Home »Current Affairs » Articles »Air Quality Index and Safar

Air Quality Index and Safar

Posted on : 29 Nov 2019

Views: 513

Air Quality Index and Safar

  • The AQI is an index for reporting daily air quality.
  • It tells you how clean or polluted your air is, and what associated health effects might be a concern for you.
  • The AQI focuses on health affects you may 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, Sulphur dioxide,Nitrogen dioxide,Ammonia, Lead.
  • There are six AQI categories, namely Good + Satisfactory, Moderately polluted, Poor, Very Poor, and Severe.


  • The System of Air Quality and Weather Forecasting And Research (SAFAR) is an initiative introduced by the Ministry of Earth Sciences (MoES)
  • The system is indigenously developed by the Indian Institute of Tropical Meteorology (IITM), Pune and is operationalized by the India Meteorological Department (IMD).
  • The giant true colour LED display gives out real-time air quality index on 24x7 basis with colour coding along with 72-hour advance forecast.
  • The system will be an integral part of India’s first Air Quality Early Warning System operational in Delhi.
  • SAFAR will accelerate public awareness and preparedness of air pollution and weather extremes.
  • It will also lead to better understanding of linkages among emissions, weather, pollution and climate. It will monitor all weather parameters like temperature, rainfall, humidity, and wind speed and wind direction.
  • In addition to regular air quality parameters like PM2.5, PM10, Sulphur Dioxide, Ozone, Nitrogen Oxides, Carbon Monoxide, the system will also monitor the existence of Benzene, Toluene and Xylene.
  • SAFAR system would benefit cost savings to several other sectors like agriculture, aviation, infrastructure, disaster management skill, tourism and many others, which directly or indirectly get affected by air quality and weather.  

Article Related Questions

  1. Consider the following statements regarding “Air Quality Index”
    1.The AQI is an index for reporting weekly air quality.
    2. AQI is calculated for eight major air pollutants which includes carbon dioxide.
    3. There are six AQI categories, namely Good, Satisfactory, Moderately polluted, Poor, Very Poor, and Severe.
    Which of the above statement is/are correct?

  2. 1.1 and 2 only

    2.2 and 3 only

    3.3 only

    4.1, 2 and 3

    Right Ans : 3 only

  3. The 1857 Uprising was the culmination of the recurrent big and small local rebellions that occured in the preceding hundred years of British Rule. Elucidate (Answer in 150 words) - 2019 Mains

Read More Current-Affairs Articles

See More Products