Air Quality Lab — Saint Croix, U.S. Virgin Islands
Air Quality Profile·
Saint Croix reports an annual PM2.5 of 6.3 µg/m³. That's close to the WHO 2021 annual guideline (5 µg/m³) and well inside historically healthy ranges.
Saint Croix
U.S. Virgin Islands
U.S. Virgin IslandsAnnual Average
GoodWHO annual classification
6.3µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
4.34.3 µg/m³ — Excellent
4.04.0 µg/m³ — Excellent
4.64.6 µg/m³ — Excellent
6.96.9 µg/m³ — Good
7.87.8 µg/m³ — Good
7.17.1 µg/m³ — Good
7.67.6 µg/m³ — Good
9.99.9 µg/m³ — Good
8.28.2 µg/m³ — Good
7.97.9 µg/m³ — Good
5.25.2 µg/m³ — Good
2.82.8 µg/m³ — Excellent
Jan
Feb
Mar
Apr
May
Jun
4.34.3 µg/m³ — Excellent
4.04.0 µg/m³ — Excellent
4.64.6 µg/m³ — Excellent
6.96.9 µg/m³ — Good
7.87.8 µg/m³ — Good
7.17.1 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
7.67.6 µg/m³ — Good
9.99.9 µg/m³ — Good
8.28.2 µg/m³ — Good
7.97.9 µg/m³ — Good
5.25.2 µg/m³ — Good
2.82.8 µg/m³ — Excellent
Best months: Jan–Feb, DecWorst months: 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 worldwide
Saint Croix: 6.3 µg/m³. Typical range: 8.9–26.6 µg/m³. Low anchor: Bergen, 4.9 µg/m³. High anchor: Diepsloot, 162.1 µg/m³.
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