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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)

 L/Post outside Orchard St Clinic, 21 Orchard Street - Lamppost diffusion tube
2008
Jul 2008 49.50 µg/m3
Aug 2008 51.30 µg/m3
Sep 2008 56.50 µg/m3
Oct 2008 65.90 µg/m3
Nov 2008 61.30 µg/m3
Dec 2008 61.60 µg/m3
Average 2008 57.68 µg/m3
2009
Jan 2009 52.50 µg/m3
Feb 2009 59.60 µg/m3
Mar 2009 58.80 µg/m3
Apr 2009 63.60 µg/m3
Average 2009 58.62 µg/m3
2012
Jan 2012 44.30 µg/m3
Apr 2012 44.10 µg/m3
May 2012 47.80 µg/m3
Jun 2012 45.80 µg/m3
Jul 2012 41.40 µg/m3
Aug 2012 43.20 µg/m3
Average 2012 44.43 µg/m3
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