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Index Banded Annual Totals for Swansea:
LOW
65 days
MODERATE
73 days
HIGH
1 day
VERY HIGH
0 days

Current Readings for Hafod OPSIS DOAS: air quality data

Monitoring station: Hafod OPSIS DOAS
Last updated: GMT 19 May 2019 20:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO 18.28 g/m3 64.05 g/m3 18/05/2019 07:00 
NO2 15.41 g/m3 77.35 g/m3 18/05/2019 21:00 
O3 75.37 g/m3 83.46 g/m3 19/05/2019 15:00 
Benzene 0.35 g/m3 0.86 g/m3 18/05/2019 08:00 
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.