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Index Banded Annual Totals for Swansea:
LOW
254 days
MODERATE
65 days
HIGH
4 days
VERY HIGH
1 day

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

Monitoring station: Cwm Level Park Ozone and NOx
Last updated: GMT 20 Nov 2017 19:00
Measurement Current Value Highest Reading Date and Time of
Highest Reading
NOx 4.15 g/m3 51.33 g/m3 19/11/2017 09:00 
NO 0.34 g/m3 21.31 g/m3 19/11/2017 09:00 
NO2 3.62 g/m3 34.80 g/m3 19/11/2017 16:00 
O3 50.60 g/m3 73.70 g/m3 20/11/2017 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.