The ozone layer: what is it the ozone layer is a portion of earths atmosphere that contains high levels of ozone the atmosphere is divided into five layers: the troposphere, the stratosphere, the mesosphere, the thermosphere, and the exosphere the troposphere is the layer closest to earth and is where all weather happenings occur. Nasa ozone watch reports that the largest tear within the ozone layer is located over antarctica, and that the damage is due to extreme reactions between unnaturally high concentrations of bromine and chlorine gases trapped within the layers of the atmosphere. The ozone layer lies between about 93 and 186 miles (15 and 30 kilometers) above earth's surface this blanket of ozone, or o3, blocks most of the sun's high-frequency ultraviolet rays.
The ozone layer that protects life on earth from harmful uv rays is showing promising signs of recovery, according to a report issued by the un environment programme and the world meteorological organisation. The ozone layer is a thin layer in the atmosphere at an altitude of about 20-30 km that has a high concentration of ozone gas it is made up of three atoms of oxygen and is represented as o 3. The ozone layer prevents a portion ultraviolet light from reaching the earth's surface full strngth ultraviolet light would damage plants and animals by sunburning them or causing cancer the. A global thinning of the ozone layer results as ozone-rich air from the remaining ozone layer flows into the ozone-poor areas minimum ozone levels in the antarctic decreased steadily throughout the 1990s, and less dramatic decreases have been found above other areas of the world.
Ozone depletion in the stratosphere evpp 111 lecture dr largen ozone layer a layer of ozone in lower stratosphere keeps ~95% of the sun's harmful uv radiation from reaching earth's surface. The ozone depletion has led to a worldwide concern as the thinning protective coat over earth is letting harmful ultraviolet light pass due to this, it is also taking a toll on our health and the environment therefore many governments are taking measures to prevent ozone depletion. The ozone layer in earth's upper atmosphere has stopped thinning, concludes a new report a 1987 treaty that phased out the use of cfcs is believed to have worked to halt the thinning. Ozone depletion describes two distinct, but related observations: a slow, steady decline of about 4 percent per decade in the total amount of ozone in earth's stratosphere since around 1980 and a much larger, but seasonal, decrease in stratospheric ozone over earth's polar regions during the same period. The ozone layer that protects people from the sun's ultraviolet radiation is not recovering over most highly populated regions, scientists warned on tuesday.
Im observing through different channels and on the uv sensor that the ozone values are very low in connection with an anticyclone over scandinaviadu measurements last weekend were as high as 470 today they were 320this has an great impact on the uv indekses making values go 0,7-0,8 higher than normal average( +/- 10 % on the indeks for every 10% +/- on the du scale) for this date. Ultraviolet reflections: life under a thinning ozone layer examines the effects of increasing uv radiation on people, plants and animals it takes the reader on a journey from the antarctic ozone hole to the arctic birch forest, to see how plankton and plants will fare against increasing uv radiation. The ozone layer has been an important part of the discussion surrounding environmental conservationism and man-made climate change for decades back in the '80s, world leaders held an important.
Solutions to prevent depletion of the ozone layer involve banning the use of chemicals that cause ozone depletion, such as chlorofluorocarbons and hydrofluorocarbons national laws and international treaties help accelerate the control of ozone-depleting substances. The ozone layer is a layer of oxygen gas with the atoms put together in a special way it is found about 19-30km up in the stratosphere the ozone layer is often in the news because humans are damaging it and we, plants and animals would die without it. A layer of gas called ozone sits up around 25-30 kms above the earth's surface ozone is made up of oxygen and is produced naturally in the atmosphere.
The ozone layer functions to protect the earth from harmful radiation that is emitted by the sun it is thinning due to the release of man-made compounds called chlorofluorocarbons (cfc) the net effect that cfcs have on the ozone layer is to recombine an oxygen atom with an ozone molecule to form two oxygen molecules. Ozone layer damage is more like a really thin patch than a hole the ozone layer is thinnest near the pole s in the 1970s, people all over the world started realizing that the ozone layer was getting thinner and that this was a bad thing. The ozone layer is thinning in places around the equator the planet's natural protection from uv radiation may be in danger over some of the world's most populous areas.
A version of this article appears in print on march 1, 1994, on page c00004 of the national edition with the headline: thinning ozone layer implicated in decline of frogs and toads. The main things that lead to destruction of the ozone gas in the ozone layer low temperatures, increase in the level of chlorine and bromine gases in the upper stratosphere are some of the reasons that leads to ozone layer depletion. 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.