Sentences with phrase «nitrogen oxide gases»

CO2 from ships makes up roughly 3 percent of all human - emitted CO2 and almost 30 percent of smog - forming nitrogen oxide gases.

Automobile exhaust and industrial emissions release a family of nitrogen oxide gases (NOx) and volatile organic compounds (VOC), by - products of burning gasoline and coal.

FIELD FUMES California's agricultural regions are responsible for between 20 and 51 percent of the total emissions of nitrogen oxide gases in the state, new research finds.

The Golden State is at the vanguard in the United States in reducing auto emissions of nitrogen oxide gases, which help produce toxic smog and acid rain.

Not exact matches

Switching from coal to natural gas would reduce sulfur dioxide emissions by more than 90 percent and nitrogen oxide emissions by more than 60 percent.

Some of the nitrogen the crops do not absorb is converted into nitrous oxide, a greenhouse gas 310 times more powerful than carbon dioxide.

... A number of scientific studies indicate that most global warming in recent decades is due to the great concentration of greenhouse gases (carbon dioxide, methane, nitrogen oxides and others) released mainly as a result of human activity... Doomsday predictions can no longer be met with irony or disdain.

This is a matter of much concern as nitrogen oxides are greenhouse gases.

Reduces greenhouse gases, especially nitrous oxide, as no chemical nitrogen fertilizers are used and nutrient losses are minimized

The United States released 6,511 million metric tons of CO2 equivalent in 2016 when CO2, methane, nitrogen oxides and fluorinated gases are added together.

View a slide show of the world's first carbon capture and storage facility in operation The small stream of flue gas travels to the carbon - capture unit through plastic pipes reinforced with fiberglass and is cooled to between — 1 and 21 degrees Celsius from the 55 - degree C temperature at which it emerges from the other environmental technology add - ons that strip out the fly ash, sulfur dioxide and nitrogen oxides.

Secondly, nitrogen can be converted to nitrous oxide, which is an extremely potent greenhouse gas.

Many power plants already employ such ammonia in selective catalytic reduction units to strip nitrogen oxides out of the flue gas.

In a paper released for discussion in the journal Atmospheric Chemistry and Physics, Crutzen calculated that 3 to 5 percent of the nitrogen in the fertilizers used to raise crops for biofuels could end up in the atmosphere as nitrous oxide, a potent, long - lived greenhouse gas.

And a Nobel - prize winning chemist has publicized his findings that biofuels made from nitrogen - thirsty plants (like corn and canola) actually produce a net increase in greenhouse gas emissions, because they release nitrous oxide during their production.

The pollutant that has declined the least is ozone, a hard - to - control noxious gas formed when nitrogen oxides and volatile organic compounds react with sunlight.

The pollution is generally a mixture of gases — such as carbon monoxide, sulfur dioxide and nitrogen oxides — and particulate matter, microscopic solids or droplets that can be inhaled into the lungs.

Results were strongest for fine particulate matter and the traffic - related pollutant gases called oxides of nitrogen.

They rapidly detect and continuously respond to extremely small changes in the concentrations of gases including ammonia, carbon dioxide, and nitrogen oxide.

What proved possible included an extension of the Kyoto Protocol for a period of either five or seven years (excluding Canada, Japan and Russia but adding nitrogen trifluoride, used in semiconductor manufacture, to the list of gases covered — CO2, methane, nitrous oxide, sulfur hexafluoride, perfluorocarbons), a Green Climate Fund to help low - income countries cope (albeit without any actual funds yet), an Adaptation Committee to coordinate such efforts globally, rules for a global program to reduce deforestation and how to monitor such deforestation, and a Climate Technology Center that will help launch projects to reduce greenhouse gas emissions.

Any nitrogen not taken up by plants is met by soil microbes that turn the fertilizer into nitrous oxide, an ozone - depleting gas that is also 300 times more potent than carbon dioxide.

The catchall term «NOx gases» generally refers to two pollution - promoting gases: nitric oxide, or NO, and nitrogen dioxide, or NO2.

According to the U.S. Environmental Protection Agency, the process of manufacturing glass not only contributes its share of greenhouse gas emissions but also generates nitrogen oxides, sulfur dioxide and tiny particulates that can damage lung tissue when breathed in.

In addition to trading greenhouse gases, Evolution helps broker deals for biofuels, natural gas, the uranium fuel for nuclear reactors, renewable energy credits, air pollution permits for sulfur dioxide and nitrogen oxides, even insurance against bad weather.

