+427%Deteriorating
3 October 2026Outside the usual rangeMeghalaya
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Health system
Air quality, water and sanitation.
Worsening most in Meghalaya, Tamil Nadu, Mizoram
103average air quality indexThe unweighted mean of the National Air Quality Index (AQI) of every city in the geography that appears in CPCB's daily AQI bulletin, for the 24 hours ending 16:00 IST. Lower is better: 0–50 Good, 51–100 Satisfactory, 101–200 Moderate, 201–300 Poor, 301–400 Very Poor, 401–500 Severe.
The percentage of cities in the geography in CPCB's daily AQI bulletin whose National AQI was 201 or more (Poor, Very Poor or Severe) for the 24 hours ending 16:00 IST.
The highest National AQI among the cities in the geography that appear in CPCB's daily AQI bulletin, for the 24 hours ending 16:00 IST.
India Health Observatory. Environment in India: indicators and change signals. https://indiahealthobservatory.com/topics/environment
The number of cities in the geography that appear with an AQI in CPCB's daily AQI bulletin.