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Index Banded Annual Totals for Swansea:
LOW
106 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)

 Breast Screening Centre 24 Alexandra Road - facade diffusion tube
2008
Jul 2008 26.60 µg/m3
Aug 2008 24.60 µg/m3
Sep 2008 39.80 µg/m3
Oct 2008 32.70 µg/m3
Nov 2008 36.20 µg/m3
Dec 2008 44.40 µg/m3
Average 2008 34.05 µg/m3
2009
Jan 2009 36.00 µg/m3
Feb 2009 44.00 µg/m3
Mar 2009 40.80 µg/m3
Apr 2009 50.10 µg/m3
Average 2009 42.72 µg/m3
2012
Jan 2012 38.20 µg/m3
Apr 2012 26.90 µg/m3
May 2012 32.80 µg/m3
Jun 2012 34.20 µg/m3
Jul 2012 26.80 µg/m3
Aug 2012 30.90 µg/m3
Average 2012 31.63 µg/m3
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