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Index Banded Annual Totals for Swansea:
LOW
77 days
MODERATE
6 days
HIGH
1 day
VERY HIGH
4 days

Current Readings for Cwm Level Park Ozone and NOx: air quality data

Monitoring station: Cwm Level Park Ozone and NOx
Last updated: GMT 28 Mar 2024 14:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NOx 17.95 µg/m3 67.18 µg/m3 28/03/2024 04:00 
NO 5.34 µg/m3 25.59 µg/m3 28/03/2024 04:00 
NO2 9.79 µg/m3 38.68 µg/m3 26/03/2024 20:00 
O3 52.80 µg/m3 94.10 µg/m3 27/03/2024 07:00 
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.