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Index Banded Annual Totals for Swansea:
LOW
130 days
MODERATE
40 days
HIGH
1 day
VERY HIGH
5 days

Current Readings for Hafod OPSIS DOAS: air quality data

Monitoring station: Hafod OPSIS DOAS
Last updated: GMT 24 Jun 2024 14:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO 0.00 g/m3 0.00 g/m3 24/06/2024 14:00 
NO2 9.37 g/m3 70.59 g/m3 24/06/2024 12:00 
O3 38.35 g/m3 70.03 g/m3 23/06/2024 00:00 
Benzene 0.00 g/m3 12.83 g/m3 23/06/2024 06:00 
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.