Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth's stratosphere (the ozone layer), and a much larger springtime decrease in stratospheric ozone over Earth's polar regions. The latter phenomenon is referred to as the ozone hole. In addition to these well-known stratospheric phenomena, there are also springtime polar tropospheric ozone depletion events.
The details of polar ozone hole formation differ from that of mid-latitude thinning, but the most important process in both is catalytic destruction of ozone by atomic halogens.[1] The main source of these halogen atoms in the stratosphere is photodissociation of man-made halocarbonrefrigerants (CFCs, freons, halons). These compounds are transported into the stratosphere after being emitted at the surface. [2] Both types of ozone depletion were observed to increase as emissions of halo-carbons increased.
CFCs and other contributory substances are referred to as ozone-depleting substances (ODS). Since the ozone layer prevents most harmful UVB wavelengths (280-315 nm) of ultraviolet light (UV light) from passing through the Earth's atmosphere, observed and projected decreases in ozone have generated worldwide concern leading to adoption of the Montreal Protocol that bans the production of CFCs, halons, and other ozone-depleting chemicals such as carbon tetrachloride and trichloroethane. It is suspected that a variety of biological consequences such as increases in skin cancer, cataracts,[3] damage to plants, and reduction of plankton populations in the ocean's photic zone may result from the increased UV exposure due to ozone depletion.
The ozone over Antarctica has been reduced significantly. The reduced ozone is of the size of Australia.
Reduced ozone layer causes skin cancer. It can also cause eye cataract.
Ozone gas present in the stratospheric region of our atmosphere in the form of ozone layer is the one most prominent gas which is responsible for the absorption of the harmul UV radiations coming from the sun.
If the ozone layer is reduced by 40 percent, UV will enter. This will cause extinction of life.
The ozone gas is not in the surface. It is in the atmosphere.
The ozone over Antarctica has been reduced significantly. The reduced ozone is of the size of Australia.
If the use of ODS is reduced. Then ozone depletion can be reduced.
The amount of ozone has reduced. It is due to CFC.
You are thinking of ozone.
Ozone. Which is entirely made up of oxygen atoms.Ozone gas from an ozone generator is usually mostly parent gas, with some percentage of ozone gas in it (replacing mass-per-mass, oxygen gas).
No the ozone layer has not disappeared. It has just reduced.
Ozone layer is formed of ozone. It is a gas.
Stratosphere contains the ozone gas. It is present as the ozone layer.
Reduced ozone layer causes skin cancer. It can also cause eye cataract.
Ozone gas present in the stratospheric region of our atmosphere in the form of ozone layer is the one most prominent gas which is responsible for the absorption of the harmul UV radiations coming from the sun.
recycling
If the ozone layer is reduced by 40 percent, UV will enter. This will cause extinction of life.