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Article: Dentists filtering out mercury; But nearly one-fifth miss MMSD deadline
- Article from:
- The Milwaukee Journal Sentinel (Milwaukee, WI)
- Article date:
- February 10, 2008
- Author:
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Copyright informationCopyright 2008 The Milwaukee Journal Sentinel. Provided by ProQuest LLC. (Hide copyright information)
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Dentists throughout Wisconsin are being told they must end
routine flushing of mercury to sewage treatment plants, where the
toxic metal is released to the environment.
Removing silver-colored fillings from patients' mouths, and
placing new silver fillings in, are ongoing and significant sources
of mercury to sewers, say federal and state environmental
regulators. They are curtailing discharges of the metal as part of a
strategy to reduce both contamination of fish in lakes and rivers,
and the risk of ill health effects to the people who eat those fish.
Unless there is a large industrial source in a community, about
50% of the mercury in wastewater flowing to sewage treatment plants
comes ...
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