News tagged with contaminants
Novel device removes heavy metals from water
An unfortunate consequence of many industrial and manufacturing practices, from textile factories to metalworking operations, is the release of heavy metals in waterways. Those metals can remain for decades, even centuries, ...
Dec 16, 2011 |
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Methane levels 17 times higher in water wells near hydrofracking sites
A study by Duke University researchers has found high levels of leaked methane in well water collected near shale-gas drilling and hydrofracking sites. The scientists collected and analyzed water samples from 68 private ...
May 09, 2011 |
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New type of biosensor is fast, super-sensitive
(Phys.org) -- A whole new class of biosensor that can detect exceptionally small traces of contaminants in liquids in just 40 minutes has been developed by a UNSW-led team of researchers.
Chemistry / Analytical Chemistry
May 29, 2012 |
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Radioactive bluefin tuna crossed the Pacific to US
Across the vast Pacific, the mighty bluefin tuna carried radioactive contamination that leaked from Japan's crippled nuclear plant to the shores of the United States 6,000 miles away - the first time a huge ...
May 28, 2012 |
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Probability of contamination from severe nuclear reactor accidents is higher than expected: study
Catastrophic nuclear accidents such as the core meltdowns in Chernobyl and Fukushima are more likely to happen than previously assumed. Based on the operating hours of all civil nuclear reactors and the number ...
Technology / Energy & Green Tech
May 22, 2012 |
3.7 / 5 (30) |
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New paper describes method for cleaning up nuclear waste
While the costs associated with storing nuclear waste and the possibility of it leaching into the environment remain legitimate concerns, they may no longer be obstacles on the road to cleaner energy.
Mar 20, 2012 |
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Study confirms oil from Deepwater Horizon disaster entered food chain in the Gulf of Mexico
Since the explosion on the BP Deepwater Horizon drilling rig in the Gulf of Mexico on April 20, 2010, scientists have been working to understand the impact that this disaster has had on the environment. For ...
Mar 20, 2012 |
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Researchers develop tools to make more complex biological machines from yeast
Scientists are one step closer to making more complex microscopic biological machines, following improvements in the way that they can "re-wire" DNA in yeast, according to research published today in the journal ...
Mar 19, 2012 |
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New study queries interactions of metal-reducing bacteria with plutonium oxide
(PhysOrg.com) -- Recent work by scientists at Pacific Northwest National Laboratory has shed new light on the perplexing environmental chemistry of plutonium. They demonstrated that under anaerobic, or oxygen-free, ...
Mar 19, 2012 |
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Responding to the radiation threat
Berkeley Lab researchers are developing a promising treatment for safely decontaminating humans exposed to radioactive actinides from a major radiation exposure event, such as a nuclear reactor accident or ...
Mar 06, 2012 |
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Road runoff spurring spotted salamander evolution
Spotted salamanders exposed to contaminated roadside ponds are adapting to their toxic environments, according to a Yale paper in Scientific Reports. This study provides the first documented evidence that a vertebrate has ...
Feb 01, 2012 |
4.7 / 5 (3) |
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Scientists reveal how cholera bacterium gains a foothold in the gut
(PhysOrg.com) -- A team of biologists at the University of York has made an important advance in our understanding of the way cholera attacks the body. The discovery could help scientists target treatments for the globally ...
Jan 27, 2012 |
4 / 5 (3) |
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How seawater could corrode nuclear fuel
Japan used seawater to cool nuclear fuel at the stricken Fukushima-Daiichi nuclear plant after the tsunami in March 2011 -- and that was probably the best action to take at the time, says Professor Alexandra ...
Jan 26, 2012 |
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In tackling lead pollution, fungi may be our friends
Fungi may be unexpected allies in our efforts to keep hazardous lead under control. That's based on the unexpected discovery that fungi can transform lead into its most stable mineral form. The findings reported online on ...
Jan 12, 2012 |
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Lead levels in drinking water spike when copper and lead pipes joined
Lead pipes once used routinely in municipal water distribution systems are a well-recognized source of dangerous lead contamination, but new research from Washington University in St. Louis suggests that the ...
Dec 15, 2011 |
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Pollution
Pollution is the introduction of contaminants into an environment that causes instability, disorder, harm or discomfort to the ecosystem i.e. physical systems or living organisms . Pollution can take the form of chemical substances, or energy, such as noise, heat, or light energy. Pollutants, the elements of pollution, can be foreign substances or energies, or naturally occurring; when naturally occurring, they are considered contaminants when they exceed natural levels. Pollution is often classed as point source or nonpoint source pollution. The Blacksmith Institute issues annually a list of the world's worst polluted places. In the 2007 issues the ten top nominees are located in Azerbaijan, China, India, Peru, Russia, Ukraine and Zambia.
For more information about Pollution, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
