| 摘要: |
| 采用美国环保署(US EPA)推荐的健康风险评价模型，对乌鲁木齐市饮用水源地中的邻苯二甲酸酯（PAEs）通过饮水途径致人体健康危害风险进行初步评价。结果显示，乌鲁木齐市地表饮用水源地的2种PAEs［邻苯二甲酸（2-乙基己基）酯（DEHP）和邻苯二四酸二丁酯（DBP）］浓度全部达到《地表水环境质量标准》(GB 3838—2002)特定项目标准限值要求，DEHP总检出率达58.3%~100.0%，DBP总检出率达100%，DEHP通过饮水途径引起的致癌和非致癌总风险数量级达10-10 ~10-8,DBP通过饮水途径引起的非致癌风险数量级达10-13 ~10-11。乌鲁木齐市地下饮用水源地的DEHP浓度全部达到《地下水质量标准》(GB/T 14848—2017)中Ⅰ类标准限值要求，总检出率达66.7%~100.0%，通过饮水途径引起的总风险数量级分布中，城市集中式饮用水源地为10-10 ~10-9，县城(区)饮用水源地为10-10~10-8。地表和地下饮用水源地的致癌和非致癌总风险均低于US EPA和国际癌症机构（ICRP）的最大可接受风险水平，并低于瑞典环境保护署、荷兰建设和环境署以及英国皇家协会的最大可接受风险水平，处于Ⅰ级，低风险状态。 |
| 关键词: 饮用水源地 邻苯二甲酸酯 健康风险评价 乌鲁木齐市 |
| DOI： |
| 分类号:X824 |
| 基金项目: |
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| Health Risk Assessment of Phthalate Esters in Drinking Water Source Area in Urumqi City |
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HAN Qin-qin，WANG Tao，SHAO Long-mei，LI Fan1,2
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1.Urumqi City Environmental Monitoring Center Station, Urumqi, Xinjiang 830011, China;2. The Service Center of the Department of Natural Resources of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang 830002, China
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| Abstract: |
| Using the health risk assessment model recommended by the United States Environmental Protection Agency (US EPA) to conduct a preliminary assessment of the risk of human health hazards caused by PAEs in drinking water sources in Urumqi City.The results showed that two kinds of PAEs(DEHP and DBP) in surface drinking water sources in Urumqi all meet the limits set by “Surface Water Environmental Quality Standards” (GB 3838—2002), the total detection rates of DEHP were 58.3%～100.0%, and DBP were 100% detected. The total carcinogenic and non carcinogenic risk of DBP is of the order of 10-10 ～10-8, and the non carcinogenic risk of DBP caused by drinking water is of the order of 10-13 ～10-11.The concentration of one kind of PAEs (DEHP) in the underground drinking water source of Urumqi City all meet the requirements of Class I standard set by “Groundwater Quality Standard” (GB/T 14848—2017), and the total detection rates were 66.7%～100.0%. The total risk order of magnitude distribution is 10-10～10-9 for urban centralized drinking water sources, and 10-10～10-8 for county (district) water sources. The total carcinogenic and non carcinogenic risk of surface drinking water sources and underground drinking water source are lower than the maximum acceptable risk levels of US EPA and ICRP, and are lower than the maximum acceptable risk level for the Swedish Environmental Protection Agency, the Dutch Construction and Environment Agency and the Royal Society of the United Kingdom as well. The risk level is at level I and has a low risk status. |
| Key words: Drinking water source Phthalates Health risk assessment Urumqi City |
