Only way to find it is to look, but then again that takes a leap of confidence which is far from easy.
I suppose that makes sense, and I'm not surprised they're so concentrated. Poisoning even less surprised, nicotine isn't good stuff. Maybe in some circumstances but that's kind of the mechanic of what is and isn't poisonous, concentration or amount.
I have no idea what will be open to me if I get schooling and certs, I just know its going to be a decade before I can get where I ultimately want. I guess I can be patient, damn if it isn't hard to keep myself stable though with work.