National Air Quality Index

  • This index is launched under Swacch Bharat Abhiyan in 2014
  • Aim is ‘one number- one colour-one description’ for

the common man to judge the air quality within his vicinity

  • Air quality is declared in 6 categories
  • Index considers eight pollutants i.e. PM10, PM2.5,

NO2, SO2, CO, O3, NH3, and Pb for which short-term (up to

24-hourly averaging period) National Ambient Air Quality

Standards are prescribed



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