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Index Banded Annual Totals for Swansea:
LOW
69 days
MODERATE
5 days
HIGH
1 day
VERY HIGH
4 days

Current Readings for St Thomas DOAS: air quality data

Monitoring station: St Thomas DOAS
Last updated: GMT 19 Mar 2024 08:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO2 0.00 µg/m3 28.49 µg/m3 18/03/2024 08:00 
SO2 0.00 µg/m3 1.91 µg/m3 17/03/2024 14:00 
O3 0.00 µg/m3 95.68 µg/m3 18/03/2024 15:00 
Benzene 0.00 µg/m3 1.78 µg/m3 18/03/2024 18:00 
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.