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Index Banded Annual Totals for Swansea:
LOW
105 days
MODERATE
14 days
HIGH
1 day
VERY HIGH
5 days
annual air quality totals for all Swansea monitoring stations

Diffusion Tubes - Nitrogen Dioxide (NO2)

 120 Samlet Road - facade diffusion tube
2008
Jul 2008 27.50 µg/m3
Aug 2008 28.20 µg/m3
Sep 2008 39.70 µg/m3
Oct 2008 44.60 µg/m3
Nov 2008 42.70 µg/m3
Dec 2008 44.30 µg/m3
Average 2008 37.83 µg/m3
2009
Jan 2009 49.40 µg/m3
Feb 2009 52.40 µg/m3
Mar 2009 47.10 µg/m3
Apr 2009 44.40 µg/m3
Average 2009 48.33 µg/m3
2012
Jan 2012 44.60 µg/m3
Apr 2012 27.20 µg/m3
May 2012 27.90 µg/m3
Jun 2012 25.80 µg/m3
Jul 2012 22.80 µg/m3
Aug 2012 27.40 µg/m3
Average 2012 29.28 µg/m3
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