In general, some countries are adhering with the international agreements on crossing out chemicals such as CFCs and methyl bromide in their industries but the shortcomings of these phasing out is some other countries are finding its way to formulate substitutes for the substances in developing countries.
In spite of being a trace gas, it plays a major role in the maintenance of climate and biology of earth. For the ozone layer to return to its natural state, Ozone depletion essay example chlorine loading which is presently 3 ppbv has to be brought down to a level below 2 ppbv.
Now chlorine monoxide reacts with an ozone molecule Ozone depletion essay example form a chlorine atom and two molecules of oxygen. Some other ozone depleting agents are the gases emitted in the stratosphere from the exhaust from planes, the gas will remain up to two years in the stratosphere resulting to short-lived damage to the ozone layer compared to CFCs and methyl bromide.
We also are encouraged to walk and avoid using vehicles if we can. It was thus realized that there is a growing probability of damage to ozone layer by human activities.
It is present in traces less than 1 ppm in the atmosphere. Since the early seventies, when CFCs came into market, a large quantity has been injected into the atmosphere. The depletion of the ozone has become a worldwide issue and is caused by the release of CFCs into the atmosphere.
But the possibility that it can happen is that certain man-made group of compounds can destroy the million layers of ozone, this was claimed by two experts namely Drs. It is said that it will take almost 20 years longer to completely recover the ozone hole according to studies.
The depletion of the ozone layer threatens to leave life on Earth unprotected from UV radiation. CFCs may trap heat and thus contribute to the global warming. Ozone, ozone holes and its impact on our environment: In conclusion, we should start now to care for and save our earth.
We have to ban the use of CFCs products. The Ozone Depletion Phenomenon. The splitting of chlorine atoms from the chloroflurocarbons. CFCs released up toamounted to 15 million tones. Most of it is concentrated in the ozone layer, a region located in the stratosphere several miles above the surface of the Earth.
In addition, figure 1 from the reference shows that the UV radiation may damage crops, kill plankton that serve as a food source for marine life. We are suggested to use the renewable sources, for examples, wind, solar energy, and so on.
The air we breathe is in the form of oxygen molecules O2 — two atoms of oxygen link together, its colorless and odorless, on the other hand, ozone is also a form of oxygen and is colorless, it is created in the stratosphere when UV radiation from the sun strikes the oxygen and is split up to form ozone, it has a very disturbing odor like that of a burnt electric wire.
They suggested that a compound created in industries known as chlorofluorocarbons — contains chlorine atoms, fluorine atoms and carbon atoms, such as commonly used in coolants in refrigeration and air conditioners, as solvents in cleaners, as blowing agents in the production of foam examples are fire extinguishers, and as propellants in aerosols.
Saving the ozone layer: The usual ozone concentration is at to Dobson Units. It has been released into the atmosphere and has contributed to the depletion of this important protective layer.
It can also trigger another chemical substances produced that in any rate can destroy the ozone layer. However, the depletion of the ozone is not only caused by CFCs. The O3 readily absorbs UV light and dissociates into its constituent components. It filters out all radiations below A0 UV-B radiations that are biologically harmful, and controls the heat budget of the earth.
UV radiation strikes the surface of the earth while the ozone layer prevents the rays from coming.For examples, LensMan (unknown) stresses that the ozone depletion will lead an increase in the percentage of skin cancer and cataracts.
In addition, figure 1 from the reference shows that the UV radiation may damage crops, kill plankton that serve as a food source for marine life.
Like for example the substitute for CFCs are the HFCs, a greenhouse gas but has lesser contribution to ozone depletion. Another positive response to alleviate ozone depletion and stands as a model of global collaboration is the Montreal Protocol on Substances that Deplete the Ozone Layer.
Effects of Ozone depletion There is a widespread public and scientific concern and interest about the loss of ozone in the atmosphere.
This is informed by the devastating effects of a depleted ozone when it comes into contact with life forms. Ozone works like an umbrella and protects from the harmful UV radiations coming from cosmic rays to earth.
In spite of being a trace gas, it plays a major role in the maintenance of climate and biology of earth.
Ozone Depletion essaysTHE PROBLEM (INTRO) The poisoning of the Earth's ozone layer is increasingly attracting worldwide concern for the global environment and the health effects of life on the Planet Earth.
@Example Essays. Ozone Depletion Bibliography. 8 Pages There is not just one particular cause for the ozone's depletion.
Since ozone filters UV radiation, with ozone depletion comes higher levels of UV radiation hitting the surface of the Earth. The increase in ultra-violet rays consequently mean higher risk of skin cancers and cataracts in humans and animals.Download