Air Quality Lab — Guayama, Puerto Rico
Air Quality Profile·
Guayama reports an annual PM2.5 of 6.4 µg/m³. That's close to the WHO 2021 annual guideline (5 µg/m³) and well inside historically healthy ranges.
Guayama
Puerto Rico
Puerto RicoAnnual Average
GoodWHO annual classification
6.4µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
4.44.4 µg/m³ — Excellent
4.54.5 µg/m³ — Excellent
3.53.5 µg/m³ — Excellent
6.96.9 µg/m³ — Good
6.96.9 µg/m³ — Good
8.68.6 µg/m³ — Good
8.08.0 µg/m³ — Good
8.98.9 µg/m³ — Good
7.37.3 µg/m³ — Good
8.18.1 µg/m³ — Good
6.06.0 µg/m³ — Good
3.33.3 µg/m³ — Excellent
Jan
Feb
Mar
Apr
May
Jun
4.44.4 µg/m³ — Excellent
4.54.5 µg/m³ — Excellent
3.53.5 µg/m³ — Excellent
6.96.9 µg/m³ — Good
6.96.9 µg/m³ — Good
8.68.6 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
8.08.0 µg/m³ — Good
8.98.9 µg/m³ — Good
7.37.3 µg/m³ — Good
8.18.1 µg/m³ — Good
6.06.0 µg/m³ — Good
3.33.3 µg/m³ — Excellent
Best months: Jan, Mar, DecWorst months: Jun, Aug, Oct
Excellent0–5 µg/m³Good5–10 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Puerto Rico
Guayama: 6.4 µg/m³. Typical range in Puerto Rico: 7.2–7.8 µg/m³. High anchor: Bayamón, 8.1 µg/m³.
15 cities tracked