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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)

 6 De La Beche Road - facade diffusion tube
2007
Oct 2007 43.60 µg/m3
Nov 2007 37.10 µg/m3
Dec 2007 41.40 µg/m3
Average 2007 40.70 µg/m3
2008
Jan 2008 33.10 µg/m3
Feb 2008 44.30 µg/m3
Mar 2008 28.60 µg/m3
Apr 2008 31.90 µg/m3
May 2008 38.60 µg/m3
Jun 2008 23.10 µg/m3
Jul 2008 22.60 µg/m3
Aug 2008 19.90 µg/m3
Sep 2008 33.60 µg/m3
Oct 2008 33.70 µg/m3
Dec 2008 30.90 µg/m3
Average 2008 30.94 µg/m3
2009
Jan 2009 38.30 µg/m3
Feb 2009 34.70 µg/m3
Mar 2009 35.70 µg/m3
Apr 2009 42.90 µg/m3
Average 2009 37.90 µg/m3
2012
Jan 2012 40.00 µg/m3
Apr 2012 25.80 µg/m3
May 2012 26.60 µg/m3
Jun 2012 20.60 µg/m3
Jul 2012 20.60 µg/m3
Aug 2012 23.10 µg/m3
Average 2012 26.12 µg/m3
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