Show simple item record

dc.contributor.authorP.O. Otieno, P.O. Owuor, J.O. Lalah, K.W. Schramm, G. Pfizer
dc.date.accessioned2020-07-28T12:10:45Z
dc.date.available2020-07-28T12:10:45Z
dc.date.issued2012
dc.identifier.urihttps://repository.maseno.ac.ke/handle/123456789/1635
dc.description.abstractChlorpyrifos ethyl was found to be widely distributed in water and sediment in Lake Naivasha. Higher levels were reported in sediment (11.2–30.0 ng g-1 dry weight (dw) in wet season than in dry season (4.7–17.4 ng g-1 dw). The mean concentration of chlorpyrifos ethyl in water in wet season ranged between 8.8 and 26.6 lg L-1 and decreased to between below detection limit to 14.0 lg L-1 in dry season. On average, higher concentrations of chlorpyrifos ethyl were observed in sediment than water samples. Statistical analysis revealed a significant difference in concentration between the seasons, and a significant interaction between seasons and mean concentrations at p B 0.05. However, levels of diazinon and carbofuran were below the detection limit in all the samples analyzed. Notably, levels of chlorpyrifos ethyl were higher than the maximum allowable limits (0.1 lg L-1 ) recommended by European Union for drinking water and general water quality criterion for protection of freshwater water organisms (0.083 lg L-1 ).en_US
dc.publisherSpringeren_US
dc.subjectLake Naivasha Pesticides Horticultural farming Water Sedimenten_US
dc.titleSpatial distribution and temporal trend in concentration of carbofuran, diazinon and chlorpyrifos ethyl residues in sediment and water in Lake Naivasha, Kenyaen_US
dc.typeArticleen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record