Spatiotemporal hydro-chemical and isotopic dataset of the tropical Nyando river basin in Kenya.

This article presents hydro-chemical and isotopic (δN-, δO‒NO , δB data of water samples and potential nitrate sources from the Nyando river basin, a tributary of the Lake Victoria in Kenya. The data collection involved field sampling of water samples in 23 sampling stations spatially distributed in the basin during nine seasons from July/2016 to May/2018. The hydro-chemical data was generated from the Laboratory analysis of the water samples using the ion chromatogram.

Land use controls Kenyan riverine nitrate discharge into Lake Victoria - evidence from Nyando, Nzoia and Sondu Miriu river catchments.

Nitrate (NO) sources and discharge were investigated using isotope and hydrochemical analyses in three river catchments draining Lake Victoria basin, Kenya. Hierarchical cluster analysis grouped Nyando, Nzoia and Sondu Miriu River stations into clusters corresponding to major land use classes of the catchments. Mixed agriculture (MA) in Nyando showed higher NO compared to the other land uses.