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For a bodyweight around 70 kg (155 lb.), the lethal dose of arsenic would be closer to a gram than 100 mg. Current Queue | Current Queue for Medicine | Medicine archives Try the links in the MadSci Library for more information on Medicine.
Inorganic arsenic (arsenate and arsenite salts) are more harmful than organic arsenic exposure. Organic arsenic is 500 times less harmful than inorganic arsenic, and is a minor problem compared to the groundwater situation which affects many millions of people.hus although arsenic poisoning can be related to human activities such as mining and ore smelting, the most serious problems are natural, resulting from water wells drilled into aquifers that have high concentrations of arsenic.