[上海自来水中有机磷酸酯类物质的出现特征及健康风险评估]。

Q2 Environmental Science
Wen-Xuan Ma, Ya-Lin Yu, Jia-Jun Chang, Yan-Ling Qiu, Hua Zhang, Zhi-Liang Zhu, Rui Wang
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引用次数: 0

摘要

为探讨上海地区自来水中新污染物有机磷酸酯(OPEs)的发生特征和健康风险水平以青草沙水库、陈行水库、东风西沙水库和黄浦江上游水源地为研究对象,选取上海市52家大型商场作为自来水采样点。采用固相萃取和气相色谱-三重四极杆质谱法测定了商场自来水中的 8 种 OPE,包括 3 种氯化 OPE、2 种烷基 OPE 和 3 种芳基 OPE。在此基础上,对检测频率和浓度较高的物质进行了健康风险评估。结果表明,在夏季和冬季采集的自来水中,一般都能检测到六种 OPE,八种 OPE 的平均含量分别为 64.3 ng-L-1 和 60.5 ng-L-1。自来水中各类 OPE 的浓度水平和检出率依次为:氯化 OPE、烷基 OPE、芳基 OPE。从水源来看,以黄浦江上游水源为水源的自来水中 OPEs 平均浓度最高(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自来水中 OPEs 平均浓度最低(夏季为 25.1 ng-L-1,冬季为 6.62 ng-L-1)。夏季氯化 OPE 的平均浓度(62.1 ng-L-1)高于冬季(53.1 ng-L-1)。高于冬季的平均值(53.9 ng-L-1)。根据 OPE 的参考剂量,各年龄段的人从饮用水中摄入 OPE 不会对健康造成危害。然而,与其他国家和地区相比,上海自来水中的 OPE 暴露量较高,需要进一步关注和研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
[Occurrence Characteristics and Health Risk Assessment of Organophosphate Esters in Tap Water of Shanghai].

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.

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来源期刊
环境科学
环境科学 Environmental Science-Environmental Science (all)
CiteScore
4.40
自引率
0.00%
发文量
15329
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