News tagged with nitrogen oxides

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Wood chips help curb nitrate leaching

(PhysOrg.com) -- Wood chips can significantly stem nitrate flow from crop fields into the surrounding watershed, according to a U.S. Department of Agriculture (USDA) study.

Feb 20, 2012
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EU agency: air pollution costs exceed $134 billion

(AP) -- Air pollution isn't just harmful - it's expensive, resulting in health care and environmental costs of more than euro100 billion ($130 billion) in 2009, the European Union's environment agency said Thursday.

Nov 24, 2011
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Clean soot particle filters

The soot particle filters found on diesel vehicles are designed to ensure that no harmful particles make their way through the exhaust pipe. Often, though, the exhaust from newer-model engines is not hot enough ...

Oct 05, 2011
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Most accurate measurements of big-city pollution

(PhysOrg.com) -- One of NASA's satellites has provided the most detailed map yet of the pollution generated by some of the world’s biggest cities, and given an indication of the volume of emissions of ...

Sep 23, 2011 report
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