AQI World

Delhi Air Quality Index

Delhi, India · Real-time AQI data

Unhealthy

Some members of the general public may experience health effects.

Pollutant Breakdown

PM2.5

165µg/m³

PM10

110µg/m³

O₃

1.8ppm

NO₂

44.5ppb

SO₂

10.9ppb

CO

6.2ppm

Station: Major Dhyan Chand National Stadium, Delhi, Delhi, India · Mar 18, 04:00 AM · Updates every 30 min

Health Recommendations

Unhealthy

Some members of the general public may experience health effects.

General Public: Reduce prolonged or heavy outdoor exertion. Take more breaks.
Children: Avoid prolonged or heavy outdoor exertion.
Elderly: Avoid all outdoor exertion.
Heart Conditions: Avoid all outdoor exertion.
Lung Conditions: Avoid all outdoor exertion.

How does Delhi compare to other cities?

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AQI Scale Reference

0–50
Good
51–100
Moderate
101–150
Unhealthy for Sensitive Groups
151–200
Unhealthy
201–300
Very Unhealthy
301–500
Hazardous

Other Cities in India

113Mumbai139Bangalore60Kolkata24Chennai64Hyderabad

About Air Quality in Delhi

The Air Quality Index (AQI) in Delhi is measured using monitoring stations that track six key pollutants: PM2.5, PM10, ground-level ozone, nitrogen dioxide, sulfur dioxide, and carbon monoxide. The AQI is calculated using US EPA standards and ranges from 0 (excellent) to 500 (hazardous).

PM2.5 is typically the dominant pollutant in Delhi during high-pollution periods. Fine particulate matter from traffic, industry, and seasonal factors can push AQI above 150, which is considered unhealthy for all groups.

Check the health effects guide to understand what today's AQI means for your activity level, or see the global AQI rankings to compare Delhi with other cities worldwide.