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Air Quality Index and spoiled air over Delhi

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  • Published
    5th Nov, 2020

  • Permissible level of particulate matter in India is - PM2.5 is 60ug/m3 and PM 10 is 100ug/m3.

Factors for air spoiler in Delhi

  • Strong subsidence over city
  • Low wind speed
  • Accumulation of smoke from stubble fires
  • Low temperature
  • Fluctuation in wind direction