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Toxicity Summary |
 | | Toxicity can refer to the effect on a whole organism, such as a human or a bacterium or a plant, or to a substructure, such as the liver. |
 | | Biological toxicity can be more complicated to measure, as the "threshold dose" may be a single organism, as theoretically this one virus, bacterium or worm can reproduce to cause a serious infection. |
 | | Physically toxic entities include things not usually thought of as such by the lay person: direct blows, concussion, sound and vibration, heat and cold, non-ionizing electromagnetic radiation such as infrared and visible light, ionizing non-particulate radiation such as X-rays and gamma rays, and particulate radiation such as alpha rays, beta rays, and cosmic rays. |
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