Air Quality Lab — RMI Capitol, Marshall Islands
Air Quality Profile·
RMI Capitol reports an annual PM2.5 of 2.9 µg/m³. That's below the WHO 2021 annual guideline of 5 µg/m³ — cleaner than most cities on the continent.
RMI Capitol
Marshall Islands
Marshall IslandsAnnual Average
ExcellentWHO annual classification
2.9µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
2.52.5 µg/m³ — Excellent
2.82.8 µg/m³ — Excellent
3.13.1 µg/m³ — Excellent
3.03.0 µg/m³ — Excellent
3.33.3 µg/m³ — Excellent
2.82.8 µg/m³ — Excellent
3.13.1 µg/m³ — Excellent
2.82.8 µg/m³ — Excellent
2.62.6 µg/m³ — Excellent
3.13.1 µg/m³ — Excellent
2.82.8 µg/m³ — Excellent
3.03.0 µg/m³ — Excellent
Jan
Feb
Mar
Apr
May
Jun
2.52.5 µg/m³ — Excellent
2.82.8 µg/m³ — Excellent
3.13.1 µg/m³ — Excellent
3.03.0 µg/m³ — Excellent
3.33.3 µg/m³ — Excellent
2.82.8 µg/m³ — Excellent
Jul
Aug
Sep
Oct
Nov
Dec
3.13.1 µg/m³ — Excellent
2.82.8 µg/m³ — Excellent
2.62.6 µg/m³ — Excellent
3.13.1 µg/m³ — Excellent
2.82.8 µg/m³ — Excellent
3.03.0 µg/m³ — Excellent
Best months: Jan–Feb, SepWorst months: May, Jul, Oct
Excellent0–5 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Oceania
RMI Capitol: 2.9 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