If my baby smells like smoke after being held by a smoker is it harmful even if he is never near so?
Maybe, maybe not. Every person, place, and animal has a scent. The question is whether or not a larger number of harmful particles or molecules gets into a baby if held by a person with a smoke-scent, compared to a person with a roofing-tar-scent, a fried-chicken-scent, etc... Many scents are picked up at work; others are self-imposed, such as perfumes. Perhaps the harm of merely smelling smoky is really small.
Yes. Second hand smoke is equally bad exposure to the carcinogens.
2n. Hand smoke. Let me see, well, it's like exposing your baby to a , you know what, you get the message.