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Index Banded Annual Totals for Swansea:
LOW
161 days
MODERATE
39 days
HIGH
1 day
VERY HIGH
5 days
annual air quality totals for all Swansea monitoring stations

Diffusion Tubes - Nitrogen Dioxide (NO2)

 Near Crosing, Thomas William Court, High Street - façade diffusion tube
2012
Jan 2012 55.20 µg/m3
Apr 2012 40.10 µg/m3
May 2012 34.30 µg/m3
Jun 2012 27.70 µg/m3
Jul 2012 29.20 µg/m3
Aug 2012 34.20 µg/m3
Average 2012 36.78 µg/m3
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