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Index Banded Annual Totals for Swansea:
LOW
125 days
MODERATE
93 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 Aug 2020 04:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO2 22.02 g/m3 74.05 g/m3 11/08/2020 19:00 
SO2 0.68 g/m3 26.85 g/m3 12/08/2020 08:00 
O3 88.47 g/m3 131.56 g/m3 12/08/2020 14:00 
Benzene 7.93 g/m3 13.44 g/m3 11/08/2020 07:00 
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.