E. LAKE WATER QUALITY (Q)

SITE: Lake centre
YEAR: 1981-1985

E2 pH
Month   	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
-----
Depth [m]
  0.2	        9.2	9.0	9.0	9.4	8.8	8.4	8.9	9.0	9.1	9.0	9.1	9.2

E3 SS [mg l-1]
Depth [m]	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
  0.2	        43	40	48	53	66	59	42	56	73	50	52	53

E4 DO [mg l-1]
Depth [m]	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
  0.2	        16	17	16	14	9.6	8.6	11	9.3	11	12	14	14

E5 COD [mg l-1]
Determined by KMnO4 method.
Depth [m]	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
  0.2	        24	26	25	23	22	21	18	23	26	19	20	22

E6 CHLOROPHYLL CONCENTRATION [micro l-1]
Depth [m]	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
  0.2	        430	370	270	400	470	450	200	220	450	340	440	390

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

Depth [m]	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
  0.2	        7.50	8.34	7.70	5.73	5.52	5.33	3.96	3.49	5.17	4.79	5.74	5.90

E8 PHOSPHORUS CONCENTRATION
Total-P [mg l-1]
Depth [m]	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
  0.2	        0.74	0.93	0.62	0.52	0.53	0.48	0.37	0.68	0.71	0.44	0.35	0.46