Lake SuwaASI-31

Title : Transparency, pH, SS, DO, COD, Chlorophyll, TN, TP (2015 and 1983-1985)

Classification of data : E1-E8 Typical Water Quality Parameters

File Name : asi-31-e.txt

            E. LAKE WATER QUALITY

SITE: Lake Center
YEAR: FY2015

E1 TRANSPARENCY [m](8)
Month   	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec     Jan     Feb     Mar
--------------------------------------------------------------------------------------------------------------
                1.3     1.0     1.1     1.0     0.9     0.9     1.0     1.1     1.5     3.0     1.8     1.9


E2 pH (8)
Month   	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec     Jan     Feb     Mar
--------------------------------------------------------------------------------------------------------------
Depth [m]
 0.5            7.1     9.6     9.6     9.1     9.5     9.1     8.8     8.1     7.8     7.6     7.5     8.2
 5.3            6.9     8.6     7.9     8.5     7.4     7.4     7.9     7.6     7.3     7.6     7.3     7.9


E3 SS [mg l-1]
Month   	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec     Jan     Feb     Mar
--------------------------------------------------------------------------------------------------------------
Depth [m]
 0.5           12.0    18.0     7.0    13.5     9.0    15.0    15.5    13.5     5.5     2.5     6.0     3.0
 5.3           14.0    32.5     7.0    13.5     9.5    10.0    25.0    12.5     7.5     3.0     5.5     4.0


E4 DO [mg l-1]
Month   	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec     Jan     Feb     Mar
--------------------------------------------------------------------------------------------------------------
Depth [m]
 0.5          10.0      9.9     9.7     9.4    10.0    11.0    10.5     9.4    10.0    11.0    11.5     12.0
 3.5          10.0      8.0     1.8     5.2     1.0     6.0     8.3     7.9     9.9    11.0    12.0     11.5


E5 COD [mg l-1]
Month   	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec     Jan     Feb     Mar
--------------------------------------------------------------------------------------------------------------
Depth [m]
 0.5           3.6     4.8     5.1     6.3     8.3     7.8     5.9     3.9     3.3     2.6     3.0     2.7
 3.5           3.8     5.5     3.9     4.7     4.4     3.4     5.7     4.5     3.0     2.6     3.0     2.8


E7 NITROGEN CONCENTRATION (8)
Total-N [mg l-1]
Month   	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec     Jan     Feb     Mar
--------------------------------------------------------------------------------------------------------------
Depth [m]
 0.5          0.92     0.70    0.77    0.85    0.88    1.2     0.77    0.47    0.60    0.55     1.3     0.91
 5.3          1.0      1.2     1.2     0.80    0.99    1.0     0.87    0.58    0.66    0.61     1.2     0.97



E8 PHOSPHORUS CONCENTRATION (8)
Total-P [mg l-1]
Month   	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec     Jan     Feb     Mar
--------------------------------------------------------------------------------------------------------------
Depth [m]
 0.5          0.052   0.054   0.052    0.062   0.049   0.075   0.070   0.050   0.034   0.023   0.047   0.030
 5.3          0.067   0.10    0.068    0.054   0.11    0.071   0.080   0.059   0.037   0.032   0.048   0.034







SITE: Station 1
YEAR: 1983-1985

E1 TRANSPARENCY [m](8)
Month   	Jan	Feb	Mar*	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
--------------------------------------------------------------------------------------------------------------
                 -	-	1.5	1.6	1.5	1.4	0.80	0.60	0.52	0.74	1.2	1.5
* 1984-1985.

E2 pH (8)
Month   	Jan	Feb	Mar*	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
--------------------------------------------------------------------------------------------------------------
Depth [m]
 0.5	         -	-	8.3	8.1	8.2	7.4	9.6	9.4	8.6	8.4	8.0	7.9
 5	         -	-	8.2	7.7	7.7	7.1	8.0	6.7	6.8	7.6	7.5	7.9
* 1984-1985.

E3 SS [mg l-1](8)
Month   	Jan	Feb	Mar*	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
--------------------------------------------------------------------------------------------------------------
Depth [m]
 0.5	         -	-	11	7	5	7	21	19	25	15	10	8
 5	         -	-	7	5	5	8	9	12	17	14	11	9
* 1984-1985.

E4 DO [mg l-1](8)
Month   	Jan	Feb	Mar*	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
--------------------------------------------------------------------------------------------------------------
Depth [m]
 0.5	         -	-	12	11	9.7	9.4	13.7	12	8.7	9.0	9.5	11
 5	         -	-	13	9.7	7.0	5.2	6.1	2.6	4.5	7.6	9.4	11
* 1984-1985.

E5 COD [mg l-1](8)
Determined by KMnO4 method.
Month   	Jan	Feb	Mar*	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
--------------------------------------------------------------------------------------------------------------
Depth [m]
 0.5	         -	-	5.6	3.6	3.8	4.4	8.4	8.1	11.9	6.5	4.2	4.4
 5	         -	-	3.6	2.7	3.6	3.7	3.7	4.8	6.9	4.5	4.2	4.4
* 1984-1985.

E6 CHLOROPHYLL CONCENTRATION [micro l-1](8)
Month   	Jan	Feb	Mar*	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
--------------------------------------------------------------------------------------------------------------
Depth [m]
 0.5	         -	-	59	33	24	23	90	193	101	39	36	54
 5	         -	-	41	17	32	14	26	18	28	25	38	45
* 1984-1985.

E7 NITROGEN CONCENTRATION (8)
Total-N [mg l-1]

Month   	Jan	Feb	Mar*	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
--------------------------------------------------------------------------------------------------------------
Depth [m]
 0.5	         -	-	0.69	1.5	1.0	0.80	1.8	2.8	1.4	1.5	0.94	0.59
 5	         -	-	1.2	1.4	1.2	0.94	0.98	1.4	0.97	1.3	1.0	0.76
* 1984-1985.

E8 PHOSPHORUS CONCENTRATION (8)
Total-P [mg l-1]

Month   	Jan	Feb	Mar*	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
--------------------------------------------------------------------------------------------------------------
Depth [m]
 0.5	         -	-	.097*	.047	.053	.062	.10	.19	.18	.090	.059	.059
 5	         -	-	.010	.050	.066	.070	.064	.091	.15	.089	.068	.059
* 1984-1985.