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OZONE DEPLETION Reasons, Impacts, Prevention By Reshma.A G overnment Engineering College T hrissur
INTRODUCTION
OZONE ,[object Object],[object Object],[object Object],[object Object],[object Object]
Troposphere Tropopause Stratosphere Stratopause Mesosphere Mesopause Thermosphere Thermopause Exosphere Ionosphere Ozone layer 7.16Km 50km 80Km 500Km
Oxygen molecules(O2) SUN UV Rays OZONE PHOTOLYSIS
OZONE  LAYER UV Rays UV Ray EARTH
DISCOVERY OF OZONE    DEPLETION ,[object Object],[object Object],[object Object],Team who discovered the hole 1985.  From left: Joe Farman, Brian Gardiner, and Jonathan Shanklin
Total Ozone Mapping Spectrometer (TOMS) ,[object Object],[object Object],[object Object],[object Object]
FORMATION OF HOLE ,[object Object],[object Object],[object Object],[object Object]
Meteorological Mechanism ,[object Object],[object Object],[object Object]
Chemical Mechanism ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
RECEPIE OF OZONE DEPLETION ,[object Object],[object Object],[object Object],[object Object]
Ozone Depleting Substance
REASONS for Ozone Depletion ,[object Object],[object Object],[object Object]
OZONE HOLE 1995-2008
Stratospheric Ozone and  Ultraviolet Radiation (UVR)
IMPACT  OF  OZONE DEPLETION
[object Object],[object Object],[object Object],[object Object],EFFECTS ON HUMAN HEALTH
SKIN CANCER Malignant melanoma  - Fastest growing type of  cancer in the united states. Risk of malignant melanoma has increased 10%  Nonmalignant melanoma -  less deadly than malignant melanoma Risk of nonmalignant melanoma has increased 26% Basal carcinomas  –small tumors, fleshy bumps or nodules .penetrate into bones. Squamous Cell Carcinomas  -unlike basal cell carcinoma it can spread to other parts of the body.  Basal Carcinomas Squamous cell carcinomas malignant Non-malignant
[object Object],Actinic keratoses and premature aging of the skin
Cataracts and other Eye damage ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],vitreous humor Cornea  is encountered first Then   the lens cataracts Pterygium Cancer
EFFECTS ON PLANTS Environmental Effects of Ozone Depletion on plants
DNA & UV-B ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
EFFECT ON MARINE ECOSYSTEM Phytoplankton ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Global Decline Seen In Amphibians ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
EFFECTS ON BIOGROCHEMICAL CYCLES ,[object Object],[object Object]
EFFECTS ON MATERIALS ,[object Object],[object Object]
○ MONTREAL PROTOCOL(1987) ○ THE ENVIRONMENTAL AGENCY(EPA) STEPS AGAINST OZONE DEPLETION
Prevention of Ozone Depletion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Protection ,[object Object],[object Object],[object Object],[object Object]
GLOBAL WARMING
GLOBAL WARMING ,[object Object],[object Object],[object Object]
GREENHOUSE  EFFECT
GREENHOUSE GASES life givers and life takers CO2 produced in different countries ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
(3)Nitrous Oxide – Nothing to Laugh About ,[object Object],[object Object],[object Object],[object Object]
EFFECTS OF GLOBAL WARMING ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
FLOODING
DROUGHT
EXTREAM  HEAT  WAVES
RISING SEA LEVELS
MELTING OF GLACIERS
HEALTH HAZARDS ,[object Object],[object Object],[object Object],[object Object]
ECOLOGICAL IMBALANCE
CARBON FOOTPRINT ,[object Object]
STEPS AGAINST Global Warming ,[object Object],[object Object],[object Object],[object Object],[object Object]
TO STOP GLOBAL WARMING….
1.Clean or replace filters on your furnace and air conditioner. 2.Choose energy efficient apparatus. 3.Do not leave appliances stand by. 4.Recycle your organic waste. 5.Plant a tree. 6.Switch to green power. 7.Encourage the switch up to renewable energy. 8.Protect and conserve forest worldwide 9.Buy Organic food as much as possible. 10.Recycle and Reuse. 11.Steps from the Government .
pace Sunshades Roger Angel at the University of Arizona has proposed launching trillions of space shades into orbit between the sun and Earth.  reduce sunlight hitting Earth by 2%. Expensive.
