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  • 60秒科学:Mercury Fillings Seem Safer over Time

    Mercury Fillings Seem Safer over Time A study in the journal Chemical Research in Toxicology finds that mercury on the surface of dental fillings slowly turns to an inert sulfide compound, which should keep the mercury from harming the nervous system...

  • VOA常速英语2008年-Mercury Seen in New Light

    By Paul Sisco Washington, DC 15 February 2008 Scientists have started analyzing data and images acquired when the Messenger space probe passed within 200 kilometers of the planet Mercury last month. It was the first flyby of the solar system's inner-...

  • 2005年NPR美国国家公共电台三月-Studies Find High Mercury Levels in the W

    Studies that will be released today show that fish, birds and mammals in New England have significant amounts of mercury in their bodies. The studies find the toxic metal in some unexpected habitats and they suggest that power plants in the Midwest a...

  • 彭蒙惠英语:The Mercury Mess

    The Mercury Mess 2 How can we solve the problem? Unfortunately, technologies for reducing mercury emissions from power plants have a long way to go, and even the best U.S. controls won’t touch the c...

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