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Only once :Liar:
!00 breasts push ups will forgive you :biggrin2:
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Another urban legend bites the dust.
Question: Is There a Pool Urine Detector or Pool Urine Indicator Dye?
Answer: No. There is no chemical which changes color when someone urinates in a swimming pool. There are dyes which could cloud, change color, or produce a color in response to urine, but these chemicals would also be activated by other compounds, producing embarrassing false-positives.
Though there is no such thing as urine-detecting dye, you can purchase signs that prey upon the misconception that a urine indicator exists. The signs, which warn the pool is being monitored with a chemical 'wee alert', are believed to be an effective deterrent against urination in a pool, particularly with adult swimmers.
https://chemistry.about.com/od/waterchemistry/f/pool-urine-indicator.htm
Question: Is There a Pool Urine Detector or Pool Urine Indicator Dye?
Answer: No. There is no chemical which changes color when someone urinates in a swimming pool. There are dyes which could cloud, change color, or produce a color in response to urine, but these chemicals would also be activated by other compounds, producing embarrassing false-positives.
Though there is no such thing as urine-detecting dye, you can purchase signs that prey upon the misconception that a urine indicator exists. The signs, which warn the pool is being monitored with a chemical 'wee alert', are believed to be an effective deterrent against urination in a pool, particularly with adult swimmers.
https://chemistry.about.com/od/waterchemistry/f/pool-urine-indicator.htm
ool...nope :no:
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How much pee is in our swimming pools? New urine test reveals the truth
Olympic swimmers admit to it and it seems many of the rest us are peeing in the water too, with a new scientific test finding up to 75 litres of urine in public pools
It is an antisocial act that normally goes under the radar, but many swimmers have long suspected the truth: people are peeing in the pool.
Now scientists have been able to confirm the full extent of offending for the first time, after developing a test designed to estimate how much urine has been covertly added to a large volume of water. Regular swimmers with a keen sense of hygiene may wish to stop reading now.
The test works by measuring the concentration of an artificial sweetener, acesulfame potassium (ACE), that is commonly found in processed food and passes through the body unaltered.
After tracking the levels of the sweetener in two public pools in Canada over a three-week period they calculated that swimmers had released 75 litres of urine – enough to fill a medium-sized dustbin – into a large pool (about 830,000 litres, one-third the size of an Olympic pool) and 30 litres into a second pool, around half the size of the first.
Lindsay Blackstock, a graduate student at the University of Alberta, Edmonton, and lead author, said: “Our study provides additional evidence that people are indeed urinating in public pools and hot tubs.”
Although the researchers were unable to confirm exactly what fraction of visitors were choosing to quietly relieve themselves in the water rather than making the shivery trip to the changing rooms, the results suggest that the urine content was being topped up several times each day.
“We did not monitor the number of pool users over the three week time period ... so there is no way we could estimate the number of individual urination events per day,” said Blackstock.
The findings make for unwelcome reading, but swimmers might find some comfort in the measurements from eight hot tubs, which were found to have far higher urine levels. One hotel Jacuzzi had more than three times the concentration of sweetener than in the worst swimming pool.
In total, the team sampled 31 different pools and tubs in two Canadian cities and found ACE to be present in 100% of the samples, with concentrations up to 570 times the background level in tap water samples. They used the average ACE concentration in Canadian urine to convert their measurements into approximate volumes of urine.
“We want to use this study to promote public education on appropriate swimming hygiene practices,” said Blackstock. “We should all be considerate of others and make sure to exit the pool to use the restroom when nature calls.”
While most people, beyond early childhood, would not admit to using their local swimming pool as a giant communal toilet, the results are not entirely surprising. In one anonymous survey, 19% of adults admitted to having urinated in a swimming pool at least once. And professional swimmers have confessed to being among the most regular offenders.
Ahead of the London 2012 Olympics, the US swimmer, Ryan Lochte, said: “I think there’s just something about getting into chlorine water that you just automatically go,” and his team-mate, Michael Phelps, agreed it was acceptable behaviour. “I think everybody pees in the pool,” he said. “Chlorine kills it, so it’s not bad.”
However, while urine is sterile, compounds in urine, including urea, ammonia, and creatinine have been found to react with disinfectants to form byproducts known as DBPs that can lead to eye and respiratory irritation. Long-term exposure to the compounds has been linked to asthma in professional swimmers and pool workers.
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. Contrary to the warning many children are given – that a coloured cloud will appear around them if they pee – there is currently no urine indicator dye that could be used in a pool.
“This is a myth probably used to scare children, and adults, into using proper hygiene practices for fear of public humiliation,” said Blackstock.
The findings are published in the American Chemical Society journal, Environmental Science & Technology Letters.
How much pee is in our swimming pools? New urine test reveals the truth | Science | The Guardian
Olympic swimmers admit to it and it seems many of the rest us are peeing in the water too, with a new scientific test finding up to 75 litres of urine in public pools
It is an antisocial act that normally goes under the radar, but many swimmers have long suspected the truth: people are peeing in the pool.
Now scientists have been able to confirm the full extent of offending for the first time, after developing a test designed to estimate how much urine has been covertly added to a large volume of water. Regular swimmers with a keen sense of hygiene may wish to stop reading now.
The test works by measuring the concentration of an artificial sweetener, acesulfame potassium (ACE), that is commonly found in processed food and passes through the body unaltered.
After tracking the levels of the sweetener in two public pools in Canada over a three-week period they calculated that swimmers had released 75 litres of urine – enough to fill a medium-sized dustbin – into a large pool (about 830,000 litres, one-third the size of an Olympic pool) and 30 litres into a second pool, around half the size of the first.
