Ozone layer

Ozone Layer
A very diluted atmospheric concentration of ozone found at an altitude of 10 to 50 kilometers above the Earth's surface, which acts as a protective layer from the sun's radioactive rays.

Ozone layer
See main article: Ozone layer.
The highest levels of ozone in the atmosphere are in the stratosphere, in a region also known as the ozone layer.

Ozone Layer
A layer of ozone high up in the atmosphere, which shields us from the harmful rays of the Sun.
Particulate
A tiny amount of solid or liquid carried in the air, for example soot, dust or fumes.

Ozone layer - in the upper atmosphere about 15 miles above sea level it forms a protective layer which shields the earth from excessive ultraviolet radiation and occurs naturally.
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Ozone Layer - The protective layer in the atmosphere, about 12-15 miles above sea level, that absorbs some of the sun's ultraviolet rays, thereby reducing the amount of potentially harmful radiation that reaches the earth's surface.

Ozone layer (stratospheric ozone): Ozone that is formed in the stratosphere from the conversion of oxygen molecules by solar radiation. Ozone absorbs much ultraviolet radiation and prevents it from reaching the Earth.

Ozone Layer (C):
The layer of ozone that begins approximately 15 km above Earth and thins to an almost negligible amount at about 50 km, shields the Earth from harmful ultraviolet radiation from the sun.

Ozone layer
The thin protective layer of gas 10 to 50km above the Earth that acts as a filter for ultraviolet (UV) radiation from the sun. High UV levels can lead to skin cancer and cataracts and affect the growth of plants.
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Ozone layer is a thin layer of stratoshere - between about 15 kilometres out and 50 kilometres out from the earth. The ozone layer was formed by oxygen from plants reacting with ultraviolet light of the sun.

Ozone Layer: A layer of ozone in the lower portion of the stratosphere -- 12 to 15 miles above the Earth's surface -- which helps to filter out harmful ultraviolet rays from the sun.

O ozone layer depletion
Definition (english only)
The fragile shield of ozone is being damaged by chemicals released on earth.

Chlorofluorocarbons, used primarily to facilitate cooling in refrigerators and air conditioners, have been found to deplete the stratospheric ozone layer which protects the earth and its inhabitants from excessive ultraviolet radiation.

The ozone layer has become thinner because of chemicals that were once commonly used in products ranging from spray cans to foam furniture cushions.

ozone layer A thin layer of ozone high in the atmosphere that prevents high energy UV radiation from getting to earth. Without it all plants and animals would die.

There is extensive evidence showing that a class of synthetic compounds, the chlorofluorocarbons (CFCs), are responsible for the destruction of the ozone layer. CFCs are molecules that contain one or more atoms of both chlorine and fluorine.

CFCs deplete the stratospheric ozone layer that protects life on Earth from excess ultraviolet light that can cause skin cancer and cataracts in humans and other damage to plants and animals.

' in 1930 which set out the first theoretical explanation of the ozone layer in the stratosphere.

The ozone in the stratosphere is more stable than the tropospheric ozone and forms an ozone layer roughly between 15 and 50 km above the earth.

Ozone Depletion is a thinning of the ozone layer, the blanket of ozone gas that shields us from the sun's damaging ultraviolet (UV) radiation.

Ozone Hole - Thin place in the ozone layer located in the stratosphere high above the Earth. Stratospheric ozone thinning has been linked to destruction of stratospheric ozone by CFCs and related chemicals.

A thinning break in the stratospheric ozone layer. Designation of amount of such depletion as an "ozone hole" is made when the detected amount of depletion exceeds fifty percent.

2. Deterioration of the Ozone Layer - Without protection from the sun's harsh UV radiation, plant life would suffer catastrophic losses and, subsequently, so will animal life, including humans. The "hole" in the ozone layer warrants watching.

Destruction of the stratospheric ozone layer which shields the earth from ultraviolet radiation harmful to life.

Ozone Depletion - destruction of the stratospheric ozone layer, which shields the earth from ultraviolet radiation.

From this flow a variety of secondary effects, including sea level rise, impacts on agriculture, reductions in the ozone layer (see above), increased intensity and frequency of extreme weather events, and the spread of disease.

chlorofluorocarbons (CFCs): greenhouse gases formerly used in fridges, aerosols, etc, that are being phased out because they destroy the ozone layer.

refrigerants - cooling substances, many of which contain CFCs and are harmful to the earth's ozone layer.
renewable energy - energy resources such as windpower or solar energy that can keep producing indefinitely without being depleted.

Ozone: An unstable oxidizing agent, that consists of three oxygen atoms and can be found in the ozone layer in the atmosphere. It is produced by electrical discharge through oxygen or by specifically designed UV-lamps.

The ozone layer that protects us from the sun's ultraviolet radiation is within the stratosphere. The mesosphere extends from the top of the stratosphere up to 80-90 km.

CFCs Chlorofluorocarbons, chemicals which result in a depletion of the ozone layer in the upper atmosphere.
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UV rays from one part of the spectrum (UV-A) enhance plant life. UV rays from other parts of the spectrum (UV-B) can cause skin cancer or other tissue damage. The ozone layer in the atmosphere partly shields us from ultraviolet rays reaching the ...

VOC’s can affect the health of people using the building, and they also contribute to air pollution and reduction of the ozone layer.

UV rays from one part of the spectrum (UV-A) enhance plant life and are useful in some medical and dental procedures; UV rays from other parts of the spectrum (UV-B) can cause skin cancer or other tissue damage. The ozone layer in the atmosphere ...

It provides for the end of production of ozone-depleting substances such as CFCS. Under the Protocol, various research groups continue to assess the ozone layer.

Environmental Protection Agency provides an online UV index that is searchable by zip code. Check the UV level in your neighborhood to determine how much you and your neighbors are contributing to depletion of the ozone layer.

See also: Ozone, Water, Environment, Environmental, Air