The ozone layer and the factors contributing to its destruction

Life is protected from UV rays by stratospheric ozone layer which acts as a shield or sun screen [2]. This has led to an increase in the UV radiation reaching the earth.

human activities that cause ozone depletion

Print Destruction of the Ozone Layer - The Causes Chlorofluorocarbons CFCs have been identified as the main cause of the destruction to the ozone layer, but there are also compounds containing bromine, other halogen compounds and also nitrogen oxides which cause damage.

While several substances were addressed, CHCs and HCFCs were the main ones that the international community agreed to phase out of production. Not all chlorine and bromine sources contribute to ozone layer depletion. It is revealed that introduction of Chloroflourocarbons CFCs in the environment is the most rated cause of said depiction.

ozone layer depletion facts

In our present study, we shall discuss how ozone layer depletion is affecting human health and we shall also discuss some recommendations to minimize ozone depletion and its adverse effects on human health. In such conditions the ice crystals of the cloud provide a suitable surface for conversion of unreactive chlorine compounds into reactive chlorine compounds, which can deplete ozone easily.

Ozone O3 is a highly reactive gas whose molecules are comprised of three oxygen atoms. Environmental Fact Sheet. Chloroflourocarbons are major cause of ozone depletion.

Ozone layer and global warming wikipedia

We should also use sun block creams to our most exposed parts of body like face. Ozone is formed in the stratosphere when oxygen molecules photodissociate after absorbing ultraviolet photons. In Paul Crutzen pointed out that emissions of nitrous oxide N 2O , a stable, long-lived gas produced by soil bacteria, from the Earth's surface could affect the amount of nitric oxide NO in the stratosphere. Photokeratitis, cataract, blindness all are caused due to UV rays [18]. Effects on Eyes The major cause of blindness in this world is cataracts. It is estimated that if rocket launches will be let unregulated then it would cause huge ozone loss by the year than the CFCs have done [1]. This is why they have gained popularity over the years. The oxygen atom then joins up with an oxygen molecule to regenerate ozone. The process of ozone formation is called as photolysis. Epidemiological studies of Melanoma indicate that the incidence of melanoma is increasing in those countries having high ratio of cases [21] - [23]. Biological effects[ edit ] The main public concern regarding the ozone hole has been the effects of increased surface UV radiation on human health. The atmosphere acts like a multi-layer shield that protects Earth from dangerous solar radiation. Climate Ozone Depletion The ozone layer helps to protect life from harmful ultraviolet radiation. Ozone layer is also naturally broken down but there is a balance between its formation and natural depletion. Here on Universe Today we have a great article about what the ozone is and means to us.
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Is There a Connection Between the Ozone Hole and Global Warming?