摘要
为探究新污染物有机磷酸酯(OPEs)在上海市龙头水中的赋存特征及其健康风险水平,基于青草沙水库、陈行水库、东风西沙水库和黄浦江上游四大水源地的供水范围,选定了覆盖上海市所有行政区的52个大型商场作为龙头水采样点,利用固相萃取和气相色谱-三重四级杆质谱法测定了所采集商场龙头水中的8种OPEs,包括3种氯代OPEs、2种烷基OPEs和3种芳基OPEs,并在此基础上对检出频率和检出浓度较高的物质开展了健康风险评价.结果显示有6种OPEs普遍检出,2个季节所测8种OPEs(ΣOPEs)浓度平均值分别为64.3 ng·L^(-1)和60.5 ng·L^(-1);不同类型OPEs在龙头水中的浓度水平及检出率排序为:氯代OPEs>烷基OPEs>芳基OPEs;从水源地角度看,以黄浦江上游为水源的龙头水中ρ(OPEs)平均值最高(夏季为132 ng·L^(-1),冬季为170 ng·L^(-1)),以东风西沙水库为水源的龙头水中ρ(OPEs)平均值最低(夏季为25.1 ng·L^(-1),冬季为6.62 ng·L^(-1));只有氯代OPEs有显著季节差异,且夏季的浓度平均值(62.1 ng·L^(-1))高于冬季(53.9 ng·L^(-1));基于OPEs参考剂量,通过饮水暴露这一途径对各年龄段人群虽无健康风险,但相比其他国家和地区,上海市龙头水的OPEs暴露量偏高,需要进一步重视与研究.
To explore the occurrence characteristics and health risk levels of the new pollutants organophosphate esters(OPEs)in tap water in Shanghai,based on the water supply areas of the Qingcaosha Reservoir,Chenhang Reservoir,Dongfeng Xisha Reservoir,and Upstream Huangpu River water sources,a total of 52 large shopping malls in Shanghai were selected as tap water sampling sites.Solid phase extraction and gas chromatography-triple quadrupole mass spectrometry were used to determine eight types of OPEs in tap water from shopping malls,including three types of chlorinated OPEs,two types of alkyl OPEs,and three types of aryl OPEs.On this basis,the health risk assessment of the substances with high detection frequency and concentration was carried out.The results showed that six types of OPEs were generally detected,and the average levels of eight types of OPEs in tap water collected in summer and winter were 64.3 ng·L^(-1) and 60.5 ng·L^(-1),respectively.The concentration levels and detection rates of different types of OPEs in tap water followed the order of:chlorinated OPEs>alkyl OPEs>aryl OPEs.From the perspective of water sources,the average concentration of OPEs in tap water with Upstream Huangpu River water sources as the water source was the highest(132 ng·L^(-1) in summer and 170 ng·L^(-1) in winter),and OPEs in tap water with Dongfeng Xisha Reservoir as the water source was the lowest(25.1 ng·L^(-1) in summer and 6.62 ng·L^(-1) in winter).The average concentration of chlorinated OPEs in summer(62.1 ng·L^(-1))was higher than that in winter(53.9 ng·L^(-1)).Based on the reference dose of OPEs,there were no health risks to people of all ages through drinking water exposure.However,the OPE exposure in tap water of Shanghai was higher compared with that of other countries and regions,which requires further attention and research.
作者
马雯萱
于雅琳
常家郡
仇雁翎
张华
朱志良
王锐
MA Wen-xuan;YU Ya-lin;CHANG Jia-jun;QIU Yan-ling;ZHANG Hua;ZHU Zhi-liang;WANG Rui(Key Laboratory of Yangtze River Water Environment(Ministry of Education),College of Environmental Science and Engineering,Tongji University,Shanghai 200092,China;Shanghai Institute of Pollution Control and Ecological Security,Shanghai 200092,China;Sinovac(Dalian)Vaccine Technology Co.,Ltd.,Dalian 116000,China;State Key Laboratory of Pollution Control and Resource Reuse,College of Environmental Science and Engineering,Tongji University,Shanghai 200092,China)
出处
《环境科学》
EI
CAS
CSCD
北大核心
2024年第10期6096-6103,共8页
Environmental Science
基金
国家重点研发计划项目(2021YFC3200801)
国家自然科学基金项目(21777124)。
