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Index Banded Annual Totals for Swansea:
LOW
72 days
MODERATE
26 days
HIGH
4 days
VERY HIGH
7 days

Exceedences

15 Min SO2 Exceedences
Total period : 12/04/2021 16:00 - 19/04/2021 16:00
Integration time : 15.0 Minutes, Observation limit :1
  Swansea AURN Morriston Morfa St Thomas
  [] [ppb] [ppb] [ug/m3]
Mean 3.82
Max 31.71
Sdv 0.15
Coverage (%) 0.00 0.00 0.00 100.00
Geom. mean 2.89
Exceedance Limit 100.00 100.00 100.00 266.00
Exceedance (%) 0.00 0.00 0.00 0.00
Exceedance Count 0 0 0 0
Exceedance (Hours) 0.00 0.00 0.00 0.00
Date of max 19/04/2021
Time of max 08:00:00
Perc:99.9 % 28.64
Perc:99.9 % 28.64


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



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