Air Quality Lab — Heroica Matamoros, Mexico
Air Quality Profile·
Heroica Matamoros reports an annual PM2.5 of 9.9 µg/m³. That's close to the WHO 2021 annual guideline (5 µg/m³) and well inside historically healthy ranges.
Heroica Matamoros
Mexico
MexicoAnnual Average
GoodWHO annual classification
9.9µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
9.69.6 µg/m³ — Good
8.88.8 µg/m³ — Good
9.89.8 µg/m³ — Good
1313 µg/m³ — Fair
1212 µg/m³ — Fair
1010 µg/m³ — Fair
1212 µg/m³ — Fair
8.78.7 µg/m³ — Good
1010 µg/m³ — Good
8.68.6 µg/m³ — Good
7.17.1 µg/m³ — Good
9.69.6 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
9.69.6 µg/m³ — Good
8.88.8 µg/m³ — Good
9.89.8 µg/m³ — Good
1313 µg/m³ — Fair
1212 µg/m³ — Fair
1010 µg/m³ — Fair
Jul
Aug
Sep
Oct
Nov
Dec
1212 µg/m³ — Fair
8.78.7 µg/m³ — Good
1010 µg/m³ — Good
8.68.6 µg/m³ — Good
7.17.1 µg/m³ — Good
9.69.6 µg/m³ — Good
Best months: Aug, Oct–NovWorst months: Apr–May, Jul
Good5–10 µg/m³Fair10–15 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Mexico
Heroica Matamoros: 9.9 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