Sentences with phrase «ozone gas in»

Ozone Layer A layer of ozone gas in the stratosphere that shields the Earth from most of the harmful ultraviolet radiation coming from the Sun.

Burning fossil fuels through cars and coal plants is exacerbating the presence of ground - level ozone gas in the air we breathe.

Not exact matches

And that's very unfortunate because if you look at the last global crisis, the ozone layer, every single country met in Canada and agreed to stop CFC gasses.

Our products are derived from our core competencies in pressure measurement and control, flow measurement and control, gas and vapor delivery, gas composition analysis, residual gas analysis, leak detection, control and information technology, ozone generation and delivery, RF & DC power, reactive gas generation, vacuum technology, photonics, sub-micron positioning, vibration isolation and optics.

The LCA examined the effects of a 1 kilogram industry - average corrugated product manufactured in 2014 on seven environmental impact indicators: global warming potential (greenhouse gas emissions), eutrophication, acidification, smog, ozone depletion, respiratory effects, fossil fuel depletion; and four inventory indicators: water use, water consumption, renewable energy demand, and non-renewable energy demand.

The Commonwealth Ozone Protection and Synthetic Greenhouse Gas Management Act 1989 controls the manufacture, import and export of these ozone depleting substances in AustrOzone Protection and Synthetic Greenhouse Gas Management Act 1989 controls the manufacture, import and export of these ozone depleting substances in Austrozone depleting substances in Australia.

Feedstock is defined in the Ozone Protection and Synthetic Greenhouse Gas Management Act 1989 as «an intermediate substance which is used to manufacture other chemicals».

Since 1 January 2005, all uses of methyl bromide, other than for certified Quarantine and Pre-Shipment, approved feedstock applications, or approved under critical use exemptions, have been prohibited in Australia under the Ozone Protection and Synthetic Greenhouse Gas Management Act 1989 (the Act).

The marginal impact that years of climate negotiations have made on the pace and direction of global greenhouse gas emissions finds its roots, at least in part, in the successes of the ozone negotiations.

«While ozone depletion from dichloromethane is currently quite modest, it is uncertain how the amount of this gas in the atmosphere will change in the future.

In 2004, Looy and her former Ph.D. advisor Henk Visscher proposed one way this might have played out, bases on fossilized abnormal plant spores found worldwide: volcanic gases — halocarbons like methyl chloride and methyl bromide — destroyed much or all of Earth's ozone layer, boosting UV - B exposure that would have affected life and potentially increased the genetic mutation rates in pollen and spores of plants worldwidIn 2004, Looy and her former Ph.D. advisor Henk Visscher proposed one way this might have played out, bases on fossilized abnormal plant spores found worldwide: volcanic gases — halocarbons like methyl chloride and methyl bromide — destroyed much or all of Earth's ozone layer, boosting UV - B exposure that would have affected life and potentially increased the genetic mutation rates in pollen and spores of plants worldwidin pollen and spores of plants worldwide.

Next door, in the «Temporary Atmospheric Watch Observatory,» or «TAWO,» the National Oceanic and Atmospheric Administration tracks the level of greenhouse gases and ozone - depleting chemicals in the atmosphere.

Rowland, a chemist at the University of California, Irvine, and Mario Molina of the Massachusetts Institute of Technology theorized in 1974 that chlorofluorocarbon gases (CFCs), when struck by sunlight, could decompose to ozone - eating chlorine and chlorine monoxide.

«We are quickly running out of time to prevent hugely dangerous, expensive, and perhaps unmanageable climate change,» wrote the report's authors, who include former U.N. Environment Programme chief Achim Steiner and Mexican chemist Mario Molina, who won the Nobel Prize for his role in discovering the threat that chlorofluorocarbon gases pose to the Earth's ozone layer.

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.

But the celebration may have been premature: Last spring, scientists discovered new ozone - destroying gases in the atmosphere.

The researchers found that while the amount of ozone depletion arising from VSLS in the atmosphere today is small compared to that caused by longer - lived gases, such as CFCs, VSLS - driven ozone depletion was found to be almost four times more efficient at influencing climate.

Sunshine in the southern spring and summer creates even more ozone - depleting gases, leading to the massive destruction of up to 65 percent of the ozone layer.

Bean and Kempton, meanwhile, are interested in detailing what a statistical census of biologically significant gases such as oxygen, carbon dioxide and ozone could reveal about planetary habitability.

This is important, as a molecule of ozone lost in this region has a far larger impact on climate than a molecule destroyed at higher altitudes by longer - lived gases.»

What happens to the ozone layer in the second half of the 21st century will largely depend on concentrations of CO2, methane and nitrous oxide — the three main long - lived greenhouse gases in the atmosphere.

By contrast, nitrous oxide, a by - product of food production, is both a powerful greenhouse gas and an ozone depleting gas, and is likely to become more important in future ozone depletion.

