Impact of agro-industrial activities on the water quality of River Nyando, Lake Victoria Basin, Kenya
Raburu, P. O.
Ministry of Water and Irrigation, Nairobi (Kenya)
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The impact of agro-industrial activities on the water quality within River Nyando, Lake Victoria Basin (Kenya) was studied at different hierarchical levels between August 1997 and June 1999. Triplicate water samples were collected on a monthly basis from various stations ranging from the source to the mouth of the river and analyzed for selected physical and chemical water quality parameters using standard analytical methods. Statistical analysis was performed using MINITAB and STATISTICA computer packages. Agricultural land use was found to be the major factor contributing to changes in water quality. Salinity and pH varied at river basin scale, turbidity, TDS and conductivity at catchment scale, while DO, alkalinity and pH at subcatchment and river reach scale. The nutrient loads increased downstream. Anthropogenic sources contribute to high levels of nutrients within the basin. The changes recorded in water quality along the river were comparable to the modified Index of Biotic Inte.....
JournalProceedings of the 11th World Lakes Conference - Volume 2
Spatial CoverageKenya, Nyando R.
Conference Name11th World Lakes Conference
Conference PlaceNairobi (Kenya)
CitationOdada, Eric & Olago, Daniel O. (Ed.) Proceedings of the 11th World Lakes Conference: vol. 2. p. 307-314
- Conference Papers