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Index Banded Annual Totals for Swansea:
LOW
102 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)

 12 Peniel Green Road, Llansamlet - facade diffusion tube
2005
Oct 2005 44.00 µg/m3
Nov 2005 44.60 µg/m3
Dec 2005 48.00 µg/m3
Average 2005 45.53 µg/m3
2006
Jan 2006 49.00 µg/m3
Feb 2006 45.30 µg/m3
Mar 2006 43.30 µg/m3
Apr 2006 43.90 µg/m3
May 2006 45.50 µg/m3
Jun 2006 41.70 µg/m3
Jul 2006 44.40 µg/m3
Aug 2006 29.50 µg/m3
Sep 2006 44.50 µg/m3
Oct 2006 45.20 µg/m3
Nov 2006 50.40 µg/m3
Dec 2006 49.10 µg/m3
Average 2006 44.32 µg/m3
2007
Jan 2007 36.40 µg/m3
Feb 2007 38.60 µg/m3
Mar 2007 35.30 µg/m3
Apr 2007 39.40 µg/m3
May 2007 36.50 µg/m3
Jun 2007 33.80 µg/m3
Jul 2007 35.00 µg/m3
Aug 2007 30.90 µg/m3
Sep 2007 35.60 µg/m3
Oct 2007 51.90 µg/m3
Nov 2007 47.30 µg/m3
Dec 2007 51.80 µg/m3
Average 2007 39.37 µg/m3
2008
Jan 2008 44.80 µg/m3
Feb 2008 56.60 µg/m3
Mar 2008 44.30 µg/m3
Apr 2008 44.70 µg/m3
May 2008 42.20 µg/m3
Jun 2008 36.00 µg/m3
Jul 2008 28.20 µg/m3
Aug 2008 35.40 µg/m3
Sep 2008 43.00 µg/m3
Oct 2008 51.20 µg/m3
Nov 2008 39.30 µg/m3
Dec 2008 47.00 µg/m3
Average 2008 42.73 µg/m3
2009
Jan 2009 53.30 µg/m3
Feb 2009 47.00 µg/m3
Mar 2009 48.90 µg/m3
Apr 2009 54.00 µg/m3
Average 2009 50.80 µg/m3
2012
Jan 2012 44.30 µg/m3
Apr 2012 30.40 µg/m3
May 2012 32.40 µg/m3
Jun 2012 29.70 µg/m3
Jul 2012 36.70 µg/m3
Aug 2012 39.50 µg/m3
Average 2012 35.50 µg/m3
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