Arsenic Sources

Arsenic in water is derived from natural and anthropogenic sources.  The natural sources include weathering and dissolution of arsenic minerals (geogenic). The anthropogenic sources include disposal of solid by-products from combustion processes (e.g., coal plants, solid waste incinerators, cement plants, and paper mills), discharge of produced water from in-situ extraction processes  (e.g., uranium, oil and natural gas), and application of arsenic based pesticides. More details about arsenic sources including natural and anthropogenic are discussed in later pages.