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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)

 Argos/Uniterian Church, High Street - Lamppost diffusion tube
2008
Jul 2008 42.80 µg/m3
Aug 2008 40.90 µg/m3
Sep 2008 57.90 µg/m3
Oct 2008 52.90 µg/m3
Nov 2008 36.80 µg/m3
Dec 2008 64.10 µg/m3
Average 2008 49.23 µg/m3
2009
Jan 2009 60.20 µg/m3
Feb 2009 66.10 µg/m3
Mar 2009 68.40 µg/m3
Apr 2009 65.90 µg/m3
Average 2009 65.15 µg/m3
2012
Jan 2012 59.50 µg/m3
Apr 2012 44.20 µg/m3
Jun 2012 41.20 µg/m3
Jul 2012 34.40 µg/m3
Aug 2012 43.00 µg/m3
Average 2012 44.46 µg/m3
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