News tagged with nitrogen oxides

Laser sparks revolution in internal combustion engines

For more than 150 years, spark plugs have powered internal combustion engines. Automakers are now one step closer to being able to replace this long-standing technology with laser igniters, which will enable cleaner, more ...

Physics / Optics & Photonics

created Apr 20, 2011 | popularity 4.7 / 5 (27) | comments 34 | with audio podcast

City lights make air pollution worse

(PhysOrg.com) -- A new study by scientists in Los Angeles, California has found that bright city lights makes air pollution worse because the glare of the lights interferes with chemical reactions that clean ...

Space & Earth / Environment

created Dec 16, 2010 | popularity 4.7 / 5 (15) | comments 1 | with audio podcast report

Switching from coal to natural gas would do little for global climate, study indicates

Although the burning of natural gas emits far less carbon dioxide than coal, a new study concludes that a greater reliance on natural gas would fail to significantly slow down climate change. The study appears ...

Space & Earth / Environment

created Sep 08, 2011 | popularity 4.6 / 5 (13) | comments 51 | with audio podcast

Engineers use rocket science to make wastewater treatment sustainable

Within the sludge of wastewater treatment plants is an invisible world teeming with microbes. Here, diverse species of bacteria convert solid and liquid wastes into gases, some of which contribute to global ...

Technology / Engineering

created Jul 26, 2010 | popularity 5 / 5 (9) | comments 2 | with audio podcast

Fool's gold may prove an unlikely alternative to overexploited catalytic materials

Catalytic materials, which lower the energy barriers for chemical reactions, are used in everything from the commercial production of chemicals to catalytic converters in car engines. However, with current catalytic materials ...

Chemistry / Materials Science

created Feb 10, 2012 | popularity 4.4 / 5 (10) | comments 9 | with audio podcast

City buses turn to sewage for 'clean' fuel

Can the key to "clean" energy be found down in the sewer? That's the idea in Oslo, where city officials soon plan to introduce buses that run on biofuels extracted from human waste.

Technology / Energy & Green Tech

created Mar 22, 2009 | popularity 4.1 / 5 (10) | comments 1

Pollution from Asia Circles Globe at Stratospheric Heights

(PhysOrg.com) -- The economic growth across much of Asia comes with a troubling side effect: pollutants from the region are being wafted up to the stratosphere during monsoon season. The new finding, in a ...

Space & Earth / Earth Sciences

created Mar 25, 2010 | popularity 4.2 / 5 (9) | comments 0 | with audio podcast

Researchers invent a switch that could improve electronics

Researchers at the University of Pittsburgh have invented a new type of electronic switch that performs electronic logic functions within a single molecule. The incorporation of such single-molecule elements could enable ...

Nanotechnology / Nanophysics

created Dec 01, 2011 | popularity 4.8 / 5 (8) | comments 1 | with audio podcast

New study sheds light on evolutionary origin of oxygen-based cellular respiration

Researchers at the RIKEN SPring-8 Center in Harima, Japan, have clarified the crystal structure of quinol dependent nitric oxide reductase (qNOR), a bacterial enzyme that offers clues on the origins of our ...

Chemistry / Biochemistry

created Jan 22, 2012 | popularity 4.9 / 5 (7) | comments 0 | with audio podcast

Cars running on ethanol can pollute too: Brazil study

Cars running on sugarcane ethanol can produce as many harmful pollutants as those using ordinary petrol (gasoline), according a study published by Brazil's environment ministry.

Space & Earth / Environment

created Sep 17, 2009 | popularity 3.7 / 5 (9) | comments 8

The smell of salt air, a mile high and 900 miles inland

The smell of sea salt in the air is a romanticized feature of life along a seacoast. Wind and waves kick up spray, and bits of sodium chloride - common table salt - can permeate the air.

Space & Earth / Earth Sciences

created Mar 10, 2010 | popularity 4.6 / 5 (7) | comments 2 | with audio podcast

Anthropogenic nitrogen plays a double role in climate change

Human nitrogen additions to the soil may reinforce the greenhouse effect.  Nitrogen additions tend to boost plant growth, so that terrestrial ecosystems absorb more carbon dioxide from the atmosphere. ...

Space & Earth / Environment

created Aug 04, 2011 | popularity 4.1 / 5 (7) | comments 14 | with audio podcast

Breathing the filth: Hydrocarbons in the air are more toxic than oil in the gulf

What a relief it will be when the oil leak in the Gulf of Mexico gets plugged, ending the colossal mess caused by gushing crude. Or will it?

Space & Earth / Environment

created Jul 10, 2010 | popularity 3.5 / 5 (8) | comments 5

German researchers demonstrate diesel truck engine with barely measurable emissions

Just three months after the Euro 5 Norm for exhaust emissions went into force for all new car models, researchers at the Technische Universitaet Muenchen (TUM, Germany) have demonstrated an engine that is ...

Technology / Engineering

created Dec 07, 2009 | popularity 3.7 / 5 (7) | comments 1

Fly the eco-friendly skies

In what could set the stage for a fundamental shift in commercial aviation, an MIT-led team has designed a green airplane that is estimated to use 70 percent less fuel than current planes while also reducing ...

Technology / Engineering

created May 17, 2010 | popularity 4.3 / 5 (6) | comments 2

Nitrogen oxide

The term nitrogen oxide typically refers to any binary compound of oxygen and nitrogen, or to a mixture of such compounds:

(Note that the last three are unstable.)

Chemical reactions that produce nitrogen oxides often produce several different compounds, the proportions of which depend on the specific reaction and conditions. For this reason, secondary[clarification needed] production of N2O is undesirable, as NO and NO2 — which are extremely toxic — are liable to be produced as well.

For more information about Nitrogen oxide, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

Related topics: air pollution