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Index Banded Annual Totals for Swansea:
LOW
51 days
MODERATE
29 days
HIGH
0 days
VERY HIGH
0 days

Current Readings for Hafod OPSIS DOAS: air quality data

Monitoring station: Hafod OPSIS DOAS
Last updated: GMT 21 Mar 2019 03:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO 33.31 g/m3 114.22 g/m3 19/03/2019 07:00 
NO2 67.74 g/m3 88.58 g/m3 19/03/2019 07:00 
O3 27.84 g/m3 81.73 g/m3 19/03/2019 12:00 
Benzene 0.00 g/m3 0.98 g/m3 20/03/2019 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.