污灌区土壤、地下水、蔬菜的致突变性研究

The study on the Mutagenicity of Soil,Ground water and Vegetable in Wastewater Irrigation Area

为探讨灌田用污水中致突物质是否在污灌区土壤中蓄积并在环境因素之间迁移，经食物链对人体健康产生潜在性危害，我们以天津市有３０余年污灌史的灌区土壤、深层地下水及蔬菜为研究对象，通过小鼠骨髓细胞微核试验，对其有机提取物的致突变性进行了检测。结果均呈阳性。说明污灌区土壤、地下水及芥菜中均含有致突变性物质蓄积。提示污灌区某些有机污染物可通过食物链进入居民体内。

This paper studied on the mutagenicity of organic extracts of soil,groun water and vegetable (mustard rutabaga).The samples were obtained from the area which had been irrigated by wastewater for more than thirty years.The mutagenicity of the samples were detected using the mice bone marrow micronucleu test.The result showed that the soil,ground water and mustard rutabaga in the wastewater irrigation area were positive.It suggested that organic mutagenic compounds existed in this samples.This results indicated that some organic mutagenic compounds might enter the human body from food chains and induced some possible hazard effects on human heing.