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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)

 932 Carmarthen Road, Fforestfach - facade diffusion tube
2005
Oct 2005 33.60 µg/m3
Nov 2005 40.40 µg/m3
Dec 2005 39.60 µg/m3
Average 2005 37.87 µg/m3
2006
Jan 2006 37.80 µg/m3
Feb 2006 36.50 µg/m3
Mar 2006 27.70 µg/m3
Apr 2006 27.00 µg/m3
May 2006 27.90 µg/m3
Jun 2006 27.80 µg/m3
Jul 2006 28.70 µg/m3
Aug 2006 20.50 µg/m3
Sep 2006 28.60 µg/m3
Oct 2006 30.60 µg/m3
Nov 2006 32.80 µg/m3
Dec 2006 27.60 µg/m3
Average 2006 29.46 µg/m3
2007
Jan 2007 25.10 µg/m3
Mar 2007 24.00 µg/m3
Apr 2007 28.90 µg/m3
May 2007 22.30 µg/m3
Jun 2007 27.90 µg/m3
Jul 2007 22.30 µg/m3
Aug 2007 22.10 µg/m3
Sep 2007 26.70 µg/m3
Oct 2007 41.80 µg/m3
Nov 2007 41.50 µg/m3
Dec 2007 31.30 µg/m3
Average 2007 28.54 µg/m3
2008
Jan 2008 27.80 µg/m3
Feb 2008 41.40 µg/m3
Mar 2008 26.70 µg/m3
Apr 2008 31.10 µg/m3
May 2008 32.70 µg/m3
Jun 2008 21.80 µg/m3
Jul 2008 21.40 µg/m3
Aug 2008 19.50 µg/m3
Sep 2008 31.60 µg/m3
Oct 2008 32.80 µg/m3
Dec 2008 42.20 µg/m3
Average 2008 29.91 µg/m3
2009
Jan 2009 37.00 µg/m3
Feb 2009 43.30 µg/m3
Mar 2009 30.10 µg/m3
Apr 2009 42.10 µg/m3
Average 2009 38.12 µg/m3
2012
Jan 2012 34.10 µg/m3
Apr 2012 24.40 µg/m3
May 2012 20.20 µg/m3
Jun 2012 20.40 µg/m3
Jul 2012 19.50 µg/m3
Aug 2012 21.20 µg/m3
Average 2012 23.30 µg/m3
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