City report · West Bengal, India
Rajpur Sonarpur Air quality today
Air quality in Rajpur Sonarpur currently reads AQI 120 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
AQI 120
Air quality right now
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 43.3
- tree cover
- 67.9%
- trees in this area
- 213K
- more trees needed
- 0
Measured across a 2 km radius around Milan Pally, Rajpur Sonarpur, 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.
Rajpur Sonarpur · AQI 120 (Unhealthy for sensitive groups)
Rajpur Sonarpur's tree count comes to 213,314 trees across 12.57 km², already at or above the 35% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Rajpur Sonarpur today: AQI 120, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 11, 22:45 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Rabindra Sarobar, Kolkata - WBPCB, 11.6 km away · median of 10 stations
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
43.3
PM10
78.2
NO₂
73.7
O₃
13.0
SO₂
15.9
CO
0.9
Data: OpenAQ · CPCB, Central Pollution Control Board, Government of India (GODL-India)
- Outdoor exercise
- Children, older adults and people with asthma or heart disease should cut down long or hard exercise
- Windows
- Close them to keep the outside air out
- Mask
- Sensitive groups: an N95 outdoors
- Air purifier
- Run one, especially in bedrooms
Over the last 7 days, the CAMS air-quality model put Rajpur Sonarpur's daily AQI at 180 on average, from 150 on Nov 10 to an hourly peak of 246 on Nov 8.
This is the US EPA AQI. How it differs from India's AQI (CPCB) · The full guide
Where Rajpur Sonarpur stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Rajpur Sonarpur: Healthy tree cover
67.9% tree cover against a 35% healthy-neighborhood target, across 12.57 km².
Trees in this area
213,314
Target trees
213,314
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Rajpur Sonarpur lost?
Almost no forest has been lost around Rajpur Sonarpur since 2001: less than 1 hectare of the 123 hectares there in 2000.
2017: satellite photo from February 2017 of a 5 × 5 km area in the city center.
Forest gained and lost, 2000–2020
- Forest in 2000
- 10,500 ha
- Forest in 2020
- 11,000 ha
- Overall change
- +493 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Rajpur Sonarpur grew from about 10,500 hectares to 11,000 hectares, a net gain of about 493 hectares (+4.7%). New forest grew on about 518 hectares, while 25 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 Rajpur Sonarpur
What is the air quality (AQI) in Rajpur Sonarpur right now?
The latest reading for Rajpur Sonarpur shows an AQI of 120 (Unhealthy for sensitive groups), measured Nov 11, 22:45 local time by 10 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Rabindra Sarobar, Kolkata - WBPCB, 11.6 km away). The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Rajpur Sonarpur today?
At AQI 120 (Unhealthy for sensitive groups): children, older adults and people with asthma or heart disease should cut down long or hard exercise. Windows: close them to keep the outside air out. Masks: sensitive groups: an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Rajpur Sonarpur been like this week?
Over the last 7 days, the CAMS air-quality model put Rajpur Sonarpur's daily AQI at 180 on average, from 150 on Nov 10 to an hourly peak of 246 on Nov 8. On 7 of those days the average was above 100, unhealthy for sensitive groups.
Is Rajpur Sonarpur'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 Rajpur Sonarpur lost since 2001?
Almost no forest has been lost around Rajpur Sonarpur since 2001: less than 1 hectare of the 123 hectares there in 2000. Comparing satellite maps from 2000 and 2020, the forest around Rajpur Sonarpur grew from about 10,500 hectares to 11,000 hectares, a net gain of about 493 hectares (+4.7%). New forest grew on about 518 hectares, while 25 hectares were lost.
What is the tree count in Rajpur Sonarpur?
Rajpur Sonarpur has an estimated 213,314 trees across the 12.57 km² measured — 67.9% tree cover, already past the 35% tree-cover target set for this area.
How many more trees does Rajpur Sonarpur need?
Rajpur Sonarpur has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Rajpur Sonarpur's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Milan Pally, 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 Milan Pally; the tree count is an estimate derived from that cover.
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