City report · West Bengal, India
Āsansol Air quality today
Air quality in Āsansol currently reads AQI 158 (Unhealthy): Everyone should limit long outdoor exertion; sensitive groups more so.
AQI 158
Air quality right now
Unhealthy
- PM2.5, fine particles (µg/m³)
- 65.0
- tree cover
- 41.9%
- trees in this area
- 131K
- more trees needed
- 0
Measured across a 2 km radius around Munshi Bazar, Asansol, West Bengal, India (12.57 km²), from a satellite image of Oct 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Āsansol · AQI 158 (Unhealthy)
Āsansol's tree count comes to 131,369 trees across 12.54 km² of land, already at or above the 40% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Āsansol today: AQI 158, Unhealthy
Main pollutant: PM2.5 · Observed Nov 11, 20:45 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Asansol Court Area, Asansol - WBPCB, 3.8 km away · median of 2 stations
Health signal
Everyone should limit long outdoor exertion; sensitive groups more so.
PM2.5
65.0
PM10
100.5
NO₂
104.7
O₃
8.1
SO₂
23.6
CO
1.8
Data: OpenAQ · CPCB, Central Pollution Control Board, Government of India (GODL-India)
- Outdoor exercise
- Everyone should cut down long or hard exercise; sensitive groups should avoid it
- Windows
- Keep them closed
- Mask
- Wear an N95 outdoors
- Air purifier
- Run one
Over the last 7 days, the CAMS air-quality model put Āsansol's daily AQI at 160 on average, from 119 on Nov 9 to an hourly peak of 191 on Nov 10.
This is the US EPA AQI. How it differs from India's AQI (CPCB) · The full guide
Where Āsansol stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Āsansol: Healthy tree cover
41.9% tree cover against a 40% healthy-neighborhood target, across 12.54 km² of land.
Trees in this area
131,369
Target trees
131,369
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Āsansol lost?
There was almost no forest around Āsansol in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
2017: satellite photo from January 2017 of a 5 × 5 km area in the city center.
Forest gained and lost, 2000–2020
- Forest in 2000
- 1,220 ha
- Forest in 2020
- 1,280 ha
- Overall change
- +54 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Āsansol grew from about 1,220 hectares to 1,280 hectares, a net gain of about 54 hectares (+4.4%). New forest grew on about 108 hectares, while 54 hectares were lost.
These 2000 and 2020 maps, from the University of Maryland, count any land with trees taller than 5 m as forest, including plantations and orchards. Forest that was cut or burned and had grown back by 2020 counts in both years, so the loss here is smaller than the yearly figures.
These figures cover everything within 10 km of the city center, a wider area than the report above, because forest is usually lost at a city's edges.
Source: Hansen/UMD/Google/USGS/NASA, Global Forest Change (GFC-2025-v1.13); causes: WRI/Google DeepMind drivers of forest loss; both CC BY 4.0, summed by Airleaf for each area. Forest gained and lost 2000–2020: Potapov et al. 2022, UMD GLAD Global Land Cover and Land Use Change, CC BY 4.0. Images: contains modified Copernicus Sentinel data. How it's measured
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Frequently asked
Questions about Āsansol
What is the air quality (AQI) in Āsansol right now?
The latest reading for Āsansol shows an AQI of 158 (Unhealthy), measured Nov 11, 20:45 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Asansol Court Area, Asansol - WBPCB, 3.8 km away). The main pollutant is PM2.5. Everyone should limit long outdoor exertion; sensitive groups more so.
Is it safe to exercise outside in Āsansol today?
At AQI 158 (Unhealthy): everyone should cut down long or hard exercise; sensitive groups should avoid it. Windows: keep them closed. Masks: wear an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Āsansol been like this week?
Over the last 7 days, the CAMS air-quality model put Āsansol's daily AQI at 160 on average, from 119 on Nov 9 to an hourly peak of 191 on Nov 10. On 7 of those days the average was above 100, unhealthy for sensitive groups.
Is Āsansol'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.
How much forest has the area around Āsansol lost since 2001?
There was almost no forest around Āsansol in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here. Comparing satellite maps from 2000 and 2020, the forest around Āsansol grew from about 1,220 hectares to 1,280 hectares, a net gain of about 54 hectares (+4.4%). New forest grew on about 108 hectares, while 54 hectares were lost.
What is the tree count in Āsansol?
Āsansol has an estimated 131,369 trees across the 12.54 km² of land measured — 41.9% tree cover, already past the 40% tree-cover target set for this area.
How many more trees does Āsansol need?
Āsansol has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Āsansol's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Munshi Bazar, 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 2 km radius around Munshi Bazar; the tree count is an estimate derived from that cover.
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