Arsenic is a semi-metallic chemical element that occurs naturally in rocks, soil, water, air, plants and animals and is widely distributed in nature in very low concentrations, including trace amounts in everyday foods like chicken, fish, rice and beans.
Although arsenic is toxic in its basic form, this toxicity depends on the quantity, form of presentation and exposure time of the element. Health and environmental agencies have done extensive research to establish acceptable lifetime exposure levels without appreciable risk.
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