Air Quality Lab — Impfondo, Republic of the Congo
Air Quality Profile·
Impfondo reports an annual PM2.5 of 35.5 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Impfondo
Republic of the Congo
Republic of the CongoAnnual Average
UnhealthyWHO annual classification
35.5µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
4747 µg/m³ — Unhealthy
5353 µg/m³ — Very Unhealthy
4444 µg/m³ — Unhealthy
2424 µg/m³ — Moderate
2424 µg/m³ — Moderate
3737 µg/m³ — Unhealthy
5050 µg/m³ — Very Unhealthy
3333 µg/m³ — Poor
2222 µg/m³ — Moderate
2121 µg/m³ — Moderate
2727 µg/m³ — Poor
4242 µg/m³ — Unhealthy
Jan
Feb
Mar
Apr
May
Jun
4747 µg/m³ — Unhealthy
5353 µg/m³ — Very Unhealthy
4444 µg/m³ — Unhealthy
2424 µg/m³ — Moderate
2424 µg/m³ — Moderate
3737 µg/m³ — Unhealthy
Jul
Aug
Sep
Oct
Nov
Dec
5050 µg/m³ — Very Unhealthy
3333 µg/m³ — Poor
2222 µg/m³ — Moderate
2121 µg/m³ — Moderate
2727 µg/m³ — Poor
4242 µg/m³ — Unhealthy
Best months: Apr, Sep–OctWorst months: Jan–Feb, Jul
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 Republic of the Congo
Impfondo: 35.5 µg/m³. Typical range in Republic of the Congo: 28.3–36.1 µg/m³. Low anchor: Pointe-Noire, 19.5 µg/m³. High anchor: Brazzaville, 39.9 µg/m³.
22 cities tracked