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Index Banded Annual Totals for Swansea:
LOW
15 days
MODERATE
8 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 23 Jan 2018 19:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO 20.17 g/m3 115.42 g/m3 22/01/2018 17:00 
NO2 34.37 g/m3 114.72 g/m3 22/01/2018 17:00 
O3 62.38 g/m3 73.91 g/m3 22/01/2018 21:00 
Benzene 0.82 g/m3 5.12 g/m3 23/01/2018 03:00 
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.