SAFIETOU THIAM, MINISTRE DE LA SANTE ET DE LA PREVENTION : « Les populations pourront accéder gratuitement aux soins médicaux au Sénégal… »
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le : 2008-08-20 12:58:57 |
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How does arsenic get into water supplies?
Most arsenic enters water supplies either from natural deposits in the earth or from industrial and agricultural pollution. Arsenic is a natural element of the earth's crust. It is used in industry and agriculture, and for other purposes. It also is a byproduct of copper smelting, mining and coal burning. U.S. industries release thousands of pounds of arsenic into the environment every year.
6. Can water systems reduce arsenic levels in drinking water?
Yes. Some systems may be able to reduce arsenic levels by cleaning up or changing the source of their water. For exam
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