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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)

 38/40 Glyncollen Drive - facade diffusion tube
2008
Jul 2008 24.80 µg/m3
Aug 2008 17.50 µg/m3
Sep 2008 40.40 µg/m3
Oct 2008 38.10 µg/m3
Nov 2008 43.10 µg/m3
Dec 2008 49.90 µg/m3
Average 2008 35.63 µg/m3
2009
Jan 2009 41.10 µg/m3
Feb 2009 53.80 µg/m3
Mar 2009 40.20 µg/m3
Apr 2009 43.00 µg/m3
Average 2009 44.52 µg/m3
2012
Jan 2012 43.30 µg/m3
Apr 2012 36.00 µg/m3
May 2012 27.20 µg/m3
Jun 2012 21.20 µg/m3
Jul 2012 22.30 µg/m3
Aug 2012 23.90 µg/m3
Average 2012 28.98 µg/m3
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