Toxicity — Science Learning Hub

A toxic substance is one that is harmful to living organisms or cells. Toxicity is the level of harm a toxin can cause, so you would need only a small amount or a short exposure to a substance with a high toxicity for it to be harmful, while for a substance with a low toxicity, you need to have a high dose or a long exposure for it to be harmful.

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Toxicity — Science Learning Hub

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