Aantal gezegden is 1469560
varav 1407627 på engelska
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Toplists (6 st)
Denna sidan visar ordspråk som liknar "TTHM is when you combine chlorine, which you have to put in water. And it's a disinfectant agent that mixes with ammonia, which is naturally found in ground water. Then, if ammonia mixes with chlorine for a long enough period, it forms a TTHM gas.".