News tagged with mercury toxicity
Mercury in dolphins: Study compares toxin levels in captive and wild sea mammals
Amid growing concerns about the spread of harmful mercury in plants and animals, a new study by researchers from The Johns Hopkins University and The National Aquarium has compared levels of the chemical in ...
May 21, 2012 |
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Toxic mercury, accumulating in the Arctic, springs from a hidden source
(Phys.org) -- Environmental scientists at Harvard have discovered that the Arctic accumulation of mercury, a toxic element, is caused by both atmospheric forces and the flow of circumpolar rivers that carry ...
Space & Earth / Earth Sciences
May 21, 2012 |
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Nasa finds sea ice decline driving rise in Arctic air pollutants
(PhysOrg.com) -- Drastic reductions in Arctic sea ice in the last decade may be intensifying the chemical release of bromine into the atmosphere, resulting in ground-level ozone depletion and the deposit of ...
Space & Earth / Earth Sciences
Mar 02, 2012 |
4.5 / 5 (11) |
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Next-generation light bulb shines at CES
A California startup out to change the world shined at the Consumer Electronics Show on Thursday with a light bulb blending beauty and efficiency with love for the Earth.
Technology / Energy & Green Tech
Jan 13, 2012 |
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Using air pollution thresholds to protect and restore ecosystem health
Air pollution is changing our environment and undermining many benefits we rely on from wild lands, threatening water purity, food production, and climate stability, according to a team of scientists writing in the 14th edition ...
Nov 14, 2011 |
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Engineered bacteria mop up mercury spills
Thousands of tonnes of toxic mercury are released into the environment every year. Much of this collects in sediment where it is converted into toxic methyl mercury, and enters the food chain ending up in the fish we eat. ...
Aug 12, 2011 |
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LED bulbs hit 100 watts as federal ban looms
Two leading makers of lighting products are showcasing LED bulbs that are bright enough to replace energy-guzzling 100-watt light bulbs set to disappear from stores in January.
Technology / Energy & Green Tech
May 16, 2011 |
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Older dental fillings contain form of mercury unlikely to be toxic
A new study on the surface chemistry of silver-colored, mercury-based dental fillings suggests that the surface forms of mercury may be less toxic than previously thought. It appears online in ACS' journal ...
Dec 09, 2009 |
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Form of Mercury in Older Dental Fillings Unlikely to be Toxic: Study
(PhysOrg.com) -- Amid the on-going controversy over the safety of mercury-containing dental fillings, a University of Saskatchewan research team has shed new light on how the chemical forms of mercury at the surface of fillings ...
Chemistry / Analytical Chemistry
Nov 11, 2009 |
4 / 5 (3) |
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EPA to limit mercury emissions from power plants
The Environmental Protection Agency will put controls on the emissions of hazardous pollutants such as mercury from coal-fired power plants for the first time by November 2011, according to an agreement announced Friday to ...
Oct 26, 2009 |
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Brookhaven Lab Patents New Method for Mercury Remediation
Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have patented a new method to remove toxic mercury from soil, sediment, sludge and other industrial waste. As described in recently ...
Sep 15, 2009 |
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Federal study shows mercury in fish widespread
(AP) -- No fish can escape mercury pollution. That's the take-home message from a federal study of mercury contamination released Wednesday that tested fish from nearly 300 streams across the country.
Aug 19, 2009 |
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Dell bans e-waste export to developing countries
(AP) -- PC maker Dell Inc. formally banned on Tuesday the export of broken computers, monitors and parts to developing countries amid complaints that lax enforcement of environmental and worker-safety regulations have allowed ...
May 12, 2009 |
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Amalgam fillings are safe, but skeptics still claim controversy, researcher says
Dental amalgam has been proven safe and effective for years, yet unfounded controversy still surrounds it, a Medical College of Georgia researcher says.
Apr 02, 2009 |
3.3 / 5 (3) |
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Researchers find traces of mercury in high-fructose corn syrup
A swig of soda or bite of a candy bar might be sweet, but a new study suggests that food made with corn syrup also could be delivering tiny doses of toxic mercury.
Jan 27, 2009 |
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