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Index Banded Annual Totals for Swansea:
LOW
93 days
MODERATE
18 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 25 Apr 2024 07:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO2 56.82 µg/m3 75.17 µg/m3 25/04/2024 01:00 
SO2 0.00 µg/m3 1.90 µg/m3 25/04/2024 03:00 
O3 26.22 µg/m3 46.69 µg/m3 25/04/2024 03:00 
Benzene 0.00 µg/m3 0.00 µg/m3 25/04/2024 03:00 
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.