Yes, it has come down to having scientists to dive into and sift out to give us the true facts and down right dirty truths to be told on what is inside the pool besides the water and people in it. Please click on the link provided to read up more on how the scientists determined the amount and to read up on how bad the spas might be. This article will tell you on how the scientists found the data, and this post is to inform you on what to look for and to know when you are swi