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1 - 1 - Types of Pollution

Types of Pollution

Paul74
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1 - 1 - Types of Pollution

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  1. What is Pollution?

  2. There is pollution when…

  3. Pollution is… When harmful substancescontaminate the environment it is called pollution.

  4. Pollution is… Any undesirable change in the physical, chemical, biological characteristics of any component of the environment which can cause harm to life and property.

  5. Types of Pollution

  6. Air Pollution

  7. What is Atmosphere? The layer of gases surrounding the surface of the planet earth.

  8. The air… Air supplies us with oxygen which is essential for our bodies to live.

  9. Air Pollution Gases: CO Radioactive: rado-222, Iodine-131 Particulate matter: dust, smoke, fumes Air pollution is the presence of substances in the atmosphere.

  10. Sources of Air Pollution

  11. Air pollutants may be particulate or gaseous. On the basis of origin they are divided as Primary pollutants ---- Are emitted directly from the point source. e.g. : CO, NO2, SO2 Secondary pollutants ---- formed by interaction of primary pollutants. e.g. : PAN, Smog, Ozone etc Classification of Air Pollutants

  12. Many people spend large portion of time indoors - as much as 80-90% of their lives. We work, study, eat, drink and sleep in enclosed environments where air circulation may be restricted Children, women more exposed to risk Radon gas Burning of dung cakes for fuel, wood, kerosene Incomplete combustion produces CO Cigarette smoke. Indoor air pollution

  13. Indoor air pollution

  14. Air Pollution affects??? Human health Animals Plants Materials Environment Effects of Air Pollution

  15. Effect on Human health

  16. Pollutants enter through stomata Effect on Plants

  17. Destroy chlorophyll and Affect photosynthesis Effect on Plants

  18. Necrosis – Damage to Leaf Structure Effect on Plants

  19. Cuticle( Wax Layer on Leaves) is lost Effect on Plants

  20. Chlorosis - Loss/ reduction of Chlorophyll Effect on Plants

  21. Epinasty – Downward curling of Leaf Effect on Plants

  22. Abscission - Dropping of leaf Effect on Plants

  23. Effect on materials • Corrosion of metal surfaces, fading

  24. Effect on materials • SO2 & water form H2S – corrosion as well as disfigurement of statues made up of limestone or Marble

  25. Effect on materials • Ozone causes crackling of rubber

  26. Effect on Animals • Air pollutants mix with rain water and increase acidity (Acid Rain) of water body and kill fish.

  27. Visibility Photochemical Smog Global Warming Ozone Depletion Effect on Environment

  28. Control of Air Pollution

  29. Control of Air Pollution Regular engine tune up, replacement of old more polluting vehicles

  30. Using mass transport system, bicycles etc Control of Air Pollution

  31. Planting more trees Control of Air Pollution

  32. No to FIRE CRACKERS Control of Air Pollution

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