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How Germy Is the Public Pool? An Infectious Disease Expert Weighs in on Poop, Pee and Perspiration – and the Deceptive Smell of Chlorine
The CDC says a 2023 report found more than 200 pool outbreaks that affected over 3,600 people nationwide.
Every summer, the CDC issues alerts about swimming-related illness outbreaks in public pools and water parks, which pose unique risks ranging from minor skin irritations to gastrointestinal infections.
Strong chemical odors are a common myth signaling clean pools, but they actually indicate contamination when swimmers' bodily residues like sweat and urine interact with chlorine to form harmful byproducts.
Between 2015 and 2019, a 2023 CDC report tracked over 200 pool-associated outbreaks affecting more than 3,600 people, including skin infections, respiratory issues, ear infections, and gastrointestinal distress.
Cryptosporidium, a parasite causing watery diarrhea, survives in treated water for up to 10 days; swimmers should shower for at least one minute before swimming and avoid pools if experiencing diarrhea.
Swimmers can enjoy water safely by following preventive measures: regular bathroom breaks, checking diapers hourly, drying ears thoroughly after swimming, and showering for one minute before entering the pool.
Every summer, news of elevated chlorine concentrations in swimming pools raises concerns, raising the issue of water quality in public and private swimming pools.