Air Pollution

CPCB officials stress need for uniform air quality data

India now grades air quality along a colour-coded chart based on pollutant levels.

  1. The new National Air Quality Index measures – PM2.5, PM10, nitrogen dioxide, ozone and carbon monoxide.
  2. Officials warned that the quality of new monitoring stations was mixed across the country – This augurs bad for such a comprehensive move.
  3. 12 Indian cities were among the WHO list of the world’s worst 20 for air quality.
  4. Also, India does not yet have a mechanism in place to bring down peak pollution levels.