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Index Banded Annual Totals for Swansea:
LOW
136 days
MODERATE
47 days
HIGH
6 days
VERY HIGH
16 days

Exceedences

24 Hr Mean SO2 Exceedences
Total period : 23/07/2020 00:00 - 23/07/2021 24:00
Integration time : 24.0 Hours, Observation limit :1
  Swansea AURN Morriston Morfa St Thomas
  [] [ppb] [ppb] [ug/m3]
Mean 2.12
Max 15.17
Sdv 0.11
Coverage (%) 0.00 0.00 0.00 88.52
Observations 0 0 0 324
Geom. mean 1.58
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 13/02/2021
Perc:99 % 9.15
Perc:99 % 9.15


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



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