Air Quality Lab — Sai Kung, Hong Kong
Air Quality Profile·
Sai Kung reports an annual PM2.5 of 13.1 µg/m³. That's roughly double the WHO 2021 guideline but still far below the EU annual limit of 25 µg/m³.
Sai Kung
Hong Kong
Hong KongAnnual Average
FairWHO annual classification
13.1µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1919 µg/m³ — Moderate
1515 µg/m³ — Fair
1616 µg/m³ — Moderate
1515 µg/m³ — Moderate
8.88.8 µg/m³ — Good
7.37.3 µg/m³ — Good
7.67.6 µg/m³ — Good
9.49.4 µg/m³ — Good
8.08.0 µg/m³ — Good
1414 µg/m³ — Fair
1818 µg/m³ — Moderate
2020 µg/m³ — Moderate
Jan
Feb
Mar
Apr
May
Jun
1919 µg/m³ — Moderate
1515 µg/m³ — Fair
1616 µg/m³ — Moderate
1515 µg/m³ — Moderate
8.88.8 µg/m³ — Good
7.37.3 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
7.67.6 µg/m³ — Good
9.49.4 µg/m³ — Good
8.08.0 µg/m³ — Good
1414 µg/m³ — Fair
1818 µg/m³ — Moderate
2020 µg/m³ — Moderate
Best months: Jun–Jul, SepWorst months: Jan, Nov–Dec
Good5–10 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 across Hong Kong
Sai Kung: 13.1 µg/m³. Typical range in Hong Kong: 13.6–15.8 µg/m³. High anchor: Tuen Mun, 19.8 µg/m³.
17 cities tracked