The pool that looks beautiful contains 75 liters of "pee"

ByBOMBTWINZ BOMBTWINZ

Urination in public pools and bathing spaces that many people use is a prohibited act contrary to morals, but children who can not understand the rules will be able to pee in the pool well enough. So how much pee is mixed in the pool? A research team at the University of Alberta in Canada has developed a way to quantify the amount of urine mixed in the pool.

Sweetened Swimming Pools and Hot Tubs - Environmental Science & Technology Letters (ACS Publications)
http://pubs.acs.org/doi/abs/10.1021/acs.estlett.7b00043

How much pee is in our swimming pools? New urine test reveals the truth | Science | The Guardian
https://www.theguardian.com/science/2017/mar/01/how-much-pee-is-in-our-swimming-pools-new-urine-test-reveals-the-truth

The research team at Alberta University focused on "acesulfame potassium (acesulfame K)" which is a kind of artificial sweetener contained in processed foods and beverages and has a sweetness 200 times that of sucrose (sucrose). Since acesulfame K is discharged from urine after ingestion, we analyzed the water in the pool, measured the amount of acesulfame K, and succeeded in measuring the amount of urine contained in the pool from there.

Mathew Ingram

Measurement of 31 pools and hot water bath over 3 weeks resulted in 75 liters of urine for 50 liters of PET bottle, which is actually 75 liters in a pool of 830,000 liters, which is one third of the Olympic competition pool It turned out to be done. In addition, it turned out that the pool of 414,600 liters contains 30 liters of urine. In addition, some of the hot water tub protruded and contained urine, and it seems that some hotel jacuzzis contained urine three times as much as the pool with the largest amount of urine contained.

Dr. Blackstock, who led the study, says, "I would like to use this research result to promote appropriate swimming hygiene practice education." In 2012, Michael Phelps, who is called the strongest swimmer in the history of winning Olympic medals, said "We think we are all peeing in the pool" and said in an interview with The Wall Street Journal and it became a hot topic I have done that.

Michael Phelps Speaks to WSJ About Life After Pool - YouTube