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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)

 33 Glyncollen Drive - facade diffusion tube
2008
Jul 2008 22.50 µg/m3
Aug 2008 16.50 µg/m3
Sep 2008 33.80 µg/m3
Oct 2008 25.60 µg/m3
Nov 2008 43.50 µg/m3
Dec 2008 37.90 µg/m3
Average 2008 29.97 µg/m3
2009
Jan 2009 38.90 µg/m3
Feb 2009 48.30 µg/m3
Mar 2009 44.90 µg/m3
Apr 2009 29.70 µg/m3
Average 2009 40.45 µg/m3
2012
Jan 2012 36.00 µg/m3
Apr 2012 31.50 µg/m3
May 2012 28.60 µg/m3
Jun 2012 21.60 µg/m3
Jul 2012 19.20 µg/m3
Aug 2012 19.90 µg/m3
Average 2012 26.13 µg/m3
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