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Index Banded Annual Totals for Swansea:
LOW
65 days
MODERATE
21 days
HIGH
0 days
VERY HIGH
4 days

Current Readings for Hafod OPSIS DOAS: air quality data

Monitoring station: Hafod OPSIS DOAS
Last updated: GMT 30 Mar 2020 02:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO 0.00 g/m3 0.00 g/m3 30/03/2020 02:00 
NO2 2.46 g/m3 18.55 g/m3 29/03/2020 00:00 
O3 55.59 g/m3 94.42 g/m3 28/03/2020 05:00 
Benzene 0.00 g/m3 0.51 g/m3 28/03/2020 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.