Assessment of Levels, Speciation, and Toxicity of Trace Metal Contaminants in Selected Shallow Groundwater Sources, Surface Runoff, Wastewater, and Surface Water from Designated Streams in Lake Victoria Basin, Uganda

Table 9

A summary of the percentage of samples of surface water from selected streams and waterways in Lake Victoria basin, Uganda, with mean levels of major elements and other parameters of surface water from selected streams and waterways in Lake Victoria basin, Uganda, above and below the WHO guidelines and Ugandan standards.

Element	EC	Na	Mg	Al	K	Ca	Mn	Fe
Springs above Ugandan guidelines	53.5	—	6.7	26.7	—	13.3	13.3	6.7
Springs below Ugandan guidelines	46.7	—	93.3	73.3	—	86.7	86.7	93.3
Springs above WHO guidelines	53.5	33.3	13.3	33.3	53.5	0	80	93.3
Springs below WHO guidelines	46.7	66.7	86.7	66.7	46.7	100	20	6.7