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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)

 41 Station Road, Fforestfach - facade diffusion tube
2005
Oct 2005 37.90 µg/m3
Nov 2005 46.00 µg/m3
Dec 2005 44.20 µg/m3
Average 2005 42.70 µg/m3
2006
Jan 2006 42.60 µg/m3
Feb 2006 39.80 µg/m3
Mar 2006 29.00 µg/m3
Apr 2006 32.20 µg/m3
May 2006 31.30 µg/m3
Jun 2006 38.10 µg/m3
Jul 2006 35.50 µg/m3
Aug 2006 23.40 µg/m3
Sep 2006 29.40 µg/m3
Oct 2006 38.30 µg/m3
Nov 2006 38.80 µg/m3
Dec 2006 34.50 µg/m3
Average 2006 34.41 µg/m3
2007
Feb 2007 41.50 µg/m3
Mar 2007 30.00 µg/m3
Apr 2007 39.00 µg/m3
May 2007 26.00 µg/m3
Jun 2007 31.10 µg/m3
Jul 2007 21.50 µg/m3
Aug 2007 27.80 µg/m3
Sep 2007 31.40 µg/m3
Oct 2007 48.00 µg/m3
Nov 2007 44.40 µg/m3
Dec 2007 42.30 µg/m3
Average 2007 34.82 µg/m3
2008
Jan 2008 29.40 µg/m3
Feb 2008 48.20 µg/m3
Mar 2008 32.50 µg/m3
Apr 2008 37.80 µg/m3
May 2008 42.40 µg/m3
Jun 2008 27.60 µg/m3
Jul 2008 24.50 µg/m3
Aug 2008 22.20 µg/m3
Sep 2008 40.50 µg/m3
Oct 2008 39.10 µg/m3
Nov 2008 40.90 µg/m3
Dec 2008 39.20 µg/m3
Average 2008 35.36 µg/m3
2009
Jan 2009 31.80 µg/m3
Feb 2009 49.30 µg/m3
Mar 2009 47.40 µg/m3
Apr 2009 42.70 µg/m3
Average 2009 42.80 µg/m3
2012
Jan 2012 46.40 µg/m3
Apr 2012 27.20 µg/m3
May 2012 25.60 µg/m3
Jun 2012 23.00 µg/m3
Jul 2012 21.50 µg/m3
Aug 2012 19.80 µg/m3
Average 2012 27.25 µg/m3
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