Lake IkedaASI-30

Title : Transparency, pH, SS, DO, COD, TN, and TP (1985)

Classification of data : E1-E8 Typical Water Quality Parameters

File Name : asi-30-e.txt

            E1 TRANSPARENCY [m]

SITE: Station 1
YEAR: 1985


E2 pH

Month     Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec
-----------------------------------------------------------------------------------------------------------
Depth [m]
  0.5      -      7.2      -      7.9      -      8.8      -       -      8.6     8.1      -      7.4
   15      -      7.2      -      7.8      -      7.6      -       -      7.8     8.0      -      7.3
   30      -      7.2      -      7.4      -      7.1      -       -      7.0     7.1      -      6.8
  100      -      7.2      -      7.2      -      7.1      -       -      7.0     7.1      -      6.9
  200      -      7.3      -      7.1      -      7.1      -       -      7.0     7.1      -      6.8


E3 SS [mg l-1]

Month     Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec
-----------------------------------------------------------------------------------------------------------
Depth [m]
  0.5      -       <1      -       1       -       2       -       -       <1      1       -       <1
   15      -       <1      -       1       -       2       -       -       1       1       -       1
   30      -       <1      -       <1      -       <1      -       -       <1      <1      -       <1
  100      -       <1      -       <1      -       <1      -       -       <1      <1      -       <1
  200      -       <1      -       <1      -       <1      -       -       <1      <1      -       <1


E4 DO [mg l-1]

Month     Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec
-----------------------------------------------------------------------------------------------------------
Depth [m]
  0.5      -      7.7      -       -       -      9.0      -       -      7.8     8.9      -      9.7
   15      -      7.3      -      10.8     -      10.4     -       -      6.9     8.9      -      9.7
   30      -      7.0      -      10.5     -      7.7      -       -      6.7     6.0      -      4.7
  100      -      7.6      -      8.6      -      7.4      -       -      7.2     7.8      -      6.5
  200      -      6.8      -      7.6      -      7.1      -       -      6.6     6.2      -      5.8


E5 COD [mg l-1]

Determined by KMnO4 method.

Month     Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec
-----------------------------------------------------------------------------------------------------------
Depth [m]
  0.5      -      1.1      -      1.9      -      2.7      -       -      2.5     2.8      -      2.2
   15      -      1.2      -      1.3      -      2.6      -       -      2.9     2.7      -      2.4
   30      -      1.2      -      1.0      -      0.9      -       -      1.0     0.9      -      1.2
  100      -      1.2      -      0.9      -      0.8      -       -      0.8     0.9      -      0.8
  200      -      1.1      -      0.8      -      0.8      -       -      0.8     0.7      -      0.8


E6 CHLOROPHYLL CONCENTRATION [micro l-1]

Month     Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec
-----------------------------------------------------------------------------------------------------------
Depth [m]
  0.5      -      1.7      -      3.6      -      2.4      -       -      0.5     2.6      -      2.7
   15      -      2.0      -      1.9      -      11.0     -       -      2.2     2.7      -      2.2
   30      -      2.4      -      0.9      -      0.5      -       -      1.1     1.0      -      1.9
  100      -       -       -      0.2      -      0.1      -       -      0.1     0.1      -      0.1
  200      -      1.8      -      0.3      -      0.0      -       -      0.2     0.1      -      0.1


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      -      0.22     -      0.25     -      0.25     -       -      0.38    0.36     -      0.33
   15      -      0.23     -      0.22     -      0.35     -       -      0.55    0.35     -      0.32
   30      -      0.23     -      0.22     -      0.23     -       -      0.26    0.26     -      0.30
  100      -      0.23     -      0.23     -      0.24     -       -      0.26    0.23     -      0.24
  200      -      0.24     -      0.24     -      0.26     -       -      0.27    0.26     -      0.26


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      -      .004     -      .007     -      .008     -       -      .003    .005     -      .006
   15      -      .004     -      .005     -      .007     -       -      .008    .005     -      .007
   30      -      .004     -      .003     -      .002     -       -      .002    .002     -      .003
  100      -      .004     -      .002     -      .002     -       -      .003    .002     -      .002
  200      -      .003     -      .003     -      .002     -       -      .003    .003     -      .003