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Index Banded Annual Totals for Swansea:
LOW
42 days
MODERATE
25 days
HIGH
6 days
VERY HIGH
8 days

Current Readings for St Thomas DOAS: air quality data

Monitoring station: St Thomas DOAS
Last updated: GMT 22 Mar 2017 22:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO2 64.37 g/m3 103.79 g/m3 22/03/2017 08:00 
SO2 2.49 g/m3 11.29 g/m3 22/03/2017 04:00 
O3 34.94 g/m3 115.70 g/m3 22/03/2017 01:00 
Benzene 0.57 g/m3 3.91 g/m3 22/03/2017 04:00 
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.