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Index Banded Annual Totals for Swansea:
LOW
161 days
MODERATE
39 days
HIGH
1 day
VERY HIGH
5 days
annual air quality totals for all Swansea monitoring stations

Diffusion Tubes - Nitrogen Dioxide (NO2)

 2 Ffordd Cynore, Fforestfach - facade diffusion tube
2005
Oct 2005 29.90 µg/m3
Nov 2005 36.40 µg/m3
Dec 2005 35.60 µg/m3
Average 2005 33.97 µg/m3
2006
Jan 2006 35.20 µg/m3
Feb 2006 30.10 µg/m3
Mar 2006 22.20 µg/m3
Apr 2006 20.40 µg/m3
May 2006 20.60 µg/m3
Jun 2006 21.60 µg/m3
Jul 2006 22.40 µg/m3
Aug 2006 14.90 µg/m3
Sep 2006 18.80 µg/m3
Oct 2006 29.30 µg/m3
Nov 2006 32.30 µg/m3
Dec 2006 26.60 µg/m3
Average 2006 24.53 µg/m3
2007
Jan 2007 22.90 µg/m3
Feb 2007 32.20 µg/m3
Mar 2007 22.60 µg/m3
Apr 2007 26.50 µg/m3
May 2007 17.80 µg/m3
Jun 2007 19.40 µg/m3
Jul 2007 17.90 µg/m3
Aug 2007 13.00 µg/m3
Sep 2007 19.60 µg/m3
Oct 2007 35.70 µg/m3
Nov 2007 32.80 µg/m3
Dec 2007 45.60 µg/m3
Average 2007 25.50 µg/m3
2008
Jan 2008 26.50 µg/m3
Mar 2008 23.50 µg/m3
Apr 2008 24.60 µg/m3
May 2008 27.20 µg/m3
Jun 2008 11.30 µg/m3
Jul 2008 19.70 µg/m3
Sep 2008 25.40 µg/m3
Oct 2008 30.00 µg/m3
Nov 2008 27.20 µg/m3
Dec 2008 32.30 µg/m3
Average 2008 24.77 µg/m3
2009
Jan 2009 38.00 µg/m3
Feb 2009 30.70 µg/m3
Mar 2009 31.50 µg/m3
Apr 2009 35.50 µg/m3
Average 2009 33.93 µg/m3
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