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How much pee is in our swimming pools? New urine test reveals the truth quoting : The Guardian

referring to One hotel Jacuzzi had more than three times the concentration of sweetener than in the worst swimming pool.
In one anonymous survey, 19% of adults admitted to having urinated in a swimming pool at least once.
They used the average ACE concentration in Canadian urine to convert their measurements into approximate volumes of urine.
In the future, the scientists suggest it may be possible to use ACE as a test to ensure that urine in pools is kept to a hygienic level.
“We want to use this study to promote public education on appropriate swimming hygiene practices,” said Blackstock.

How much pee is in our swimming pools? New urine test reveals the truth

as mentioned in The scientists measured the level of the sweetner in 31 pools and hot tubs in two Canadian cities to establish that “human urinary input in swimming pools is a public health concern”.
To reduce the levels of DBPs in swimming pool water, the scientists said water quality needed to be controlled and monitored, adding that education on personal hygiene in pools was important.
But how much urine a pool contains courtesy of those who decide to relieve themselves while taking a dip has been difficult to measure – until now.
Acesulfame-K (ACE) is found in pre-packaged food and is excreted by the consumer, making it the ideal marker for measuring urine in pools and hot tubs.
A large pool with about 833,000 litres of water contains around 75 litres of urine, according to findings from scientists at Canada’s University of Alberta.

as mentioned in

How much urine is in a swimming pool? Canadian study has the answer

Although urine itself is sterile, its presence in swimming pools is a public health concern because urine can mix with pool chemicals to harm swimmers’ health, according to the study.
The results showed one 830,000-liter (220,000-gallon) pool, which is about one-third of an Olympic-sized pool, had 75 liters of urine while another smaller pool had 30 liters.
Researchers then used the ACE concentration of the two pools over three weeks to estimate their levels of urine, according to the study.
CALGARY, Alberta Canadian researchers studying urine levels in swimming pools have discovered just how high the levels are, and the results are not pretty, according to an article published on Wednesday.
The Alberta Health provincial department did not immediately respond to a request for comment.

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