Lake ToyaASI-17

Title : Transparency, pH, SS, DO, COD, TN, and TP (1981-1983

Classification of data : E1-E8 Typical Water Quality Parameters

File Name : asi-17-e.txt

            E1 TRANSPARENCY [m]

SITE: Station 1
YEAR: 1981-1983 (average)

Month     Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec
           -       -       -       10      11      13      20      -       13      8       -       -


E2 pH

Month     Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec
--------------------------------------------------------------------------------------------------------
Depth [m]
  0.5      -       -       -      6.5     6.5     6.6     6.6      -      6.8     6.4      -       -
   5       -       -       -      6.4     6.6     6.7     6.6      -      6.7     6.5      -       -


E3 SS [mg l-1]

Month     Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec
--------------------------------------------------------------------------------------------------------
Depth [m]
  0.5      -       -       -      <1.0    1.0     1.0     1.0      -      1.0     3.0      -       -
   5       -       -       -      1.0     <1.0    1.0     <1.0     -      1.0     2.0      -       -


E4 DO [mg l-1]

Month     Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec
--------------------------------------------------------------------------------------------------------
Depth [m]
  0.5      -       -       -       12      11      10     8.4      -      9.3     9.8      -       -
   5       -       -       -       12      11      11     9.8      -      9.3     9.8      -       -


E5 COD [mg l-1]

Month     Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec
--------------------------------------------------------------------------------------------------------
Depth [m]
  0.5      -       -       -      <0.5    <0.5    <0.5    0.7      -      0.7     1.1      -       -
   5       -       -       -      <0.5     0.6     0.7    0.7      -      0.9     1.0      -       -


E7 NITROGEN CONCENTRATION

Total-N [mg l-1]

Month     Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec
--------------------------------------------------------------------------------------------------------
Depth [m]
  0.5      -       -       -      0.32    0.29    0.33    0.30     -      0.37    0.28     -       -


E8 PHOSPHORUS CONCENTRATION

Total-P [mg l-1]

Month     Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec
--------------------------------------------------------------------------------------------------------
Depth [m]
  0.5      -       -       -     <.005   <.005   <.005   <.005     -     <.005   <.005     -       -