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Index Banded Annual Totals for Swansea:
LOW
114 days
MODERATE
85 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 20 Jul 2019 18:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO2 16.80 g/m3 28.28 g/m3 19/07/2019 06:00 
SO2 1.02 g/m3 8.85 g/m3 19/07/2019 06:00 
O3 61.47 g/m3 74.53 g/m3 19/07/2019 20:00 
Benzene 1.40 g/m3 1.40 g/m3 20/07/2019 18:00 
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.