City report · Chittagong, Bangladesh
Chattogram Air quality today
Air quality in Chattogram currently reads AQI 48 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 48
Good
- PM2.5, fine particles (µg/m³)
- 8.4
- tree cover
- 26.5%
- trees in this area
- 76.3K
- more trees needed
- 10.1K
Measured across a 2 km radius around Nandan Kanan, Chattogram, Bangladesh (12.57 km²), from a satellite image of Oct 12, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Chattogram · AQI 48 (Good)
Chattogram's tree count comes to 76,259 trees across 11.51 km² of land, 3 points below the 30% tree-cover level considered healthy for this area, so roughly 10,072 more trees would close the gap.
Air quality detail
Air quality in Chattogram today: AQI 48, Good
Main pollutant: PM2.5 · Observed Nov 10, 19:00 local time via Open-Meteo / CAMS, corrected with 9 ground-station cities within 245 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 9 station cities within 245 km, e.g. Sonargaon and Narayanganj
Health signal
Air quality is satisfactory for everyone.
PM2.5
8.4
PM10
10.8
NO₂
19.3
O₃
65.0
SO₂
6.0
CO
487.0
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
Over the last 7 days, the CAMS air-quality model put Chattogram's daily AQI at 96 on average, from 57 on Nov 10 to an hourly peak of 156 on Nov 8.
Where Chattogram stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Chattogram: Below target
26.5% tree cover against a 30% healthy-neighborhood target, across 11.51 km² of land.
Trees in this area
76,259
Target trees
86,331
More trees needed
10,072
CO₂ if planted / yr
221.6 t
Deforestation · 2001–2025
How much forest has Chattogram lost?
Since 2001, the area within 10 km of Chattogram has lost about 44 hectares of forest (about 62 football pitches): 1.6% of the forest it had in 2000. Most of it (89%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from February 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 44 haabout 62 football pitches
- Share of its forest
- 1.6%of what there was in 2000
- Cleared for good
- 39 hadeforestation: turned into farms, mines or towns
The worst year was 2009, when about 11 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 | 1 ha | under 1 ha | 2 ha |
| 2003 | 5 ha | under 1 ha | 5 ha |
| 2004 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | 1 ha | under 1 ha | 1 ha |
| 2006 | 2 ha | under 1 ha | 2 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | 11 ha | under 1 ha | 11 ha |
| 2010 | 4 ha | under 1 ha | 4 ha |
| 2011 | 2 ha | under 1 ha | 2 ha |
| 2012 | under 1 ha | under 1 ha | 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | 2 ha | under 1 ha | 2 ha |
| 2017 | 1 ha | under 1 ha | 1 ha |
| 2018 | 1 ha | under 1 ha | 1 ha |
| 2019 | 2 ha | under 1 ha | 2 ha |
| 2020 | 2 ha | under 1 ha | 2 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | under 1 ha | under 1 ha | 1 ha |
| 2025 | 1 ha | under 1 ha | 2 ha |
What is causing deforestation around Chattogram?
- Towns and roadscleared for good70% · 31 ha
- Farms, pasture and plantationscleared for good20% · 9 ha
- Unknown causescause unknown11% · 5 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
- 7,130 ha
- Forest in 2020
- 8,290 ha
- Overall change
- +1,160 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Chattogram grew from about 7,130 hectares to 8,290 hectares, a net gain of about 1,160 hectares (+16%). New forest grew on about 1,410 hectares, while 246 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 Chattogram
Same 2 km radius, same index — so they compare directly.
- Hāthazāri18.6 km
Bangladesh
- Tree cover
- 62%
- Air quality
- 47
- Maijdi95.4 km
Bangladesh
- Tree cover
- 72%
- Air quality
- 63
- Cox’s Bāzār101.6 km
Bangladesh
- Tree cover
- 58%
- Air quality
- 12
- Comilla141.4 km
Bangladesh
- Tree cover
- 41%
- Air quality
- 64
- Barishal155.6 km
Bangladesh
- Tree cover
- 51%
- Air quality
- 63
- Chāndpur156.0 km
Bangladesh
- Tree cover
- 54%
- Air quality
- 74
Also compared:Chattogram vs DhakaChattogram vs GazipurChattogram vs KhulnaChattogram vs Rangpur
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Frequently asked
Questions about Chattogram
What is the air quality (AQI) in Chattogram right now?
The latest reading for Chattogram shows an AQI of 48 (Good), observed Nov 10, 19:00 local time via Open-Meteo / CAMS, corrected with 9 ground-station cities within 245 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Chattogram today?
At AQI 48 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Chattogram been like this week?
Over the last 7 days, the CAMS air-quality model put Chattogram's daily AQI at 96 on average, from 57 on Nov 10 to an hourly peak of 156 on Nov 8. On 3 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Chattogram lost since 2001?
Since 2001, the area within 10 km of Chattogram has lost about 44 hectares of forest (about 62 football pitches): 1.6% of the forest it had in 2000. Most of it (89%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Chattogram grew from about 7,130 hectares to 8,290 hectares, a net gain of about 1,160 hectares (+16%). New forest grew on about 1,410 hectares, while 246 hectares were lost.
What is the tree count in Chattogram?
Chattogram has an estimated 76,259 trees across the 11.51 km² of land measured — 26.5% tree cover, 3 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Chattogram need?
Chattogram needs roughly 10,072 more trees to close a 3-point shortfall against its 30% tree-cover target — about 221.6 t of extra CO₂ absorbed per year once grown.
How are Chattogram'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 Nandan Kanan; the tree count is an estimate derived from that cover.
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