Sentences with phrase «from high ozone»

«Similarly, the San Francisco Bay Area's infamous summertime fog blocks the sun and helps protect the region from high ozone levels.»

Not exact matches

To gauge the current and future threat to high - altitude ozone from CH2Cl2, Hossaini and his colleagues used computer simulations.

The ozone layer — a high - altitude expanse of oxygen molecules that protects us from the sun's ultraviolet rays — has been on the mend for the past decade or so.

And while ozone high in the atmosphere helps shield Earth from the sun's ultraviolet radiation, at ground level, it mixes with fine particulates to form breath - choking smog.

Their work reveals that 60 % of the ozone vanished in a layer from 16 to 22 kilometers high.

As shown in previous studies, the litter from the polluted site, which had endured high levels of atmospheric nitrogen oxides and ozone, had higher nitrogen content than litter from the clean site.

They found that water vapour and chlorine and bromine from vaporised sea salts would destroy ozone high in Earth's atmosphere at a much faster rate than it is naturally created (Earth and Planetary Science Letters, DOI: 10.1016 / j.epsl.2010.08.036).

At high levels, tropospheric ozone can cause respiratory problems from asthma to emphysema.

In the high atmosphere, ozone plays a crucial role in shielding the surface from harmful levels of ultraviolet light.

Higher temperatures can also increase the emissions of organic compounds from trees, which can then react in the atmosphere to form ozone and particulate matter.

Higher levels of ultraviolet radiation penetrating the Earth's dwindling ozone layer may be driving some species of frogs to extinction, according to researchers from Oregon.

Dr West added: «In monetary terms, we found that the benefits for avoided deaths from ozone and PM2.5 were roughly $ 137 per ton CO2 at high valuation, and $ 45 at low valuation, of which 31 % are from foreign GHG reductions.

Ozone doesn't just live high in Earth's atmosphere; near the ground, it contributes to smog, and ground - level ozone has gradually increased in most places because of industrial pollution from vehicles and fossil - fuel burOzone doesn't just live high in Earth's atmosphere; near the ground, it contributes to smog, and ground - level ozone has gradually increased in most places because of industrial pollution from vehicles and fossil - fuel burozone has gradually increased in most places because of industrial pollution from vehicles and fossil - fuel burning.

Once aerosols are that high they can spread globally, destroy the ozone layer that protects us from ultraviolet radiation and exacerbate global warming, researchers warn.

Pollutants that gather from India and China in the lowlands around the mountains can be boosted as high as 18 kilometers, reaching the stratosphere — the atmospheric layer directly above the troposphere that contains most of Earth's ozone.

Ozone high in the atmosphere protects Earth's surface from ultraviolet light.

Plants emit more volatile organic compounds at higher temperatures, which can increase ozone formation if mixed with pollutants from human sources.

They also tolerated periods of temperatures up to 41 °C and, separately, high ultraviolet radiation — which might come about from damage to the ozone layer.

In the atmosphere, high overhead, ozone protects Earth from harmful radiation that comes from the sun.

The full set of health metrics have been detailed in TOAR - Metrics, and are organised according to the range of the ozone distribution to which they correspond, specifically: high ozone concentrations, high and mid-level ozone concentrations and ozone concentrations from across the distribution.

Early Earth lacked an ozone layer to act as a shield against high - energy solar radiation, but microbes flourished by adapting to or finding other forms of protection from the higher ultraviolet radiation levels.

IPCC [26] projects the following trends, if global warming continue to increase, where only trends assigned very high confidence or high confidence are included: (i) increased malnutrition and consequent disorders, including those related to child growth and development, (ii) increased death, disease and injuries from heat waves, floods, storms, fires and droughts, (iii) increased cardio - respiratory morbidity and mortality associated with ground - level ozone.

Modeling studies caution that warmer days will lead to higher concentrations of ground - level ozone and smog, which cause sickness and death from respiratory and cardiac disease (79).

Tuft's photographs document the effects of high levels of these light spectrums, usually found in places suffering from ozone depletion.

I can remember reading studies that purported to show that higher UV radiation from ozone depletion was causing frogs to disappear, this despite the fact that the experiments amounted to the same increased UV exposure as relocating the frogs about 50 miles south would have.

Similar negative effects occur with worsening air pollution — higher levels of ground - level ozone smog and other pollutants that increase with warmer temperatures have been directly linked with increased rates of respiratory and cardiovascular disease — food production and safety — warmer temperatures and varying rainfall patterns mess up staple crop yields and aid the migration and breeding of pests that can devastate crops — flooding — as rising sea levels make coastal areas and densely - populated river deltas more susceptible to storm surges and flooding that result from severe weather — and wildfires, which can be ancillary to increased heat waves and are also responsible for poor air quality (not to mention burning people's homes and crops).

There is growing evidence from EuroHEAT that the effects of heat - wave days on mortality are greater, particularly among the elderly, when levels of ozone or particulate matter are high.

