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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)

 99 Courtney Street, Manselton - facade diffusion tube
2012
Jan 2012 42.70 µg/m3
Apr 2012 30.30 µg/m3
May 2012 23.20 µg/m3
Jun 2012 20.00 µg/m3
Jul 2012 19.60 µg/m3
Aug 2012 14.30 µg/m3
Average 2012 25.02 µg/m3
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