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Index Banded Annual Totals for Swansea:
LOW
177 days
MODERATE
53 days
HIGH
4 days
VERY HIGH
24 days

Exceedences

Benzene Exceedences
Total period : 20/09/2022 00:00 - 20/09/2023 24:00
Integration time : 24.0 Hours, Observation limit :1
  Hafod DOAS St Thomas DOAS
  [ug/m3] [g/m3]
Mean 3.26 2.01
Max 16.27 4.68
Sdv 0.06 0.02
Geom. mean 3.10 1.97
Date of max 23/08/2023 01/12/2022
Time of max 00:00:00 00:00:00


All data supplied are non-validated and for information only.



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