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Index Banded Annual Totals for Swansea:
LOW
98 days
MODERATE
88 days
HIGH
2 days
VERY HIGH
13 days

Current Readings for St Thomas DOAS: air quality data

Monitoring station: St Thomas DOAS
Last updated: GMT 20 Jul 2018 16:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO2 52.34 g/m3 52.34 g/m3 20/07/2018 16:00 
SO2 0.93 g/m3 6.20 g/m3 20/07/2018 05:00 
O3 57.13 g/m3 94.17 g/m3 20/07/2018 11:00 
Benzene 1.05 g/m3 3.93 g/m3 19/07/2018 23:00 
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.