Urine in swimming pools is one of those awkward fact of life sentence we often ignore because it ’s gross and there ’s not much we can do about it . Every now and then , it pops up in the news and we have to confront up to the fact that swimming kitty are full ofother mass ’s piddle . EvenOlympic athletesare shamed of relieve themselves mid - swim .

This time , it ’s a paper from the Centers for Disease Control and Prevention ( CDC ) issue in last hebdomad ’s variant of the cheerily namedMorbidity and Mortality Weekly Report . Here , they outline an investigating into an anonymous Ohio indoor waterpark . It was report to the country ’s municipal health department in 2015 by   staff and guests who developed heart , nose , and respiratory trouble after visiting the park .

The health department set up an online sight . Of those who responded , 68 percent ( 19 citizenry in total ) said they ’d see " center burn , nose irritation , difficulty respiration , and vomiting , " concord to thesurvey . employee of the H2O park were four times as likely to break work - related symptoms than those from other area of the resort .

But pee was only half of the problem here . When urine aggregate with chlorine , it shape byproduct called chloramine . The same reaction happens when chlorine mixes with other nitrogen - hold back substances , like sweat , skin cells , sun blocker , and other skin care ware .

Thesechloraminesare what likely caused employees and visitant to the green to develop these irritations , and poor ventilating system allowed them to build up .

" Improperly officiate ventilation systems , resulting in accruement of disinfection by-product and temperature below and relative humidity above recommended ranges , belike conduce to the higher prevalence of symptom among waterpark employees compared with non - waterpark employee , " thepaper’sauthors write .

If you visit an indoor water swim pool and start to notice eye , nose , or respiratory irritations , the CDC advocate you report symptom to your local health authority . It could be a mark that more attention needs to be pay off to the pool ’s water system character and ventilation system .

The CDC also advises showering before your swimming and taking veritable bathroom break to avoid pollute the water . For more information on how to stay healthy in the puddle , check out theCDC ’s guide .

Finally , it die without saying , but please , please , please try not to pee in the pool .