Related topics: nitrogen

Urban grime releases air pollutant when exposed to sunlight

In a first-of-its-kind study, researchers have determined that natural sunlight triggers the release of smog-forming nitrogen oxide compounds from the grime that typically coats buildings, statues and other outdoor surfaces ...

When trees aren't 'green'

Most of us don't consider forests a source of pollution. As natural bodies, they should be good for the environment. But a recent study in Japan shows that older cedar and cypress plantations are causing as much pollution ...

'Considerable scope' for improvement in agricultural pollution

During the industrial era, financial indicators were a company's primary measuring stick. But as the concept of sustainable development has gained relevance, a fundamental change in the assumptions underlying how businesses ...

More food, low pollution effort gains traction

Nitrogen fertilizers make it possible to feed more people in the world than ever before. However, too much of it can also harm the environment. Professor Eric Davidson, director of the University of Maryland Center for Environmental ...

Air pollutants could boost potency of common airborne allergens

A pair of air pollutants linked to climate change could also be a major contributor to the unparalleled rise in the number of people sneezing, sniffling and wheezing during allergy season. The gases, nitrogen dioxide and ...

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