City report · West Bengal, India
Siliguri Air quality today
Air quality in Siliguri currently reads AQI 62 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 62
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 16.6
- tree cover
- 39.3%
- trees in this area
- 123K
- more trees needed
- 0
Measured across a 2 km radius around Old Matigara, Siliguri, West Bengal 734001, India (12.57 km²), from a satellite image of Oct 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Siliguri · AQI 62 (Moderate)
Siliguri's tree count comes to 123,218 trees across 12.54 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Siliguri today: AQI 62, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 06:30 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 165 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 5 station cities within 165 km, e.g. Jalpaiguri Division and Phuentsholing
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
16.6
PM10
31.0
NO₂
23.4
O₃
34.0
SO₂
3.5
CO
542.0
- 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 Siliguri's daily AQI at 103 on average, from 67 on Nov 10 to an hourly peak of 164 on Nov 5.
This is the US EPA AQI. How it differs from India's AQI (CPCB) · The full guide
Where Siliguri stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Siliguri: Healthy tree cover
39.3% tree cover against a 30% healthy-neighborhood target, across 12.54 km² of land.
Trees in this area
123,218
Target trees
123,218
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Siliguri lost?
Since 2001, the area within 10 km of Siliguri has lost about 25 hectares of forest (about 34 football pitches): under 1% of the forest it had in 2000. Most of it (86%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from January 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 25 haabout 34 football pitches
- Share of its forest
- under 1%of what there was in 2000
- Cleared for good
- 21 hadeforestation: turned into farms, mines or towns
The worst year was 2023, when about 5 hectares of forest were lost.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | under 1 ha | under 1 ha | under 1 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | under 1 ha | under 1 ha | under 1 ha |
| 2006 | under 1 ha | under 1 ha | under 1 ha |
| 2007 | under 1 ha | 1 ha | 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | 4 ha | under 1 ha | 4 ha |
| 2013 | 4 ha | under 1 ha | 4 ha |
| 2014 | 3 ha | under 1 ha | 3 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | 5 ha | under 1 ha | 5 ha |
| 2024 | 2 ha | under 1 ha | 2 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Siliguri?
- Farms, pasture and plantationscleared for good73% · 18 ha
- Towns and roadscleared for good13% · 3 ha
- Unknown causescause unknown15% · 4 ha
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
Forest gained and lost, 2000–2020
- Forest in 2000
- 12,200 ha
- Forest in 2020
- 13,000 ha
- Overall change
- +768 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Siliguri grew from about 12,200 hectares to 13,000 hectares, a net gain of about 768 hectares (+6.3%). New forest grew on about 930 hectares, while 162 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 Siliguri
Same 2 km radius, same index — so they compare directly.
- Jalpāiguri37.2 km
India
- Tree cover
- 40%
- Air quality
- 105
- Dārjiling39.4 km
India
- Tree cover
- 88%
- Air quality
- 52
- Gangtok70.8 km
India
- Tree cover
- 83%
- Air quality
- 39
- Kishanganj82.4 km
India
- Tree cover
- 44%
- Air quality
- 75
- Jaigaon95.3 km
India
- Tree cover
- 34%
- Air quality
- 78
- Phuntsholing96.6 km
Bhutan
- Tree cover
- 61%
- Air quality
- 78
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Frequently asked
Questions about Siliguri
What is the air quality (AQI) in Siliguri right now?
The latest reading for Siliguri shows an AQI of 62 (Moderate), observed Nov 11, 06:30 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 165 km, US EPA index. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Siliguri today?
At AQI 62 (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 Siliguri been like this week?
Over the last 7 days, the CAMS air-quality model put Siliguri's daily AQI at 103 on average, from 67 on Nov 10 to an hourly peak of 164 on Nov 5. On 3 of those days the average was above 100, unhealthy for sensitive groups.
Is Siliguri'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 Siliguri lost since 2001?
Since 2001, the area within 10 km of Siliguri has lost about 25 hectares of forest (about 34 football pitches): under 1% of the forest it had in 2000. Most of it (86%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Comparing satellite maps from 2000 and 2020, the forest around Siliguri grew from about 12,200 hectares to 13,000 hectares, a net gain of about 768 hectares (+6.3%). New forest grew on about 930 hectares, while 162 hectares were lost.
What is the tree count in Siliguri?
Siliguri has an estimated 123,218 trees across the 12.54 km² of land measured — 39.3% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Siliguri need?
Siliguri has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Siliguri's air quality and tree cover measured?
Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. 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 Old Matigara; the tree count is an estimate derived from that cover.
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