Font size too small?   Increase Font size | Decrease font size | See other Accessibility Options.
Index Banded Annual Totals for Swansea:
LOW
252 days
MODERATE
93 days
HIGH
2 days
VERY HIGH
0 days

Exceedences

Nitrogen Dioxide Exceedences
Total period : 06/12/2019 15:00 - 13/12/2019 15:00
Integration time : 1.0 Hours, Observation limit :1
  Swansea AURN Morriston Morfa Hafod DOAS St Thomas DOAS
  [ppb] [ppb] [ppb] [ug/m3] [ug/m3]
Mean 9.57 32.59 38.64
Max 42.51 126.81 114.62
Sdv 0.76 2.37 1.74
Geom. mean 5.32 19.03 33.46
Exceedance Limit 105.00 105.00 105.00 200.00 200.00
Exceedance (%) 0.00 0.00 0.00 0.00 0.00
Exceedance Count 0 0 0 0 0
Exceedance (Hours) 0.00 0.00 0.00 0.00 0.00
Date of max 09/12/2019 11/12/2019 09/12/2019
Time of max 17:00:00 14:00:00 17:00:00
Perc:99.8 % 42.51 126.81 114.62


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



Related links: