Recent advances in environmental technology have spurred the development of integrated biological and chemical processes to mitigate nitrogen oxides (NOx) emissions from flue gas. These processes ...

Along the route from tailpipe through atmosphere, nitrogen oxides - collectively known as NOx compounds - react with hydrocarbons to form a variety of nitrogen-containing pollutants, including nitric ...

Industry produces gases that are harmful to both humans and the environment and therefore must be prevented from escaping. These include nitric oxide and nitrous oxide, the latter also known as ...

Coal is abundant and cheap, but burning it is a dirty business. This week researchers at Ohio State University announced a milestone in the development of a far cleaner way to use the energy in coal—a ...

Climate researchers are warning that efforts to reduce air pollution could, if not well designed, make global warming worse. Limiting emissions of manmade nitrogen oxides, a strategy to control ozone ...

RICHLAND, Wash. -- The newest catalytic converters in diesel engines blast away a pollutant from combustion with the help of ammonia. Common in European cars, the engines exhaust harmless nitrogen and ...