Ordinary Toxicity of Chlorine Dioxide and By-products Chlorite and Chlorate in Water

摘要

Acute toxicity and accumulated toxicity of chlorine dioxide (ClO_2) and by-products chlorite (ClO_2~-) and chlorate (ClO_3~-) in water acted on mice are studied by the method of Horn and accumulation coefficient. Subchronic toxicity of the mixture of ClO_2 and ClO_2~-and ClO_3~- in water acted on rat is studied though feeding test for 90 days, including statistical analysis of variance on weight gaining, food utilization efficiency, index of blood and serum, liver (or kidney) to body weight ratio, and histopathological examination on liver and kidney. The results show that aqueous solution of ClO_2, NaClO_2 and NaClO_3 (with the concentration of 276. 5 mg/L, 200 mg/L and 200 mg/L respectively) and the mixed aqueous solution of CLO_2 with the concentration of 553 mg/L are actually non-poisonous , and non-cumulative aqueous solution as well.