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Content: Arsenic is used in the semiconductors, glassware, alloys, and wood preservatives. In addition, arsenic was commonly found in pesticides, but has since been removed. Furthermore, arsenic has been utilized in medicine; historically, to treat syphilis, yaws, and amoebic dysentery [2], and recently, to treat leukemia [3]. Human exposure to arsenic occurs through the oral, respiratory, or dermal routes. In ordinary individuals who are not exposed to arsenic through their work environment, the main source of arsenic exposure is likely to be through oral exposure from water, soil, and contaminated agricultural and fish products. Exposure to trivalent or pentavalent inorganic arsenic compounds occurs through contaminated water, air, or soil; however, exposure to organoarsenicals occurs through the consumption of marine animals and plants. Toxicity to the human body varies across the different forms of arsenic. Inorganic arsenic compounds are more toxic than organoarsenicals are, and trivalent arsenite is more toxic than pentavalent arsenate is [4].