Air Quality Hong Kong

Air QualityHong KongHong Kong

Air Quality for February 25, 2024

Air pollution

Data on the main pollutant gases

Pollutant Value
Carbon Monoxide coming soon μg/m3
Ozone coming soon μg/m3
Nitrogen dioxide coming soon μg/m3
Sulphur dioxide coming soon μg/m3
PM2.5 coming soon μg/m3
PM10 coming soon μg/m3

Daily Air Quality Index

The Daily Air Quality Index informs you about air pollution levels and offers recommended actions and health tips. The definition of each of the indices is given below.

Name Value
US - EPA standard
UK Defra Index coming soon

Hourly Air Quality for Hong Kong for February 25, 2024

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 19.3 ℃

Wind speed 8.3 km

Wind direction NSW

Wind direction 22°

Humidity 67 %

Cloud cover 68 %

Pressure 1021 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 19.2 ℃

Wind speed 16.9 km

Wind direction NSW

Wind direction 20°

Humidity 72 %

Cloud cover 50 %

Pressure 1022 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 19.1 ℃

Wind speed 13 km

Wind direction NSW

Wind direction 14°

Humidity 67 %

Cloud cover 86 %

Pressure 1020 mb

Precipitation 0.01 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 19 ℃

Wind speed 13 km

Wind direction NSW

Wind direction 24°

Humidity 65 %

Cloud cover 82 %

Pressure 1020 mb

Precipitation 0.01 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 18.8 ℃

Wind speed 11.5 km

Wind direction NSW

Wind direction 30°

Humidity 64 %

Cloud cover 81 %

Pressure 1019 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 18.7 ℃

Wind speed 11.2 km

Wind direction NSW

Wind direction 37°

Humidity 64 %

Cloud cover 79 %

Pressure 1020 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 18.5 ℃

Wind speed 11.9 km

Wind direction NSW

Wind direction 45°

Humidity 65 %

Cloud cover 83 %

Pressure 1020 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 18.4 ℃

Wind speed 13 km

Wind direction NSW

Wind direction 40°

Humidity 65 %

Cloud cover 83 %

Pressure 1021 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 18.4 ℃

Wind speed 14 km

Wind direction NSW

Wind direction 40°

Humidity 65 %

Cloud cover 85 %

Pressure 1021 mb

Precipitation 0.01 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 18.3 ℃

Wind speed 13.7 km

Wind direction NSW

Wind direction 50°

Humidity 65 %

Cloud cover 84 %

Pressure 1022 mb

Precipitation 0.01 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 18.4 ℃

Wind speed 13.7 km

Wind direction NSW

Wind direction 58°

Humidity 66 %

Cloud cover 79 %

Pressure 1022 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 18.6 ℃

Wind speed 13.7 km

Wind direction NSW

Wind direction 54°

Humidity 66 %

Cloud cover 83 %

Pressure 1022 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 18.9 ℃

Wind speed 14 km

Wind direction NSW

Wind direction 56°

Humidity 66 %

Cloud cover 69 %

Pressure 1022 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 19 ℃

Wind speed 14 km

Wind direction NSW

Wind direction 64°

Humidity 65 %

Cloud cover 70 %

Pressure 1021 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 19.2 ℃

Wind speed 14.4 km

Wind direction NSW

Wind direction 75°

Humidity 65 %

Cloud cover 67 %

Pressure 1020 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 19.5 ℃

Wind speed 15.1 km

Wind direction NSW

Wind direction 79°

Humidity 66 %

Cloud cover 60 %

Pressure 1019 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 19.7 ℃

Wind speed 16.2 km

Wind direction NSW

Wind direction 86°

Humidity 66 %

Cloud cover 27 %

Pressure 1019 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 19.8 ℃

Wind speed 16.9 km

Wind direction NSW

Wind direction 86°

Humidity 67 %

Cloud cover 10 %

Pressure 1019 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 19.6 ℃

Wind speed 16.6 km

Wind direction NSW

Wind direction 83°

Humidity 70 %

Cloud cover 9 %

Pressure 1019 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 19.3 ℃

Wind speed 15.5 km

Wind direction NSW

Wind direction 80°

Humidity 73 %

Cloud cover 15 %

Pressure 1020 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 19.3 ℃

Wind speed 15.8 km

Wind direction NSW

Wind direction 78°

Humidity 75 %

Cloud cover 22 %

Pressure 1020 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 19.3 ℃

Wind speed 16.2 km

Wind direction NSW

Wind direction 70°

Humidity 76 %

Cloud cover 28 %

Pressure 1021 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 19.3 ℃

Wind speed 16.9 km

Wind direction NSW

Wind direction 69°

Humidity 78 %

Cloud cover 45 %

Pressure 1021 mb

Precipitation 0 mm

Carbon Monoxide coming soon μg/m3

Ozone coming soon μg/m3

Nitrogen dioxide coming soon μg/m3

Sulphur dioxide coming soon μg/m3

PM2.5 coming soon μg/m3

PM10 coming soon μg/m3

US - EPA standard coming soon

UK Defra Index coming soon

Wind chill 19.3 ℃

Wind speed 19.1 km

Wind direction NSW

Wind direction 70°

Humidity 78 %

Cloud cover 76 %

Pressure 1021 mb

Precipitation 0.01 mm

Wind Activity and Humidity

Parameter Value
Wind speed max 19.1 kph
Humidity avg 68 %