The average public swimming pool contains 75 litres of urine.
Canadian scientists have developed a way of determining the wee volume by using a widely used synthetic sweetener which remains complete when excreted as a urinary marker.
Professor Xing-Fang Li from the University of Alberta told ABC Radio Melbourne their research found that in an average-sized 830,000-litre swimming pool there could be up to 75 litres of wee.
To put that amount into perspective, that is around 570 times more urine than is found in your tap water, the study said.
Source: abc.net.au
