Delhi Air Quality
Capital: New Delhi · Population: 32M · 40 monitoring stations
226
Poor
2024 Annual Avg
226
Annual AQI
Rank #1 in India
96 μg/m³
PM2.5
19× WHO limit
450
Winter Peak
Oct–Feb average
110
Summer Low
Jul–Sep average
Health Advisory — Poor
Poor air quality. Sensitive groups must avoid outdoor activity. Others should reduce prolonged exertion.
Major Cities in Delhi
Live AQI updated every 30 minutes from WAQI. 2024 Avg from CPCB annual data.
Air Quality in Delhi
Delhi consistently ranks among the world's most polluted capitals. Its bowl-shaped geography traps pollutants. Winter smog episodes from Punjab and Haryana stubble burning cause emergency-level AQI spikes.
Main Pollution Sources
Seasonal AQI Patterns in Delhi
Worst season. Temperature inversions, crop burning, and low wind speeds trap pollutants. AQI often exceeds 300 in northern states.
Dust storms and heat raise AQI. Less fog than winter. Industrial activity at peak.
Best air quality of the year. Rain washes out PM2.5 and PM10. AQI typically falls to lowest levels.
Rapidly deteriorating. Crop stubble burning begins in northern states. AQI transitions from good to dangerous.