Atmospheric Pollution

Atmospheric pollution mostly has natural sources of pollution, for example volcanic eruptions. The term is usually used to refer to the gaseous by-products of man-made processes such as energy production, waste incineration, transport, deforestation and agriculture. During the last 200 years, mankind has begun to significantly alter the atmospheric composition and environment through pollution. Although air is mostly made up of oxygen and nitrogen, mankind, through its pollution, has increased the levels of many trace gases, and in some cases, released completely new gases to the atmosphere. Some of these trace gases, present in elevated concentrations, is harmful to both humans as well as environment.

Atmospheric pollution is the availability of harmful substances in the atmosphere in gaseous, liquid, or solid form. Pollution of the atmosphere can be caused by various pollutants including particulate matter: this consists of aerosols in liquids, solids or gases suspended in the atmosphere due to burning of coal in industrial processes. The presence of aerosols in the air hastens the corroding and erosion of metals and building materials respectively. Inhalation of air containing particulate matter can interfere with the respiratory system of humans. This can result in cancer, asthma, bronchitis or other diseases.

  • Formation and sustenance of stratospheric ozone
  • Depletion of stratospheric ozone
  • Emission of CO2 and models of climatic changes
  • Current developments in pollution control
  • The effects of atmospheric changes on human health
  • Primary and secondary air pollutants
  • Aerosols
  • Smog
  • Green houe gases and climate change
  • Acid and mercury deposition
  • Stratospheric zone

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