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by tomclive 2890 days ago
The headline is a bit clickbaity. The third paragraph starts with "In fact, chlorine is still a culprit." A more accurate title could be "Urine and Chlorine Cause Red Eyes in Pools."
3 comments

Actually, it's chloramine alone that is the culprit for both the smell and the red eyes according to the actual report. Which isn't reporting any new finding, as far as I know this has been well known since many years.

The short version is; A pool that smells strongly of 'clorine' ( chloramine(s) ) is a pool with a high load of contaminants, and whether or not the chlorine concentration is kept at levels enough to cope with the load can't afaik easily be determined, but it's reasonable to a assume a higher load implies a higher risk for insufficient levels.

Or as the report states: >What you smell are actually chemicals that form when chlorine mixes with pee, poop, sweat, and dirt from swimmers’ bodies. Yuck! >These chemicals—not chlorine—can cause your eyes to get red and sting, make your nose run, and make you cough. >Healthy pools, waterparks, hot tubs, splash pads, and spray parks don’t have a strong chemical smell.

I think it's more accurate as it is. Your alternative suggests to me that both contribute independently i.e. chlorine alone will burn eyes, where the article suggests that isn't true.

Since chlorine in pools is ubiquitous, the urine's the central issue. C.f. hydrogen tanks being labelled "fire hazard", not "fire hazard in an oxygen environment".

Maybe, but it's not only urine that causes red eyes. When chlorine binds with any organic matter it can create compounds that sting your eyes. Sweat isn't as eye-catching as urine.
I don't get it. Chlorinated water from the drinking tap, otherwise perfectly pure, smells of chlorine. And swimming pools might use much more than it's used in public water distribution, and in variable amounts- depending on how many tablets have been used, how recently, etc.