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

From The Guardian

Studies reveal that 3 out of every 4 people have done this, and yet nobody will admit to doing so.  Unfortunately, it seems like a harmless activity at the time.  In reality, the byproducts of the chemical reaction of sanitizers and compounds in urine can potentially cause harm to humans far beyond what was previously understood.  This post from The Guardian reveals a new scientific test that can actually measure the amount of urine in swimming pools.  Understanding this number will go a long way towards removing these dangerous compounds and hopefully creating awareness of how harmful urine can be in a swimming pool.

Here is an excerpt from the post:

Just How Much Pee Is In That Pool?

From NPR

It's a subject that every pool owner is aware of, but none want to discuss.  Being surrounded by warm water for any period of time will make any human being want to urinate, and children are especially vulnerable to the effects of the warm water envelope.  Just how harmful is this situation?  This post from NPR addresses this uncomfortable subject head-on with scientific evidence, and the results may surprise those who think this is a harmless activity.

Here is an excerpt from the post:

The Difference Between Free and Total Chlorine

From Swim University

Most people when they are swimming in an inground pool are congnizant of one aspect of water chemistry: Chlorine Level.  What people don't realize is that this seemingly simple measure is actually quite complicated.  It takes an amateur chemist to understand water balance, and all of the various factors that can affect it in swimming pools.  This post by Matt Giovanisci of Swim University, however, attempts to explain the components of chlorine within that complicated mixture.  

Here is an excerpt from the post: