Sentences with phrase «oxides of nitrogen emissions»

Our driving school vehicles are extremely clean to operate, producing 97 percent less hydrocarbon and oxides of nitrogen emissions than vehicles that meet today's nationwide top emissions standard.

The move toward Tier 4 is made up of a 45 percent reduction in the oxides of nitrogen emissions compared to the current Tier 2 standard and an 85 percent reduction in particulate matter emissions based on preliminary analysis.

Not exact matches

As the world began to learn in September, when the U.S. Environmental Protection Agency issued a shocking «notice of violation,» the vehicles met emissions standards for dangerous oxides of nitrogen, known collectively as NOx, only when running their paces in an artificial, indoor lab setting.

While U.S. power plants have limits on other air - born pollutants — like nitrogen and sulfur oxides that cause acid rain — there haven't been limits, until now, on the levels of carbon dioxide emissions that power plants can emit.

POLLUTION CONTROLS - The biggest challenge for automakers is controlling emissions of nitrogen oxides, or NOX.

German engineering giant announces new technology it claims will cut nitrogen oxide emissions for diesel cars to a fraction of 2020 limits

For vegetable products, energy use often is the dominant contribution of carbon dioxide emissions, but nitrous oxide emissions related to nitrogen application and fabrication also may be significant.

Emissions of nitrous oxide may be calculated if the nitrogen fertilizer or manure use during farming is known.

The EU National Emission Ceilings Directive sets ceilings for each Member State for emissions of ammonia, oxides of nitrogen, sulphur dioxide and volatile organic compounds (VOCs).

Emissions of nitrogen oxides have fallen by 62 per cent between 1990 and 2010, and fell by 3 per cent between 2009 and 2010.

Soon after the delay to the decision was announced by Hoon last Christmas, the Miliband and Benn camps both contacted the Institute for Public Policy Research, over a pamphlet by Simon Retallack, the IPPR's head of climate change, arguing that the third runway should not go ahead unless the government required aircraft using it to meet the aviation industry's own targets to cut carbon dioxide emissions and noise in new aircraft by 50 % and nitrogen oxides by 80 % by 2020.

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.

«These effects include wasted resources, foregone revenue and outsized emissions of carbon dioxide as well as local pollutants such as sulfur oxides and nitrogen oxides.

Concerns over the Dreamliner kicked off over a decade ago when Boeing decided to create a civil airliner that would be both lighter than any of its previous jets and fly with leaner - burning engines to cut the plane's emissions of CO2 and nitrogen oxides.

Such technology could cut acid rain — causing sulfur dioxide emissions by more than 90 percent, smog - forming nitrogen oxides by 75 percent, and — ultimately — capture more than 80 percent of the CO2 normally produced by combustion, storing it in nearby depleted oil fields by 2015.

U.S. laws increasingly target emissions of hydrocarbons (HC) and nitrogen oxides (NOx), which make smog.

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.

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.

EMISSIONS of sulphur dioxide and nitrogen oxides from shipping in the English Channel are «almost equivalent to those of Denmark», according to a study of marine pollution by Lloyd's Register.

In the case of auto emissions, instead of current catalysts that are inactive below 200 degrees Celsius, Lewis» gold and silver nano - catalysts would be able to react at room temperature and help remove harmful emissions including carbon monoxide, nitrogen oxides and hydrocarbons.

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 Germany, the emission of nitrogen oxides (NOx) amounts to approximately 1.3 million tons per year.

The precursors of acid rain formation result from both natural sources, such as volcanoes and decaying vegetation, and human - made sources, primarily emissions of sulfur dioxide and nitrogen oxide resulting from fossil fuel combustion.

By simulating how a highly volatile, low - soot fuel behaves in many engine designs, «We hope to retain the performance of diesel fuel with lower particulate matter and nitrogen oxide emissions,» said Roberto Torelli, an Argonne postdoctoral researcher on Som's team.

