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

Diffusion Tubes - Nitrogen Dioxide (NO2)

 5 Vivian Road - facade diffusion tube
2008
Jul 2008 20.40 µg/m3
Aug 2008 18.10 µg/m3
Sep 2008 29.30 µg/m3
Oct 2008 29.10 µg/m3
Nov 2008 21.30 µg/m3
Dec 2008 28.00 µg/m3
Average 2008 24.37 µg/m3
2009
Jan 2009 39.60 µg/m3
Feb 2009 32.70 µg/m3
Mar 2009 30.90 µg/m3
Apr 2009 39.40 µg/m3
Average 2009 35.65 µg/m3
2012
Jan 2012 35.30 µg/m3
Apr 2012 18.80 µg/m3
Jun 2012 21.80 µg/m3
Jul 2012 17.80 µg/m3
Aug 2012 18.40 µg/m3
Average 2012 22.42 µg/m3
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