近年来,饮用水中某些化学物质的致突变性研究,国外已有报导,但饮水净化消毒剂本身是否有致突变性尚缺乏报导。饮水中的一些化学致癌物质如:苯并芘,一溴二氯甲烷虽然含量低,但在啮齿动物的实验证明,会累积起来引起细胞DNA损伤和基因突变,从而导致癌和遗传性缺陷等病变。实验表明致癌物也可能就是致突变物。所以饮水净化消毒剂本身是否有致突变性,同时也可间接判断是否有致癌性。 Ames等人用鼠伤寒沙门氏菌组氨酸缺 In recent years, some chemicals in drinking water mutagenicity studies have been reported abroad, but drinking water purification disinfectant itself mutagenicity is still lacking coverage. Some chemical carcinogens in drinking water such as benzopyrene and bromodichloromethane are low in content, but experiments in rodents prove that they accumulate to cause DNA damage and gene mutation in cells, leading to diseases such as cancer and genetic defects . Experiments show that carcinogens may also be mutagenic. Therefore, water purification disinfectant itself mutagenicity, but also indirectly determine whether there is carcinogenic. Ames and others with Salmonella typhimurium lack of histidine