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Index Banded Annual Totals for Swansea:
LOW
82 days
MODERATE
44 days
HIGH
11 days
VERY HIGH
8 days

Current Readings for Hafod OPSIS DOAS: air quality data

Monitoring station: Hafod OPSIS DOAS
Last updated: GMT 25 May 2017 07:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO 0.00 g/m3 100.28 g/m3 23/05/2017 15:00 
NO2 0.00 g/m3 84.51 g/m3 24/05/2017 20:00 
O3 0.00 g/m3 49.29 g/m3 23/05/2017 23:00 
Benzene 0.00 g/m3 2.19 g/m3 23/05/2017 15:00 
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.