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Index Banded Annual Totals for Swansea:
LOW
114 days
MODERATE
85 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 20 Jul 2019 18:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO 10.62 g/m3 21.00 g/m3 20/07/2019 17:00 
NO2 3.06 g/m3 32.20 g/m3 19/07/2019 06:00 
O3 49.86 g/m3 60.49 g/m3 20/07/2019 17:00 
Benzene 0.00 g/m3 1.63 g/m3 20/07/2019 00:00 
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.