The article is devoted to the important urgent problem of maintenance of epidemiological safety of drinking water. The chemical, biological, toxicological, technological, ecological and economic aspects of the use of chlorine dioxide as highly effective desinfectant and oxidant are considered during clearing and decontamination of water. The results of own researches are submitted.
The authors conclude, that chlorine dioxide is epidemiology and ecologically safe, toxicologically harmless, technologically adequate and economically acceptable mean of treatment of drinking water in the systems of water supply of settlements.