City report · West Bengal, India
Haldia Air quality today
Air quality in Haldia currently reads AQI 64 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 64
Moderate
- PM2.5, fine particles (µg/m³)
- 15.9
- tree cover
- 38.8%
- trees in this area
- 120K
- more trees needed
- 0
Measured across a 2 km radius around Haldia, 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.
Haldia · AQI 64 (Moderate)
Haldia's tree count comes to 119,822 trees across 12.36 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Haldia today: AQI 64, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 20:30 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Haldia - WBSPCB, 0 m away
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
15.9
PM10
49.0
NO₂
49.8
O₃
19.5
SO₂
26.6
CO
1.1
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 Haldia's daily AQI at 165 on average, from 124 on Nov 10 to an hourly peak of 213 on Nov 6.
This is the US EPA AQI. How it differs from India's AQI (CPCB) · The full guide
Where Haldia stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Haldia: Healthy tree cover
38.8% tree cover against a 30% healthy-neighborhood target, across 12.36 km² of land.
Trees in this area
119,822
Target trees
119,822
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Haldia lost?
There was almost no forest around Haldia 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 February 2017 of a 5 × 5 km area in the city center.
Forest gained and lost, 2000–2020
- Forest in 2000
- 4,110 ha
- Forest in 2020
- 4,400 ha
- Overall change
- +291 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Haldia grew from about 4,110 hectares to 4,400 hectares, a net gain of about 291 hectares (+7.1%). New forest grew on about 301 hectares, while 10 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
In the same region
Measured cities near Haldia
Same 2 km radius, same index — so they compare directly.
- Uluberiya46.2 km
India
- Tree cover
- 77%
- Air quality
- 117
- Maheshtala52.0 km
India
- Tree cover
- 72%
- Air quality
- 94
- Rajpur Sonarpur53.5 km
India
- Tree cover
- 68%
- Air quality
- 88
- Kolkata61.6 km
India
- Tree cover
- 29%
- Air quality
- 88
- Dam Dam71.4 km
India
- Tree cover
- 38%
- Air quality
- 111
- Pānihāti75.2 km
India
- Tree cover
- 40%
- Air quality
- 108
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Frequently asked
Questions about Haldia
What is the air quality (AQI) in Haldia right now?
The latest reading for Haldia shows an AQI of 64 (Moderate), measured Nov 11, 20:30 local time by the Haldia - WBSPCB ground monitoring station, 0 m away, via OpenAQ. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Haldia today?
At AQI 64 (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 Haldia been like this week?
Over the last 7 days, the CAMS air-quality model put Haldia's daily AQI at 165 on average, from 124 on Nov 10 to an hourly peak of 213 on Nov 6. On 7 of those days the average was above 100, unhealthy for sensitive groups.
Is Haldia'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 Haldia lost since 2001?
There was almost no forest around Haldia 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 Haldia grew from about 4,110 hectares to 4,400 hectares, a net gain of about 291 hectares (+7.1%). New forest grew on about 301 hectares, while 10 hectares were lost.
What is the tree count in Haldia?
Haldia has an estimated 119,822 trees across the 12.36 km² of land measured — 38.8% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Haldia need?
Haldia has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Haldia's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Haldia, 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 Haldia; the tree count is an estimate derived from that cover.
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