City report · West Bengal, India
Maheshtala Air quality today
Air quality in Maheshtala currently reads AQI 94 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 94
Moderate
- PM2.5, fine particles (µg/m³)
- 32.2
- tree cover
- 72.1%
- trees in this area
- 225K
- more trees needed
- 0
Measured across a 2 km radius around Mahadebnagar, Jagannathgarh, Maheshtala, West Bengal 700141, India (12.57 km²), from a satellite image of Oct 20, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Maheshtala · AQI 94 (Moderate)
Maheshtala's tree count comes to 224,697 trees across 12.47 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Maheshtala today: AQI 94, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 20:45 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Victoria, Kolkata - WBPCB, 9.8 km away · median of 2 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
32.2
PM10
66.1
NO₂
61.0
O₃
19.3
SO₂
18.4
CO
1.5
Data: OpenAQ · CPCB, Central Pollution Control Board, Government of India (GODL-India)
- Outdoor exercise
- Fine for most people; unusually sensitive people should take long or hard exercise easier
- Windows
- Fine to open; close them if you are sensitive to pollution
- Mask
- Not needed for most people
- Air purifier
- Worth running if you are sensitive
Over the last 7 days, the CAMS air-quality model put Maheshtala's daily AQI at 177 on average, from 144 on Nov 11 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 Maheshtala stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Maheshtala: Healthy tree cover
72.1% tree cover against a 30% healthy-neighborhood target, across 12.47 km² of land.
Trees in this area
224,697
Target trees
224,697
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Maheshtala lost?
Almost no forest has been lost around Maheshtala since 2001: less than 1 hectare of the 261 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
- 11,500 ha
- Forest in 2020
- 11,700 ha
- Overall change
- +245 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Maheshtala grew from about 11,500 hectares to 11,700 hectares, a net gain of about 245 hectares (+2.1%). New forest grew on about 302 hectares, while 57 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 Maheshtala
What is the air quality (AQI) in Maheshtala right now?
The latest reading for Maheshtala shows an AQI of 94 (Moderate), measured Nov 11, 20:45 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Victoria, Kolkata - WBPCB, 9.8 km away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Maheshtala today?
At AQI 94 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Maheshtala been like this week?
Over the last 7 days, the CAMS air-quality model put Maheshtala's daily AQI at 177 on average, from 144 on Nov 11 to an hourly peak of 246 on Nov 8. On 7 of those days the average was above 100, unhealthy for sensitive groups.
Is Maheshtala'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 Maheshtala lost since 2001?
Almost no forest has been lost around Maheshtala since 2001: less than 1 hectare of the 261 hectares there in 2000. Comparing satellite maps from 2000 and 2020, the forest around Maheshtala grew from about 11,500 hectares to 11,700 hectares, a net gain of about 245 hectares (+2.1%). New forest grew on about 302 hectares, while 57 hectares were lost.
What is the tree count in Maheshtala?
Maheshtala has an estimated 224,697 trees across the 12.47 km² of land measured — 72.1% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Maheshtala need?
Maheshtala has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Maheshtala's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Mahadebnagar, 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 Mahadebnagar; the tree count is an estimate derived from that cover.
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