Air Quality Lab — Kuala Belait, Brunei
Air Quality Profile·
Kuala Belait reports an annual PM2.5 of 9.3 µg/m³. That's close to the WHO 2021 annual guideline (5 µg/m³) and well inside historically healthy ranges.
Kuala Belait
Brunei
BruneiAnnual Average
GoodWHO annual classification
9.3µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
9.29.2 µg/m³ — Good
9.99.9 µg/m³ — Good
8.38.3 µg/m³ — Good
1111 µg/m³ — Fair
1010 µg/m³ — Good
7.17.1 µg/m³ — Good
1010 µg/m³ — Good
1313 µg/m³ — Fair
8.98.9 µg/m³ — Good
9.19.1 µg/m³ — Good
7.27.2 µg/m³ — Good
8.58.5 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
9.29.2 µg/m³ — Good
9.99.9 µg/m³ — Good
8.38.3 µg/m³ — Good
1111 µg/m³ — Fair
1010 µg/m³ — Good
7.17.1 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
1010 µg/m³ — Good
1313 µg/m³ — Fair
8.98.9 µg/m³ — Good
9.19.1 µg/m³ — Good
7.27.2 µg/m³ — Good
8.58.5 µg/m³ — Good
Best months: Mar, Jun, NovWorst months: Apr, Jul–Aug
Good5–10 µg/m³Fair10–15 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Brunei
Kuala Belait: 9.3 µg/m³. Typical range in Brunei: 9.5–11.1 µg/m³. High anchor: Sengkurong, 12.3 µg/m³.
8 cities tracked