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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. 159-166.
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.
New research from a team at the University of Alberta, Canada, finds that Alberta’s oilsands industry is releasing more pollutants into the Athabasca River, its tributaries and its watershed than previously estimated. The pollutants found include mercury, arsenic, lead and cadmium. Kelly et al.
More forms of mercury can be converted to methylmercury—a form of mercury that can be taken into the food chain and eventually can result in mercury-contaminated fish—than previously thought, according to a study led by a team of researchers from Oak Ridge National Laboratory (ORNL) published in Nature Geoscience.
Coal-powered synthetic natural gas (SNG) plants being planned in China would produce seven times more greenhouse gas emissions than conventional natural gas plants, and use up to 100 times the water as shale gas production, according to a new study by Duke University researchers published in the journal Nature Climate Change.
UOP’s separation technology and equipment remove contaminants such as water, carbon dioxide and sulfur compounds (hydrogen sulfide, mercaptans, etc.) Its gas technologies extract water, mercury, sulfur compounds, carbon dioxide and other contaminants from raw natural gas.
Renewable Energy Institute International (REII), Toledo’s Red Lion Bio-Energy , the University of Toledo, Midwest Terminals/Port of Toledo, SolarTurbines/Caterpillar, and other partners are working to build a biomass-to-liquids demonstration plant in South Toledo, Ohio.
In a new study, Harvard University researchers found more than 90% of potential new Canadian hydroelectric projects are likely to increase concentrations of the neurotoxin methylmercury (MeHg) in food webs near indigenous communities. The methylmercury moves into the water and animals, magnifying as it moves up the food chain.
Breathing vanadium-rich aerosols has unknown but potentially adverse health impacts, according to the researchers, who note that the human impacts on the global vanadium cycle parallel impacts on the global cycles for lead and mercury. Excessive V in air and water has potential, but poorly documented, consequences for human health.
Stanford University has launched a new research initiative to study comprehensively the development and use of natural gas. Compared with burning coal, natural gas emits about half the carbon dioxide and substantially less soot, mercury and sulfur. —Mark Zoback, a professor of geophysics and NGI’s director. Earlier post.).
Supernova explosions, the catastrophic self-destruction of certain types of worn-out stars, are intimately tied to life on Earth because they are the birthplaces of heavy elements across the universe. Mirrors could not achieve the same focusing precision as the previous lens-plus-water combination.
research facilities for scientists from universities, industry, and other laboratories, as well as to ORNL researchers: Building Technologies Research and Integration Center (BTRIC). In the case of ORNL’s SNS, the target is mercury. The adsorbed water allows detection by neutrons. Specs for the 1.4 mA, 60 Hz rate.
In 1894, a German chemist named Herman Frasch plotted a process of tapping a sulfur-containing mineral deposit by pumping it with superheated water. The minerals that contain sulfur often also tend to contain toxic metals like mercury, arsenic, and thallium. The sulfur will melt and bubble up to the surface.
But we have demonstrated that by directly using power generated by the cold universe, we can chill water to cool buildings by as much as 5 ºC during the day without electricity and light the night without wires or batteries. In the case of moving water, a turbine harvests the energy in the flow to generate hydroelectricity.
At Northeastern University , in Boston, Matteo Rinaldi's group has demonstrated an event-driven sensor that could help detect a forest fire by reacting to the infrared light emitted from a hot object. Matthew Modoono/Northeastern University. Top: David Little/The Mercury News/Getty Images; Bottom: PurpleAir.
The violent vertical thrusts of the quake ruptured gas lines and water mains. Palmieri’s seismograph consisted of U-shaped tubes filled with mercury. When the ground shook, the mercury would close an electrical circuit and stop an attached clock. Great Kanto Earthquake Memorial Museum The estimated 7.9-magnitude
Fuzzy theory is wrong, wrong, and pernicious,” said William Kahan, a highly regarded professor of computer sciences and mathematics at the University of California at Berkeley in 1975. Kalman in 1972, who is now a professor at Florida State University in Tallahassee. The denunciations were sometimes extreme. But Zadeh never wavered.
Collectively, these industrial activities yield significant landscape disturbance and habitat loss and add to the controversy regarding water quantity and quality issues. The potential and realized emissions of pollutants, including greenhouse gases and mercury, are also contentious. Source: Kurek et al. Click to enlarge.
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