Lake MashuASI-22

Title : Transparency (1984-1985, 1990,..2010), pH, SS, DO, COD, TN and TP (1984-1985)

Classification of data : E1-E8 Typical Water Quality Parameters

File Name : asi-22-e.txt

            E. LAKE WATER QUALITY (Q)


E1 TRANSPARENCY [m]

Month   	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
-----------------------------------------------------------------------------------------------------------------
Year

2010*           26.4    26      -       27.5    25.8    -       23.8    19.4    -       19.6    -       -
2005*           -       -       -       -       -       -       -       14      -       15.9    -       -
2000*           -       -       -       -       -       24      27      17.2    -       -       -       -
1995*           -       -       -       -       -       -       -       22.5    -       -       -       -
1990*           -       -       -       -       -       -       21.7    -       -       -       -       -
1984-1985       -	-	-	-	-	25.4	-	23.3	22.0	23.3	-	-
------------------------------------------------------------------------------------------------------------------
* Lake Mashu Long-term Environmental Monitoring, Center for Global Environmental Research, National Institute for
  Environmental Studies



SITE: Station 1
YEAR: 1984-1985

E2 pH
Month   	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
------------------------------------------------------------------------------------------------------------------
Depth [m]
   0	        -	-	-	-	-	7.2	-	7.4	8.0	7.4	-	-
  30	        -	-	-	-	-	7.2	-	7.3	7.6	7.2	-	-


E3 SS [mg l-1]
Month   	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
------------------------------------------------------------------------------------------------------------------
Depth [m]
   0	        -	-	-	-	-	<1	-	<1	<1	<1	-	-
  30	        -	-	-	-	-	<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	        -	-	-	-	-	12.0	-	9.3	9.2	10.1	-	-
  30	        -	-	-	-	-	12.2	-	12.8	10.8	12.5	-	-


E5 COD [mg l-1]
Month   	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
------------------------------------------------------------------------------------------------------------------
Depth [m]
   0	        -	-	-	-	-	<0.5	-	<0.5	<0.5	0.8	-	-
  30	        -	-	-	-	-	<0.5	-	<0.5	<0.5	0.8	-	-


E6 CHLOROPHYLL CONCENTRATION [micro l-1]
Month   	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
------------------------------------------------------------------------------------------------------------------
Depth [m]
   0	        -	-	-	-	-	0.26	-	0.35	0.32	0.22	-	-


E7 NITROGEN CONCENTRATION
Total-N [mg l-1]

Station 1, 1984-1985
Month   	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
------------------------------------------------------------------------------------------------------------------
Depth [m]
   0	        -	-	-	-	-	<0.05	-	<0.05	<0.05	<0.05	-	-
  30	        -	-	-	-	-	<0.05	-	<0.05	<0.05	<0.05	-	-


E8 PHOSPHORUS CONCENTRATION
Total-P [mg l-1]

Month   	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
------------------------------------------------------------------------------------------------------------------
Depth [m]
   0	        -	-	-	-	-	<.003	-	.003	<.003	<.003	-	-
  30	        -	-	-	-	-	<.003	-	<.003	<.003	<.003	-	-