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Index Banded Annual Totals for Swansea:
LOW
239 days
MODERATE
56 days
HIGH
12 days
VERY HIGH
25 days

Exceedences

15 Min SO2 Exceedences
Total period : 21/11/2021 06:00 - 28/11/2021 06:00
Integration time : 15.0 Minutes, Observation limit :1
  Swansea AURN Morriston Morfa St Thomas
  [] [ppb] [ppb] [ug/m3]
Mean 1.64
Max 5.76
Sdv 0.04
Coverage (%) 0.00 0.00 0.00 83.93
Geom. mean 1.41
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 22/11/2021
Time of max 18:45:00
Perc:99.9 % 5.70
Perc:99.9 % 5.70


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



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