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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)

 860 Carmarthen Road - facade diffusion tube
2008
Sep 2008 38.90 µg/m3
Oct 2008 44.20 µg/m3
Nov 2008 48.30 µg/m3
Dec 2008 56.90 µg/m3
Average 2008 47.08 µg/m3
2009
Jan 2009 37.00 µg/m3
Feb 2009 5.50 µg/m3
Mar 2009 50.20 µg/m3
Apr 2009 49.60 µg/m3
Average 2009 35.57 µg/m3
2012
Jan 2012 47.60 µg/m3
Apr 2012 30.90 µg/m3
May 2012 26.50 µg/m3
Jun 2012 24.10 µg/m3
Jul 2012 24.80 µg/m3
Aug 2012 26.00 µg/m3
Average 2012 29.98 µg/m3
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