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Index Banded Annual Totals for Swansea:
LOW
93 days
MODERATE
18 days
HIGH
1 day
VERY HIGH
4 days

Diffusion Tubes - Nitrogen Dioxide (NO2)

 1 Libanus Road, Gorseinon, Swansea - facaade diffusion tube
2012
Jul 2012 10.50 µg/m3
Aug 2012 11.80 µg/m3
Average 2012 11.15 µg/m3