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Index Banded Annual Totals for Swansea:
LOW
248 days
MODERATE
96 days
HIGH
2 days
VERY HIGH
0 days

Exceedences

24 Hr Mean SO2 Exceedences
Total period : 11/12/2017 00:00 - 11/12/2018 24:00
Integration time : 24.0 Hours, Observation limit :1
  Swansea AURN Morriston Morfa St Thomas
  [] [ppb] [ppb] [ug/m3]
Mean 2.43
Max 15.07
Sdv 0.12
Coverage (%) 0.00 0.00 0.00 93.17
Observations 0 0 0 341
Geom. mean 1.90
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 16/11/2018
Perc:99 % 12.96
Perc:99 % 12.96


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



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