The ozone layer is a thin layer of the atmosphere which absorbs most of the sun's ultraviolet radiationit is composed of three atoms of oxygen (o3). The ozone layer is not really a layer at all, but has become known as such because most ozone particles are scattered between 19 and 30 kilometers (12 to 30 miles) up in the. Since the ozone layer absorbs uvb ultraviolet light from the sun, ozone layer depletion increases surface uvb levels (all else equal), which could lead to damage, including increase in skin cancer this was the reason for the montreal protocol. This video is about explanation of ozone layer depletion . The discovery of a major stratospheric ozone layer event (the ozone hole) over antarctica in 1985 fueled interest in ozone depletion as a potential health and ecological threat related to increased solar ultraviolet radiation.
Although ozone depletion has been a global issue, there is significant differences in distribution of ozone layer depletion across the world overall, ozone depletion increases with latitude with low levels of depletion at the equator and tropics, and highest depletion at the poles. 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. How to protect the ozone layer stratospheric ozone, otherwise known as the ozone layer, is a layer of gas (o3) that partially shields the earth from the sun's ultraviolet (uv) radiation.
The ozone layer is a belt of the naturally occurring gas ozone it sits 93 to 186 miles (15 to 30 kilometers) above earth, and serves as a shield from the harmful ultraviolet b (uvb) radiation . Ozone depletion describes the observed loss of ozone in the stratosphere over the past 50 years it encompasses both a steady thinning of the ozone layer at mid-latitudes and its catastrophic . Science: ozone depletion in the stratosphere, the region of the atmosphere between about 6 and 30 miles (10 and 50 kilometers) above the earth's surface, ozone (o3) plays a vital role by absorbing harmful ultraviolet radiation from the sun. This website addresses stratospheric ozone issues, including the science of ozone depletion, epa's regulatory approach to protecting the ozone layer, epa-approved alternatives to ozone-depleting substances, and sun safety. Increases in the substances that decrease the amount of ozone present free radicals, cfcs, chlorofluorocarbons (in aerosols and such) ozone depletion occurs when the natural balance between the .
The ozone hole image below shows the very low values (blue and purple colored area) centered over antarctica on 4 october 2004 the ozone layer stabilizes until . 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 ozone molecules in the atmosphere . Read chapter the ozone depletion phenomenon : like an infection that grows more and more virulent, the continent-size hole in earth's ozone layer keeps ge. Ozone depletion: ozone depletion, gradual thinning of earth’s ozone layer caused by the release of chemical compounds containing gaseous chlorine or bromine from industry and other human activities. Ozone layer depletion, is simply the wearing out (reduction) of the amount of ozone in the stratosphere unlike pollution, which has many types and causes, ozone depletion has been pinned down to one major human activity.
The skeptics vs the ozone hole human-generated cfcs were indeed destroying earth's protective ozone layer in fact, the ozone depletion was far worse than molina and roland had predicted no . Kids learn about the depletion of the ozone layer how cfcs have cause a hole in the ozone for teachers and students. Causes of ozone layer depletion unfortunately, the ozone layer isn’t nearly as stable as was previously thought human actions can have an enormous effect upon it in its entirety and due to upper stratospheric currents, the lack of concentration tends to pool in certain places.
Ozone is a gas that is present in the ozone layer in the stratosphere of the earth there, it will absorb almost all ultraviolet light which is harmful to many organisms the term ozone depletion can refer to a number of distinct, but related phenomena:. In 1985, joe farman, brian gardiner, and jon shanklin discovered depletion of the ozone layer over antarctica by as much as 70% in austral spring scientists suddenly realized that ozone depletion was a much bigger problem than had been thought. Global warming and ozone layer depletion will doubtless receive continuing attention from the media and professionals in the fields of science, economics, and social .
Depletion of the ozone layer and its impacts ozone layer, depleting substances, health and environmental effects. The earth's stratospheric ozone layer plays a critical role in absorbing ultraviolet radiation emitted by the sun in the last thirty years, it has been discovered that stratospheric ozone is. What is ozone layer depletion the ozone is a layer of gases in the stratosphere, which is a thick (20 km thick, to be precise) layer of gas that rests about 30-50 km above the surface of the earth. View the latest status of the ozone layer over the antarctic, with a focus on the ozone hole satellite instruments monitor the ozone layer, and we use their data to create the images that depict the amount of ozone.