E4 DO [mg l-1]

Metangula for 1 year
Depth [m]  Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
  0-100     7      8      8      7      8      7      -      -      -      -      8      7
   200      5      5      6      5      5      6      5      5      6      6      6      5
  >200   Anoxic conditions