Air Quality Lab — Mérida, Mexico
Air Quality Profile
Mérida reports an annual PM2.5 of 15.5 µg/m³. That's meaningfully above the WHO 2021 guideline of 5 µg/m³ yet within the EU annual limit of 25 µg/m³.
Mérida
Mexico
MexicoAnnual Average
ModerateWHO annual classification
15.5µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1212 µg/m³ — Fair
1313 µg/m³ — Fair
1212 µg/m³ — Fair
1717 µg/m³ — Moderate
1717 µg/m³ — Moderate
1717 µg/m³ — Moderate
2323 µg/m³ — Moderate
2121 µg/m³ — Moderate
1818 µg/m³ — Moderate
1313 µg/m³ — Fair
1212 µg/m³ — Fair
1212 µg/m³ — Fair
Jan
Feb
Mar
Apr
May
Jun
1212 µg/m³ — Fair
1313 µg/m³ — Fair
1212 µg/m³ — Fair
1717 µg/m³ — Moderate
1717 µg/m³ — Moderate
1717 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
2323 µg/m³ — Moderate
2121 µg/m³ — Moderate
1818 µg/m³ — Moderate
1313 µg/m³ — Fair
1212 µg/m³ — Fair
1212 µg/m³ — Fair
Best months: Jan, Nov–DecWorst months: Jul–Sep
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 Mexico
Mérida: 15.5 µg/m³. Typical range in Mexico: 10.8–16.4 µg/m³. Low anchor: Nogales, 6.3 µg/m³. High anchor: Texcoco de Mora, 28.4 µg/m³.
464 cities tracked