Questions tagged [poison]

A substance that is capable of causing the illness or death of a living organism when introduced or absorbed is considered a poison. This differs slightly from a venom as it is a broader subject and can cover things that can potentially harm, such as alcohol.

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What protective mechanisms against lead absorption are present in adults but not fully developed in children?

According to this summary, adults typically absorb up to 20% of ingested lead after a meal, whereas children typically absorb up to 50% of ingested lead after a meal. When I search to try to find out ...
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What are "sunset additives"?

In relation to stories such as this one, with the (probably sensationalized?) headline of "Nigerians boycott Coca-Cola drinks after court rules them 'poisonous'": Consumers of Sprite and Fanta have ...
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Is it harmful to write on yourself with pen ink?

If so, what are the chemicals present that make it toxic? I imagine it depends on the pen. Specifically, I'm asking about bic pens and sharpies, but I'm curious in general.