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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. Those high levels could also account for a significant amount of the mercury found in Arctic marine organisms.

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Argonne releases GREET 2020

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road, air, marine, and rail) and other end-use sectors, and energy systems. Users can evaluate the impacts on energy use, water consumption, and emissions of e-fuel production pathways using different hydrogen (H 2 ) and electricity sources. Methanol as marine fuels. Delivery of high-purity CO 2 for algae growth.

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The Case for Nuclear Cargo Ships

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“At the same time, it’s becoming apparent that alternative-fuel solutions we’re looking at have big drawbacks, and that producing these fuels will take a lot of green power that will be needed to replace coal and gas on shore. Another plus for nuclear-propelled ships is easy access to an endless supply of cooling water.

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CleanFUEL USA partners with Freightliner on new 8.0L propane LPI medium-duty engine

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This partnership expands use of GM’s 8L long-block engine, originally intended for industrial and marine markets, to new on-highway applications of up to 33,000 lb GVW (gross vehicle weight). Conversion kits also will be available to switch medium-duty gasoline vehicles to run on propane. primarily produce bio-propane. (JGS)

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Start-up commercializing NC State technology for drop-in biofuels; full commercial production targeted for 2016

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Two product streams exit this reactor, free fatty acids (mixed with water) and sweet water (glycerol mixed with water). Water is removed from the free fatty acid (FFA) stream prior to the next processing step: deoxygenation. NCSU had earlier licensed the technology to Diversified Energy ( earlier post ). Click to enlarge.

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Researchers Discover New Chemistry for Ozone Formation; Not Yet Monitored or Incorporated into Atmospheric Models

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Direct sources of gaseous HCl include garbage burning, incineration of municipal and medical wastes, burning of biomass, agricultural products and coal, and industrial processes, e.g., semiconductor and petroleum manufacturing. They also found that water “ has a remarkable effect ” on the newly discovered chemistry.

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Final session on international mercury convention this week expected to culminate in agreement; UNEP Global Mercury Assessment 2013 finds industrial source Hg emissions may be rising

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Unintentional emission sectors: Coal burning, ferrous- and non-ferrous (Au, Cu, Hg, Pb, Zn) metal production, cement production. The session is expected to culminate in the adoption of a new convention by the 147 states attending the session to reduce mercury emissions and releases to the air, water and land. Source: UNEP.

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