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Index Banded Annual Totals for Swansea:
LOW
154 days
MODERATE
54 days
HIGH
1 day
VERY HIGH
0 days

Current Readings for St Thomas DOAS: air quality data

Monitoring station: St Thomas DOAS
Last updated: GMT 28 Jul 2017 09:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO2 19.72 g/m3 27.24 g/m3 27/07/2017 05:00 
SO2 1.08 g/m3 2.15 g/m3 27/07/2017 01:00 
O3 61.13 g/m3 76.75 g/m3 28/07/2017 03:00 
Benzene 1.04 g/m3 1.63 g/m3 27/07/2017 16:00 
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.