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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)

 747 Carmarthen Road, Gendros - facade diffusion tube
2005
Oct 2005 51.10 µg/m3
Nov 2005 61.30 µg/m3
Dec 2005 57.20 µg/m3
Average 2005 56.53 µg/m3
2006
Jan 2006 55.20 µg/m3
Feb 2006 42.60 µg/m3
Mar 2006 42.00 µg/m3
Apr 2006 41.50 µg/m3
May 2006 50.30 µg/m3
Jun 2006 50.90 µg/m3
Jul 2006 52.50 µg/m3
Aug 2006 36.50 µg/m3
Sep 2006 48.20 µg/m3
Oct 2006 52.40 µg/m3
Nov 2006 58.30 µg/m3
Dec 2006 45.90 µg/m3
Average 2006 48.03 µg/m3
2007
Jan 2007 44.00 µg/m3
Feb 2007 57.10 µg/m3
Mar 2007 42.00 µg/m3
Apr 2007 55.50 µg/m3
May 2007 42.70 µg/m3
Jun 2007 43.20 µg/m3
Jul 2007 42.40 µg/m3
Aug 2007 42.90 µg/m3
Sep 2007 43.10 µg/m3
Oct 2007 49.60 µg/m3
Nov 2007 62.80 µg/m3
Dec 2007 58.30 µg/m3
Average 2007 48.63 µg/m3
2008
Jan 2008 51.30 µg/m3
Feb 2008 67.60 µg/m3
Mar 2008 47.70 µg/m3
Apr 2008 52.80 µg/m3
May 2008 49.40 µg/m3
Jun 2008 43.40 µg/m3
Jul 2008 43.90 µg/m3
Aug 2008 43.50 µg/m3
Sep 2008 56.60 µg/m3
Oct 2008 48.00 µg/m3
Nov 2008 32.70 µg/m3
Dec 2008 65.80 µg/m3
Average 2008 50.23 µg/m3
2009
Jan 2009 48.40 µg/m3
Feb 2009 68.00 µg/m3
Mar 2009 62.40 µg/m3
Apr 2009 73.70 µg/m3
Average 2009 63.13 µg/m3
2012
Jan 2012 56.00 µg/m3
Apr 2012 44.10 µg/m3
May 2012 46.70 µg/m3
Jun 2012 47.30 µg/m3
Jul 2012 36.20 µg/m3
Aug 2012 44.60 µg/m3
Average 2012 45.82 µg/m3
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