Sentences with phrase «for reactive nitrogen»

Using business - as - usual scenarios for reactive nitrogen creation and CO2 emissions, several projections suggest that O3 - related human mortality and crop damage will rise sharply in the next few decades, especially in tropical and subtropical regions where rising temperatures and rising NOx concentrations will interact synergistically to produce more O3.

«Freshwater ecosystems, including lakes, streams and wetlands, are a large global sink for reactive nitrogen,» says lead author Jacques Finlay, an associate professor in the College of Biological Sciences (CBS).

Not exact matches

Volcanic plumes were ideal crucibles for sparking stable nitrogen to form reactive compounds that led to the first organic molecules, chemists report in the 15 August Geophysical Research Letters.

In addition, particles of these clouds may descend and withdraw reactive nitrogen from the chlorine - activated layer — active chlorine is one of the substances mainly responsible for ozone destruction.

NOx gases represent some of the most reactive gases produced from diesel combustion and other fossil fuels, but the emissions limits for nitrogen dioxide are regularly exceeded, especially in urban areas.

The Integrated Nitrogen Committee of the EPA's science advisory board, which held a June public teleconference on the issue of reactive nitrogen in the environment, has generated a draft report that lays out the details, including management options for nitric acid rain.

«We show that uptake of atmospheric NH3 (ammonia) onto surfaces containing TiO2 (titanium dioxide) is not a permanent removal process, as previously thought, but rather a photochemical route for generating reactive oxides of nitrogen that play a role in air pollution and are associated with significant health effects,» the authors write.

The mitochondria in our cells are responsible for releasing energy from the molecules in our food, but they also unleash electron - stealing free radicals like reactive oxygen and reactive nitrogen species.

In order of reduction, they call for controlling nitrogen oxide emissions from the burning of fossil fuels using «maximum feasible reductions,» which could reduce reactive nitrogen emissions by 55 billion pounds of a year; increasing the efficiency of fertilizing crops (33 billion pounds a year); improved animal management policies (33 billion pounds); and ensuring that at least half the world's urban population has sewage treatment (11 billion pounds).

In this month's Science paper, the authors make four specific recommendations for reducing reactive nitrogen.

Leaching out of the soils, reactive nitrogen can make groundwater and surface water unfit for human consumption.

For example, early global chemical modelling results argued that global tropospheric ozone, a greenhouse gas, was controlled by emissions of the highly reactive gases nitrogen oxides (NOx), carbon monoxide (CO) and non-methane hydrocarbons (NMHC, also known as volatile organic compounds, VOC).