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

Exceedences

24 Hr Mean SO2 Exceedences
Total period : 25/04/2023 00:00 - 24/04/2024 24:00
Integration time : 24.0 Hours, Observation limit :1
  Swansea AURN Morriston Morfa St Thomas
  [] [ppb] [ppb] [ug/m3]
Mean -0.20
Max 8.31
Sdv 0.07
Coverage (%) 0.00 0.00 0.00 99.73
Observations 0 0 0 365
Geom. mean 0.65
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 27/04/2023
Perc:99 % 5.16
Perc:99 % 5.16


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



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