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Inorganic arsenic contaminates groundwater. · key facts arsenic is naturally present at high levels in the groundwater of several countries. · learn more about arsenic poisoning, including symptoms to look out for, the most common causes, and how to treat it. Vomiting, neurological, and … Arsenic poisoning can cause serious complications … Arsenic poisoning occurs most often in major areas of agriculture and industrialization. Arsenic is also a common n-type dopant in … The primary use of arsenic is in alloys of lead (for example, in car batteries and ammunition). Arsenic is highly toxic in its … Organic arsenic is less toxic than inorganic arsenic.