Among biogenic volatile organic molecules is a class of compounds called monoterpenes, which react with ozone, hydroxyl radicals, nitrogen oxides, and other gases in the atmosphere.

Yet they are still active, chemical reactors really, generating hydrogen and various toxic gases such as oxides of nitrogen and organic vapours.

Natural gas produces a quarter of the nitrogen oxides emitted by coal and half the carbon dioxide for every unit of electricity generated.

(Industrial sectors such as oil and gas production don't emit ozone directly; rather, they emit compounds — such as nitrogen oxides and volatile organic compounds — that get converted to ozone in the atmosphere.)

In the mid-1980s, the company teamed up with another, Lean Burn Associates, to add a second component: a system which recirculates some exhaust gases into the air intake, which reduces emissions of oxides of nitrogen.

«It is true that there are other factors (such as volcanism, the changes in the orbit and the axis of the Earth, the solar cycle), but numerous scientific studies indicate that most of the global warming in recent decades is due to the large concentration of greenhouse gases (carbon dioxide, methane, nitrogen oxide and others) mainly emitted due to human activity.»

Moreover, if the new rice supplies less carbon and other nutrients to the soil, farmers might eventually want to use more nitrogen - based fertilizers, resulting in the release of nitrous oxide, another strong greenhouse gas.

Lightning is known to produce nitrogen oxides (NOx) that may react with other gases in the presence of sunlight to produce ozone.

The gas is then burnt in a way that produces low levels of nitrogen oxides.

-- For a covered entity described in section 700 (13)(C), 1 emission allowance for each ton of carbon dioxide equivalent of fossil fuel - based carbon dioxide, nitrous oxide, or any other fluorinated gas that is a greenhouse gas (except for nitrogen trifluoride), or any combination thereof, produced or imported by such covered entity during the previous calendar year for sale or distribution in interstate commerce.

Potent greenhouse gases, such as nitrogen oxides produced by denitrifying bacteria in overfertilized Chinese farming lands or methane released by archaea in the millions of ruminant animals in Australia and New Zealand, may have contributed substantially to global warming.

The specialized instruments onboard the aircraft sampled the plume for aerosol particle size distribution and composition as well as concentrations of pollutant gases such as sulfur dioxide, nitric oxide, nitrogen dioxide, ozone, and volatile organic compounds (VOCs).

In particular, nitrogen fertilizers enhance the emission of nitrous oxide — a powerful greenhouse gas in Earth's atmosphere.

Inert gases such as neon (Ne), helium (He), and krypton (Kr) and other constituents such as nitrogen oxides, compounds of sulfur, and compounds of ozone are found in lesser amounts.

At the same time, the burning of ever - increasing quantities of coal, oil and natural gas converts some atmospheric nitrogen into oxides of nitrogen (NOx).

The team observed that warmer temperatures significantly increase production of ozone, a colorless toxic gas, due to the reactions of certain chemical compounds with nitrogen oxides — greenhouse gases that come from vehicle tailpipes and power plant smokestacks.

nitrous oxide A gas composed of two atoms of nitrogen bound to one of oxygen.

This session solicits presentations examining all aspects of air emissions and / or air quality or climate impacts of methane, volatile organic compounds, and nitrogen oxides from all stages of oil and gas development.

The EGR system works by recirculating some of the exhaust gas back into the intake to lower combustion temperatures and cut emissions of nitrogen oxides.

The hot gases mingle with AdBlue, which breaks down into ammonia, which then splits nitric oxides down into nitrogen and water.

His Ford Fiesta ST rallycross car gives off baby - blue oxides of nitrogen, and when subjected to gas chromatography and mass spectrometry, it registers scent compounds closely matching those of the wild Gladiolus orchidiflorus.

Usually contains platinum, palladium and / or rhodium, which acts as a catalyst in a chemical reaction that converts unburned hydrocarbons, carbon monoxide and oxides of nitrogen into water vapor, carbon dioxide and other gases that are less toxic than untreated exhaust fumes

Catalytic Converter - Carbon monoxide, hydrocarbons and nitrogen oxides are converted into water vapor and less harmful gases.

- Carbon monoxide, hydrocarbons and nitrogen oxides are converted into water vapor and less harmful gases.

The systems employed by BLUETEC serve in particular to reduce nitrogen oxides (NOx)-- the only constituent part of the exhaust gases which, due to the design of the diesel, inherently lies above the value for petrol engines.

To reduce nitrogen oxide emissions, Mercedes - Benz first uses dual electrically controlled and cooled exhaust gas recirculation (EGR) which, depending on engine operating conditions, redirects up to 40 % of the exhaust gases back into the cylinders.