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Index Banded Annual Totals for Swansea:
LOW
105 days
MODERATE
29 days
HIGH
1 day
VERY HIGH
17 days

Current Readings for Swansea AURN: air quality data

Monitoring station: Swansea AURN
Last updated: GMT 01 Jun 2023 16:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NOx 12.89 g/m3 43.71 g/m3 01/06/2023 06:00 
NO 3.74 g/m3 16.68 g/m3 01/06/2023 06:00 
NO2 7.17 g/m3 29.91 g/m3 31/05/2023 01:00 
PM10 19.47 g/m3 19.47 g/m3 01/06/2023 16:00 
PM2.5 7.46 g/m3 12.10 g/m3 01/06/2023 13:00 
Current Value = The hourly average
Highest Reading = Highest hourly average within the last 24 hour period

All data supplied are non-validated and for information only.