I agree there are some of the strongest-smelling chlorinated pools which seem no different than plain Clorox in the bottle, where we know there is no urine in t

I agree there are some of the strongest-smelling chlorinated pools which seem no different than plain Clorox in the bottle, where we know there is no urine in the reference material. On an ordinary chromatograph which has been dedicated to a degree for accurate analysis of chloramine, it will not be capable of detecting the amount of free chlorine gas in the same pool air sample. The actual free chlorine would best be determined on different instrumentation, and correlated to the readings for chloramines to see if further trends can be revealed. Whatever it takes to keep kids from playing in the toilet water and peeing in the pool.