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Index Banded Annual Totals for Swansea:
LOW
121 days
MODERATE
52 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 23 Jun 2017 22:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO2 8.59 g/m3 33.74 g/m3 22/06/2017 07:00 
SO2 0.98 g/m3 1.80 g/m3 22/06/2017 16:00 
O3 61.61 g/m3 88.14 g/m3 22/06/2017 01:00 
Benzene 0.64 g/m3 2.54 g/m3 22/06/2017 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.