2. Relevance to Public Health 2.1 Background and Environmental Exposures to Arsenic in the United States
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چکیده
Arsenic is widely distributed in the Earth's crust, which contains ~3.4 ppm arsenic. In nature, arsenic is mostly found in minerals and only to a small extent in its elemental form. Arsenic is mainly obtained as a byproduct of the smelting of copper, lead, cobalt, and gold ores. Arsenic trioxide is the primary form in which arsenic is marketed and consumed. There has been no domestic production of arsenic since 1985. In 2003, the world’s largest producer of arsenic compounds was China, followed by Chile and Peru.
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