sept 16

1. OZONE DAY
ANU SAJI
PHYSICAL SCIENCE

2. FATHER OF OZONE LAYER

3. WHAT IS OZONE LAYER?
• Region of earth’s stratosphere
• Made of three oxygen molecules
• Absorbs UV radiations

4. OZONE LAYER DEPLETION

5. WHAT IS OZONE LAYER DEPLETION?
• Thinning of ozone layer
• Chlorine and Bromine atoms are responsible
• Chlorofluorocarbons are the most abundant ozone-depleting substances
• One chlorine can destroy 100,000 molecules of ozone

6. CAUSES OF OZONE LAYER DEPLETION
• Chlorofluorocarbons
• Unregulated Rocket Launches
• Nitrogenous Compounds
• Natural Causes
• The volcanic eruptions

7. OZONE DEPLETING SUBSTANCES
Ozone-Depleting Substances Sources
Chlorofluorocarbons (CFCs) Refrigerators, air-conditioners,
solvents, dry-cleaning agents, etc.
Halons Fire-extinguishers
Carbon tetrachloride Fire extinguishers, solvents
Methyl chloroform Adhesives, aerosols
Hydrofluorocarbons Solvent cleaning, fire extinguishers,
solvent cleaning

8. EFFFECTS OF OZONE LAYER
DEPLETION
• Effects Of Ozone Layer Depletion
• Effects on Human Health
• Effects on Animals
• Effects on the Environment
• Effects on Marine Life

9. SOLUTIONS TO OZONE LAYER
DEPLETION
• Avoid Using Pesticides
• Minimize the Use of Vehicles
• Use Eco-friendly Cleaning Products
• The Use of Nitrous Oxide should be Prohibited