514);上海市自然科学基金项目(19ZR1459300);上海市国际合作项目(21230712100)。

摘　　要：采集了长三角一体化示范区青浦区(包括太浦河、金泽水库周边和青西郊野公园)的25个采样点的50个表层水体和沉积物样品,利用高效液相色谱串联质谱(HPLC/MS-MS)分析了样品中的22种药物与个人护理品(PPCPs),详细分析了研究区域目标PPCPs的分布特征、来源和影响因素,并利用商值法对目标PPCPs的生态风险和健康风险进行评价.结果表明,青浦区25个采样点中表层水和沉积物中共检测出19种PPCPs,总量均值范围分别为0.06~178.67 ng·L^(-1)和0.07~37.68 ng·g^(-1),其中表层水中以磺胺氯哒嗪(SCP)的均值最高,为129.54 ng·L^(-1),沉积物中以磺胺甲噁唑(SMX)均值最高,为70.62 ng·g^(-1);PPCPs总量的空间分布情况呈:青西郊野公园>金泽水库周边>太浦河流域的趋势;主成分分析显示主要污染来源为养殖业兽用抗生素以及生活污水的排放;lgK_(oc)和lgK_(d)之间具有显著相关性(P<0.05),表明沉积物中有机碳对目标PPCPs在水和沉积物中的分配起重要作用;生态风险评价结果显示表层水体中杀菌剂(TCC和TCS)对不同营养级的水生生物均表现出中度风险,青西郊野公园和金泽水库周边分别是表层水和沉积物中PPCPs生态风险最高区域;通过饮用途径暴露的各年龄段人群的健康风险商值(HQ)均小于1,但随着PPCPs的持续排放和积累,环境中PPCPs的污染管控仍需引起足够的重视.In this study, 50 surface water and sediment samples were collected from 25 sampling points in Qingpu District(including Taipu River basin, Jinze Reservoir, and Qingxi country park) in the Yangtze River Delta integration demonstration area, and 22 pharmaceuticals and personal care products(PPCPs) in the samples were analyzed using high-performance liquid chromatography tandem mass spectrometry(HPLC/MS-MS). The distribution characteristics, sources, and influencing factors of targeted PPCPs in the study area were studied in detail. The ecological and health risks of the target PPCPs were evaluated using the quotients method. The results showed that a total of 19 PPCPs were detected in the surface water and sediment samples from 25 sampling points in Qingpu District, with total concentrations ranging from 0.06 to 178.67 ng·L^(-1)and 0.07 to 37.68 ng·g^(-1), respectively. The average value of sulfachloropyridazine(SCP) in the surface water was the highest with a concentration of 129.54 ng·L^(-1), whereas the average value of sulfamethoxazole(SMX) in the sediment was the highest with a concentration of 70.62 ng·g^(-1). The spatial distribution of the total amount of PPCPs showed a trend of Qingxi country park>Jinze Reservoir>Taipu River basin. Principal component analysis showed that the main sources of pollution were animal antibiotics used in aquaculture and the discharge of domestic sewage. There was a significant correlation between lg K;and lg K;(P<0.05), indicating that the organic carbon plays an important role in the distribution of the target PPCPs in water and sediments. The ecological risk assessment results revealed that the fungicides(TCC and TCS) in the surface waters showed a moderate risk to aquatic organisms of different trophic levels. The Qingxi country park and Jinze Reservoir were the regions with the highest ecological risks of PPCPs in surface water and sediment. The health risk entropy(HQ) of people of all age groups exposed through drinking was less than 1;however, with the continuous emi

关 键 词：长三角 药物与个人护理品(PPCPs) 分布特征 来源分析 风险评价 

分 类 号：X52[环境科学与工程—环境工程]