Air Quality Lab — Port Louis, Mauritius
Air Quality Profile
Port Louis reports an annual PM2.5 of 11.9 µg/m³. That's roughly double the WHO 2021 guideline but still far below the EU annual limit of 25 µg/m³.
Port Louis
Mauritius
MauritiusAnnual Average
FairWHO annual classification
11.9µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1010 µg/m³ — Fair
1515 µg/m³ — Moderate
1111 µg/m³ — Fair
1212 µg/m³ — Fair
1111 µg/m³ — Fair
1313 µg/m³ — Fair
1111 µg/m³ — Fair
9.49.4 µg/m³ — Good
1111 µg/m³ — Fair
1212 µg/m³ — Fair
1313 µg/m³ — Fair
1414 µg/m³ — Fair
Jan
Feb
Mar
Apr
May
Jun
1010 µg/m³ — Fair
1515 µg/m³ — Moderate
1111 µg/m³ — Fair
1212 µg/m³ — Fair
1111 µg/m³ — Fair
1313 µg/m³ — Fair
Jul
Aug
Sep
Oct
Nov
Dec
1111 µg/m³ — Fair
9.49.4 µg/m³ — Good
1111 µg/m³ — Fair
1212 µg/m³ — Fair
1313 µg/m³ — Fair
1414 µg/m³ — Fair
Best months: Jan, May, AugWorst months: Feb, Nov–Dec
Good5–10 µg/m³Fair10–15 µg/m³Moderate15–25 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Mauritius
Port Louis: 11.9 µg/m³. Typical range in Mauritius: 7.3–11.1 µg/m³. Low anchor: Triolet, 6.4 µg/m³.
8 cities tracked