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Article: Arsenic Residues in Well Water 36 Y after Endemic Arsenic Poisoning.
- Article from:
- Archives of Environmental Health
- Article date:
- September 1, 2000
- Author:
CopyrightCOPYRIGHT 2000 Heldref Publications. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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IN 1959, arsenic poisoning occurred in Nakajo, Japan. The cause was well water, which had been polluted by waste water that contained 400 ppm of inorganic arsenic dumped from a dye factory.[1] Chronic arsenicism was found in 93 of 454 inhabitants in a polluted area.[1] New patients are still being diagnosed with chronic arsenicism. We suspected that arsenic concentrations remained high in environmental media of the area. In 1995, we analyzed arsenic concentrations in soils, and concentrations remained higher than the standard limit--solely within the premises of the factory.[2] In this report, we measured arsenic levels in well water and surveyed how the well water was ...
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