河南省地表水源中PPCPs分布及生态风险评价

新兴污染物药物及个人护理品（pharmaceuticals and personal care products，PPCPs）在水环境中的赋存会对水生生物产生不良影响，饮水水源地PPCPs的存在更可能对人类健康造成危害.对河南省5个代表性饮用水水源中PPCPs的污染赋存进行了采样调查，并进行了相关的溯源分析和生态风险评价.结果表明，20种PPCPs在采样点检出累积浓度范围为24.2~317.6 ng·L^-1.其中，咖啡因（CFI）最高浓度达186.4 ng·L^-1，其次为磺胺甲噁唑（SMX）和氧氟沙星（OFC），最高检出浓度分别为70.8 ng·L^-1和24.2 ng·L^-1.黑岗口水源地PPCPs污染水平高于其他水源地.通过不稳定化合物CFI与稳定化合物卡马西平（CBZ）浓度比值分析了PPCPs来源，水源地上游水体受污水排污污染以及水源地周边分散式生活污水面源污染可能是污染物主要来源.风险商（RQ）计算结果表明，各水源地检出的PPCPs对藻类呈现出中等到高风险，对无脊椎动物和鱼类呈现出低风险到中等风险，需要对相关的污染控制引起重视.

Distribution and Ecological Risk Assessment of PPCPs in Drinking Water Sources of Henan Province

The occurrence of emerging pollutants pharmaceuticals and personal care products (PPCPs) in aquatic environments has potential adverse effects on aquatic organisms, and the presence of PPCPs in drinking water sources is very likely to cause harm to human health. The PPCPs pollution in five typical drinking water sources in Henan province was investigated. Moreover, the source of pollutants was analyzed and the relevant ecological risks were evaluated. The results showed that the cumulative concentrations of 20 PPCPs at different sampling sites ranged from 24.2 to 317.6 ng·L^-1. Caffeine (CFI) was the highest level contaminant, with the concentration up to 186.4 ng·L^-1, followed by sulfamethoxazole (SMX) and ofloxacin (OFC), with detected concentrations up to 70.8 ng·L^-1 and 24.2 ng·L^-1, respectively. The pollution of PPCPs in Heigangkou drinking water sources was higher than those of other drinking water sources. The comparation of the labile indicator CFI and the conservative indicator carbamazepine (CBZ) concentrations implies that the pollutions from the upstream water and around scattered domestic sewage might be responsible for the PPCPs present in these drinking water sources. The risk quotient (RQ) calculation results indicated that the detected PPCPs in 5 drinking water sources have moderate to high risks to algae, while low to moderate risks to invertebrates and fish. Therefore, attention should be paid to relevant pollution control.