Sentences with phrase «release of nitrogen»

In freshwater systems, acidifying depositions occur following the release of nitrogen oxides (NOx) and sulfur dioxide (SO2) into the atmosphere, mainly from the combustion of fossil fuels, which then may fall in dry or wet form.

Other studies have shown that coating nitrogen fertilizers with various materials, such as polyolefins, can slow the release of nitrogen nutrients so that they are more synchronous with the requirements of the growing crop.

A delayed release of nitrogen into the soil better matched the needs of the young sweet corn.

Zatko wanted to measure the release of nitrogen oxides from snow.

In mid-August, the Environmental Protection Agency is expected to make recommendations to the White House on how to reduce releases of nitrogen oxides, sulfur dioxide and mercury from power plants.

Not exact matches

... 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.

Automobiles, power plants and industries release oxides of nitrogen into the atmosphere.

In the United States the quantity of nitrogen oxides released in this way doubled between 1950 and 1973 (Postel 1987).

She noted that CSWA's program recently marked its first decade with publication of a 2012 Progress Report and the third edition of the California Code of Sustainable Winegrowing Workbook and release of a new Performance Metrics tool for measuring vineyard and winery use of water, energy and applied nitrogen, and greenhouse gas emissions.

A drop of liquid nitrogen is released into the can, which immediately flashes off into nitrogen gas.

In anticipation of its activities at Natural Products Expo West, The Organic Center released new research findings from the University of Virginia in collaboration with The Organic Center showing that organic farming can help reduce nitrogen pollution on a global scale.

multi-serve concentrate, Peet's will also launch a canned nitrogen - infused version of its Baridi Black cold brew, which will complement a second nitro — Hair Bender — that will be released by third - wave coffee brand Stumptown, a subsidiary of Peet's.

The agreement also includes a $ 250,000 project to install nitrogen reduction technology at one of the park locations, according to a parks department press release.

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.

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).

Global warming, from the release of carbon dioxide and perturbations to the nitrogen cycle from fertilizers

This reaction could play an important role in explaining the observed depletion of ozone over Antarctica; it releases photolytically active chlorine from its most abundant reservoir species, and it promotes the formation of HNO3 and thus removes nitrogen dioxide (NO2) from the gas phase.

Synthetic fertilizer is available as a variety of commercial products, with different nitrogen - release times, whereas manure and pulse crops need to be broken down by microbial decomposition before nitrogen becomes available.

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.

South of East St. Louis, the industrial plants in Sauget release hundreds of tons of volatile organic matter, sulfur dioxide and nitrogen oxides each year.

The ConocoPhillips Wood River refinery also released nearly 5,000 tons of sulfur dioxide, 4,000 tons of nitrogen oxides and 2,000 tons of volatile organic matter, according to data from the U.S. Environmental Protection Agency.

In this paper, UCR and Forest Service researchers teamed up to explore a previously unstudied aspect of nitrogen saturation: its effect on the gases and aerosols released during burning of forest fuels from an area experiencing nitrogen saturation.

Fuel from the polluted site released more nitrogen oxides, which contribute to the formation of smog and ozone.

When polymeric nitrogen reverts back to its atmospheric form, Eremets believes, it should release a vast amount of energy — more than five times as much as TNT.

An international team of researchers, including three from the U.S. Department of Energy's Brookhaven National Laboratory, has tracked nitrogen as soil bacteria pull it from the air and release it as plant - friendly ammonium.

The nitrogen and phosphorous excreted by the sponges and released when they die, says Mark Wunsch, a study author from Bremen, accounts for one - third of the nutrients reaching coral organisms, offering a possible solution to Darwin's paradox.

As it burns, large amounts of particulate matter, sulfur oxides and nitrogen oxides are released.

Researchers in Hawaii found that guppies released in the 1920s drove down native fish populations, perhaps by competing with them for food and living space, and had likely changed the cycle of nutrients in water: Guppy - rich areas showed increased levels of dissolved nitrogen — from ammonium in fish urine and gill excretions — which, in turn, stimulated algae growth.

«For every pound of nitrogen fertilizer manufactured, at least 10 pounds of carbon dioxide may be released,» Hungria states.

«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.

Data from three model systems support the hypothesis that L - arginine - derived nitrogen oxides (NOs) mediate insulin release stimulated by L - arginine in the presence of D - glucose and by the hypoglycemic drug tolbutamide.

«We wanted to determine how the composition of the cover crop mixture affects the rate of nitrogen release and the persistence of the mulch,» Poffenbarger explains.

However, by year 3, the scientists» measurements indicated that the wetland had become a net source of dissolved organic nitrogen — the type that plants release — in water flowing into an adjacent estuary.

When sulfur dioxide and nitrogen oxides are released from power plants and other sources, prevailing winds blow these compounds across state and national borders, sometimes over hundreds of miles.

These, in turn, triggered reactions in the upper atmosphere in which oxygen and nitrogen molecules released photons of light.

For example, bacteria in soil release nitrogen and phosphorus as they break down dead plants, and so these microbes could increase the amount of available nitrogen and phosphorus.

Because nitrogen and carbon cycles are tightly coupled, the team's discovery might also alter projections of carbon storage or release from arctic ecosystems as the climate warms.

This assumption, however, was contradicted by scientists from the University of Eastern Finland a decade ago, when they discovered that bare peat surfaces in permafrost peatlands are releasing high amounts of N2O, despite the general nitrogen limitation of tundra ecosystems.

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.

David Hambling says: «In molecular nitrogen, two atoms are connected by a triple bond that releases a load of energy...

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.

They have discovered that energy released by the formation of pyrite (FeS2) can help to form similar carbon - nitrogen bonds, known as amide bonds.

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.

Both of these processes release a variety of solid forms of nitrogen through combustion.

They found that adding a bit of nitrogen oxide, released in combustion engine car exhaust, resulted in particles that trapped some heat.

Yet another value of forests, also on Yale Environment, «Forest top soils capture and stabilize nitrogen pollution very quickly but release it slowly, according to new research published in the journal Ecology, Lewis, D. B et al 2014.

Positive: Increased organic matter if increased productivity; increased nitrogen availability Negative: Decreased organic matter (with increased decomposition rates); decreased mycorrhizal support; increased soil acidity; increased release, or decreased removal, of atmospheric CO2

This orbits places the planet near the inner edge of its host star's habitable zone, where liquid water could exist in liquid form under favorable conditions such as an albedo of 0.52 with an orbital eccentricity of 0.11 and more than 52 percent cloud cover under a sufficiently dense atmosphere of water, carbon dioxide, and molecular nitrogen like Earth's (ESO science release; Pepe et al, 2011; and Kaltenegger et al, 2011 — more below).

The sustained release profile provides a quick, medium and slow release of muscle building amino acids for both fast and long term nitrogen retention.

This releases a substantial amount of nitrogen.