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为了研究游离余氯的致突变性 ,选用近年来广泛用于检测环境污染物致突变性的蚕豆根尖微核技术 ,对不同浓度的游离余氯的致突变性进行了对比实验研究。研究结果表明 :游离余氯浓度在 0 .0 2～ 0 .80 mg/ L 范围内均具有致突变性。游离余氯的致突变性随着浓度的升高而逐渐增强 ,呈明显的剂量反应关系 (tr=4.10 2 ,P<0 .0 2 5 )。研究结果提示 :游离余氯具有致突变性 ,它的致突变性应引起人们的高度重视
In order to study the mutagenicity of free residual chlorine, we selected the Vicia faba root tip micronucleus technique, which is widely used to detect the mutagenicity of environmental pollutants in recent years, and compared the mutagenicity of free residual chlorine with different concentrations. The results show that: the free residual chlorine concentration in the range of 0.2 ~ 0.80 mg / L have mutagenicity. The mutagenicity of free residual chlorine gradually increased with the increase of concentration, showing a dose-response relationship (tr = 4.10 2, P <0.05). The results suggest that free residual chlorine has mutagenicity and its mutagenicity should attract people’s attention