Place report · India
Old Delhi, Delhi Air quality today
Air quality in Old Delhi, Delhi currently reads AQI 249 (Very unhealthy): Health alert — everyone should avoid long outdoor exertion.
Air quality right now
AQI 249
Very unhealthy
- PM2.5, fine particles (µg/m³)
- 173.7
- tree cover
- 7.0%
- trees in this area
- 12.4K
- more trees needed
- 67.2K
Measured across a 1.5 km radius around Old Delhi, Delhi, India (7.07 km²), from a satellite image of Nov 9, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Old Delhi, Delhi · AQI 249 (Very unhealthy)
Old Delhi, Delhi's tree count comes to 12,370 trees across 7.07 km², 38 points below the 45% tree-cover level considered healthy for this area, so roughly 67,152 more trees would close the gap.
Air quality detail
Air quality in Old Delhi, Delhi today: AQI 249, Very unhealthy
Main pollutant: PM2.5 · Observed Nov 11, 09:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Chandni Chowk, Delhi - IITM, 700 m away · median of 20 stations
Health signal
Health alert — everyone should avoid long outdoor exertion.
PM2.5
173.7
PM10
249.0
NO₂
58.3
O₃
6.8
SO₂
33.6
CO
1.3
Data: OpenAQ · AirNow, CPCB, Central Pollution Control Board, Government of India (GODL-India)
- Outdoor exercise
- Everyone should avoid long or hard exercise outdoors; sensitive groups, all outdoor exertion
- Windows
- Keep them closed
- Mask
- Wear an N95 if you go out
- Air purifier
- Run one on high
Over the last 7 days, the CAMS air-quality model put Old Delhi, Delhi's daily AQI at 201 on average, from 173 on Nov 7 to an hourly peak of 267 on Nov 10.
This is the US EPA AQI. How it differs from India's AQI (CPCB) · The full guide
Where Old Delhi, Delhi stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Old Delhi, Delhi: Critically low
7.0% tree cover against a 45% healthy-neighborhood target, across 7.07 km².
Trees in this area
12,370
Target trees
79,522
More trees needed
67,152
CO₂ if planted / yr
1,477 t
Frequently asked
Questions about Old Delhi, Delhi
What is the air quality (AQI) in Old Delhi, Delhi right now?
The latest reading for Old Delhi, Delhi shows an AQI of 249 (Very unhealthy), measured Nov 11, 09:00 local time by 20 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Chandni Chowk, Delhi - IITM, 700 m away). The main pollutant is PM2.5. Health alert — everyone should avoid long outdoor exertion.
Is it safe to exercise outside in Old Delhi, Delhi today?
At AQI 249 (Very unhealthy): everyone should avoid long or hard exercise outdoors; sensitive groups, all outdoor exertion. Windows: keep them closed. Masks: wear an N95 if you go out. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Old Delhi, Delhi been like this week?
Over the last 7 days, the CAMS air-quality model put Old Delhi, Delhi's daily AQI at 201 on average, from 173 on Nov 7 to an hourly peak of 267 on Nov 10. On 7 of those days the average was above 100, unhealthy for sensitive groups.
Is Old Delhi, Delhi's AQI the same as India's AQI (CPCB)?
No. Airleaf shows the US EPA Air Quality Index (AQI), the scale used by IQAir and most air-quality apps. India's Central Pollution Control Board (CPCB) publishes the National Air Quality Index on its own scale: 0–50 good, 51–100 satisfactory, 101–200 moderate, 201–300 poor, 301–400 very poor and 401–500 severe. The two scales don't line up. At moderate fine-particle levels the US scale reads higher: 55 µg/m³ of PM2.5 is 149 on the US AQI but about 92, "satisfactory", on India's. In heavy smog India's reads higher: 100 µg/m³ is 182 on the US AQI and about 232, "poor", on India's. CPCB also averages particles over 24 hours, so its figure moves more slowly than an hourly reading.
What is the tree count in Old Delhi, Delhi?
Old Delhi, Delhi has an estimated 12,370 trees across the 7.07 km² measured — 7.0% tree cover, 38 percentage points short of the 45% tree-cover target set for this area.
How many more trees does Old Delhi, Delhi need?
Old Delhi, Delhi needs roughly 67,152 more trees to close a 38-point shortfall against its 45% tree-cover target — about 1,477 t of extra CO₂ absorbed per year once grown.
How are Old Delhi, Delhi's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Old Delhi, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 1.5 km radius around Old Delhi; the tree count is an estimate derived from that cover.
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