Air Quality Lab — Apia, Samoa
Air Quality Profile·
Apia reports an annual PM2.5 of 3.5 µg/m³. That's below the WHO 2021 annual guideline of 5 µg/m³ — cleaner than most cities on the continent.
Apia
Samoa
SamoaAnnual Average
ExcellentWHO annual classification
3.5µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
4.44.4 µg/m³ — Excellent
4.64.6 µg/m³ — Excellent
3.53.5 µg/m³ — Excellent
3.13.1 µg/m³ — Excellent
3.63.6 µg/m³ — Excellent
2.72.7 µg/m³ — Excellent
3.43.4 µg/m³ — Excellent
3.33.3 µg/m³ — Excellent
3.33.3 µg/m³ — Excellent
3.13.1 µg/m³ — Excellent
3.43.4 µg/m³ — Excellent
3.93.9 µg/m³ — Excellent
Jan
Feb
Mar
Apr
May
Jun
4.44.4 µg/m³ — Excellent
4.64.6 µg/m³ — Excellent
3.53.5 µg/m³ — Excellent
3.13.1 µg/m³ — Excellent
3.63.6 µg/m³ — Excellent
2.72.7 µg/m³ — Excellent
Jul
Aug
Sep
Oct
Nov
Dec
3.43.4 µg/m³ — Excellent
3.33.3 µg/m³ — Excellent
3.33.3 µg/m³ — Excellent
3.13.1 µg/m³ — Excellent
3.43.4 µg/m³ — Excellent
3.93.9 µg/m³ — Excellent
Best months: Apr, Jun, OctWorst months: Jan–Feb, Dec
Excellent0–5 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Oceania
Apia: 3.5 µg/m³. Typical range in Oceania: 5.4–6.3 µg/m³. Low anchor: Tarawa, 2.6 µg/m³. High anchor: Port Moresby, 7.8 µg/m³.
165 cities tracked