City report · Chittagong, Bangladesh
Hāthazāri Air quality today
Air quality in Hāthazāri currently reads AQI 44 (Good): Air quality is satisfactory for everyone.
AQI 44
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 7.6
- tree cover
- 61.6%
- trees in this area
- 194K
- more trees needed
- 0
Measured across a 2 km radius around Kamal Para, Hathazari, Bangladesh (12.57 km²), from a satellite image of Nov 6, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Hāthazāri · AQI 44 (Good)
Hāthazāri's tree count comes to 193,522 trees across 12.57 km², already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Hāthazāri today: AQI 44, Good
Main pollutant: PM2.5 · Observed Nov 11, 00:00 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 205 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 5 station cities within 205 km, e.g. Sonargaon and Narayanganj
Health signal
Air quality is satisfactory for everyone.
PM2.5
7.6
PM10
12.3
NO₂
21.0
O₃
18.0
SO₂
3.1
CO
422.0
- 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 Hāthazāri's daily AQI at 89 on average, from 57 on Nov 10 to an hourly peak of 156 on Nov 8.
Where Hāthazāri stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Hāthazāri: Healthy tree cover
61.6% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
193,522
Target trees
193,522
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Hāthazāri lost?
Since 2001, the area within 10 km of Hāthazāri has lost about 527 hectares of forest (about 740 football pitches): 7.5% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 120 hectares (23%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from February 2017 of a 5 × 5 km area about 6 km west of the city center.
- Forest lost since 2001
- 527 haabout 740 football pitches
- Share of its forest
- 7.5%of what there was in 2000
- Cleared for good
- 120 hadeforestation: turned into farms, mines or towns
The worst year was 2023, when about 71 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 | 3 ha | 2 ha | 5 ha |
| 2002 | 2 ha | 1 ha | 3 ha |
| 2003 | under 1 ha | under 1 ha | 1 ha |
| 2004 | 2 ha | 1 ha | 3 ha |
| 2005 | under 1 ha | under 1 ha | under 1 ha |
| 2006 | 6 ha | 4 ha | 10 ha |
| 2007 | 1 ha | 1 ha | 2 ha |
| 2008 | 2 ha | 2 ha | 4 ha |
| 2009 | 4 ha | 2 ha | 6 ha |
| 2010 | 4 ha | 1 ha | 5 ha |
| 2011 | 10 ha | 7 ha | 17 ha |
| 2012 | 3 ha | 5 ha | 8 ha |
| 2013 | under 1 ha | 3 ha | 4 ha |
| 2014 | under 1 ha | 5 ha | 5 ha |
| 2015 | 2 ha | 43 ha | 45 ha |
| 2016 | 2 ha | 64 ha | 65 ha |
| 2017 | 5 ha | 49 ha | 54 ha |
| 2018 | under 1 ha | 26 ha | 27 ha |
| 2019 | 4 ha | 25 ha | 29 ha |
| 2020 | 8 ha | 33 ha | 41 ha |
| 2021 | 21 ha | 37 ha | 58 ha |
| 2022 | 6 ha | 8 ha | 14 ha |
| 2023 | 20 ha | 52 ha | 71 ha |
| 2024 | 10 ha | 13 ha | 23 ha |
| 2025 | 5 ha | 23 ha | 27 ha |
What is causing deforestation around Hāthazāri?
- Loggingcan grow back53% · 281 ha
- Shifting farmingcan grow back22% · 118 ha
- Farms, pasture and plantationscleared for good21% · 110 ha
Also: towns and roads, storms, floods and other natural causes, unknown causes.
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
- 11,600 ha
- Forest in 2020
- 13,900 ha
- Overall change
- +2,240 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Hāthazāri grew from about 11,600 hectares to 13,900 hectares, a net gain of about 2,240 hectares (+19%). New forest grew on about 2,500 hectares, while 257 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 Hāthazāri
Same 2 km radius, same index — so they compare directly.
- Chattogram18.6 km
Bangladesh
- Tree cover
- 27%
- Air quality
- 41
- Maijdi83.5 km
Bangladesh
- Tree cover
- 72%
- Air quality
- 63
- Cox’s Bāzār120.2 km
Bangladesh
- Tree cover
- 58%
- Air quality
- 12
- Comilla124.3 km
Bangladesh
- Tree cover
- 41%
- Air quality
- 64
- Chāndpur143.3 km
Bangladesh
- Tree cover
- 54%
- Air quality
- 74
- Barishal149.8 km
Bangladesh
- Tree cover
- 51%
- Air quality
- 52
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Frequently asked
Questions about Hāthazāri
What is the air quality (AQI) in Hāthazāri right now?
The latest reading for Hāthazāri shows an AQI of 44 (Good), observed Nov 11, 00:00 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 205 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Hāthazāri today?
At AQI 44 (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 Hāthazāri been like this week?
Over the last 7 days, the CAMS air-quality model put Hāthazāri's daily AQI at 89 on average, from 57 on Nov 10 to an hourly peak of 156 on Nov 8. On 2 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Hāthazāri lost since 2001?
Since 2001, the area within 10 km of Hāthazāri has lost about 527 hectares of forest (about 740 football pitches): 7.5% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 120 hectares (23%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Hāthazāri grew from about 11,600 hectares to 13,900 hectares, a net gain of about 2,240 hectares (+19%). New forest grew on about 2,500 hectares, while 257 hectares were lost.
What is the tree count in Hāthazāri?
Hāthazāri has an estimated 193,522 trees across the 12.57 km² measured — 61.6% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Hāthazāri need?
Hāthazāri has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Hāthazāri'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 Kamal Para; the tree count is an estimate derived from that cover.
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