Actually nobody can test 100% negative. As humans, we all have natural Cannabinoid receptors in our bodies.
2nd hand exposure could be absorbed by the kids, but that would have to be a very prolonged exposure to give kids a positive drug test.
I hope that whoever is smoking it, has enough common sense to at least do it away from the kids. But if in a house or apartment, I do see how exposure would and could happen.
..interesting.. I don't know much about drugs in general.. I never felt weed was even worth classifying as a "dangerous" drug..alcohol on the other hand.. I would consider extremely dangerous... I just don't see how CPS can remove a child for exposure to weed in a state that allows it medical or recreational...legal recreational users are most likely smoking in areas the children frequent..medicinal users as well..we were informed that pot smokers excrete thc from their pores so by touching and handling children or even touching the hair will cause it to show in hair testing on the children...figure like kinda like Sophie mentioned.. CPS is going to be overwhelmed if they are going to remove children for exposure...geez..what a mess..anyhow..thanks for the input and enjoy your day...