Bandar Seri Begawan
2 km around City Centre
Air quality now
AQI 10
56.3%
tree cover
Healthy tree cover
Asia · air quality report · 3 cities
Right now the 3 cities Airleaf measures in Brunei average AQI 32 (good). The worst air is in Tutong, at AQI 61, and the cleanest in Bandar Seri Begawan, at AQI 10.
None of the 3 measured cities is over AQI 100 today, and 67% have Good air.
Average right now
AQI 32
Good
Updated . Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf.
Brunei · average AQI 32
2 km around City Centre
Air quality now
AQI 10
56.3%
tree cover
Healthy tree cover
2 km around Perumahan Negara Pandan
Air quality now
AQI 24
37.5%
tree cover
Healthy tree cover
2 km around Kampung Sengkarai
Air quality now
AQI 61
61.8%
tree cover
Healthy tree cover
Across the country
None of the 3 measured cities is over AQI 100 today, and 67% have Good air. Air quality is satisfactory for everyone.
3 measured cities
Every measured city, including model estimates where no ground station is near.
Against everywhere else
Right now the cities of Brunei average cleaner air than 86% of the 171 countries Airleaf has enough cities to average, and more tree cover than 98%.
Cleaner air than…
More tree cover than…
See the most polluted and cleanest air rankings for every country.
Deforestation · 2001–2025
Since 2001, Brunei has lost about 44,900 hectares of forest (about 63,000 football pitches): 8.5% of the forest it had in 2000. Most of it (64%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
Hectares of forest lost each year
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 755 ha | 467 ha | 1,220 ha |
| 2002 | 776 ha | 318 ha | 1,090 ha |
| 2003 | 540 ha | 237 ha | 777 ha |
| 2004 | 1,030 ha | 347 ha | 1,380 ha |
| 2005 | 1,250 ha | 511 ha | 1,760 ha |
| 2006 | 725 ha | 372 ha | 1,100 ha |
| 2007 | 999 ha | 575 ha | 1,570 ha |
| 2008 | 782 ha | 696 ha | 1,480 ha |
| 2009 | 1,240 ha | 1,940 ha | 3,180 ha |
| 2010 | 842 ha | 755 ha | 1,600 ha |
| 2011 | 4,600 ha | 967 ha | 5,570 ha |
| 2012 | 4,200 ha | 874 ha | 5,080 ha |
| 2013 | 2,000 ha | 430 ha | 2,430 ha |
| 2014 | 1,360 ha | 1,170 ha | 2,530 ha |
| 2015 | 841 ha | 1,350 ha | 2,190 ha |
| 2016 | 1,490 ha | 1,180 ha | 2,680 ha |
| 2017 | 490 ha | 259 ha | 749 ha |
| 2018 | 365 ha | 534 ha | 899 ha |
| 2019 | 819 ha | 543 ha | 1,360 ha |
| 2020 | 771 ha | 463 ha | 1,230 ha |
| 2021 | 686 ha | 342 ha | 1,030 ha |
| 2022 | 626 ha | 408 ha | 1,030 ha |
| 2023 | 754 ha | 631 ha | 1,390 ha |
| 2024 | 543 ha | 416 ha | 959 ha |
| 2025 | 234 ha | 376 ha | 610 ha |
Forest loss is slowing down: about 1,000 hectares a year in 2021–2025, down from 1,380 hectares a year in 2016–2020. The worst year was 2011, when about 5,570 hectares of forest were lost.
Also: mining and energy, wildfires, shifting farming, 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.
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. How it's measured
72.1% of Brunei was forested as of 2024, against a 30% benchmark. That already clears the benchmark — the city reports above show where cover is still thin locally. Source: World Bank (FAO).
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Frequently asked
Right now the 3 cities Airleaf measures in Brunei average AQI 32 (good). The worst air is in Tutong, at AQI 61, and the cleanest in Bandar Seri Begawan, at AQI 10. None of the 3 measured cities is over AQI 100 today, and 67% have Good air.
Tutong, at AQI 61 (Moderate) on the US EPA index. Unusually sensitive people should consider limiting long outdoor exertion.
Bandar Seri Begawan, at AQI 10 (Good). Both lists rank current readings, from ground stations wherever Brunei has at least three cities with one.
It depends on the city. 2 cities are Good, 1 city is Moderate. At the national average of AQI 32: Air quality is satisfactory for everyone.
About 44,900 ha from 2001 to 2025, 9% of the forest it had in 2000, from the University of Maryland's yearly satellite maps of forest loss. 28,700 ha of it was cleared for good, for farms, mines or towns.
Each city's reading is the US EPA air quality index, from ground monitoring stations where one has reported recently nearby, and from the CAMS atmospheric model elsewhere; each city's report says which. Tree cover is measured over the same 2 km radius in every city, so the cities compare like for like.
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