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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)

 Age Concern 69 St Helens Road - facade diffusion tube
2008
Jul 2008 30.30 µg/m3
Aug 2008 28.60 µg/m3
Average 2008 29.45 µg/m3
2009
Jan 2009 7.60 µg/m3
Feb 2009 41.40 µg/m3
Apr 2009 51.30 µg/m3
Average 2009 33.43 µg/m3
2012
Jan 2012 45.90 µg/m3
Apr 2012 26.40 µg/m3
May 2012 34.30 µg/m3
Jun 2012 31.70 µg/m3
Jul 2012 21.30 µg/m3
Aug 2012 28.20 µg/m3
Average 2012 31.30 µg/m3
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