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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.
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.
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.
under illumination from a low pressure mercury lamp. Results from using the ultraviolet (UV) photolytic process for production of hydrogen from aqueous Na 2 SO 3 solutions showed that the quantum efficiency of hydrogen production can reach 14.4% Huang et al. Cunping Huang, Clovis A. Article ASAP doi: 10.1021/es903766w.
The least expensive way for the Western US to reduce greenhouse gas emissions enough to help prevent the worst consequences of global warming is to replace coal with renewable and other sources of energy that may include nuclear power, according to a new study by University of California, Berkeley, researchers. —Daniel Kammen.
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. Duke Professor Emeritus of Biogeochemistry at Duke’s Nicholas School of the Environment.
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. Most of the iron in our blood and the sulfur in our amino acids originated in stars that detonated billions of years ago.
ORNL’s current mission is to conduct basic and applied research and development to create scientific knowledge and technological solutions that strengthen the nation’s leadership in key areas of science; increase the availability of clean, abundant energy; restore and protect the environment; and contribute to national security.
Stanford University has launched a new research initiative to study comprehensively the development and use of natural gas. The new program will expand Stanford’s research on energy and the environment by focusing additional resources on the growing importance of natural gas. Previously the Robert R.
The canary box “is a very logical engineering solution to a problem,” says Alan Mantooth , an IEEE Fellow and a professor of electrical engineering at the University of Arkansas. Scientists have been “ radiation hardening ” electronics—designing them to function in a radioactive environment—since the 1960s.
The Frasch process can be tremendously damaging to the surrounding environment and mineworkers’ health. The minerals that contain sulfur often also tend to contain toxic metals like mercury, arsenic, and thallium. Jean-Michel Lavoie, University of Sherbrooke In swept the fossil fuel industry’s waste to save the day.
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. With the ambient environment as a hot reservoir, we can use the coldness from deep space to create the cold reservoir.
Sure, that would be nice, but if you invented an invisibility cloak that required some mercury and neodymium to manufacture would you toss the recipe? That feels universal enough that I’m tempted to call it Holson’s Law of Tolerable API Design. Famously hard. 4 We don’t have any headroom to sacrifice power and effectiveness for ease.
With the global recession making drivers think about their wallets and the environment ahead of power and good looks, a green car race has emerged with manufacturers keen to offer more fuel efficient and environmentally friendly vehicles than their rivals. The Green Piece Column: Tuesday 27 October. So who is leading the green car race?
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. to 10-fold depending on time spent foraging in different environments.
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.
Cischke, Ford senior vice president for sustainability, environment and safety engineering. "By San Jose Mercury News ). But I dont think that would contribute to the global environment, to reduce [global warming gas] emissions." ( Wall Street Journal ). Does it make good business sense, and how does it affect the environment?"
The potential and realized emissions of pollutants, including greenhouse gases and mercury, are also contentious. Funding for the research was provided by Environment Canada and the Natural Sciences and Engineering Research Council of Canada. Source: Kurek et al. Click to enlarge. —Kurek et al. Joshua Kurek, Jane L.
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