黄河宁夏段干流PPCPs时空分布特征及生态风险评估  

Spatial and temporal and distribution characteristics of PPCPs and ecological risk assessment in Ningxia section mainstream of the Yellow River

作　　者：周瑞娟 孟江红 张卫红 梁雪媛 于会彬[2] 赵睿智 李青倩 ZHOU Ruijuan;MENG Jianghong;ZHANG Weihong;LIANG Xueyuan;YU Huibin;ZHAO Ruizhi;LI Qingqian(Ecological and Environmental Monitoring Center of Ningxia Hui Autonomous Region;Chinese Research Academy of Environmental Sciences;Ningxia Hui Autonomous Region Key Laboratory for Monitoring and Assessment of Water and Atmospheric Environment Quality)

机构地区：[1]宁夏回族自治区生态环境监测中心 [2]中国环境科学研究院 [3]宁夏水生态与大气环境质量监测评估重点实验室

出　　处：《环境工程技术学报》2025年第2期610-620,共11页Journal of Environmental Engineering Technology

基　　金：宁夏回族自治区重点研发计划项目(2024BEG02003);黄河流域生态保护和高质量发展联合研究城市驻点科技帮扶项目(2022-YRUC-01-050204-011-05);宁夏青年拔尖人才项目(2022077)。

摘　　要：药品和个人护理品(PPCPs)是一系列新污染物的总称,对生态环境和人体健康存在较高风险。为探究PPCPs在高含沙河流中的时空分布特征及生态风险,于2023年4—9月利用液质联用技术连续对55种PPCPs目标物进行监测,探究黄河宁夏段干流中PPCPs的时空分布特征并对其进行风险评价。结果显示:黄河宁夏段干流中共检出5类17种PPCPs〔浓度(34.55~248.08)ng/L〕,包括磺胺类抗生素、喹诺酮类抗生素、大环内酯类抗生素、酰胺醇类抗生素和其他药物;可检出的抗生素以磺胺类抗生素为主〔(10.34±6.04)ng/L〕;PPCPs平均浓度从上游至下游呈现先降低后升高再降低的趋势,4月PPCPs平均浓度〔(159.27±52.17)ng/L〕显著高于其他月份。生态风险评估结果表明,黄河宁夏段水体中PPCPs总体呈现低生态风险,主要污染物生态风险等级存在显著的时间差异。CAF是黄河宁夏段干流水环境中PPCPs的主要组成部分,是联合风险熵值的主要贡献者(贡献率62.14%~76.05%)。未来关于黄河干流PPCPs的监测、管理和预警,应重点关注CAF的浓度变化及溯源。Pharmaceuticals and personal care products(PPCPs)are a collective term for various emerging pollutants that pose potential risks to the ecological environment and human health.To investigate the spatial and temporal distribution characteristics and ecological risks of PPCPs in rivers with high-content sand,we continuously monitored 55 target PPCPs in the mainstream water of the Ningxia section of the Yellow River from April to September 2023,applying liquid chromatography-mass spectrometry(LC-MS)technology.The results showed that a total of 17 PPCPs(34.55-248.08 ng/L)in 5 classes were detected in the Ningxia Section of the Yellow River,including sulfonamides,quinolones,macrolides,amino alcohols and other drugs.The main antibiotics detected were sulfonamides(10.34±6.04 ng/L).The average concentration of PPCPs decreased first,then increased and decreased from upstream to downstream.The average concentration of PPCPs in April was significantly higher than in other months(159.27±52.17 ng/L).The ecological risk assessment results showed that the PPCPs in the Ningxia section of the Yellow River showed low ecological risk.There were significant time differences in the ecological risk levels of major pollutants.CAF was the main component of PPCPs and the main contributor of RQsum(62.14%-76.05%)in the water environment of Ningxia mainstream of the Yellow River.In the future,the monitoring,management and early warning of PPCPs in the Yellow River should focus on the CAF concentration variation and its sources.

关 键 词：黄河宁夏段干流 PPCPS 新污染物 咖啡因 生态风险评估 

分 类 号：X832[环境科学与工程—环境工程] X826