摘要
比较我国居民常用饮水种类自来水、净化水(自来水经净水器过滤)、凉开水(自来水经煮沸后冷却)、纯净水(自来水经以反渗透为主的多重工艺处理)的非挥发性有机物(NOP)污染状况及其致突变活性。结果表明,四种水中检测到的NOP种类分别为自来水39种,净化水40种,凉开水20种,纯净水8种;毛细色谱显示的NOP总丰面积值依次为5.62×109,5.57×109,2.65×109,1.87×109。四种水的移码型及碱基置换型致突变活性依次为:自来水>净化水>凉开水>纯净水,其中自来水在相当1L、2L、4L水量的剂量均为阳性致突变活性,而纯净水在同样的剂量均为阴性。
To determine and compare nonvolatile organic pollutants(NOP) and mutagenic activities from four typical drinking waters i.e., tap water (untreated), filtered water (filtered by houshold activated carbon unit), cold boiled potable water and purified potable water (treated by reverse osmosis unit).(1)the kinds of NOP existed were: 39 in untreated potable water, 40in filtered water, 20 in cold bioled water and 8 in purified water, and their total values showed by capillary chromatograph were 5.62×109,5.57×109,2.65×109,1.87×109 in sequence; (2)Both the shift and alkaline substitute mutaion rates of the NOP extracts from the four waters were in the order of: potable water>filtered water>boiled watr>purified water. The potable water showed positively mutagenic activities at dosages equivalent 1L?2L?4L water, however, the purified water showed all negativity at the same dosages.
出处
《水处理技术》
CAS
CSCD
北大核心
2003年第2期73-77,共5页
Technology of Water Treatment
基金
国家自然科学基金重点资助项目(59838300)
关键词
自来水
净化水
凉开水
纯净水
非挥发性有机物
致突变性
tap water
filtered water
cold boiled potable water
purified potable water
nonvolatile organic pollutants
mutagenic activities
