Arsenic (As) is a dark trace materials needed for the body, but in high doses is toxic. And they exist mainly in natural and industrial production activities and agriculture or volcanic activity. In industry there are two kinds of shapes As the yellow form and format in which black As with compounds such as As2O3, As2O5, AsCl3, ..
As Contamination also called arsenicosis, As inorganic after being absorbed will metabolism and excretion in the urine as metylasonic and acid which in turn is 67% and 20%. As is also the cause of many types of acute intoxication and chronic (gastrointestinal tract, inhalation, skin lesions, gastrointestinal disorders, affecting the liver, ..).
We now have a some measures to prevent poisoning and the treatment of poisoning from the As. However, there has not been applied strictly for chronic diseases.
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