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Index Banded Annual Totals for Swansea:
LOW
51 days
MODERATE
11 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 08 Mar 2021 07:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NOx 64.98 g/m3 72.19 g/m3 07/03/2021 10:00 
NO 25.62 g/m3 25.62 g/m3 08/03/2021 07:00 
NO2 25.83 g/m3 49.94 g/m3 06/03/2021 19:00 
O3 2.55 g/m3 77.59 g/m3 06/03/2021 14:00 
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.