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Index Banded Annual Totals for Swansea:
LOW
78 days
MODERATE
69 days
HIGH
0 days
VERY HIGH
4 days

Current Readings for St Thomas DOAS: air quality data

Monitoring station: St Thomas DOAS
Last updated: GMT 30 May 2020 14:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO2 19.34 g/m3 87.83 g/m3 30/05/2020 00:00 
SO2 1.86 g/m3 35.71 g/m3 29/05/2020 07:00 
O3 117.00 g/m3 117.21 g/m3 30/05/2020 13:00 
Benzene 2.61 g/m3 4.67 g/m3 28/05/2020 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.