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Index Banded Annual Totals for Swansea:
LOW
104 days
MODERATE
24 days
HIGH
1 day
VERY HIGH
5 days

Current Readings for St Thomas DOAS: air quality data

Monitoring station: St Thomas DOAS
Last updated: GMT 13 May 2024 09:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO2 34.24 µg/m3 115.11 µg/m3 11/05/2024 22:00 
SO2 20.53 µg/m3 20.53 µg/m3 13/05/2024 09:00 
O3 52.21 µg/m3 128.28 µg/m3 11/05/2024 17:00 
Benzene 0.00 µg/m3 2.97 µg/m3 11/05/2024 17:00 
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.