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Index Banded Annual Totals for Swansea:
LOW
103 days
MODERATE
43 days
HIGH
6 days
VERY HIGH
15 days

Current Readings for St Thomas DOAS: air quality data

Monitoring station: St Thomas DOAS
Last updated: GMT 16 Jun 2021 08:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO2 12.80 g/m3 53.80 g/m3 16/06/2021 00:00 
SO2 1.51 g/m3 8.32 g/m3 15/06/2021 06:00 
O3 42.04 g/m3 65.71 g/m3 15/06/2021 12:00 
Benzene 7.78 g/m3 10.28 g/m3 15/06/2021 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.