Ozone depletion, gradual thinning of earth’s ozone layer in the upper atmosphere caused by the release of chemical compounds containing gaseous chlorine or bromine from industry and other human activities. The ozone layer begins 12 miles above the earth’s surface and is 8 miles thick ozone was first discovered in 1840 by christian friedrich schönbein he named it ozone, which is greek for ‘smell,’ because of its peculiar electrical scent. The ozone layer in the stratosphere is thin but powerful however, because it occurs in such a low concentration, it's vulnerable to ozone-depleting chemicals, such as cfcs. The ozone layer resides in the stratospheric layer of the earth’s atmosphere the layers which occupy the lower part of the atmosphere removes the unwanted pollutants from the earth’s surface ozone layer depletion. Ozone depletion describes two related events observed since the late 1970s: a steady lowering of about four percent in the total amount of ozone in earth's atmosphere (the ozone layer), and a much larger springtime decrease in stratospheric ozone around earth's polar regions.
The ozone layer is one layer of the stratosphere, the second layer of the earth’s atmospherethe stratosphere is the mass of protective gases clinging to our planet the stratosphere gets its name because it is stratified, or layered: as elevation increases, the stratosphere gets warmer the stratosphere increases in warmth with elevation because ozone gases in the upper layers absorb. The montreal protocol, finalized in 1987, is the international treaty designed to protect earth’s ozone layer it called for the phase-out of substances like cfc-11, whose production was slated. Earth's ozone layer shields us from harmful ultraviolet radiation nations have been working to reduce ozone-depleting chemicals since the 1980s, but recent studies show that there is still work. One dobson unit is the number of molecules of ozone that would be required to create a layer of pure ozone 001 millimeters thick at a temperature of 0 degrees celsius and a pressure of 1 atmosphere (the air pressure at the surface of the earth.
The ozone layer absorbs 97-99% of the sun's high frequency ultraviolet light, light which is potentially damaging to life on earth every 1% decrease in the earths ozone shield is projected to increases the amount of uv light exposure to the lower atmosphere by 2. Most ozone (about 90%) resides in a layer that begins between 6 and 10 miles (10 and 17 kilometers) above the earth's surface and extends up to about 30 miles (50 kilometers) this region of the atmosphere is called the stratosphere. Ozone layer, also called ozonosphere, region of the upper atmosphere, between roughly 15 and 35 km (9 and 22 miles) above earth’s surface, containing relatively high concentrations of ozone molecules (o 3. “the ozone layer or ozone shield is a region of earth’s stratosphere that absorbs most of the sun’s ultraviolet (uv) radiation it contains high concentrations of ozone (o3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere.
The term ‘ozone hole’ refers to the depletion of the protective ozone layer in the upper atmosphere (stratosphere) over earth's polar regions people, plants, and animals living under the ozone hole are harmed by the solar radiation now reaching the earth's surface—where it causes health problems, from eye damage to skin cancer. Here's a rare piece of good news about the environment: the giant hole in the earth's protective ozone layer is shrinking and has shriveled to its smallest peak since 1988, nasa scientists said. Basic ozone layer science the earth's ozone layer ozone layer the region of the stratosphere containing the bulk of atmospheric ozone the ozone layer lies approximately 15-40 kilometers (10-25 miles) above the earth's surface, in the stratosphere. View all of the antarctic hemisphere daily maps of total ozone for september 2018 satellite instruments monitor the ozone layer, and we use their data to create the images that depict the amount of ozone.
Without the ozone layer earth would be very different earth's gaseous envelope, the atmosphere, is made up of layers when present near the surface, ozone (an unstable molecule composed of three oxygen atoms) is a pollutant. The ozone layer is one of the most important source of protection that exists on earth it is a region of the stratosphere containing a high concentration of ozone, and it prevents a great amount of ultraviolet and other high-energy radiation from penetrating to the earth's surface. The stratospheric ozone layer is earth’s “sunscreen” – protecting living things from too much ultraviolet radiation the emission of ozone depleting substances has been damaging the ozone layer.
The discovery that cfcs deplete ozone was first announced in 1974, when the ozone layer was still relatively robust by 1989, an ozone hole had opened over antarctica, peaking in size in 2006 by year 2054 in the model, the ozone hole is permanent, and global ozone has dropped by 67 percent. 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. Editor’s note: curbing damage to earth’s protective ozone layer is widely viewed as one of the most important successes of the modern environmental era. The ozone layer is a region of concentration of the ozone (o3) molecule in the earth's atmosphere the layer sits at an altitude of about 10 to 50 kilometers, with a maximum concentration in the stratosphere at an altitude of approximately 25 kilometers.