Sentences with phrase «nitrogen dioxide as»

And fewer emissions of pollutants like nitrogen dioxide as well.

«Using exposure to nitrogen dioxide as a surrogate for exposure to traffic - related air pollution, we were able to demonstrate for the first time that higher levels of exposure were associated with greater right ventricular mass and larger right ventricular end - diastolic volume.

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.

In addition to carbon dioxide there are other disruptive products from the use of fossil fuels such as the nitrogen oxides that have already been referred to.

On the ground, the Department for Transport admits that as many as 35,000 people living near to Heathrow Airport suffer from poor air quality, primarily caused by nitrogen dioxide and particulate matter.

It has also reduced 90 percent of harmful pollutants such as mercury, sulfur dioxide, nitrogen oxide, ozone and particulate matter.

As I understand it, the lawsuit was about forcing the cities to impose more drastic measures (e.g. ban diesel cars from cities) to stay within the «self imposed» nitrogen dioxide EU limits.

We have no real idea what the atmosphere of Proxima b is made of, but for the sake of argument the researchers tried out an atmosphere like Earth's as well as a simpler one — mostly nitrogen with a dash of carbon dioxide.

As levels of ozone, nitrogen dioxide and particulate matter fell over time, so did the number of children who reported a daily cough, persistent congestion and other symptoms of irritated lungs.

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.

«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.

As is common around the country, New York State's Department of Environmental Conservation routinely monitors the levels of ozone, carbon monoxide, sulfur dioxide, nitrogen oxides, and particulates in the air.

The heat absorbed by water vapor and carbon dioxide is shared with all the nitrogen, oxygen and argon, because the latter molecules are always bumping into water vapor and carbon dioxide as they mix in the atmosphere.

By oxidation or reduction, i.e. the donation or acceptance of electrons, the catalysts convert combustion pollutants, such as carbon monoxide, nitrogen oxides and hydrocarbons, into carbon dioxide, water, and nitrogen.

Soil microbes decompose plant and other organic matter, in the process releasing carbon dioxide and soluble inorganic nitrogen, such as ammonium or nitrate.

The São Paulo State Environmental Corporation (CETESB), for example, routinely monitors only solid particles with diameters of 10,000 nm (PM10) and 2,500 nm (PM2.5)-- as well as other gaseous pollutants such as ozone (O3), carbon monoxide (CO) and nitrogen dioxide (NO2).

Although they can dramatically boast the growth of plants and vegetables — assisting the growing demand of food yields — fertilisers consist of substances and chemicals such as methane, carbon dioxide, ammonia and nitrogen.

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.

In the United States, roughly two - thirds of all sulfur dioxide and a quarter of all nitrogen oxide come from electric power generation that relies on burning fossil fuels, such as coal.

It is widely accepted that plant photosynthesis will increase with carbon dioxide, so long as nutrients, such as nitrogen and phosphorus, are not limiting.

Ma, who says he has worked with both the Intel and IBM research groups but is not privy to either's design, adds that the presence of silicon dioxide would require chipmakers to add nitrogen to the hafnium oxide as well.

The findings: carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorous — key ingredients for life — plus chemicals such as sulfur dioxide and hydrogen sulfide that could provide energy for microorganisms.

Jet engine exhaust contains carbon dioxide, oxides of sulfur and nitrogen, unburned fuel, soot and metal particles, as well as water vapor.

Ground - level ozone, sulfur dioxide, nitrogen dioxide carbon monoxide are especially harmful for senior citizens, children, and people with heart and lung conditions such as emphysema, bronchitis, and asthma.

The results might not have immediate repercussions — nitrogen trifluoride currently adds 0.04 percent of the global warming effect created by carbon dioxide emitted from sources such as coal - burning power plants and cars.

RMIT University researchers have created wearable sensor patches that detect harmful UV radiation and dangerous, toxic gases such as hydrogen and nitrogen dioxide.

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 study finds that titanium dioxide coatings, seen as promising for their role in breaking down airborne pollutants on contact, are likely in real - world conditions to convert abundant ammonia to nitrogen oxide, the key precursor of harmful ozone pollution.

«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.»

«We show that uptake of atmospheric NH3 (ammonia) onto surfaces containing TiO2 (titanium dioxide) is not a permanent removal process, as previously thought, but rather a photochemical route for generating reactive oxides of nitrogen that play a role in air pollution and are associated with significant health effects,» the authors write.

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.

They found a combination of methane, nitrogen, water and carbon dioxide were present, and could be used as an indicator of life elsewhere (Science Advances, doi.org/cjtj).

The models suggested that levels of air pollution would fall without the government having to do much as older diesel vehicles are replaced by newer ones that emit less nitrogen dioxide.

Nitric oxide and nitrogen dioxide, often referred together as «NOx,» form at high temperatures, such as those inside an engine.

This information was analyzed along with measurements of two air pollutants in their homes — fine particulate matter (PM2.5) and nitrogen dioxide (NO2)-- as well as outdoor temperatures during the study period.

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).

Previous flybys through the plumes have revealed that they contain water vapor, ice particles, sodium, potassium, methane, carbon monoxide, carbon dioxide and nitrogen, as well as both simple and complex organics.

The ammonia is washed away, creating a major environmental issue as it leads to eutrophication of water ways and ultimately enters the atmosphere as nitrogen dioxide, the main greenhouse gas associated with agriculture.

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).

* Vitamin E and selenium (200 to 300 mcg) work together to protect cells from pollutants including ozone, nitrogen dioxide, nitrites and metals such as lead, mercury, silver and cadmium.

The reasoning is that catalytic converters convert oxygen and oxygen - rich compounds (such as nitrogen oxide) with carbon and carbon - rich compounds (such as carbon monoxide) into carbon dioxide.

A partial list of properties surveyed includes density (expressed as API gravity), vapor pressure, initial boiling point, boiling point distribution, flash point, gas — oil ratio, «light ends» (dissolved gases — including nitrogen, carbon dioxide, hydrogen sulfide, methane, ethane, and propane — and butanes and other volatile liquids) composition, and flash gas composition.

In particular, aircraft jet engines produce carbon dioxide (CO2), water vapor (H2O), nitrogen oxides (NOx), carbon monoxide (CO), oxides of sulfur (SOx), unburned or partially combusted hydrocarbons (also known as volatile organic compounds, or VOCs), particulates, and other trace compounds.

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

All the engines will have reduced nitrogen dioxide emissions as they will be fitted with AdBlue tanks.

The coral polyps, as a respiratory byproduct, release carbon dioxide and ammonia, (of which the major constituent is nitrogen).

For the past ten years the plant has been operating without the level of emissions controls to limit sulfur dioxide and nitrogen oxide emissions as stipulated in the Clean Air Act.

For example, just as you can buy, sell and trade the rights to emit sulfur oxides (SOx) and nitrogen oxides (NOx) in the US, the EU's Emissions Trading Scheme (EU - ETS) lets you do the same for carbon dioxide.

``... such vibrations are not readily excited in molecules such as oxygen and nitrogen, but can be in others — particularly water and carbon dioxide.

In the atmosphere, a portion of the nitrogen winds up as nitrous oxide — laughing gas — which is not only a greenhouse gas that is 300 times more potent that carbon dioxide, but also destroys ozone, the gas that keeps us from getting more of a dose of UV radiation.