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

Diffusion Tubes - Nitrogen Dioxide (NO2)

 9 Gower Road - facade diffusion tube
2008
Jul 2008 34.40 µg/m3
Aug 2008 38.70 µg/m3
Sep 2008 47.30 µg/m3
Oct 2008 55.10 µg/m3
Nov 2008 46.60 µg/m3
Dec 2008 43.00 µg/m3
Average 2008 44.18 µg/m3
2009
Jan 2009 46.50 µg/m3
Feb 2009 50.70 µg/m3
Mar 2009 52.50 µg/m3
Apr 2009 52.10 µg/m3
Average 2009 50.45 µg/m3
2012
Jan 2012 51.20 µg/m3
Apr 2012 34.00 µg/m3
May 2012 41.00 µg/m3
Jun 2012 39.10 µg/m3
Jul 2012 33.10 µg/m3
Aug 2012 32.50 µg/m3
Average 2012 38.48 µg/m3
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