Air Quality Lab — Moroni, Comoros
Air Quality Profile·
Moroni reports an annual PM2.5 of 5.8 µg/m³. That's close to the WHO 2021 annual guideline (5 µg/m³) and well inside historically healthy ranges.
Moroni
Comoros
ComorosAnnual Average
GoodWHO annual classification
5.8µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
7.97.9 µg/m³ — Good
7.87.8 µg/m³ — Good
5.25.2 µg/m³ — Good
4.74.7 µg/m³ — Excellent
5.15.1 µg/m³ — Good
4.44.4 µg/m³ — Excellent
4.74.7 µg/m³ — Excellent
5.25.2 µg/m³ — Good
5.75.7 µg/m³ — Good
6.46.4 µg/m³ — Good
5.65.6 µg/m³ — Good
7.27.2 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
7.97.9 µg/m³ — Good
7.87.8 µg/m³ — Good
5.25.2 µg/m³ — Good
4.74.7 µg/m³ — Excellent
5.15.1 µg/m³ — Good
4.44.4 µg/m³ — Excellent
Jul
Aug
Sep
Oct
Nov
Dec
4.74.7 µg/m³ — Excellent
5.25.2 µg/m³ — Good
5.75.7 µg/m³ — Good
6.46.4 µg/m³ — Good
5.65.6 µg/m³ — Good
7.27.2 µg/m³ — Good
Best months: Apr, Jun–JulWorst months: Jan–Feb, Dec
Excellent0–5 µg/m³Good5–10 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Comoros
Moroni: 5.8 µg/m³. Typical range in Comoros: 5.2–5.8 µg/m³. Low anchor: Fomboni, 5.2 µg/m³.
3 cities tracked