Sentences with phrase «nitrogen emission in»

The filters used to create this color image show oxygen in blue, hydrogen in green and a combination of sulfur and nitrogen emission in red.

«Rapid economic growth in China has driven high levels of nitrogen emissions in the past few decades,» says Zhang Fusuo, an agriculture researcher at the China Agricultural University in Beijing and a co-author of the study.

Not exact matches

And I'm going to see another technology in the U.S. that reduces nitrogen oxide emissions from diesel trucks by up to 50 % while preserving horsepower.

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.

The world's food security would be ensured even with over 9 billion people in 2050, agricultural land area would not increase, greenhouse gas emissions would be lowered and the negative effects of today's intensive food systems, such as nitrogen surplus and high pesticide exposure, would be greatly reduced.

the permanent plant cover in organic systems which results in a more efficient uptake of mobile nitrogen in soils, thus reducing the potential and risk for N2O emissions.

In modern Britain, traffic is the major air polluter, with traffic fumes accounting for just over half of the total domestic nitrogen emissions.

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.

Bacteria release N2O when they consume the nitrogen in soil or water, but human activity now accounts for nearly 40 per cent of N2O emissions (Science, DOI: 10.1126 / science.1176985).

Fumes from nitrogen - rich fertilizers and animal waste combine in the air with combustion emissions to form solid particles in the air.

Global agricultural emissions of the gas have increased by 20 per cent in the last century as a result of widespread use of nitrogen - based synthetic fertilizers.

The culprit: fumes from nitrogen - rich fertilizers and animal waste combine in the air with combustion emissions to form solid particles, which constitute a major source of disease and death, according to the new study.

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.

In its test in its Danbury lab, the company plans to mix carbon dioxide, air and nitrogen to simulate coal plant emissions and then shoot those gases into a fuel cell stacIn its test in its Danbury lab, the company plans to mix carbon dioxide, air and nitrogen to simulate coal plant emissions and then shoot those gases into a fuel cell stacin its Danbury lab, the company plans to mix carbon dioxide, air and nitrogen to simulate coal plant emissions and then shoot those gases into a fuel cell stack.

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.

With the help of the Delta Institute and the Climate Trust, nonprofits focused on market - driven emissions reduction efforts, offsets are paid out to farmers when they document reductions in their nitrogen fertilizer use.

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.

When hydrocarbon - based fuels like methane are burned in normal air, nitrogen gets mixed in with the combustion product — flue gases from conventional gas power stations contain as little as 3 percent CO2 — which makes scrubbing carbon from power plant emissions difficult and expensive.

The finding that NOx emission rates will increase with warming temperatures also highlights the urgency of taking steps to better manage nitrogen fertilizer use in a warming world, he says.

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.

California's vast agricultural lands — particularly soils heavily treated with nitrogen fertilizers — are now responsible for as much as 51 percent of total NOx emissions across the state, researchers report January 31 in Science Advances.

Another measure, the federal Cross-State Air Pollution Rule, will require still more expensive controls on coal plants in the Midwest and South to reduce sulfur dioxide and nitrogen oxide emissions that travel across state lines, creating ozone and fine particle pollution downwind.

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.

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 amount and diversity of pesticides, pharmaceuticals and other industrial chemicals that humans are releasing into the environment are increasing at rates that match or exceed recent increases in CO2 emissions, nutrient pollution from nitrogen fertilizers, and other drivers of global change,» Bernhardt said.

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.

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.

Emissions decreased as the proportion of soybeans in the diet increased, as soybeans require less nitrogen fertilization than corn grain.

Reducing excess nitrogen in the diet could be an effective strategy to reduce ammonia emissions without affecting a farm's bottom line.

A leader in this quest is German - based automaker DaimlerChrysler, which recently introduced BLUETEC technology — a modular exhaust treatment system that cuts nitrogen oxide and soot output significantly, enabling cars to meet the most stringent U.S. emission standards.

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.

A study commissioned by Iridium found that between the service's proposed start in 2017 and 2030, the technology should save airlines about $ 7 billion on fuel and cut carbon dioxide and nitrogen oxide emissions by 35 million tonnes.

The combined hydrocarbon and nitrogen oxides emissions were also 76 per cent below the standard the European Commission plans to impose in 1996.

What makes these figures significant is the increasing evidence that nitrogen oxides (NOx) and water vapour in these emissions play a key role in destroying ozone.

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 tonsIn 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 tonsin 1970 (15.8 million tons) than in 1980, and total emissions of nitrogen oxides were much lower (3.9 million tonsin 1980, and total emissions of nitrogen oxides were much lower (3.9 million tons).

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.

In their paper, published in Scientic Reports, the authors present the first demonstration that single - photon emission from a specially oriented compound defect (a nitrogen vacancy center) in diamond is dynamically and statically unpolarized with intrinsic randomnesIn their paper, published in Scientic Reports, the authors present the first demonstration that single - photon emission from a specially oriented compound defect (a nitrogen vacancy center) in diamond is dynamically and statically unpolarized with intrinsic randomnesin Scientic Reports, the authors present the first demonstration that single - photon emission from a specially oriented compound defect (a nitrogen vacancy center) in diamond is dynamically and statically unpolarized with intrinsic randomnesin diamond is dynamically and statically unpolarized with intrinsic randomness.

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.

Ammonia is an abundant constituent in motor vehicle emissions, and its conversion to nitrogen oxides could result in increases in harmful ozone concentrations.

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.

Weber, B., D. Wu, A. Tamm, N. Ruckteschler, E. Rodriguez - Caballero, J. Steinkamp, H. Meusel, W. Elbert, T. Behrendt, M. Sörgel, Y. Cheng, P. J. Crutzen, H. Su and U. Pöschl: Biological soil crusts accelerate the nitrogen cycle through large NO and HONO emissions in drylands, Proceedings of the National Academy of Sciences of the United States of America 112, 15384 - 15389, 2015.

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

Class W is further divided into subclasses according to the relative strength of nitrogen and carbon emission lines in their spectra (and outer layers).

But the courts haven't always struck down EPA emissions trading programs — such as the trading program for nitrogen oxides — and when they have disqualified programs, it was either because agencies failed to follow proper procedure (as was the case with a Bush - era mercury rule that eased requirements on power plants) or because specific statutory goals were not followed (as was the case in the Clean Air Interstate Rule, which wouldn't have necessarily reduced all interstate pollution).