There is little info in the article about how the sterilizing molecule works. I wonder what the runoff or excretion of it will do in rivers. The pill excreted i

There is little info in the article about how the sterilizing molecule works. I wonder what the runoff or excretion of it will do in rivers. The pill excreted in human urine already have pretty bad consequences (e.g. hermaphrodite water based life), I'm afraid this wonder product could wipe more than rattus...