Sentences with phrase «reactive gases nitrogen»

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).

Not exact matches

Like Earth's atmosphere, Titan's is largely nitrogen plus one more - reactive compound and some trace gases (see diagram).

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.

On Pluto, ultraviolet light from the sun breaks apart gas molecules like nitrogen and methane to create reactive ions.

Many scientists now believe that several of these gases, including methane and nitrogen oxides, are among the reactive gases that can directly or indirectly deplete ozone, Dr. Setzer said.

More nitrogen is now converted into reactive forms by industry than all by all the planet's natural processes and our industrial and agricultural processes are causing a continual build - up of long - lived greenhouse gases to levels unprecedented in at least the last 800,000 years and possibly much longer.

These human forcings include greenhouse gas emissions (e.g. CO2, methane, CFCs), aerosol emissions and deposition [e.g., black carbon (soot), sulfates, and reactive nitrogen], and changes in land use and land cover.

Emissions of carbon dioxide, methane, nitrous oxide and of reactive gases such as sulphur dioxide, nitrogen oxides, carbon monoxide and hydrocarbons, which lead to the formation of secondary pollutants including aerosol particles and tropospheric ozone, have increased substantially in response to human activities.