News tagged with toxic sediments
Obama wants to pump $475M into Great Lakes cleanup
May 15, 2009 |
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(AP) -- A budget proposal from the Obama administration would spend $475 million on beach cleanups, wetlands restoration and removal of toxic sediments from river bottoms around the Great Lakes.
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Report: Great Lakes toxic cleanups lagging badly
Sep 15, 2009 |
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(AP) -- A federal report says the government is moving so slowly to clean up the most polluted sites in the Great Lakes that it will take 77 more years to finish the job at the current pace.
Ultra-fine coatings on sediment grains influence nitrate and sulfate storage in soil
Feb 23, 2009 |
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Tiny sediment grains are covered with a very fine-grained, complex mixture of minerals in an open fabric that results in a large surface area in contact with water between the grains. Scientists at the U.S. Geological Survey ...
Groundwater fingered as a source of methylmercury in coastal waters
Jun 09, 2009 |
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For the first time, scientists have detected a highly toxic form of mercury in groundwater flows at two coastal sites in California.
How Mercury Becomes Toxic In The Environment
Aug 18, 2009 |
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(PhysOrg.com) -- Naturally occurring organic matter in water and sediment appears to play a key role in helping microbes convert tiny particles of mercury in the environment into a form that is dangerous to ...
Sediment dredging has fallen short of achieving cleanup goals at many contaminated sites
Jun 05, 2007 |
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At many projects to dredge contaminated sediments from U.S. rivers and other bodies of water, it has not been demonstrated that dredging has reduced the long-term risks the sediments pose to people and wildlife, says a new ...
Pavement sealcoat a source of toxins in stormwater runoff
Apr 08, 2009 |
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Driveways and parking lots may look better with a layer of sealcoat applied to the pavement, but the water running off the surface into nearby streams will be carrying more than just oxygen and hydrogen molecules. ...
Bacteria stop sheep dip poisoning fish and bees
Biology /
Sep 10, 2008 |
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Bacteria can be used to break down used sheep dip, preventing bees and fish from dying because of soil and river contamination, scientists heard today at the Society for General Microbiology's Autumn meeting being held this ...
Jurassic Park from a Swiss lake?
Mar 12, 2009 |
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Ecological changes caused by humans affect natural biodiversity. For example, the eutrophication of Greifensee and Lake Constance in the 1970s and 1980s led to genetic changes in a species of water flea which ...
Geologists studying groundwater arsenic levels in India empower Bengali women, children
Oct 22, 2009 |
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A Kansas State University geologist and graduate student are finding that the most important tools in their fieldwork on groundwater arsenic pollution are women and children armed with pamphlets and testing kits.
Ultrasound And Algae Team Up To Clean Mercury From Sediments
Mar 28, 2006 |
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Ultrasound and algae can be used together as tools to clean mercury from contaminated sediment, according to an Ohio State University study. This research could one day lead to a ship-borne device that cleans ...
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