Air Quality
1.6/5
33.7 µg/m³Unhealthy
Air Quality Profile
Ouésso reports an annual PM2.5 of 33.7 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Ouésso
Republic of the Congo
Republic of the CongoAnnual Average
PoorWHO annual classification
33.7µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
4646 µg/m³ — Unhealthy
5252 µg/m³ — Very Unhealthy
3636 µg/m³ — Unhealthy
2222 µg/m³ — Moderate
2626 µg/m³ — Poor
3939 µg/m³ — Unhealthy
5050 µg/m³ — Very Unhealthy
3333 µg/m³ — Poor
1919 µg/m³ — Moderate
1717 µg/m³ — Moderate
2626 µg/m³ — Poor
4040 µg/m³ — Unhealthy
Jan
Feb
Mar
Apr
May
Jun
4646 µg/m³ — Unhealthy
5252 µg/m³ — Very Unhealthy
3636 µg/m³ — Unhealthy
2222 µg/m³ — Moderate
2626 µg/m³ — Poor
3939 µg/m³ — Unhealthy
Jul
Aug
Sep
Oct
Nov
Dec
5050 µg/m³ — Very Unhealthy
3333 µg/m³ — Poor
1919 µg/m³ — Moderate
1717 µg/m³ — Moderate
2626 µg/m³ — Poor
4040 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: ●●●
Air Quality Profile
Ouésso reports an annual PM2.5 of 33.7 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
OuéssoRepublic of the Congo
Republic of the CongoAnnual Average
PoorWHO annual classification
33.7µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
4646 µg/m³ — Unhealthy
5252 µg/m³ — Very Unhealthy
3636 µg/m³ — Unhealthy
2222 µg/m³ — Moderate
2626 µg/m³ — Poor
3939 µg/m³ — Unhealthy
5050 µg/m³ — Very Unhealthy
3333 µg/m³ — Poor
1919 µg/m³ — Moderate
1717 µg/m³ — Moderate
2626 µg/m³ — Poor
4040 µg/m³ — Unhealthy
Jan
Feb
Mar
Apr
May
Jun
4646 µg/m³ — Unhealthy
5252 µg/m³ — Very Unhealthy
3636 µg/m³ — Unhealthy
2222 µg/m³ — Moderate
2626 µg/m³ — Poor
3939 µg/m³ — Unhealthy
Jul
Aug
Sep
Oct
Nov
Dec
5050 µg/m³ — Very Unhealthy
3333 µg/m³ — Poor
1919 µg/m³ — Moderate
1717 µg/m³ — Moderate
2626 µg/m³ — Poor
4040 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: ●●●
Who thrives in Ouésso
Things to consider in Ouésso
PM2.5 annual average of 33.7 µg/m³ exceeds the WHO interim target of 15 µg/m³. The WHO guideline value is 5 µg/m³.
Data sources: WHO (air quality), OECD (safety).
Why not Ouésso?
Why not Ouésso? Honestly, air quality is a meaningful downside — at 33.7 µg/m³ annual PM2.5, Ouésso sits above the EU limit, which may matter for allergy sufferers or long-term residents.
Frequently asked about Ouésso
▶How many sunny days does Ouésso have per year?
Ouésso averages approximately 237 sunny days per year, based on historical climate data.
▶What is the air quality in Ouésso?
Ouésso has an annual PM2.5 concentration of 33.7 µg/m³, classified as "Poor" by WHO standards. Significantly above WHO targets. Increased health risk, especially outdoors.