May 26, 2009- Arsenic is a well-known toxic chemical that the Environmental Protection Agency and the World Health Organization list as a known carcinogen. While arsenic occurs naturally, it can also be found in industrial applications such as leather and wood treatments and pesticides.
Man-made arsenic contamination results from the manufacture of metals and alloys, petroleum refining, and the burning of fossil fuels and wastes. “These industrial activities have created a strong legacy of arsenic pollution throughout the United States,” says an EPA report from April 2004. “The combination of high toxicity and widespread occurrence has created a pressing need for effective monitoring and measurement of arsenic in soil and groundwater.”
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