In 2013, Fort Collins and Denver received «F» grades from the American Lung Association for high levels of ground - level ozone, a key element of smog; Colorado Springs received a «C» grade.

A paragraph from a 2007 United Nations - sponsored report provides a depressing introduction: «In the air, (reactive nitrogen) can contribute to higher levels of ozone in the lower atmosphere, causing respiratory ailments and damaging vegetation.

Right now I am curious about stratospheric cooling from CO2 and the effect on ozone as well as high altitude water vapor.

More ozone from the stratosphere entering the troposphere at high latitudes (coupled Stratosphere / troposphere circulation) and being fed towards the equator by the counter westerlies traveling in precisely the same direction as the trades.

This stratospheric ozone layer prevents the Sun's harmful, high - energy radiation from reaching Earth's surface.

On ground level ozone they say they have a high confidence that the base line will change over the 21st century from either slightly less to slightly more, but it won't be exactly the same.

Here is how the more active sun would deplete ozone in the higher layers so as to cool them and thereby accelerate the upward energy flux from the stratosphere below which then cools instead of warming when the sun is more active:

During extreme heat events, nighttime temperatures in the region's big cities are generally several degrees higher28 than surrounding regions, leading to increased heat - related death among those less able to recover from the heat of the day.36 Since the hottest days in the Northeast are often associated with high concentrations of ground - level ozone and other pollutants, 37 the combination of heat stress and poor air quality can pose a major health risk to vulnerable groups: young children, the elderly, and those with pre-existing health conditions including asthma.29 Vulnerability is further increased as key infrastructure, including electricity for potentially life - saving air conditioning, is more likely to fail precisely when it is most needed — when demand exceeds available supply.

Cons: typically uses HCFCs as blowing agents, which have high global warming potential and moderate ozone depletion, flammable and produces toxic fumes when burned, made from crude oil byproducts, all brands of XPS sold in US include HBCD which causes concern to EPA as well as others, protective gear is recommended to be worn during cutting and installation.

IPCC [26] projects the following trends, if global warming continue to increase, where only trends assigned very high confidence or high confidence are included: (i) increased malnutrition and consequent disorders, including those related to child growth and development, (ii) increased death, disease and injuries from heat waves, floods, storms, fires and droughts, (iii) increased cardio - respiratory morbidity and mortality associated with ground - level ozone.

Requires the Administrator, upon notification from a state Governor that the statutory Reid vapor pressure limitation (RVPL) will increase emissions that contribute to air pollution in the state, to apply a substitute RVPL to fuel blends containing gasoline and 10 % denatured anhydrous ethanol that are introduced into commerce during the high ozone season.

EIA International Climate Policy Analyst, Avipsa Mahapatra, adds, «As developing countries like India and Brazil begin to transition from using ozone depleting substances, they have the tremendous opportunity to leapfrog high - GWP HFCs by transitioning to energy efficient climate - friendly natural refrigerants, thus saving billions of tonnes of CO2 equivalent emissions.

In a nutshell, many of the elements being sprayed destroy the high - altitude ozone layer which used to protect the earth from UV radiation, back in the good ol' days.

That growth of sea ice could have potentially been caused by the influx of freshwater as glaciers on land melted, or from changes in the winds that whip around the continent (changes that could be linked to warming or the loss of ozone high in the atmosphere).

The high quality, serialized credits are from a wide range of voluntary and California - regulated carbon market projects, including: reforestation, forest management, avoided conversion of forests, destruction of ozone depleting substances, mine methane capture, advanced refrigeration systems, transportation fleet efficiency, livestock manure management, avoided conversion of grasslands, rice cultivation, advanced formulation foam blowing agents, landfill gas capture, industrial processes and renewable energy.

Data obtained from internet sources show maps of high - latitude ozone conversion associated with polar magnetic force fields and also show detailed cross sections of mid-latitude ozone conversion associated with jet streams.

Once aerosols are that high they can spread globally, destroy the ozone layer that protects us from ultraviolet radiation and exacerbate global warming, researchers warn.»

Pollutants that gather from India and China in the lowlands around the mountains can be boosted as high as 18 kilometers, reaching the stratosphere — the atmospheric layer directly above the troposphere that contains most of Earth's ozone.

From the Perry Space looking DOWN plot, we see that the ~ 10μm region is the highest (except for the oxygen / ozone «bite») and that the two H2O and the one CO2 regions are depressed.

(Note: Ozone is a good thing high up in the stratosphere, where it is naturally produced and blocks ultraviolate (UV) rays from harming life on Earth, but a bad thing in the troposphere, where it acts as main ingredient of smog and is harmful to breath and damages crops).

Not surprisingly, highly populated regions such as the Los Angeles, Riverside and Houston areas, where the climate is sunny for much of the year and the air mass is relatively stable, had the highest average concentrations of ozone, ranging from 62.5 to 104 ppb.