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Index Banded Annual Totals for Swansea:
LOW
88 days
MODERATE
16 days
HIGH
1 day
VERY HIGH
4 days

Current Readings for St Thomas DOAS: air quality data

Monitoring station: St Thomas DOAS
Last updated: GMT 18 Apr 2024 05:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NO2 70.53 µg/m3 86.84 µg/m3 17/04/2024 04:00 
SO2 0.00 µg/m3 2.79 µg/m3 16/04/2024 14:00 
O3 16.24 µg/m3 110.08 µg/m3 16/04/2024 14:00 
Benzene 0.00 µg/m3 1.74 µg/m3 17/04/2024 16:00 
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.