Time In Chlorinated Pools Ups Teens’ Asthma Risk

Teenagers who spent more than 1,000 hours swimming in chlorinated pools had more than eight times the asthma risk than subjects who swam in copper-silver disinfected pools, according to a study in Pediatrics. Scientists enrolled 847 subjects from 13 to 18 years old who had visited indoor or outdoor swimming pools. Of the 847, 114 mainly visited copper-silver disinfected pools; 733 visited chlorine-disinfected pools. The number of subjects who had ever had asthma increased in proportion to their chlorine-disinfected pool exposure. And risk of current asthma was more than eight times higher in the group with more than 1,000 hours in chlorine-disinfected pools compared with subjects who were rarely in chlorinated water. . read more.