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Index Banded Annual Totals for Swansea:
LOW
93 days
MODERATE
18 days
HIGH
1 day
VERY HIGH
4 days
annual air quality totals for all Swansea monitoring stations

Diffusion Tubes - Nitrogen Dioxide (NO2)

 15 Gower Road, Sketty - facade diffusion tube
2005
Oct 2005 68.50 µg/m3
Nov 2005 58.30 µg/m3
Dec 2005 64.60 µg/m3
Average 2005 63.80 µg/m3
2006
Jan 2006 60.00 µg/m3
Feb 2006 61.10 µg/m3
Mar 2006 53.30 µg/m3
Apr 2006 66.90 µg/m3
May 2006 59.40 µg/m3
Jun 2006 64.50 µg/m3
Jul 2006 51.20 µg/m3
Aug 2006 43.80 µg/m3
Sep 2006 60.20 µg/m3
Oct 2006 67.30 µg/m3
Average 2006 58.77 µg/m3
2007
Jan 2007 46.20 µg/m3
Feb 2007 63.60 µg/m3
Mar 2007 50.70 µg/m3
Apr 2007 63.50 µg/m3
May 2007 53.10 µg/m3
Jun 2007 64.20 µg/m3
Jul 2007 41.70 µg/m3
Aug 2007 50.60 µg/m3
Sep 2007 50.50 µg/m3
Oct 2007 79.40 µg/m3
Dec 2007 68.50 µg/m3
Average 2007 57.45 µg/m3
2008
Jan 2008 64.40 µg/m3
Feb 2008 79.30 µg/m3
Mar 2008 48.50 µg/m3
Apr 2008 60.80 µg/m3
May 2008 60.50 µg/m3
Jun 2008 49.30 µg/m3
Jul 2008 55.00 µg/m3
Aug 2008 53.00 µg/m3
Sep 2008 57.30 µg/m3
Oct 2008 72.50 µg/m3
Nov 2008 64.50 µg/m3
Dec 2008 54.00 µg/m3
Average 2008 59.93 µg/m3
2009
Jan 2009 73.00 µg/m3
Feb 2009 69.20 µg/m3
Mar 2009 71.20 µg/m3
Apr 2009 76.60 µg/m3
Average 2009 72.50 µg/m3
2012
Jan 2012 71.50 µg/m3
Apr 2012 47.40 µg/m3
May 2012 57.30 µg/m3
Jun 2012 46.00 µg/m3
Jul 2012 46.10 µg/m3
Aug 2012 53.40 µg/m3
Average 2012 53.62 µg/m3
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