Air Quality Lab — Caguas, Puerto Rico
Air Quality Profile·
Caguas reports an annual PM2.5 of 7.4 µg/m³. That's close to the WHO 2021 annual guideline (5 µg/m³) and well inside historically healthy ranges.
Caguas
Puerto Rico
Puerto RicoAnnual Average
GoodWHO annual classification
7.4µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
6.06.0 µg/m³ — Good
5.95.9 µg/m³ — Good
5.95.9 µg/m³ — Good
6.16.1 µg/m³ — Good
8.08.0 µg/m³ — Good
8.78.7 µg/m³ — Good
1010 µg/m³ — Good
9.29.2 µg/m³ — Good
7.87.8 µg/m³ — Good
8.48.4 µg/m³ — Good
6.86.8 µg/m³ — Good
6.16.1 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
6.06.0 µg/m³ — Good
5.95.9 µg/m³ — Good
5.95.9 µg/m³ — Good
6.16.1 µg/m³ — Good
8.08.0 µg/m³ — Good
8.78.7 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
1010 µg/m³ — Good
9.29.2 µg/m³ — Good
7.87.8 µg/m³ — Good
8.48.4 µg/m³ — Good
6.86.8 µg/m³ — Good
6.16.1 µg/m³ — Good
Best months: Jan–MarWorst months: Jun–Aug
Good5–10 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Puerto Rico
Caguas: 7.4 µg/m³. Typical range in Puerto Rico: 7.2–7.8 µg/m³. Low anchor: Guayama, 6.4 µg/m³. High anchor: Bayamón, 8.1 µg/m³.
15 cities tracked