Red eyes after swimming are often associated with chloramines rather than simply having too much chlorine in the pool. Chlorine reacts with substances swimmers bring into the water, including sweat, dirt and urine. These reactions produce chloramines indoors, chemical irritants that can affect the eyes and respiratory system. The familiar strong pool smell can also come from chloramines. Good pool hygiene always matters because showering before swimming and avoiding urination in the water reduces the material available for these reactions. Want more interesting content like this ? Follow gravitonomy :) #chlorine #chlorination #swimmingpool #science #redeyes