Is chlorine dioxide safe?
The Niagara Falls New York water treatment plant first used chlorine dioxide for drinking water disinfection in 1944. Currently, there are approximately 400 – 500 water treatment plants in the United States and over 1000 in Europe utilizing ClO2 to purify municipal drinking water systems. Numerous studies have shown chlorine dioxide, when used at the appropriate concentrations, has no adverse health effects, either by skin contact or ingestion.