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Air pollution

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air pollution

air pollution

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  • 1.  
  • 2. What is Air pollution?
    • Air pollution is the introduction of chemicals , particulate matter , or biological materials that cause harm or discomfort to humans or other living organisms, or cause damage to the natural environment or built environment , into the atmosphere .
  • 3. Air Pollution Causes and Effects
    • First experienced harm from air pollution when they built fires in poorly ventilated caves.
    • Pollution problems have been local and minor because of the Earth's own ability to absorb and purify minor quantities of pollutants
  • 4.
    • The industrialization of society, the introduction of motorized vehicles, and the explosion of the population, are factors contributing toward the growing air pollution problem.
    Air Pollution Causes and Effects
  • 5.
    • The primary air pollutants found in most urban areas are carbon monoxide, nitrogen oxides, sulfur oxides, hydrocarbons, and particulate matter.
    • Carbon dioxide (CO2) is one of the major pollutants in the atmosphere. emissions are increasing by 4% a year.
  • 6. Effect air pollution SMOG
    • Photochemical smog is also appearing in regions of the tropics and subtropics where savanna grasses are periodically burned.
    • Smog's unpleasant properties result from the irradiation by sunlight of hydrocarbons caused primarily by unburned gasoline emitted by automobiles and other combustion sources
  • 7. SMOG The products of photochemical reactions includes organic particles, ozone, aldehydes, ketones, peroxyacetyl nitrate, organic acids, and other oxidants
  • 8.
    • Another form of smog is called industrial smog.
    • This smog is created by burning coal and heavy oil that contain sulfur impurities in power plants, industrial plants, etc
  • 9. Effect Air Pollution
    • Trees play an important role in producing oxygen from carbon dioxide.
    • Pollutants such as sulfur dioxide, nitrogen oxides, ozone and peroxyacl nitrates (PANs), cause direct damage to leaves of crop plants and trees when they enter leaf pores
  • 10. AIR POLLUTION CONCECUENCES
    • “ holes” in the ozone layer in the atmosphere above Antarctica and the Arctic, coupled with growing evidence of global ozone depletion
    • increase the amount of ultraviolet radiation reaching the earth.
    • can lead to skin cancer and cataracts
  • 11. SOLUTIONS AIR POLLUTION
    • To restrict population growth
    • Use less energy
    • Improve energy efficiency
    • Reduce waste,
  • 12. ^Do not wait for the right moment to take care of your environment. Do it now. If you wait for the right time, never stop waiting and the world is destroyed gradually^.

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