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Index Banded Annual Totals for Swansea:
LOW
239 days
MODERATE
56 days
HIGH
12 days
VERY HIGH
25 days

Current Readings for St Thomas DOAS: air quality data

Monitoring station: St Thomas DOAS
Last updated: GMT 28 Nov 2021 04:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO2 0.00 g/m3 59.86 g/m3 26/11/2021 17:00 
SO2 0.00 g/m3 1.68 g/m3 26/11/2021 12:00 
O3 0.00 g/m3 66.95 g/m3 26/11/2021 22:00 
Benzene 0.00 g/m3 1.11 g/m3 26/11/2021 09:00 
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.