The correct approach is to calculate the harm from one microgram of lead in food (ie. how many IQ points lost, how much lifetime income lost, how much life expectancy reduced, how much healthcare costs go up).
Then multiply that by 100 to give a likely upper bound of something very hard to measure.
Then make companies pay that as a "harm fee" for each product they sell, as a tax to the government.
Do the same for everything toxic.
Before long, companies will be trying very hard to keep toxic products out of the food chain simply to help their profits.
Then multiply that by 100 to give a likely upper bound of something very hard to measure.
Then make companies pay that as a "harm fee" for each product they sell, as a tax to the government.
Do the same for everything toxic.
Before long, companies will be trying very hard to keep toxic products out of the food chain simply to help their profits.