Eli5 if chlorine is toxic how come it doesn’t harm me in swimming pools?

Question

Eli5 if chlorine is toxic how come it doesn’t harm me in swimming pools?

In: 4

Answer 1

It’s the dose that makes any substance a poison. Chlorine bleach is extremely effective even at low concentrations. You could add a tiny amount to disinfect drinking water, and drink it before it had decomposed and evaporated off.