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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)

 72 Gower Road - facade diffusion tube
2008
Jul 2008 26.30 µg/m3
Aug 2008 25.20 µg/m3
Sep 2008 40.00 µg/m3
Oct 2008 39.60 µg/m3
Nov 2008 25.10 µg/m3
Dec 2008 49.70 µg/m3
Average 2008 34.32 µg/m3
2009
Jan 2009 41.50 µg/m3
Feb 2009 54.90 µg/m3
Mar 2009 39.40 µg/m3
Apr 2009 37.60 µg/m3
Average 2009 43.35 µg/m3
2012
Jan 2012 43.90 µg/m3
Apr 2012 27.00 µg/m3
May 2012 25.10 µg/m3
Jun 2012 30.00 µg/m3
Jul 2012 23.90 µg/m3
Aug 2012 23.00 µg/m3
Average 2012 28.82 µg/m3
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