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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)

 18 Chemical Road, Morriston - facade diffusion tube
2012
Jan 2012 43.80 µg/m3
Apr 2012 24.30 µg/m3
May 2012 28.70 µg/m3
Jun 2012 21.00 µg/m3
Jul 2012 20.00 µg/m3
Aug 2012 20.60 µg/m3
Average 2012 26.40 µg/m3
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