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Latest Methylmercury Stories

2009-08-19 14:47:06

U.S. scientists say they've found organic matter in water and sediment apparently play a key role in helping microbes convert mercury into a dangerous form. The finding by Duke University environmental engineers is said to be important because it could change the way mercury in the environment is measured and therefore regulated. The particular harmful form of the element, known as methylmercury, is a potent toxin for nerve cells, researchers said. When ingested by organisms, it is not...

2009-06-18 13:54:08

Scientists say they've found a much higher level of mercury flowing from Canada's Mackenzie River into the Arctic Ocean than found by previous studies. University of Alberta researcher Jennifer Graydon and her colleagues analyzed water in the Mackenzie River as it flowed north into the Beaufort Sea. She collected samples for three months and discovered the total amount of mercury exported from the river during that period was equal to an entire year's worth of mercury calculated in previous...

2009-06-16 12:14:18

University of Alberta researchers conducting a water study in the Mackenzie River Delta have found a dramatically higher delivery of mercury from the Mackenzie River to the Arctic Ocean than determined in previous studies.Researcher Jennifer Graydon analyzed water in the Mackenzie River as it flowed north into the Beaufort Sea. She collected samples for three months and discovered the total amount of mercury exported from the river during that three-month period was equal to an entire year's...

2009-05-06 15:13:07

U.S. Geological Survey scientists say they've determined Pacific methylmercury contamination will increase 50 percent by 2050 if current rates continue. The researchers documented how mercury emissions from human sources make their way into the North Pacific Ocean, including the long-range transport of mercury within the ocean originating in the western Pacific Ocean. Methylmercury -- a highly toxic form of mercury -- can cause serious health concerns for those eating seafood, the scientists...

2009-05-03 12:51:51

A new landmark study published May 1 documents for the first time the process in which increased mercury emissions from human sources across the globe, and in particular from Asia, make their way into the North Pacific Ocean and as a result contaminate tuna and other seafood. Because much of the mercury that enters the North Pacific comes from the atmosphere, scientists have predicted an additional 50 percent increase in mercury in the Pacific by 2050 if mercury emission rates continue as...

2009-02-10 10:39:00

Citizens' groups say problem warrants immediate United Nations action WASHINGTON, Feb. 10 /PRNewswire-USNewswire/ -- As the world's governments convene next week to discuss developing a legally binding treaty on mercury, citizens' groups from around the world have released a new report calling attention to the significant global human health hazards caused by mercury in fish and fish-eating marine mammals. Over twenty groups from around the world (1), including the international Zero...

2009-01-30 09:33:00

SAN FRANCISCO, Jan. 30 /PRNewswire/ -- ChemRisk, a leading scientific consulting firm, was asked by the Corn Refiners Association (CRA) to examine the recent publication by Institute for Agriculture and Trade Policy (IATP), "Not So Sweet: Missing Mercury and High Fructose Corn Syrup," and the Environmental Health journal publication "Mercury from chlor-alkali plants: measured concentrations in food product sugar," by Dufault et al, 2009, and to offer our comments and analysis. In...

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2009-01-28 07:20:00

New research suggests that common foods made with high fructose corn syrup may contain mercury.  Another study suggests that corn syrup itself may contain the toxin. The corn syrup industry objected to the findings, calling them outdated, but researchers said it was important for the public to know if there are sources of toxic metal in the products they are consuming. A study conducted by former Food and Drug Administration scientist Renee Dufault, which appears in the journal...

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2009-01-08 16:05:00

Mercury pollution has already spurred public health officials to advise eating less fish, but it could become a more pressing concern in a warmer world.So suggests a paper that appears in a recent issue of the journal Oecologia.Sue Natali, a postdoctoral associate in botany at the University of Florida and the paper's lead author, compared mercury levels in soils under trees growing in air enriched with carbon dioxide to soil beneath trees in ambient air. Carbon dioxide, the main greenhouse...

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2008-12-13 14:15:54

The federal government has, for many years, recommended that pregnant women and young children limit their consumption of fish to avoid exposure to potentially harmful amounts of mercury. But there's now an ongoing debate between two top consumer protection agencies on whether that advice should be reconsidered to encourage all people to eat more fish, in order to promote healthy hearts. A new report from the Food and Drug Administration argues that the health benefits of eating fish outweigh...


Latest Methylmercury Reference Libraries

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2005-05-26 08:49:14

Mercury (element) Mercury, also called quicksilver, is a chemical element in the periodic table that has the symbol Hg (from the Greek hydrargyrum, for watery (or liquid) silver) and atomic number 80. A heavy, silvery, transition metal, mercury is one of only two elements that are liquid at room temperature (the other is bromine). Mercury is used in thermometers, barometers and other scientific apparatuses. Mercury is mostly obtained by reduction from the mineral cinnabar. Notable...

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Word of the Day
penuche
  • A fudgelike confection of brown sugar, cream or milk, and chopped nuts.
'Penuche' is a variant of 'panocha,' a coarse grade of sugar made in Mexico. 'Panocha' probably comes from the Spanish 'panoja, panocha,' ear of grain.
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