Parameter	Uganda 1960	Uganda 1990	Kenya 1990
NH4 (ppm: Epil. Hypol.)		0.028 0.056 - 0.12	0.008 - 0.013 0.021 - 0.152
NO3 (ppm)	0.00 - 0.01	0.011 - 0.084	0.01 - 0.03
SRP (ppm)	0.091 - 0.50	0.012 - 0.043	0.004 - 0.073
TP (ppm)		0.062 - 0.124	0.07 - 0.103
TN (ppm)		0.336 - 0.448	0.44 - 1.16
TN/TP (Wt/Wt)		3.2 - 9.0	4.7 - 18.5
<4.0ppm DO Depth (m)	40	23	23
Silica (ppm)	4.2 - 8.4	0.01 - 2.5
Chlorophyll (µg/L)	2 - 4	10 - 22
Primary Production (mgO2/m3)	100 - 130	180 - 600
Secchi Depth	2.5	1.2	1.8
Euphotic Zone	0 - 15	0 - 7.5
Dominant algae	Diatoms	Cyanobacteria	Cyanobacteria