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Index Banded Annual Totals for Swansea:
LOW
226 days
MODERATE
90 days
HIGH
2 days
VERY HIGH
0 days

Current Readings for St Thomas DOAS: air quality data

Monitoring station: St Thomas DOAS
Last updated: GMT 14 Nov 2019 05:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO2 35.37 g/m3 102.09 g/m3 13/11/2019 08:00 
SO2 3.30 g/m3 9.66 g/m3 13/11/2019 15:00 
O3 64.97 g/m3 81.40 g/m3 14/11/2019 01:00 
Benzene 1.27 g/m3 4.54 g/m3 13/11/2019 15:00 
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.