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硝酸盐和亚硝酸盐的主要危害是在体内产生N-亚硝基化合物。动物实验已证实几种N-亚硝基化合物为致癌原。已知化学致癌物代谢过程中产生的自由基与致癌作用有关。N-亚硝基化合物转变为终致癌物的过程中也产生自由基。抗氧化剂VitC、VitE、BHA(丁基羟基
The main hazard of nitrates and nitrites is the production of N-nitroso compounds in the body. Animal experiments have confirmed that several N-nitroso compounds are carcinogenic. It is known that free radicals generated during the metabolism of chemical carcinogens are related to carcinogenesis. Free radicals are also produced during the conversion of N-nitroso compounds to the ultimate carcinogen. Antioxidants VitC, VitE, BHA (butyl hydroxyl