TNPSC Thervupettagam

Air Pollution in India

May 2 , 2020 1798 days 1112 0
  • The NASA announced that Air Pollution in India has reached 20 year low.
  • According to the data published by NASA, the Aerosol Optical Depth (AOD) in 2020 has been the least as compared to the average of 2016 to 2019.
  • Aerosol Optical Depth is absorption of light by airborne particles in the atmosphere.
  • The aerosols are particles in atmosphere released due to anthropogenic activities
  • The Aerosol Optical Depth is the quantitative measure of aerosols present in the atmosphere. 
  • It measures the extinction of light when it passes through the atmosphere. 
  • As AOD increases, the rate of extinction of light increases.

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