Nonvolatile mutagens in drinking water: production by chlorination and destruction by sulfite.
Nonvolatile mutagens in drinking water: production by chlorination and destruction by sulfite.
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饮用水中的非挥发性诱变剂：通过氯化产生并通过亚硫酸盐破坏。
DOI：
10.1126/science.6985746
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发表时间：
1980
期刊：
影响因子：
56.9
通讯作者：
L. Cole
中科院分区：
文献类型：
--
作者：
A. Cheh;J. Skochdopole;P. Koski;L. Cole
在模拟饮用水处理过程的实验室生产的浓缩水中，通过埃姆斯沙门氏菌试验很容易检测到直接作用的非挥发性诱变剂。这些诱变剂是由氯化过程产生的。用氯胺处理水的诱变活性比用游离氯处理水的诱变活性小。用亚硫酸盐对饮用水进行脱氯处理可显著降低致突变活性。二氧化硫处理被认为是降低饮用水和含水工业废水的直接作用致突变活性的一种有效、廉价的方法。
In concentrates of water produced in a laboratory simulation of a drinking water treatment process, direct-acting, nonvolatile mutagens were readily detected by means of the Ames Salmonella test. The mutagens were shown to be produced by the chlorination process. Treatment of the water with chloramine resulted in less mutagenic activity than treatment with free chlorine. Dechlorination of drinking water with sulfite sharply reduced the mutagenic activity. Treatment with sulfur dioxide is proposed as an effective, inexpensive method of reducing the direct-acting mutagenic activity of drinking water and of aqueous industrial effluents.