Chlorine and Health Risks – Little Known Facts About Chlorine

According to a study in the January issue of American Journal of Epidemiology, drinking, bathing or swimming in chlorinated water may increase the risk of bladder cancer, Reuters Health reported. The findings are the first to suggest that the chemicals can be harmful when they are inhaled or absorbed through the skin, as well as when ingested, Dr. Cristina M. Villanueva of the Municipal Institute of Medical Research in Barcelona, Spain and colleagues noted. Study participants who drank chlorinated water were at 35 percent greater risk of bladder cancer than those who didn’t, while use of swimming pools boosted bladder cancer risk by 57 percent. Those who took longer showers or baths and lived in municipalities with higher trihalomethane levels were also at increased cancer risk.

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