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Index Banded Annual Totals for Swansea:
LOW
100 days
MODERATE
19 days
HIGH
1 day
VERY HIGH
5 days
annual air quality totals for all Swansea monitoring stations

Diffusion Tubes - Nitrogen Dioxide (NO2)

 18a Newton Road, Mumbles - facade diffusion tube
2012
Jan 2012 48.80 µg/m3
Apr 2012 44.50 µg/m3
May 2012 38.00 µg/m3
Jun 2012 31.20 µg/m3
Jul 2012 28.90 µg/m3
Aug 2012 27.90 µg/m3
Average 2012 36.55 µg/m3
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