E2 pH (6)
Station I1, 1972-1973
          Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec
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          7.2      -      7.2     8.2     7.9      -       -      8.0     8.0     8.2     8.0      -
Station I2, 1972-1973
          Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec
----------------------------------------------------------------------------------------------------------
          7.8      -      8.1     8.1     8.1      -       -      8.2     8.2     8.1     8.0      -
Station II2, 1972-1973
          Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec
----------------------------------------------------------------------------------------------------------
          7.8      -      7.8     7.5      -       -       -      8.0     8.2     8.5     8.2      -
Station III1, 1972-1973
          Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec
----------------------------------------------------------------------------------------------------------
          7.8      -      8.2     8.1     8.1      -       -      8.2      -       -       -       -
Station III2, 1972-1973
          Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec
----------------------------------------------------------------------------------------------------------
          8.1      -      8.1     8.2     8.2      -       -       -      8.0     8.3      -       -
Poseljani, 1972-1973
          Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec
----------------------------------------------------------------------------------------------------------
          8.2      -      8.2      -       -       -       -      8.0     8.0     8.1      -       -