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But small particles surely do end up in the lungs when you're writing with a pencil, right? Certainly when you're drawing with one. Less than 100% of the graphe
by feoren 4y ago
But small particles surely do end up in the lungs when you're writing with a pencil, right? Certainly when you're drawing with one. Less than 100% of the graphene ends up on the paper ...
- kergonath 4y agoSmall particles of everything end up in our lungs, the question is whether they remain there, as opposed to break down or get decomposed, and whether they cause any harm. Dose is important as well.