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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)

 20 Bryn Road, Pontardulais - facade diffusion tube
2012
Jan 2012 21.00 µg/m3
Apr 2012 9.30 µg/m3
May 2012 9.10 µg/m3
Jun 2012 8.40 µg/m3
Jul 2012 8.70 µg/m3
Aug 2012 9.70 µg/m3
Average 2012 11.03 µg/m3
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