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Economics:Enviornmental Pollution

Enviornmental Pollution -Classification Of Pollution
Natural Pollution,Artificial Pollution

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Economics:Enviornmental Pollution

  1. 1. ENVIORNMENTAL POLLUTION Athira Bhaskar Assistant Professor Department of Economics St. Mary’s College Thrissur
  2. 2. Environmental pollution, Athira Bhaskar,St.Mary’s College Environmental Pollution “Environmental pollution is defined as the unfavorable alteration of our surroundings wholly as a by-product of man’s activities, through direct or indirect effects of changes in the physical,chemical,and biological characteristics of the land, air or water that harmfully affect human life or any desirable living thing.”
  3. 3. Environmental pollution, Athira Bhaskar,St.Mary’s College CLASSIFICATION OF POLLUTION NATURAL POLLUTION ARTIFICIAL/MAN-MADE POLLUTION ENVIRONMENTAL POLLUTION
  4. 4. Environmental pollution, Athira Bhaskar,St.Mary’s College NATURAL POLLUTION • It originate from natural processes or sources such as hydrocarbons or sources such as hydrocarbons in atmosphere, radiation pollution coming from the sun or radio active materials found in nature, oxides of carbons,sulphur etc..coming out from volcanic activity. ARTIFICIAL POLLUTION • It originates due to the activities of man such as lead aerosols in atmosphere coming from automobile exhaust, chlorinated hydrocarbons from excessive use of pesticides etc.
  5. 5. Environmental pollution, Athira Bhaskar,St.Mary’s College Type of pollution Water pollution Soil pollution Noise pollution Air pollution
  6. 6. Environmental pollution, Athira Bhaskar,St.Mary’s College Air pollution Gaseous pollutants Particulate pollutants Two main factors responsible for air pollution are population increase and productivity increase.
  7. 7. Water pollution Minerals and organic wastes are carried to the rivers,streams,lakes and the seas from agricultural fields where fertilisers,pesticides and herbicides are given throughout the year. Drinking of such water by cattle and human beings causes serious diseases. Environmental pollution, Athira Bhaskar,St.Mary’s College
  8. 8. Environmental pollution, Athira Bhaskar,St.Mary’s College Soil pollution • Increased agricultural activity has created an imbalance in nature. • Soil erosion, unplanned irrigation,overgrazing,deforestation and other defective agricultural practices lead to formation of deserts.
  9. 9. Noise pollution • Various kinds of undesirable loud sounds, which disturb the environment are called noise pollutants. Environmental pollution, Athira Bhaskar,St.Mary’s College
  10. 10. Environmental pollution and problems Human health Fresh water decline Change in the climate Stratospheric ozone depletion Biodiversity loss and ecosystem function Environmental pollution, Athira Bhaskar,St.Mary’s College
  11. 11. Green solutions • Protect natural areas • Reduce amount of garbage • Avoid cutting down trees. • Reuse, recycle and reduce. • Managing fuel type • Adopting measures to manage the use of motor vehicles. • recycling of water must be encouraged. • Industrial wastes must be treated before discharge. Environmental pollution, Athira Bhaskar,St.Mary’s College
  12. 12. THANK YOU Environmental pollution, Athira Bhaskar,St.Mary’s College

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