饮用水中壬基酚及其前体物的分布特性  

Distribution Characteristics of Nonylphenol and Its Precursors, Nonylphenol Ethoxylates in Drinking Water of A City

作　　者：周鸿[1] 张晓健[1] 胡建英[2] 金芬[2] 林爱武 樊康平 王占生[1] 

机构地区：[1]清华大学环境科学与工程系,北京100084 [2]北京大学环境学院,北京100083 [3]北京自来水集团有限公司水质监测中心,北京100081

出　　处：《环境与健康杂志》2004年第5期288-290,共3页Journal of Environment and Health

摘　　要：目的调查具有雌激素作用的内分泌干扰物(EDCs)壬基酚(NP)及其在环境中的前体物非离子表面活性剂壬基酚聚氧乙烯醚(NPEOs)在某市饮用水中的分布特点。方法于2002年丰水期和枯水期采集某市饮用水,采用LC-MS法测定水中的NPEOs(聚合度n>2)浓度,GC-MS法测定水中的NP1EO、NP2EO和NP浓度。结果不同原水中的NPEOs浓度(n=5～15)为0.210～3.355μg/L,不同聚合度NPEOs的浓度不呈现高斯分布;NP的浓度为0.010～0.040μg/L,低于推荐的环境标准值(1μg/L)。管网水中不同聚合度NPEOs分布与原水相似。结论该市主要水源已受到一定程度的NPEOs污染;净水工艺对NPEOs及其降解产物NP的控制作用有待进一步研究;虽然目前污染不是很严重,但是严格管理上游工业污水的排放仍然是不容忽视的问题。Objective To investigate the distribution characteristics of nonylphenol(NP), one kind of estrogenic endocrine disrupting chemical and its precursors, nonylphenol ethoxylates(NPEOs), one kind of non,ion surfactants in drinking water of a city. Methods In 2002, surveys on drinking water quality in the city were carried out during low,water and high,water periods. Concentrations of NPEOs(n>2) were detected by LC,MS and contents of NP1EO, NP2EO and NP were detected by GC,MS. Results The results in the present paper showed that contents of NPEOs(n=5-15) were between 0.210-3.355 μg/L and NPEOs of different polymeric number(n) didn't approximate to Gauss distribution. Concentration of NP varied from 0.010-0.040 μg/L, much lower than the commended environmental standard value(1 μg/L). Distribution of NPEOs in tap water was similar to that in source water. Conclusion Either surface water or groundwater source are contaminated by NPEOs to some extent. Further studies are necessary about control of NPEOs and NP by water treatment processes. Although recent contamination isn't serious, it is still important to manage the discharge of upstream wastewater and enhance the protection of water source.

关 键 词：水污染 内分泌干扰物 壬基酚 壬基酚聚氧乙烯醚 

分 类 号：R123.5[医药卫生—环境卫生学]