News tagged with pollutant
Inspired by steel, nanomanufacturing gets wear-resistant carbide tip
(PhysOrg.com) -- Scientists at the University of Pennsylvania, the University of Wisconsin-Madison and IBM Research - Zurich have fabricated an ultrasharp silicon carbide tip possessing such high strength ...
Feb 09, 2012 |
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Bird populations near Fukushima are more diminished than expected
(PhysOrg.com) -- Low-level radiation in Fukushima Prefecture appears to have had immediate effects on bird populations, and to a greater degree than was expected from a related analysis of Chernobyl, an international ...
Feb 09, 2012 |
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Study shows calories drive earlier puberty
(Medical Xpress) -- Environmental pollutants, eating habits, lack of exercise and genetic traits have all been raised as possible causes of earlier puberty onset in girls in recent years.
Feb 09, 2012 |
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Yangtze river pollution sparks panic in China
A cargo ship spilled acid into China's longest river last week, contaminating tap supplies and sparking a run on bottled water in eastern China, the government and state media said.
Feb 08, 2012 |
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India's air the worst, says annual study
India has the worst air quality in the world, poorer even than its neighbour China, according to an annual survey based at Yale and Columbia universities in the United States.
Feb 02, 2012 |
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Malaysia grants license to Aussie rare earth plant
(AP) -- Malaysia on Wednesday granted a license for an Australian mining company to operate the first rare earths plant outside China in years, despite public protests over fears of radioactive contamination.
Feb 01, 2012 |
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Food crops damaged by pollution crossing continents
(PhysOrg.com) -- Man-made air pollution from North America causes Europe to lose 1.2 million tonnes of wheat a year, a new study has found.
Jan 30, 2012 |
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Beijing air pollution soars with fireworks smoke
(AP) -- Clouds of smoke from Lunar New Year fireworks sent air pollution readings soaring in the more sensitive measurement system Beijing started using a little more than a week ago, reports said Sunday.
Jan 29, 2012 |
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The proof is in the clouds
For most people, clouds are just an indication of whether it's a "good" or "bad" day. A team of scientists from Pacific Northwest National Laboratory found that certain clouds hold the key to climate behavior ...
Space & Earth / Earth Sciences
Jan 26, 2012 |
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Britain ranks top risks posed by climate change
(AP) -- Britain says coastlines, wildlife and even the nation's most famous dish are under threat from climate change in its first-ever national assessment of likely risks.
Jan 26, 2012 |
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Asthma rate and costs from traffic-related air pollution are much higher than once believed
A research team led by University of Massachusetts Amherst resource economist Sylvia Brandt, with colleagues in California and Switzerland, have revised the cost burden sharply upward for childhood asthma and for the first ...
Jan 26, 2012 |
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Beijing releases pollution data; US figures higher
(AP) -- Caving to public pressure, Beijing environmental authorities started releasing more detailed air quality data Saturday that may better reflect how bad the Chinese capital's air pollution is. But one ...
Jan 21, 2012 |
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Mysterious flotsam in Gulf of Mexico came from Deepwater Horizon rig, study finds
Shortly after the Deepwater Horizon disaster, mysterious honeycomb material was found floating in the Gulf of Mexico and along coastal beaches. Using state-of-the-art chemical forensics and a bit of old-fashioned detective ...
Jan 19, 2012 |
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Low temperatures enhance ozone degradation above the Arctic
Extraordinarily cold temperatures in the winter of 2010/2011 caused the most massive destruction of the ozone layer above the Arctic so far: The mechanisms leading to the first ozone hole above the North Pole ...
Space & Earth / Earth Sciences
Jan 19, 2012 |
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Sea temperature changes can forecast South American wildfires, study finds
(PhysOrg.com) -- As a boy in coastal San Diego in the 1980s, Jim Randerson loved the exotic fish, birds and even tides of red crustaceans that washed ashore during storms created by temperature changes in ...
Space & Earth / Earth Sciences
Jan 18, 2012 |
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Pollutant
A pollutant is a waste material that pollutes air, water or soil, and is the cause of pollution.
Three factors determine the severity of a pollutant: its chemical nature, its concentration and its persistence. Some pollutants are biodegradable and therefore will not persist in the environment in the long term. However the degradation products of some pollutants are themselves polluting such as the products DDE and DDD produced from degradation of DDT
For more information about Pollutant, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