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.

The system produces lower emissions of nitrogen oxide and sulphur dioxide than incinerators designed to burn tyres and produce electricity, say the engineers.

Emissions of nitrogen oxides, one of the biggest problems for lean - burn engines, were reduced to 0.09 grams per kilometre — 25 per cent less than the US standard proposed for 2004.

An analysis of 27 states found that, on average, summer emissions of sulfur dioxide (SO2), nitrogen oxides (NOx) and carbon dioxide (CO2) go up by hundreds to thousands of metric tons per degree Celsius increase.

Heavy - duty vehicles, such as commercial trucks and buses, were found to be, by far, the largest contributor of emissions, accounting for 76 percent of the total excess nitrogen oxide emissions.

In fact, however, total emissions of sulfur dioxide were slightly lower in 1970 (15.8 million tons) than in 1980, and total emissions of nitrogen oxides were much lower (3.9 million tons).

Many of his mistakes are big ones: he bungles the issues involving reserves and resources that are critical to his core argument about oil remaining cheap; he drastically misleads his readers about the extent to which sulfur dioxide and nitrogen oxide emissions from coal - burning have been reduced; he trivializes the climate - change risks from coals carbon dioxide emissions by suggesting we know the impacts will be worth only 0.64 cents per kilowatt - hour.

I criticized this statement, noting that the actual emissions from U.S. coal - burning power plants declined only from 16.1 million tons to 12.4 million tons between 1980 and 1998 in the case of sulfur dioxide and from 6.1 million tons to 5.4 million tons between 1980 and 1998 in the case of nitrogen oxides (mostly emitted as NO, not NO2, but by convention measured as tons of NO2 - equivalent).

The team noticed a greater density of lightning in locations where ships blast emissions, including sulfur and nitrogen oxides, into the air.

The policy document also set new targets for the closure of coal - fired heating systems as well as the installation of equipment to reduce sulfur dioxide and nitrogen oxide emissions at power stations, steel mills and cement plants.

In one, emissions of nitrogen oxides and volatile organic compounds from human activities would continue at current levels through 2050.

The software fooled EPA emissions testers into thinking that Volkswagen's diesel engines produced less emissions of nitrogen oxides than they released in the real world.

It's been a quarter century since government regulations limiting emissions of sulfur and nitrogen oxides from coal - fired power plants began to neutralize the problem of acid rain, but lakes in the northeastern U.S. and eastern Canada have been sluggish to recover.

-- 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.

(D) combustion technology to produce higher firing temperature while lowering nitrogen oxide and carbon monoxide emissions per unit of output;

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

One of those new laws mandates that by 2003 older power plants must reduce their emissions of nitrogen oxide (by 50 %) and sulfur dioxide (by 25 %).

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 sales ban is part of a wider move to tackle air quality in the UK — a hot topic, particularly when it comes to nitrogen oxide emissions.

Volkswagen Group's so - called «defeat - device» emissions software has allowed hundreds of thousands of diesel vehicles from the 2009 - 16 model years to emit nitrogen oxide at illegal levels while thwarting emissions tests.

The offending emissions are oxides of nitrogen (NOx), hydrocarbons (HC) and carbon monoxide (CO).

Thanks to the use of an oxidising converter, a diesel particulate filter and a catalytic converter to all reduce the harmful emissions, including nitrogen oxide, that exit the exhaust.

The high - mileage D4 direct - injection gasoline engine remains too expensive and emits too much oxides of nitrogen to meet U.S. emissions regulations.

The air - fuel mix is consequently optimized and this reduces fuel consumption, while also minimizing the emission of CO2 and other pollutants (nitrogen oxides and particulates) at all engine speeds.

GM says it will use selective catalytic reduction or urea to reduce oxides of nitrogen or NOx emissions so that the Duramax can continue to be sold in all 50 states and meet new tier 2, bin 5 emissions levels.