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Index Banded Annual Totals for Swansea:
LOW
days
MODERATE
days
HIGH
days
VERY HIGH
days
annual air quality totals for all Swansea monitoring stations

Diffusion Tubes - Nitrogen Dioxide (NO2)

 79 St Teilo Street, Pontardulais - facade diffusion tube
2012
Jan 2012 37.80 µg/m3
Apr 2012 23.50 µg/m3
May 2012 19.60 µg/m3
Jun 2012 17.50 µg/m3
Jul 2012 15.30 µg/m3
Aug 2012 16.60 µg/m3
Average 2012 21.72 µg/m3
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