Air Quality Lab — West Bay, Cayman Islands
Air Quality Profile·
West Bay reports an annual PM2.5 of 9.5 µg/m³. That's close to the WHO 2021 annual guideline (5 µg/m³) and well inside historically healthy ranges.
West Bay
Cayman Islands
Cayman IslandsAnnual Average
GoodWHO annual classification
9.5µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
5.05.0 µg/m³ — Excellent
5.55.5 µg/m³ — Good
6.16.1 µg/m³ — Good
9.19.1 µg/m³ — Good
1212 µg/m³ — Fair
1515 µg/m³ — Fair
1717 µg/m³ — Moderate
1515 µg/m³ — Moderate
9.99.9 µg/m³ — Good
8.68.6 µg/m³ — Good
6.26.2 µg/m³ — Good
4.54.5 µg/m³ — Excellent
Jan
Feb
Mar
Apr
May
Jun
5.05.0 µg/m³ — Excellent
5.55.5 µg/m³ — Good
6.16.1 µg/m³ — Good
9.19.1 µg/m³ — Good
1212 µg/m³ — Fair
1515 µg/m³ — Fair
Jul
Aug
Sep
Oct
Nov
Dec
1717 µg/m³ — Moderate
1515 µg/m³ — Moderate
9.99.9 µg/m³ — Good
8.68.6 µg/m³ — Good
6.26.2 µg/m³ — Good
4.54.5 µg/m³ — Excellent
Best months: Jan–Feb, DecWorst months: Jun–Aug
Excellent0–5 µg/m³Good5–10 µg/m³Fair10–15 µg/m³Moderate15–25 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared worldwide
West Bay: 9.5 µg/m³. Typical range: 8.9–26.6 µg/m³. Low anchor: Bergen, 4.9 µg/m³. High anchor: Diepsloot, 162.1 µg/m³.
22,874 cities tracked