Air Quality Lab — Gressier, Haiti
Air Quality Profile·
Gressier reports an annual PM2.5 of 15.2 µg/m³. That's meaningfully above the WHO 2021 guideline of 5 µg/m³ yet within the EU annual limit of 25 µg/m³.
Gressier
Haiti
HaitiAnnual Average
ModerateWHO annual classification
15.2µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1111 µg/m³ — Fair
1212 µg/m³ — Fair
1212 µg/m³ — Fair
1414 µg/m³ — Fair
1515 µg/m³ — Moderate
2121 µg/m³ — Moderate
2121 µg/m³ — Moderate
2323 µg/m³ — Moderate
1515 µg/m³ — Moderate
1414 µg/m³ — Fair
1313 µg/m³ — Fair
1111 µg/m³ — Fair
Jan
Feb
Mar
Apr
May
Jun
1111 µg/m³ — Fair
1212 µg/m³ — Fair
1212 µg/m³ — Fair
1414 µg/m³ — Fair
1515 µg/m³ — Moderate
2121 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
2121 µg/m³ — Moderate
2323 µg/m³ — Moderate
1515 µg/m³ — Moderate
1414 µg/m³ — Fair
1313 µg/m³ — Fair
1111 µg/m³ — Fair
Best months: Jan, Mar, DecWorst months: Jun–Aug
Fair10–15 µg/m³Moderate15–25 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Haiti
Gressier: 15.2 µg/m³. Typical range in Haiti: 11.5–13.4 µg/m³. Low anchor: Jérémie, 10.1 µg/m³. High anchor: Gonaïves, 14.7 µg/m³.
22 cities tracked