输配水材料中环境雌激素的溶出研究  

Dissolution of Environmental Estrogen in Water Delivery and Distribution Materials

作　　者：张海婧[1] 胡小键[1] ZHANG Hai-jing;HU Xiao-jian(National Institute of Environmental Health,China CDC,Beijing 100021,China)

机构地区：[1]中国疾病预防控制中心环境与健康相关产品安全所,北京100021

出　　处：《中国给水排水》2021年第19期47-52,共6页China Water & Wastewater

基　　金：卫生行业科研专项(201002001)。

摘　　要：针对市场上常见的输配水材料进行了有机溶剂和浸泡水浸泡实验,采用高效液相色谱串联质谱法分析了输配水材料中9种邻苯二甲酸酯和3种双酚类化合物的含量及其溶出量,并考察了浸泡时间对溶出量的影响。结果表明,7种邻苯二甲酸酯和1种双酚类化合物在不同材质的输配水材料中都有不同程度的检出,按照含量多少来划分依次为:邻苯二甲酸二(2-乙基己基)酯(DEHP)>邻苯二甲酸二丁酯(DBP)>双酚A(BPA)>邻苯二甲酸二甲酯(DMP)>邻苯二甲酸二乙酯(DEP)>邻苯二甲酸丁基苄酯(BBP)>邻苯二甲酸二环己酯(DCHP)>邻苯二甲酸二辛酯(DOP),在材质为软PVC、合成橡胶、合成纤维和合成涂料的输配水材料中,上述物质含量相对较高。输配水材料中含量相对较高的邻苯二甲酸二(2-乙基己基)酯、邻苯二甲酸二丁酯和双酚A,在浸泡水中的溶出量也较高。随着浸泡时间的增加,上述物质的溶出量逐渐减少,120 h后低于美国国家卫生基金会(NSF)参考限值。同时证实了材质为软PVC和合成橡胶的输配水材料具有潜在的邻苯二甲酸酯和双酚类化合物的溶出风险,可通过反复冲洗浸泡降低这一风险。The organic solvent and soaking water immersion tests were carried out for common water delivery and distribution materials in the market.The contents and dissolution amounts of 9 phthalates and 3 bisphenol compounds in the water delivery and distribution materials were analyzed by high performance liquid chromatography-tandem mass spectrometry,and the effect of soaking time on the dissolution amounts was investigated.Seven phthalates and one bisphenol compound were detected in different water delivery and distribution materials,and the dissolution amount in descending order was DEHP,DBP,BPA,DMP,DEP,BBP,DCHP and DOP.The contents of the above substances in the water delivery and distribution materials made of soft PVC,synthetic rubber,synthetic fiber and synthetic coating were relatively high.The relatively high contents of DEHP,DBP and BPA in the water delivery and distribution materials also had higher dissolution amounts in the soaking water.With the increase of the soaking time,the dissolution amounts of the above substances gradually decreased,and were lower than the NSF reference limit after 120 h.It was also confirmed that the water delivery and distribution materials made of soft PVC and synthetic rubber had the potential risk of dissolution of phthalates and bisphenol compounds.However,the risk could be reduced by repeated rinsing and soaking.

关 键 词：输配水材料 环境雌激素 邻苯二甲酸酯 双酚A 浸泡水 溶出 

分 类 号：TU991[建筑科学—市政工程]