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Index Banded Annual Totals for Swansea:
LOW
226 days
MODERATE
90 days
HIGH
2 days
VERY HIGH
0 days

Current Readings for Hafod OPSIS DOAS: air quality data

Monitoring station: Hafod OPSIS DOAS
Last updated: GMT 14 Nov 2019 04:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO 23.10 g/m3 292.55 g/m3 13/11/2019 08:00 
NO2 17.02 g/m3 120.09 g/m3 13/11/2019 08:00 
O3 71.68 g/m3 82.86 g/m3 12/11/2019 10:00 
Benzene 0.00 g/m3 0.65 g/m3 13/11/2019 06:00 
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.