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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)

 EasyTan 4 Dillwyn Street - facade diffusion tube
2008
Jul 2008 35.00 µg/m3
Aug 2008 39.50 µg/m3
Sep 2008 58.50 µg/m3
Oct 2008 77.10 µg/m3
Nov 2008 92.40 µg/m3
Dec 2008 103.90 µg/m3
Average 2008 67.73 µg/m3
2009
Jan 2009 78.00 µg/m3
Feb 2009 84.90 µg/m3
Mar 2009 78.10 µg/m3
Apr 2009 54.30 µg/m3
Average 2009 73.82 µg/m3
2012
Jan 2012 69.50 µg/m3
Apr 2012 39.70 µg/m3
May 2012 43.50 µg/m3
Jun 2012 43.50 µg/m3
Jul 2012 37.90 µg/m3
Aug 2012 36.10 µg/m3
Average 2012 45.03 µg/m3
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