Many people have “secretly” urinated in a pool, thinking that it would be indistinguishable. However, a recent Canadian study demonstrated that the “disinfecting water” smell often present at a pool can be identified as a mix of not only bleach but sweat, sebum and urine.
Although urine itself is sterile, elements within urine including urea, ammonia, amino acids, creatinine and many more are all substances that may interact with disinfectant materials such as chlorine. This reaction may be harmful to the eyes, respiratory tract and can even increase the risk of asthma attacks.
These processes can be increasingly dangerous in indoor swimming pools, as they are poorly ventilated and lack sunlight. Thus making products of injurious reactions more difficult to disperse, to the point that they can repeatedly damage the human body.
In order to prevent swimming pools from becoming dangerous ecosystems for bacteria, rules should be followed by all. If have recently had diarrhea, you should not be swimming, take a bath before and after swimming and do not urinate or defecate in the pool.