Cloud  Seeding   reflect more sunlight back into space is to increase reflectivity of the world's marine clouds John Latham and Stephen Salter proposed wind-powered yachts (pictured) that would spray seawater droplets into the air to produce more clouds. Studies are going.
Ocean Iron  Enrichment Sprinkling iron dust can trigger plankton blooms in ocean waters plankton would be able to absorb more carbon dioxide
Ocean  Tubes   Proposed by James lovelock and Chris Rapley. Thousands of giant plastic tubes in the ocean with a one-way valve to push deep water through the tubes to the surface It’ll emit a chemical called  dimethyl sulfide , which stimulates the formation of sun-reflecting clouds.
Biochar A biomass-derived black carbon To enrich agricultural soils and capture carbon dioxide Produced by a process called pyrolysis
Green Cars For a Warming World
CONCLUSION
[object Object],[object Object],[object Object]

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Ozone Depletion and Global Warming

  • 1. OZONE DEPLETION Reasons, Impacts, Prevention By Reshma.A G overnment Engineering College T hrissur
  • 3.
  • 4. Troposphere Tropopause Stratosphere Stratopause Mesosphere Mesopause Thermosphere Thermopause Exosphere Ionosphere Ozone layer 7.16Km 50km 80Km 500Km
  • 5. Oxygen molecules(O2) SUN UV Rays OZONE PHOTOLYSIS
  • 6. OZONE LAYER UV Rays UV Ray EARTH
  • 7.
  • 8.
  • 9.
  • 10.
  • 11.
  • 12.
  • 14.
  • 16. Stratospheric Ozone and Ultraviolet Radiation (UVR)
  • 17. IMPACT OF OZONE DEPLETION
  • 18.
  • 19. SKIN CANCER Malignant melanoma - Fastest growing type of cancer in the united states. Risk of malignant melanoma has increased 10% Nonmalignant melanoma - less deadly than malignant melanoma Risk of nonmalignant melanoma has increased 26% Basal carcinomas –small tumors, fleshy bumps or nodules .penetrate into bones. Squamous Cell Carcinomas -unlike basal cell carcinoma it can spread to other parts of the body. Basal Carcinomas Squamous cell carcinomas malignant Non-malignant
  • 20.
  • 21.
  • 22. EFFECTS ON PLANTS Environmental Effects of Ozone Depletion on plants
  • 23.
  • 24.
  • 25.
  • 26.
  • 27.
  • 28. ○ MONTREAL PROTOCOL(1987) ○ THE ENVIRONMENTAL AGENCY(EPA) STEPS AGAINST OZONE DEPLETION
  • 29.
  • 30.
  • 32.
  • 34.
  • 35.
  • 36.
  • 37.
  • 40. EXTREAM HEAT WAVES
  • 43.
  • 45.
  • 46.
  • 47. TO STOP GLOBAL WARMING….
  • 48. 1.Clean or replace filters on your furnace and air conditioner. 2.Choose energy efficient apparatus. 3.Do not leave appliances stand by. 4.Recycle your organic waste. 5.Plant a tree. 6.Switch to green power. 7.Encourage the switch up to renewable energy. 8.Protect and conserve forest worldwide 9.Buy Organic food as much as possible. 10.Recycle and Reuse. 11.Steps from the Government .
  • 49. pace Sunshades Roger Angel at the University of Arizona has proposed launching trillions of space shades into orbit between the sun and Earth. reduce sunlight hitting Earth by 2%. Expensive.
  • 50. Cloud Seeding reflect more sunlight back into space is to increase reflectivity of the world's marine clouds John Latham and Stephen Salter proposed wind-powered yachts (pictured) that would spray seawater droplets into the air to produce more clouds. Studies are going.
  • 51. Ocean Iron Enrichment Sprinkling iron dust can trigger plankton blooms in ocean waters plankton would be able to absorb more carbon dioxide
  • 52. Ocean Tubes Proposed by James lovelock and Chris Rapley. Thousands of giant plastic tubes in the ocean with a one-way valve to push deep water through the tubes to the surface It’ll emit a chemical called dimethyl sulfide , which stimulates the formation of sun-reflecting clouds.
  • 53. Biochar A biomass-derived black carbon To enrich agricultural soils and capture carbon dioxide Produced by a process called pyrolysis
  • 54. Green Cars For a Warming World
  • 56.