LYCOS RETRIEVER 
Arsenic
built 230 days ago
Arsenic is a natural element found in soil and minerals. Arsenic compounds are used to preserve wood, as pesticides, and in some industries. Arsenic can get into air, water, and the ground from wind-blown dust. It may ... get into water from runoff.
Source:
Arsenic is a carcinogen, associated with lung cancer when inhaled. Contact with skin can result in skin cancer. Also damage to intestines and liver. Toxic when ingested. Found in pesticides and wood preservatives. It is naturally occurring in many household products.
Source:
Arsenic has many industrial uses such as hardening of copper and lead alloys, pigmentation in paints and fireworks, and the manufacture of glass, cloth, and electrical semiconductors. Arsenic is ... used extensively in the production of agricultural pesticides, which includes herbicides, insecticides, desiccants, wood preservatives and feed additives. Runoff from these uses and the leaching of arsenic from waste generated from these uses has resulted in increased levels of various forms of soluble arsenic in water.
Source:
Arsenic trioxide ... has an interesting application in medicine; it is used as a cytostatic to treat the refractory promyelocytic (M3) subtype of acute myeloid leukemia, generally in IV form. It may be used to treat other leukemia patients who have not responded to other medications.
Source:
Arsenic has been known to cause many problems in Third World countries where groundwater supplies have been contaminated by arsenic derived from geologically recent fluvial deposits containing arseno-pyrites. This is a particular problem in Bangladesh where tube wells installed since the 1970s have intercepted ground waters flowing in the fluvial deposits. Concentrations in these wells can exceed 1 part per thousand whereas the WHO maximum level is 10 parts per billion. See Arsenic contamination of groundwater.
Source:
Arsenic forms a volatile hydride (arsine, AsH3) when reduced with sodium borohydride. The traditional hydride generation AA method uses this chemistry to determine arsenic. However, the batch wise production of the hydride is not a precise technique, therefore most laboratories favor the furnace (GFAA) method of analysis for this reason. On the other hand, continuous formation of the hydride is a very precise technique (RSD<3% at
Source:
MORE ABOUT
Arsenic