Dose where? In potato or surrounding soil or nearby fields or rivers which have runoffs from the farms? In farm animals that will eat it for 10 months and then

Dose where? In potato or surrounding soil or nearby fields or rivers which have runoffs from the farms? In farm animals that will eat it for 10 months and then be butchered? In fish living in those rivers or migrating to oceans to be eaten by other animals up in the food chain? Farmers, just like any other industry, is very good at reading rules and finding very creative ways in between them how to maximize profits regardless of human costs. I don't blame them per se, but let's not be naive about farmers being some sort of saints doing whatever possible to feed the needy with as-healthy-as-possible healthy food. Banning makes things much easier to actually govern and enforce, and doesn't leave endless amounts of backdoors for serious catastrophes 20-50 years down the road. We already had plenty of them to take lesson or two, most started with good intentions but lack of deep scientific understanding which we still don't have in such scale to clear any of these substances to be actually safe. Also, some of us have kids and actually want to leave an OK world for them, if not better, not a scorched wasteland just to have marginally better retirement financial situation.