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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)

 18A St Telo Street, Pontardulais - facade diffusion tube
2012
Apr 2012 21.40 µg/m3
May 2012 23.50 µg/m3
Jun 2012 25.90 µg/m3
Jul 2012 23.60 µg/m3
Aug 2012 27.50 µg/m3
Average 2012 24.38 µg/m3
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