In response to these cases and others, state and county health officials conducted a series of monitoring projects that found that gas drilling was the area's largest source of several hazardous air pollutants, including benzene and ozone - forming emissions.

Those gases react with incoming sunlight to produce ozone in the troposphere, the lowest layer of the atmosphere.

In my view, the most important omission related directly to science and technology aspects of the greenhouse gas issue is the failure to point out the tremendous opportunity that exists to limit warming over the next few decades by imposing strong, mandatory controls of short - lived warming agents (so methane, black carbon, and tropospheric ozone).

By separating out the starlight from the planet light, we can identify molecules in the planet's atmosphere and look for gases produced by life, like oxygen, ozone and ammonia.

To what extent climate change due to the emission of greenhouse gases may favor the formation of an «ozone hole» in the Arctic stratosphere is an important topic of the POLSTRACC campaign.

Even down on the Red Planet's surface, the Curiosity rover might be able to get in on the act: Because Mars's atmosphere has no ozone to block ultraviolet light, sensors on the rover will be able to detect those wavelengths and thereby monitor certain trace gases spewing from the comet — unless a dust storm blocks the view to space, Lemmon says.

And ozone, which forms a beneficial shield against ultraviolet radiation when high in the stratosphere, is an efficient greenhouse gas when it appears at airliner altitudes — as it increasingly does, since it too is a by - product of fossil fuel burning.

Similar scandals erupted over the effects of scores of industrial applications, ranging from sulfur dioxide and acid rain, to certain aerosols and the hole in the ozone layer, to leaded gas and cognitive impairment, to the granddaddy of them all, fossil fuels and global climate change.

In the harsh sunlight of the upper atmosphere, methane can react with other gases to form water vapor, which then breaks down into other chemicals that destroy ozone.

Ozone depletion is primarily caused by human - made compounds that release chlorine and bromine gases in the stratosphere.

Tropospheric ozone — a greenhouse gas and the kind that affects the air we breathe — can increase in concentration because of atmospheric conditions, or can result from human activities.

Simulating natural and humanmade climate drivers, scientists showed that the decline in rainfall is primarily a response to humanmade increases in greenhouse gases as well as a thinning of the ozone caused by humanmade aerosol emissions.

These include methane, nitrous oxide («laughing gas»), halons, methyl bromide and chlorofluorocarbons (CFCs), which are notorious as «ozone killers» because they play a major role in ozone depletion in the polar regions.

These gases, culprits in no less than two environmental crimes — the ozone hole and climate change — are required to efficiently cool your food and beverages.

Natural fires in forest and grassland are a major source of methyl bromide, a potent ozone - destroying gas, German scientists have found.

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.

If there are a lot of gases that consume oxygen, such as methane or hydrogen, then any oxygen or ozone produced will be destroyed in the atmosphere.

In Zatko's case, she says the support did produce a finding that could benefit society at large: She concluded that chemical reactions in snow were making only a minimal contribution to the region's ozone pollution, compared with emissions coming from natural gas drillinIn Zatko's case, she says the support did produce a finding that could benefit society at large: She concluded that chemical reactions in snow were making only a minimal contribution to the region's ozone pollution, compared with emissions coming from natural gas drillinin snow were making only a minimal contribution to the region's ozone pollution, compared with emissions coming from natural gas drilling.

(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.)

Nitrous oxide (N2O) is a powerful greenhouse gas and also the second largest contributor to ozone depletion in the stratosphere.

Scientists from the University of Bath's Department of Pharmacy & Pharmacology and Centre for Regenerative Medicine and from the Faculty of Pharmaceutical Sciences, University of São Paulo, Brazil, showed that ozone gas, obtained by passing electricity through oxygen, effectively sterilises one of the most common types of polymer used in medical implants.

The device would have measured ozone concentration, gases involved in ozone depletion, and aerosols such as those from the eruption of Mount Pinatubo in the Philippines.

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

«Ozone develops in the atmosphere from gases that come out of tailpipes, smokestacks and many other sources,» reports ALA. «When these gases come in contact with sunlight, they react and form ozone smog.&rOzone develops in the atmosphere from gases that come out of tailpipes, smokestacks and many other sources,» reports ALA. «When these gases come in contact with sunlight, they react and form ozone smog.&rozone smog.»

The temperature change in any particular region will in fact be a combination of radiation - related changes (through greenhouse gases, aerosols, ozone and the like) and dynamical effects.

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.

This is in accord with physical expectations and most model results, which demonstrate the role of increasing greenhouse gases in tropospheric warming and stratospheric cooling; ozone depletion also contributes substantially to stratospheric cooling.

The Montreal Protocol had no impact on cleaning the air, it stopped the growth of CFCs which are powerful greenhouse gases (in addition to their role in depleting stratospheric ozone), therefore it slowed global warming, rather than increasing it, and we aren't trying to save ground - level ozone.