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Index Banded Annual Totals for Swansea:
LOW
254 days
MODERATE
65 days
HIGH
4 days
VERY HIGH
1 day

Exceedences

24 Hr Mean SO2 Exceedences
Total period : 19/11/2016 00:00 - 19/11/2017 24:00
Integration time : 24.0 Hours, Observation limit :1
  Swansea AURN Morriston Morfa St Thomas
  [] [ppb] [ppb] [ug/m3]
Mean 2.13
Max 16.03
Sdv 0.12
Coverage (%) 0.00 0.00 0.00 98.36
Observations 0 0 0 360
Geom. mean 1.53
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 % 10.29
Perc:99 % 10.29


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



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