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Index Banded Annual Totals for Swansea:
LOW
65 days
MODERATE
21 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 Mar 2020 03:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO2 41.87 g/m3 41.87 g/m3 30/03/2020 03:00 
SO2 2.42 g/m3 4.44 g/m3 28/03/2020 06:00 
O3 58.35 g/m3 98.33 g/m3 29/03/2020 13:00 
Benzene 0.09 g/m3 1.35 g/m3 29/03/2020 08:00 
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.