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Index Banded Annual Totals for Swansea:
LOW
158 days
MODERATE
41 days
HIGH
1 day
VERY HIGH
5 days

Exceedences

24 Hr Mean SO2 Exceedences
Total period : 27/07/2023 00:00 - 26/07/2024 24:00
Integration time : 24.0 Hours, Observation limit :1
  Swansea AURN Morriston Morfa St Thomas
  [] [ppb] [ppb] [ug/m3]
Mean 0.64
Max 70.42
Sdv 0.26
Coverage (%) 0.00 0.00 0.00 95.36
Observations 0 0 0 349
Geom. mean 0.99
Exceedance Limit 47.00 47.00 47.00 125.00
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 01/06/2024
Perc:99 % 6.36
Perc:99 % 6.36


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



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