Environmental exposure to arsenic, is a major concern in many industrialized countries. Although metals occur naturally in the
environment but human activities cause more metals releases and have altered the natural cycling of the elements. These exposures
occurs mostly from diet (water and food consumption), inhalation from air and metals related occupational exposure like leaded
gasoline, industrial processes such as smelting of lead and its combustion, pottery, boat building, mining industry, exhaust fumes
of vehicles, metal based painting, metal containing pipes, battery recycling, grids, arm industry, pigments, printing of books, etc
Exposure to arsenic may affect nutrient metabolism and can cause a variety of health effects in human. Cancer, immunotoxicity,
hepatotoxicicty, neurotoxicity, nephrotoxicity, brain damage, lungs damage, gastrointestinal distress and haematological alterations
are the most frequently documented health implication associated with arsenic intoxication. Consequently, this this paper provide a
deep understanding of arsenic, their sources, routes of exposure, the mechanisms of occasioning their toxicity, health implications in
human and to identify substances that contribute to overcome their hazardous effects in human.