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News tagged with pollutant

Rising air pollution worsens drought, flooding, study shows

Increases in air pollution and other particulate matter in the atmosphere can strongly affect cloud development in ways that reduce precipitation in dry regions or seasons, while increasing rain, snowfall ...

Space & Earth / Earth Sciences

created Nov 13, 2011 | popularity 4.6 / 5 (9) | comments 3 | with audio podcast

Shake, rattle and ... power up? A new MEMS device generates energy from small vibrations

Today's wireless-sensor networks can do everything from supervising factory machinery to tracking environmental pollution to measuring the movement of buildings and bridges. Working together, distributed sensors ...

Physics / General Physics

created Sep 14, 2011 | popularity 5 / 5 (2) | comments 2 | with audio podcast

Kitchen exhaust fans vary in effectiveness in reducing indoor air pollution

(Phys.org) -- Cooking exhaust hoods designed for home kitchens vary widely in their ability to capture and vent away the air pollutants generated by the gas burners on cook stoves, according to a study by ...

Chemistry / Other

created May 31, 2012 | popularity 2 / 5 (1) | comments 1 | with audio podcast

Light pollution transforming insect communities

(Phys.org) -- Street lighting is transforming communities of insects and other invertebrates, according to research by the University of Exeter. Published today in the journal Biology Letters, the study shows ...

Biology / Ecology

created May 23, 2012 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Using graphene, scientists develop a less toxic way to rust-proof steel

(Phys.org) -- University at Buffalo researchers are making significant progress on rust-proofing steel using a graphene-based composite that could serve as a nontoxic alternative to coatings that contain hexavalent ...

Nanotechnology / Nanomaterials

created May 18, 2012 | popularity 4.5 / 5 (6) | comments 2 | with audio podcast

Americans support national clean-energy standard: study

The average U.S. citizen is willing to pay 13 percent more for electricity in support of a national clean-energy standard (NCES), according to Yale and Harvard researchers in Nature Climate Change.

Technology / Energy & Green Tech

created May 13, 2012 | popularity 3.2 / 5 (9) | comments 34 | with audio podcast

'Warming hole' delayed climate change over eastern United States: study

Climate scientists at the Harvard School of Engineering and Applied Sciences (SEAS) have discovered that particulate pollution in the late 20th century created a "warming hole" over the eastern United States—that ...

Space & Earth / Earth Sciences

created Apr 26, 2012 | popularity 4.1 / 5 (24) | comments 197 | with audio podcast

Long term North Atlantic surface temperature fluctuations linked to aerosols

(PhysOrg.com) -- Manmade pollution doesn’t always cause atmospheric warming, a group of researchers from Britain’s Met Office Hadley Centre, write in their paper published in the journal Nature, someti ...

Space & Earth / Earth Sciences

created Apr 05, 2012 | popularity 4.6 / 5 (9) | comments 26 | with audio podcast report

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 ...

Space & Earth / Environment

created Mar 20, 2012 | popularity 4.2 / 5 (13) | comments 2 | with audio podcast

Cap and trade programs do not provide sufficient incentives for innovation: research

Cap and trade programs to reduce emissions do not inherently provide incentives to induce the private sector to develop innovative technologies to address climate change, according to a new study in the journal Proceedings of ...

Space & Earth / Environment

created Mar 15, 2012 | popularity 4 / 5 (8) | comments 42 | with audio podcast

Spallation Neutron Source puts the squeeze on methane hydrate cages

(PhysOrg.com) -- Imagine a robot sent out on the prowl on this energy hungry planet looking for methane, the principal component of what we call "natural gas" and probably the most abundant organic compound ...

Chemistry / Materials Science

created Mar 15, 2012 | popularity 4.5 / 5 (4) | comments 0 | with audio podcast

Natural levels of nitrogen in tropical forests may increase vulnerability to pollution

(PhysOrg.com) -- Waterways in remote, pristine tropical forests located in the Caribbean and Central America contain levels of nitrogen comparable to amounts found in streams and rivers flowing through polluted forests in ...

Space & Earth / Environment

created Mar 06, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast

New family of legless amphibians found in India

Since before the age of dinosaurs it has burrowed unbothered beneath the monsoon-soaked soils of remote northeast India - unknown to science and mistaken by villagers as a deadly, miniature snake.

Biology / Plants & Animals

created Feb 22, 2012 | popularity 5 / 5 (9) | comments 3

China's pollution related to E-cars may be more harmful than gasoline cars, researchers find

Electric cars have been heralded as environmentally friendly, but findings from University of Tennessee, Knoxville, researchers show that electric cars in China have an overall impact on pollution that could be more harmful ...

Space & Earth / Environment

created Feb 13, 2012 | popularity 3.3 / 5 (13) | comments 16 | with audio podcast

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 ...

Nanotechnology / Nanophysics

created Feb 09, 2012 | popularity 5 / 5 (3) | comments 1 | with audio podcast

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.