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

Diffusion Tubes - Nitrogen Dioxide (NO2)

 Etype, westway - lamppost diffusion tube
2008
Jul 2008 27.80 µg/m3
Aug 2008 22.40 µg/m3
Sep 2008 45.50 µg/m3
Oct 2008 26.60 µg/m3
Nov 2008 47.70 µg/m3
Dec 2008 52.80 µg/m3
Average 2008 37.13 µg/m3
2009
Jan 2009 50.30 µg/m3
Feb 2009 51.90 µg/m3
Mar 2009 38.70 µg/m3
Apr 2009 52.20 µg/m3
Average 2009 48.28 µg/m3
2012
Jan 2012 53.80 µg/m3
Apr 2012 33.40 µg/m3
May 2012 34.90 µg/m3
Jun 2012 27.00 µg/m3
Jul 2012 24.20 µg/m3
Aug 2012 28.80 µg/m3
Average 2012 33.68 µg/m3
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