Lindsay Blackstock, a graduate student at the University of Alberta, Edmonton, and lead author, said: “Our study provides additional evidence that people are indeed urinating in public pools and hot tubs.”
Although the researchers were unable to confirm exactly what fraction of visitors were choosing to quietly relieve themselves in the water rather than making the shivery trip to the changing rooms, the results suggest that the urine content was being topped up several times each day.
“We did not monitor the number of pool users over the three week time period ... so there is no way we could estimate the number of individual urination events per day,” said Blackstock.
The findings make for unwelcome reading, but swimmers might find some comfort in the measurements from eight hot tubs, which were found to have far higher urine levels. One hotel Jacuzzi had more than three times the concentration of sweetener than in the worst swimming pool.
In total, the team sampled 31 different pools and tubs in two Canadian cities and found ACE to be present in 100% of the samples, with concentrations up to 570 times the background level in tap water samples. They used the average ACE concentration in Canadian urine to convert their measurements into approximate volumes of urine.
“We want to use this study to promote public education on appropriate swimming hygiene practices,” said Blackstock. “We should all be considerate of others and make sure to exit the pool to use the restroom when nature calls.”
While most people, beyond early childhood, would not admit to using their local swimming pool as a giant communal toilet, the results are not entirely surprising. In one anonymous survey, 19% of adults admitted to having urinated in a swimming pool at least once. And professional swimmers have confessed to being among the most regular offenders.
Ahead of the London 2012 Olympics, the US swimmer, Ryan Lochte, said: “I think there’s just something about getting into chlorine water that you just automatically go,” and his team-mate, Michael Phelps, agreed it was acceptable behaviour. “I think everybody pees in the pool,” he said. “Chlorine kills it, so it’s not bad.”
However, while urine is sterile, compounds in urine, including urea, ammonia, and creatinine have been found to react with disinfectants to form byproducts known as DBPs that can lead to eye and respiratory irritation. Long-term exposure to the compounds has been linked to asthma in professional swimmers and pool workers.
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. Contrary to the warning many children are given – that a coloured cloud will appear around them if they pee – there is currently no urine indicator dye that could be used in a pool.
“This is a myth probably used to scare children, and adults, into using proper hygiene practices for fear of public humiliation,” said Blackstock.
The findings are published in the American Chemical Society journal, Environmental Science & Technology Letters.
How much pee is in our swimming pools? New urine test reveals the truth | Science | The Guardian
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Coles notes for my buddy @Boing
How much pee is in our swimming pools? New urine test reveals the truth
The test works by measuring the concentration of an artificial sweetener, acesulfame potassium (ACE), that is commonly found in processed food and passes through the body unaltered.
After tracking the levels of the sweetener in two public pools in Canada over a three-week period they calculated that swimmers had released 75 litres of urine – enough to fill a medium-sized dustbin – into a large pool (about 830,000 litres, one-third the size of an Olympic pool) and 30 litres into a second pool, around half the size of the first.
The findings make for unwelcome reading, but swimmers might find some comfort in the measurements from eight hot tubs, which were found to have far higher urine levels. One hotel Jacuzzi had more than three times the concentration of sweetener than in the worst swimming pool.
However, while urine is sterile, compounds in urine, including urea, ammonia, and creatinine have been found to react with disinfectants to form byproducts known as DBPs that can lead to eye and respiratory irritation. Long-term exposure to the compounds has been linked to asthma in professional swimmers and pool workers.
How much pee is in our swimming pools? New urine test reveals the truth
The test works by measuring the concentration of an artificial sweetener, acesulfame potassium (ACE), that is commonly found in processed food and passes through the body unaltered.
After tracking the levels of the sweetener in two public pools in Canada over a three-week period they calculated that swimmers had released 75 litres of urine – enough to fill a medium-sized dustbin – into a large pool (about 830,000 litres, one-third the size of an Olympic pool) and 30 litres into a second pool, around half the size of the first.
The findings make for unwelcome reading, but swimmers might find some comfort in the measurements from eight hot tubs, which were found to have far higher urine levels. One hotel Jacuzzi had more than three times the concentration of sweetener than in the worst swimming pool.
However, while urine is sterile, compounds in urine, including urea, ammonia, and creatinine have been found to react with disinfectants to form byproducts known as DBPs that can lead to eye and respiratory irritation. Long-term exposure to the compounds has been linked to asthma in professional swimmers and pool workers.
I could only last 2 minutes in a hot tub but after reading your experience, never again......Useful info.:good:Fuggedabouditt said:Thank you for Coles notes, always appreciated
I worked a few summers in the pool and jacuzzi industry. Building and servicing both residential and commercial. I would never go in to a public hot tub/jacuzzi after cleaning and servicing them. My last trip to Cuba a few months ago, I was invited to join a bunch of people in the hot tub. Nope. I sat on the edge and only dangled my feet in. When someone made a comment about someone vomitting in a hot tub on another vacation, I started telling them about my stories. A few got out. Only the drunk ones and in particular, the young ladies who go "WOOOOOOOOO!!!!" every 60 seconds, stayed. Also remember that the heat from hot tubs makes you perspire, even though you don't think because you're in water, all the bodily fluids are seeping out of you and that's what I saw in semi solid form in filters....ugh.
Pools aren't so bad but I still cringe.
Pool pee
University of Alberta led a study that attempted to estimate how much urine might be in pools. The researchers developed a rapid, high-throughput analytical technique to test 450 water samples from 31 actively used pools and hot tubs in two Canadian
University of Alberta led a study that attempted to estimate how much urine might be in pools. The researchers developed a rapid, high-throughput analytical technique to test 450 water samples from 31 actively used pools and hot tubs in two Canadian
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