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Index Banded Annual Totals for Swansea:
LOW
98 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)

 7 Gower Road - facade diffusion tube
2007
Oct 2007 77.60 µg/m3
Nov 2007 71.80 µg/m3
Dec 2007 75.20 µg/m3
Average 2007 74.87 µg/m3
2008
Jan 2008 66.30 µg/m3
Feb 2008 83.30 µg/m3
Mar 2008 55.80 µg/m3
Apr 2008 64.10 µg/m3
May 2008 64.50 µg/m3
Jun 2008 45.30 µg/m3
Jul 2008 50.90 µg/m3
Aug 2008 51.20 µg/m3
Sep 2008 67.80 µg/m3
Oct 2008 73.30 µg/m3
Nov 2008 68.10 µg/m3
Dec 2008 68.60 µg/m3
Average 2008 63.27 µg/m3
2009
Jan 2009 62.70 µg/m3
Feb 2009 67.60 µg/m3
Mar 2009 61.20 µg/m3
Apr 2009 72.80 µg/m3
Average 2009 66.08 µg/m3
2012
Jan 2012 77.70 µg/m3
Apr 2012 46.80 µg/m3
May 2012 52.40 µg/m3
Jun 2012 43.70 µg/m3
Jul 2012 40.80 µg/m3
Aug 2012 33.20 µg/m3
Average 2012 49.10 µg/m3
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