Commercial and Industrial Arsenic Water Filters Utilize a strongly basic hybrid anion exchange resin specially formulated to selectively remove arsenic. Exhibits extraordinary throughput capacity in arsenic removal service on potable water supplies. Its performance is virtually unaffected by common anions, such as chlorides, bicarbonates or sulfates. It is effective over the entire pH range of potable water. Made from NSF/ANSI-61 validated anion exchange resinNo arsenic dumping - effluent arsenic levels will not exceed influent levels if resin is operated past exhaustion point Filtration capacity: Up to 500,000 gallons per Cu. Ft. Resin (at 50 ppb in influent with 10
ppb in effluent.

MAXIMUM CONTAMINANT LEVEL
The EPA established a maximum contaminant level for arsenic, 50 micrograms per liter (50 uq/L) or parts per billion (ppb) in 1976. In October of 2001, the MCL was lowered to 10 ppb

PUBLIC HEALTH CONCERNS
Arsenic can combine with other elements to form inorganic and organic arsenicals.  In general, inorganic derivatives are regarded as more toxic than the organic forms. While food contains both inorganic and organic arsenicals, mainly inorganic forms are present in water. Exposure to arsenic at high levels poses serious health effects, since it is a known human carcinogen. In addition, it has been reported to affect the vascular system in humans and has been associated with the development of diabetes. Arsenic is poisonous in doses significantly larger than 65 mg (1 grain), and the poisoning can arise from a single large dose, or from repeated small doses, as, for example, inhalation of arsenical gases or dust.

  THE ORIGIN OF ARSENIC
Arsenic is an element that occurs in the earth's crust. Accordingly, there are natural sources of exposure. These include weathering of rocks and erosion depositing arsenic in water bodies and uptake of the metal by animals and plants. Consumption of food and water are the major sources of arsenic exposure for the majority of the population. People may also be exposed from industrial sources, since arsenic is used in semi-conductor manufacturing, petroleum refining, wood preservatives, animal feed additives, and herbicides.