Air Quality Lab — Niah, Malaysia
Air Quality Profile·
Niah reports an annual PM2.5 of 9.4 µg/m³. That's close to the WHO 2021 annual guideline (5 µg/m³) and well inside historically healthy ranges.
Niah
Malaysia
MalaysiaAnnual Average
GoodWHO annual classification
9.4µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
7.87.8 µg/m³ — Good
8.28.2 µg/m³ — Good
5.85.8 µg/m³ — Good
1111 µg/m³ — Fair
1212 µg/m³ — Fair
8.88.8 µg/m³ — Good
1212 µg/m³ — Fair
1010 µg/m³ — Fair
1212 µg/m³ — Fair
1010 µg/m³ — Good
6.26.2 µg/m³ — Good
7.47.4 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
7.87.8 µg/m³ — Good
8.28.2 µg/m³ — Good
5.85.8 µg/m³ — Good
1111 µg/m³ — Fair
1212 µg/m³ — Fair
8.88.8 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
1212 µg/m³ — Fair
1010 µg/m³ — Fair
1212 µg/m³ — Fair
1010 µg/m³ — Good
6.26.2 µg/m³ — Good
7.47.4 µg/m³ — Good
Best months: Mar, Nov–DecWorst months: May, Jul, Sep
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 Malaysia
Niah: 9.4 µg/m³. Typical range in Malaysia: 13.0–18.2 µg/m³. Low anchor: Beluru, 8.2 µg/m³. High anchor: Bukit Mertajam, 24.5 µg/m³.
233 cities tracked