Air Quality

Air Quality

Air Quality for May 21, 2025

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 for May 21, 2025

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 8.3 ℃

Wind speed 14 km

Wind direction NSW

Wind direction 212°

Humidity 95 %

Cloud cover 84 %

Pressure 1002 mb

Precipitation 0.85 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 8.3 ℃

Wind speed 14.8 km

Wind direction NSW

Wind direction 211°

Humidity 97 %

Cloud cover 100 %

Pressure 1002 mb

Precipitation 1.44 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 8.6 ℃

Wind speed 14.8 km

Wind direction NSW

Wind direction 238°

Humidity 96 %

Cloud cover 80 %

Pressure 1002 mb

Precipitation 0.36 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 8.8 ℃

Wind speed 13.3 km

Wind direction NSW

Wind direction 221°

Humidity 96 %

Cloud cover 86 %

Pressure 1002 mb

Precipitation 0.13 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 9.3 ℃

Wind speed 9.7 km

Wind direction NSW

Wind direction 216°

Humidity 96 %

Cloud cover 89 %

Pressure 1002 mb

Precipitation 0.09 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 10.6 ℃

Wind speed 6.5 km

Wind direction NSW

Wind direction 224°

Humidity 94 %

Cloud cover 69 %

Pressure 1001 mb

Precipitation 0.3 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 11 ℃

Wind speed 7.2 km

Wind direction NSW

Wind direction 221°

Humidity 91 %

Cloud cover 77 %

Pressure 1001 mb

Precipitation 0.39 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 11.5 ℃

Wind speed 7.9 km

Wind direction NSW

Wind direction 245°

Humidity 89 %

Cloud cover 100 %

Pressure 1001 mb

Precipitation 0.59 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 10.8 ℃

Wind speed 9.7 km

Wind direction NSW

Wind direction 264°

Humidity 89 %

Cloud cover 100 %

Pressure 1001 mb

Precipitation 0.72 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 10 ℃

Wind speed 11.2 km

Wind direction NSW

Wind direction 287°

Humidity 89 %

Cloud cover 100 %

Pressure 1001 mb

Precipitation 0.63 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 8.8 ℃

Wind speed 13 km

Wind direction NSW

Wind direction 305°

Humidity 91 %

Cloud cover 100 %

Pressure 1002 mb

Precipitation 0.9 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 7.2 ℃

Wind speed 11.9 km

Wind direction NSW

Wind direction 308°

Humidity 94 %

Cloud cover 100 %

Pressure 1002 mb

Precipitation 0.78 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 7 ℃

Wind speed 11.2 km

Wind direction NSW

Wind direction 288°

Humidity 94 %

Cloud cover 91 %

Pressure 1003 mb

Precipitation 0.14 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 7.8 ℃

Wind speed 11.2 km

Wind direction NSW

Wind direction 253°

Humidity 90 %

Cloud cover 72 %

Pressure 1003 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 10.8 ℃

Wind speed 16.2 km

Wind direction NSW

Wind direction 254°

Humidity 75 %

Cloud cover 87 %

Pressure 1002 mb

Precipitation 0.06 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 12.4 ℃

Wind speed 19.4 km

Wind direction NSW

Wind direction 272°

Humidity 63 %

Cloud cover 81 %

Pressure 1002 mb

Precipitation 0.03 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 12.8 ℃

Wind speed 16.9 km

Wind direction NSW

Wind direction 279°

Humidity 62 %

Cloud cover 26 %

Pressure 1002 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 12.5 ℃

Wind speed 12.2 km

Wind direction NSW

Wind direction 255°

Humidity 66 %

Cloud cover 31 %

Pressure 1002 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 10 ℃

Wind speed 15.8 km

Wind direction NSW

Wind direction 249°

Humidity 72 %

Cloud cover 55 %

Pressure 1003 mb

Precipitation 0.09 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 9.3 ℃

Wind speed 16.6 km

Wind direction NSW

Wind direction 251°

Humidity 75 %

Cloud cover 56 %

Pressure 1003 mb

Precipitation 0.28 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 8.2 ℃

Wind speed 11.2 km

Wind direction NSW

Wind direction 222°

Humidity 92 %

Cloud cover 99 %

Pressure 1003 mb

Precipitation 0.69 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 7.3 ℃

Wind speed 16.6 km

Wind direction NSW

Wind direction 217°

Humidity 95 %

Cloud cover 94 %

Pressure 1003 mb

Precipitation 0.34 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 7 ℃

Wind speed 19.1 km

Wind direction NSW

Wind direction 261°

Humidity 94 %

Cloud cover 61 %

Pressure 1003 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 5.4 ℃

Wind speed 17.6 km

Wind direction NSW

Wind direction 281°

Humidity 95 %

Cloud cover 60 %

Pressure 1004 mb

Precipitation 0 mm

Wind Activity and Humidity

Parameter Value
Wind speed max 19.4 kph
Humidity avg 87 %