Browsing by Author "L.L., Cheruiyot"

Now showing 1 - 1 of 1
  • Publication
    Publication
    Effects of Zinc, Lead and Copper Concentration Levels on the Distribution of Macro Invertebrates: A case Study of River Sosian, Eldoret Town, Kenya
    (journal of the kenya chemical society, 2004-08) Osano, Aloys; L.L., Cheruiyot
    The relationship between zinc and copper concentration levels and the distribution of benthic macro-invertebrates in river Sosiani, Eldoret has been investigated. Atomic Absorption Spectrophotometry (AAS) and the Dip-net method have established the concentration of zinc and copper and the number of macro-invertebrates respectively. The study showed that the concentration of both copper and zinc were higher than the threshold levels and that the macro-invertebrate species were fewer in the more polluted regions of the river. Thus, zinc and copper concentration levels play a role in the distribution of macro-invertebrates.