Mercury
Chemical Element
Lights that are better for the environment...fluorescent lights, or CFLs. These have little filaments at the ends, which turn on only briefly at start-up to vaporize some mercury and produce what is basically a long spark along the length of a tube filled with low-pressure mercury... In this article: Mercury, Melting point, Tungsten, Oxygen, CFL, Northeastern University, and The Boston Globe |
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Ft. Worth Star-Telegram | 4 days ago
Experts say not to wait for mercury-free shots
FORT WORTH - Some parents are searching for preservative-free H1N1 vaccines for their youngsters because they worry about the mercury-based preservative. Supplies of preservative-free injectable vaccine are trickling in, and it is...
In this article: Asthma and Fort Worth
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San Jose Mercury News | 4 days ago
Study: Mercury levels similar for children with, without autism
...however, the two groups had similar levels of blood mercury. The study, however, did not examine whether mercury plays a role in causing autism because mercury was measured after the diagnosis was made. "The bottom line is that...
In this article: Autism
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PR Newswire: Health / Biotech | 5 days ago
Breakthrough Reached on 'Phasing Down' Dental Mercury Use at W.H.O. Expert Meeting, Says Green Groups
...in Health Care" states that: "Mercury is highly toxic, especially when metabolized into methyl mercury ... Recent studies suggest that mercury may have no threshold below which some adverse effects do not occur." Editors Notes:
In this article: UNEP, European Environmental Bureau, Geneva, Methylmercury, and U.S.
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news-record | 5 days ago
Mercury found in fish in Lake Gaston
...and largemouth bass in Lake Gaston, which is located between north-central North Carolina and south-central Virginia. Elevated levels of mercury have recently been found in walleye in the lake, according to a news release. Previous studies...
In this article: Lake Gaston, Walleye, North Carolina, Fossil fuel, Natural gas, Roanoke River, and Northampton
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PR Newswire: Energy Industry | 5 days ago
Mercury Contamination of Fishes to Prompt Mercury Emissions Legislation
...Environmental Products & Services, Surveys, Polls and Research, Federal Executive Branch & Agency News Mercury Contamination of Fishes to Prompt Mercury Emissions Legislation FARMINGDALE, N.Y., Nov. 18 /PRNewswire-FirstCall/ -- Cemtrex...
In this article: EPA, Coal, Carbon, Safe harbor, Kyoto Protocol, Pollution, and Clean Water Act
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Virginia Pilot | 5 days ago
Report confirms mercury's spread
...already stacked up at various government agencies, medical associations and environmental groups, the conclusion of a new EPA study on mercury-tainted fish wasn't surprising. But the findings should generate a greater sense of urgency for...
In this article: EPA, Coal, Environmental Protection Agency, and U.S. Geological Survey
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Ft. Worth Star-Telegram | November 12, 2009
Quicksilver says West Texas Barnett field more difficult than North Texas’ shale
Quicksilver says West Texas Barnett field more difficult than North Texas' shale Quicksilver Resources' drilling program in the natural gas-rich Barnett Shale in North Texas "is really going well," propelling the company's rising...
In this article: Quicksilver, Natural gas, Ennis, Texas, and Fort Worth
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New York Times | November 12, 2009
G.M. Agrees to Recycle Mercury Switches, for Now
...liquid at standard room temperature, is notoriously hard to handle - in more ways than one. Until 2003, automakers used highly toxic mercury in switches that controlled trunk and under-hood lights, as well as antilock brake systems. Since...
In this article: General Motors, Michigan, E-mail, Bankruptcy, MSN Money, and Environmental Protection Agency
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Chigago Tribune | November 10, 2009
Mercury-tainted fish in 49% of lakes
Fish with potentially harmful levels of mercury were found in 49 percent of U.S. lakes and reservoirs studied, the Environmental Protection Agency said. Lakes in almost half of the states had fish contaminated by toxic chemicals such as...
In this article: EPA, Coal, Fossil fuel, Pesticide, Pollution, Halloween, Chicago Tribune, Clean Water Act, and Breast cancer
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Medical News Today | November 10, 2009
Form Of Mercury In Older Dental Fillings Unlikely To Be Toxic
While the fresh fillings contained metallic mercury, which can be toxic, aged fillings contained a form of mercury called beta-mercuric sulfide or metacinnabar which is unlikely to be toxic in the body. For this reason, grinding or...
In this article: Medical advice, Canadian Institutes of Health Research, Peroxide, Garlic, University of Saskatchewan, and Sulfide
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Description from Wikipedia:
Mercury (IPA: /ˈmɜrkjʊri/), also called quicksilver or hydrargyrum, is a chemical element with the symbol Hg (Latinized Greek: hydrargyrum, meaning watery or liquid silver) and atomic number 80. A heavy, silvery d-block metal, mercury is one of five metals that are liquid at or near room temperature and pressure. The others are the metals caesium, francium, gallium, and rubidium. Of these, only mercury is liquid at standard conditions for temperature and pressure.
Mercury is used in thermometers, barometers, manometers, sphygmomanometers, float valves, and other scientific apparatus, though concerns about the element's toxicity have led to mercury thermometers and sphygmomanometers being largely phased out in clinical environments in favour of alcohol-filled, digital, or thermistor-based instruments. It remains in use in a number of other ways in scientific and scientific research applications, and in amalgam material for dental restoration. Mercury is mostly obtained by reduction from the mineral cinnabar.
Mercury occurs in deposits throughout the world and it is harmless in an insoluble form, such as mercuric sulfide, but it is poisonous in soluble forms such as mercuric chloride or methylmercury.
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