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City report · Brunei

Bandar Seri Begawan Air quality today

Air quality in Bandar Seri Begawan currently reads AQI 10 (Good): Air quality is satisfactory for everyone.

Air quality right now

AQI 10

Good

Main pollutant: PM10
PM2.5, fine particles (µg/m³)
0.5
tree cover
56.3%
trees in this area
156K
more trees needed
0

Measured across a 2 km radius around City Centre, Bandar Seri Begawan, Brunei (12.57 km²), from a satellite image of Sep 4, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Bandar Seri Begawan · AQI 10 (Good)

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Sep 4, 2026

Bandar Seri Begawan's tree count comes to 156,355 trees across 11.11 km² of land, already at or above the 30% tree-cover level considered healthy for this area.

Air quality detail

Air quality in Bandar Seri Begawan today: AQI 10, Good

Main pollutant: PM10 · Observed Nov 11, 23:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.

Ground station · Limbang, Sarawak, Malaysia, 16.7 km away

Health signal

Air quality is satisfactory for everyone.

PM2.5

0.5

PM10

11.9

NO₂

—

O₃

—

SO₂

—

CO

—

Data: World Air Quality Index Project, Malaysia Department of Environment (DOE); Air Polluant Index Management System

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 Bandar Seri Begawan's daily AQI at 42 on average, from 28 on Nov 8 to an hourly peak of 66 on Nov 5.

Last 7 days · model estimateavg 42 · peak 66
Nov 5: AQI 54 (peak 66)Nov 6: AQI 54 (peak 63)Nov 7: AQI 33 (peak 61)Nov 8: AQI 28 (peak 59)Nov 9: AQI 37 (peak 62)Nov 10: AQI 38 (peak 55)Nov 11: AQI 47 (peak 54)
Nov 5Nov 11

Where Bandar Seri Begawan stands: the most polluted cities in the world right now · the cleanest

Tree cover detail

Tree cover in Bandar Seri Begawan: Healthy tree cover

56.3% tree cover against a 30% healthy-neighborhood target, across 11.11 km² of land.

Target reached

Trees in this area

156,355

Target trees

156,355

More trees needed

0

CO₂ if planted / yr

0 kg

Deforestation · 2001–2025

How much forest has Bandar Seri Begawan lost?

Since 2001, the area within 10 km of Bandar Seri Begawan has lost about 2,240 hectares of forest (about 3,100 football pitches): 13% of the forest it had in 2000. Most of it (94%) was deforestation, forest cleared for good, mainly for towns and roads.

Satellite image of the area around Bandar Seri Begawan, June 2017

2017: satellite photo from June 2017 of a 5 × 5 km area about 7 km southwest of the city center.

Forest lost since 2001
2,240 haabout 3,100 football pitches
Share of its forest
13%of what there was in 2000
Cleared for good
2,110 hadeforestation: turned into farms, mines or towns

Forest loss has stayed about the same: about 70 hectares a year in 2021–2025, against 81 hectares a year in 2016–2020. The worst year was 2015, when about 178 hectares of forest were lost.

Bandar Seri Begawan's full deforestation report
Forest lost each year around Bandar Seri Begawan, 2001–2025

Hectares of forest lost each year

Forest lost each year around Bandar Seri Begawan, 2001–2025. Use the left and right arrow keys to read each year.178

Show the figures as a table
Forest lost each year around Bandar Seri Begawan, 2001–2025
YearCleared for goodCan grow backTotal
2001149 ha9 ha158 ha
200242 haunder 1 ha42 ha
200374 ha2 ha76 ha
200460 ha3 ha62 ha
200585 ha5 ha89 ha
2006124 ha1 ha125 ha
200791 ha2 ha93 ha
2008102 haunder 1 ha102 ha
2009104 ha2 ha106 ha
201074 ha2 ha76 ha
2011140 ha10 ha150 ha
201295 ha3 ha98 ha
201337 haunder 1 ha37 ha
201496 ha2 ha98 ha
2015138 ha40 ha178 ha
2016133 ha5 ha138 ha
201751 ha1 ha52 ha
201840 ha9 ha49 ha
201969 ha14 ha83 ha
202077 ha4 ha81 ha
202182 ha2 ha85 ha
202245 haunder 1 ha45 ha
202349 haunder 1 ha49 ha
202499 ha18 ha117 ha
202552 haunder 1 ha52 ha

What is causing deforestation around Bandar Seri Begawan?

  • Towns and roadscleared for good58% · 1,300 ha
  • Farms, pasture and plantationscleared for good36% · 805 ha
  • Wildfirescan grow back3.5% · 78 ha

Also: logging, storms, floods and other natural causes, shifting farming, 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
19,800 ha
Forest in 2020
19,800 ha
Overall change
−55 haless forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Bandar Seri Begawan stayed about the same size, at about 19,800 hectares: new forest grew on about 983 hectares, and about 1,040 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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Bandar Seri Begawan air quality (AQI) and tree cover — measured by Airleaf
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Frequently asked

Questions about Bandar Seri Begawan

What is the air quality (AQI) in Bandar Seri Begawan right now?

The latest reading for Bandar Seri Begawan shows an AQI of 10 (Good), measured Nov 11, 23:00 local time by the Limbang, Sarawak, Malaysia ground monitoring station, 16.7 km away, via OpenAQ. The main pollutant is PM10. Air quality is satisfactory for everyone.

Is it safe to exercise outside in Bandar Seri Begawan today?

At AQI 10 (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 Bandar Seri Begawan been like this week?

Over the last 7 days, the CAMS air-quality model put Bandar Seri Begawan's daily AQI at 42 on average, from 28 on Nov 8 to an hourly peak of 66 on Nov 5. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.

How much forest has the area around Bandar Seri Begawan lost since 2001?

Since 2001, the area within 10 km of Bandar Seri Begawan has lost about 2,240 hectares of forest (about 3,100 football pitches): 13% of the forest it had in 2000. Most of it (94%) was deforestation, forest cleared for good, mainly for towns and roads. Forest loss has stayed about the same: about 70 hectares a year in 2021–2025, against 81 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Bandar Seri Begawan stayed about the same size, at about 19,800 hectares: new forest grew on about 983 hectares, and about 1,040 hectares were lost.

What is the tree count in Bandar Seri Begawan?

Bandar Seri Begawan has an estimated 156,355 trees across the 11.11 km² of land measured — 56.3% tree cover, already past the 30% tree-cover target set for this area.

How many more trees does Bandar Seri Begawan need?

Bandar Seri Begawan has already reached its tree-cover target, so no additional trees are needed to close the gap.

How are Bandar Seri Begawan's air quality and tree cover measured?

Air quality is measured by ground monitoring stations near City Centre, 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 City Centre; the tree count is an estimate derived from that cover.

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