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Question
How is ozone formed in the upper atmosphere? Why is the damage of ozone layer is a cause of concern to us?
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Solution
Dear Student,
Ozone in the upper layer of atmosphere ( stratosphere) is called good ozone. It is a protective layer of molecules, each containing three atoms of oxygen (O3). In the upper atmosphere, ozone is produced when ultraviolet radiations act on molecules of diatomic oxygen (O 2 ). Oxygen atoms released by action of UV on diatomic oxygen, further combine with other diatomic oxygen molecules to form triatomic molecule of oxygen called ozone (O 3 ).Ozone is thermodynamically unstable. It absorbs the UV radiations to give a molecule of diatomic oxygen. These processes of formation and breakdown of ozone molecules continue in a balanced way in the upper atmosphere.
Consequences of o zone depletion:
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It causes skin darkening, skin cancer, ageing, and corneal cataracts in human beings.
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It can result in the death of many phytoplanktons that leads to increased global warming.
To limit the damage to the ozone layer, the release of CFCs into the atmosphere must be reduced. CFCs used as refrigerants and in fire extinguishers should be replaced with environmentally-safe alternatives. Also, the release of CFCs through industrial activities should be controlled.
Regards
Ozone in the upper layer of atmosphere ( stratosphere) is called good ozone. It is a protective layer of molecules, each containing three atoms of oxygen (O3). In the upper atmosphere, ozone is produced when ultraviolet radiations act on molecules of diatomic oxygen (O 2 ). Oxygen atoms released by action of UV on diatomic oxygen, further combine with other diatomic oxygen molecules to form triatomic molecule of oxygen called ozone (O 3 ).Ozone is thermodynamically unstable. It absorbs the UV radiations to give a molecule of diatomic oxygen. These processes of formation and breakdown of ozone molecules continue in a balanced way in the upper atmosphere.
Consequences of o zone depletion:
-
It causes skin darkening, skin cancer, ageing, and corneal cataracts in human beings.
-
It can result in the death of many phytoplanktons that leads to increased global warming.
To limit the damage to the ozone layer, the release of CFCs into the atmosphere must be reduced. CFCs used as refrigerants and in fire extinguishers should be replaced with environmentally-safe alternatives. Also, the release of CFCs through industrial activities should be controlled.
Regards
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