摘要
在到人的健康的饮用水的有机污染物的潜在的伤害广泛地集中于在世界上；有 genotoxic 物质的越来越多的污染物质被释放进水生环境。水来源样品从南京城市的 7 个不同地区被收集。从饮用水来源的器官的摘录的潜在的 genotoxicity 在人的外部淋巴细胞借助于彗星试金被调查。结果证明从所有水来源样品的所有器官的摘录能在不同层次导致人的外部血淋巴细胞的脱氧核糖核酸损坏。重要差别(P 【
0.01 ) 当时，被观察与溶剂控制相比。脱氧核糖核酸损坏随原来的水来源的剂量的增加增加了。脱氧核糖核酸损坏的重要差别在不同饮用水来源被观察，在 100 ×的剂量由多重比较分析出现；脱氧核糖核酸损坏的度由 Hushu 供水系统对待(在镇水平) 是最严肃的，任意的单位(AU ) 然而，是 141.62 ± 6 .96 Shangyuanmen 供水系统的(在城市水平) 仅仅是 109.64 ± 2 .97。分析也表明镇的水来源的 genotoxicity 比城市的高。结果证明彗星试金能成功地被用于监视饮用水来源的节目的 genotoxicity。
The potential harm of organic pollutants in drinking water to human health is widely focused on in the wodd; more and more pollutants with genotoxic substances are released into the aquatic environment. Water source samples were collected from 7 different localities of Nanjing City. The potential genotoxicity of organic extracts from drinking water sources were investigated by means of the comet assay in human peripheral lymphocytes. The results showed that all the organic extracts from all the water source samples could induce DNA damages of human peripheral blood lymphocytes at different levels. A significant difference （P 〈 0.01） was observed when compared with the solvent control, The DNA damage increased with the increase of the dosage of the original water source. Significant differences of DNA damage were observed in different drinking water sources, as shown by the multiple comparisons analysis at the dosage of 100x; the degree of DNA damage treated by Hushu waterworks （at town level） was the most serious, the arbitrary units （AU） was 141.62±6.96, however, that of Shangyuanmen waterworks （at city level） was only 109.64±2.97. The analysis also revealed that the genotoxicity of town＇s water sources was higher than that of the city. The results demonstrated that the comet assay can be successfully applied to the genotoxicity monitoring programs of drinking water sources.
关键词
饮用水源
生殖毒性
血液淋巴系统
环境保护
comet assay
drinking water sources
genotoxicity
human peripheral blood lymphocyte
