某市自来水与原水中环境内分泌干扰物的调查  

Investigation of Endocrine Disrupting Chemicals in Source Water and Tap Water in a City

作　　者：谭佑铭[1] 刘燕群[2] 宿飞[3] 胡凯[3] 冯易[1] 

机构地区：[1]上海交通大学公共卫生学院,上海200025 [2]江汉大学医学和生命科学院,湖北武汉430056 [3]上海市黄浦区疾病预防控制中心环境卫生科,上海200011

出　　处：《环境与健康杂志》2008年第3期232-235,共4页Journal of Environment and Health

基　　金：上海市高等学校科学技术发展基金资助项目(03BK14)

摘　　要：目的了解某市自来水以及原水中环境内分泌干扰物(endocrine disruptingchemicals,EDCs)污染的现状。方法于2006年4月至2007年2月,采集某市的自来水源水以及末梢水样品15件,每件20 L。水样经XAD-4树脂吸附处理后,用丙酮-二氯甲烷洗脱。洗脱液经浓缩后,采用气相色谱-质谱(GC-MS)联机检测。结果3个水厂的15件水样中共检测出78种有机污染物,主要包括邻苯二甲酸酯类、酚类、苯系物和烷烃类等。所有水样中均检出酞酸酯类化合物,其中双(2-乙基己基)邻苯二甲酸酯、邻苯二甲酸二丁酯和五氯酚为可疑EDCs,其浓度范围分别为0.004 75～4.50μg/L、0.002 25～2.39μg/L和0.727μg/L。结论该市的自来水原水和末梢水中存在较多的有机污染物,其中主要的EDCs为酞酸酯类和酚类化合物。该市饮用水中EDCs污染的变化趋势和健康效应需引起进一步关注。Objective To investigate the endocrine disrupting chemicals contamination in source water and tap water in a city and to provide the scientific data for the water quality inspection, management and water treatment. Methods Fifteen samples of source water and tap water were collected in April 2006 and February, 2007. Extraction of potential EDCs from samples was performed in columns packed with XAD-4 resins by using sohd-phase extraction （SPE）. Each sample was dried under a gentle air stream for 1 h and eluted with a mixture of acetone （20 ml） and dichloromethane （40 ml） for 3 times. The extracts were collected into a glass flask, evaporated under a gentle air stream and suspended again in 0.5 ml dichloromethane. Gas chromatography-mass spectrometry （GC-MS） was used for quantitative or qualitative analysis of the organic pollutants and the optimum conditions were determined. Results Seventy-eight organic pollutants were identified from the water samples. Most of them were phthalates, hydrocarbon, phenol, and benzene. Phthalates were found in all samples. Among them, bis （2-ethylhexyl） phthalate （CAS# 117817）, di-n-butyl phthalate （CAS# 84742）, and pentachlorophenol （CAS# 87865） were regarded as suspected endocrine disrupting chemicals： The concentration of bis-（2-ethylhexyl） phthalate and di-n-butyl phthalate ranged 0.004 75-4.450 μg/L and 0.002 25- 2.39 μg/L, respectivel）,. The concentration of pentachlorophenol was 0.727μg/L. Conclusion The source water and tap water in this city has been seriousl）, polluted by organic poUutants, the main endocrine disrupting chemicals detected in the present investigation are phthalates and pentachlorophenol and the related health effects remain to be studied.

关 键 词：水 内分泌干扰物 有机污染物 

分 类 号：R123.1[医药卫生—环境卫生学] X703[医药卫生—公共卫生与预防医学]