Air Quality Lab — Guerou, Mauritania
Air Quality Profile·
Guerou reports an annual PM2.5 of 33.5 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Guerou
Mauritania
MauritaniaAnnual Average
PoorWHO annual classification
33.5µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
4141 µg/m³ — Unhealthy
5353 µg/m³ — Very Unhealthy
3232 µg/m³ — Poor
3131 µg/m³ — Poor
3838 µg/m³ — Unhealthy
4747 µg/m³ — Unhealthy
3939 µg/m³ — Unhealthy
2020 µg/m³ — Moderate
1919 µg/m³ — Moderate
2828 µg/m³ — Poor
2929 µg/m³ — Poor
2525 µg/m³ — Poor
Jan
Feb
Mar
Apr
May
Jun
4141 µg/m³ — Unhealthy
5353 µg/m³ — Very Unhealthy
3232 µg/m³ — Poor
3131 µg/m³ — Poor
3838 µg/m³ — Unhealthy
4747 µg/m³ — Unhealthy
Jul
Aug
Sep
Oct
Nov
Dec
3939 µg/m³ — Unhealthy
2020 µg/m³ — Moderate
1919 µg/m³ — Moderate
2828 µg/m³ — Poor
2929 µg/m³ — Poor
2525 µg/m³ — Poor
Best months: Aug–Sep, DecWorst months: Jan–Feb, Jun
Moderate15–25 µg/m³Poor25–35 µg/m³Unhealthy35–50 µg/m³Very Unhealthy50–75 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Mauritania
Guerou: 33.5 µg/m³. Typical range in Mauritania: 31.9–36.8 µg/m³. Low anchor: Néma, 27.0 µg/m³. High anchor: Nouakchott, 38.1 µg/m³.
20 cities tracked