Smoking a pack of cigarettes prolly not hurt a person much, smoking a pack a day for 30 years, different story.
What I wonder is spray (roundup ready) RR field corn or or RR sweet corn with glosphate and other chemicals, modes of action. The chemicals being systemic ( absorbs the chemicals) how many parts per million of the chemicals are in the plant.When the plant produces the ear is there any chemicals in the ear and if so how many parts per million? Or after awhile do the chemicals dissappear or become inert (inactive)I will probably never know the answer.
This is the reason I do not spray or use chemicals on my grass, weeds. The plants absorb and the chemicals just dont dissapear. The chickens eat the grass, weeds so how many parts per million are they eating if I spray?
Anyway many things, chemicals are safe if used correctly.
Unlikely to be human carcinogin. When I ask team member in store, Where is your motor oil? When they answer, " I think it is isle 15", tells me they dont know.
Unlikely tells me they dont know.
Sorry in my older years I have become abit cynical.