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Chalmers team develops method to reduce levels of mercury in sulfuric acid

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Researchers at Chalmers University of Technology, Sweden, have developed a method that can reduce the levels of mercury in sulfuric acid by more than 90%, even from low levels. It is therefore a worldwide challenge that sulfuric acid often contains one of the most toxic substances: mercury.

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EPA proposing mercury rule for taconite iron ore processing plants

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The US Environmental Protection Agency (EPA) is proposing amendments to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for taconite iron ore processing plants that include new emission standards for mercury as well as revising the existing emission standards for hydrogen chloride and hydrogen fluoride. formaldehyde).

Mercury 199
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Nations agree on global, legally binding treaty on mercury emissions: Minamata Convention on Mercury

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At the conclusion of the International Negotiating Committee on Mercury ( INC5 ) meeting in Geneva ( earlier post ), nations agreed on a global, legally-binding treaty to prevent mercury emissions and releases. The scope of the new treaty which puts in controls and also reduction measures in respect to mercury is as follows: Products.

Mercury 250
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Inorganic mercury converted to more toxic and bio-accumulative monomethylmercury in ocean waters, possibly by microbes

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A team led by the University of Alberta has confirmed that inorganic mercury (Hg) found worldwide in ocean water is transformed into monomethylmercury (MMHg)—a potent and bio-accumulative neurotoxin—in the seawater. In a 1991 paper discussing concerns with mercury and monomethylmercury, William F. Fitzgerald and Thomas W.

Mercury 210
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EPA issues first National Standards for mercury and air toxics pollution from power plants

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The US Environmental Protection Agency (EPA) has issued the Mercury and Air Toxics Standards (MATS), the first national standards for power plant emissions of mercury and toxic air pollutants (also known as hazardous air pollutants, HAPs) such as arsenic, acid gas, nickel, selenium, and cyanide. fossil-fuel-fired power plants.

Mercury 199
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UN: global e-waste surging; up 21% in 5 years

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E-waste is a health and environmental hazard, containing toxic additives or hazardous substances such as mercury, which damages the human brain and/or coordination system. E-waste is a health and environmental hazard, containing toxic additives or hazardous substances such as mercury, which damages the human brain and/or coordination system.

Waste 259
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EPA awards $6M in research funding to improve air quality models

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Harvard University to improve modeling of isoprene, halogen, and mercury chemistry; and increase the computational efficiency of chemical mechanisms in a widely used model to support air quality management.

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