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Index Banded Annual Totals for Swansea:
LOW
31 days
MODERATE
11 days
HIGH
5 days
VERY HIGH
6 days

Exceedences

24 Hr Mean SO2 Exceedences
Total period : 22/02/2016 00:00 - 21/02/2017 24:00
Integration time : 24.0 Hours, Observation limit :1
  Swansea AURN Morriston Morfa St Thomas
  [] [ppb] [ppb] [ug/m3]
Mean 1.87
Max 16.08
Sdv 0.12
Coverage (%) 0.00 0.00 0.00 98.09
Observations 0 0 0 359
Geom. mean 1.19
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 27/01/2017
Perc:99 % 11.67
Perc:99 % 11.67


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



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