Chlorine is a crucial disinfectant for swimming pools, but it is not a magic bullet against all germs, according to health experts. Understanding common pool hygiene mistakes can help swimmers avoid potential health risks such as infections.
Lisa Cuchara, a professor of biomedical sciences at Quinnipiac University, teaches a course on germs encountered during leisure activities and highlights the importance of showering both before and after swimming. A pre-swim shower can help keep the pool cleaner by washing away dirt and sweat. A post-swim shower, even a brief one, can remove any contaminants from the water and wash away chlorine that might irritate skin and hair.
Experts also caution against entering the pool with open wounds. While skin acts as a strong barrier against germs, any break in the skin, such as a shaving nick, scrape, or surgical site, can become an entry point for pathogens. Chlorine does not instantly seal these wounds or kill all bacteria present.
Common concerns for swimmers include swimmer's ear and Cryptosporidium, a parasite that can cause gastrointestinal illness. While chlorine effectively kills many microorganisms, its effectiveness can be reduced by factors such as high bather load and organic matter in the water. Regular testing and maintenance of chlorine levels and pH are essential for effective disinfection.