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Important Facts For Prelims


  • 23 Nov 2019
  • 1 min read

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SAMEER App is one of the air pollution mitigation measures which provides hourly updates on the National Air Quality Index (AQI).

  • The app is developed by the Central Pollution Control Bureau (CPCB) which provides information on air quality for more than 100 cities across the country.
  • The app represents the listed cities in a colour-coded format based on their AQI levels.
  • The app can also be used to file or track complaints related to garbage dumping, road dust, vehicular emissions or other pollution issues in a particular area.

National Air Quality Index (AQI)

  • The AQI is an index for reporting daily air quality.
  • It focuses on health effects one might experience within a few hours or days after breathing polluted air.
  • AQI is calculated for eight major air pollutants:
    • Ground-level ozone,
    • PM10,
    • PM2.5,
    • Carbon monoxide,
    • Sulfur dioxide,
    • Nitrogen dioxide,
    • Ammonia,
    • Lead,
  • Ground-level ozone and airborne particles are the two pollutants that pose the greatest threat to human health in India.


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