Ozone Depletion The ozone layer is a protective shield of ozone [0 2 ] in the upper area of the...
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Transcript of Ozone Depletion The ozone layer is a protective shield of ozone [0 2 ] in the upper area of the...
![Page 1: Ozone Depletion The ozone layer is a protective shield of ozone [0 2 ] in the upper area of the atmosphere.](https://reader036.fdocuments.in/reader036/viewer/2022082711/56649ed35503460f94be2b5e/html5/thumbnails/1.jpg)
Ozone Depletion
The ozone layer is a protective shield of ozone [02] in the upper
area of the atmosphere.
![Page 2: Ozone Depletion The ozone layer is a protective shield of ozone [0 2 ] in the upper area of the atmosphere.](https://reader036.fdocuments.in/reader036/viewer/2022082711/56649ed35503460f94be2b5e/html5/thumbnails/2.jpg)
Ozone Layer
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What is ozone depletion?
• There used to be much more ozone in the stratosphere
• This thinning of the ozone layer is called ozone depletion
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Explain the human actions that may have caused this problem.• Widespread use of chemicals that thin
the ozone such as CFCs are responsible for the thinning ozone
• CFCs were first used as refrigerants ,cleaning fluids , and air conditioners
• Other CFC carrying products are shaving creams, hairsprays, deodorants, paints, and insecticides packaged in spray cans.
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How does this problem negatively affect humans?
• Increased UV radiation that can cause skin cancer and cataracts
• Exposure to too much UV rays can cause sunburn of the cornea
Cancerous moles
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How does ozone depletion negative affect surrounding ecosystems?
• Increased UV radiation reaching the earth’s surface from ozone depletion in the stratosphere harms crops, forests, animals, and other materials.
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How does ozone depletion negative affect surrounding ecosystems? (cont.)
Crops destroyed by UV rays
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What could happen in the future if this problem is not fixed?
• If this problem is not fixed there could be severe damage to peoples health, crops, and other animals.
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Explain positive actions that people can do or have done to reduce the problem.
• Canada banned the use of CFCs• Avoid installing CFC-dependant ari
conditioning systems
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Why leave the problem?
• The increased number UV ray also boosts the ammount of vitamin D
• Vitamin D is important in the maintenance of organ systems