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dc.contributor.authorNjogu, Paul Mwangi
dc.coverage.spatialKenya, Rift Valley, Naivasha L.en_US
dc.date.accessioned2015-06-25T12:21:49Z
dc.date.available2015-06-25T12:21:49Z
dc.date.issued2011
dc.identifier.urihttp://hdl.handle.net/1834/6850
dc.description.abstractAnthropogenic activities in the Lake Naivasha catchments pose serious environmental threats to sustainable freshwater ecosystem management. The future of the lake hangs on the balance of economic exploitation and sustainable watershed conservation. The current growth experienced in the chemical intensive flower industry, human settlements and power generation have led to chemical pollution, wetland reclamation and increased water abstraction volumes, which threaten the existence of the water body. Chemical drift during spray and washing of agrochemicals during the rainy season add the chemicals to water bodies. This study reports the findings of an environmental pollution assessment and environmental risks assessment posed by organochlorine pesticide residues and their metabolites in the Lake Naivasha basin during the period between 2008 and 2009. The objective of the study was to assess environmental pollution in reference to heavy metals, organochlorine pesticides in Lake Naivasha basin and to predict environmental risks of organochlorine pesticides on aquatic communities. Primary data was acquired through interviews, observations and sample whereas secondary data was obtained from published information. The data was analyzed statistically at p = 0.05 confidence level using significant T-Test, ANOVA and Dixon’s test. The concentrations of lead (Pb), cadmium (Cd), nickel (Ni), zinc (Zn), copper (Cu), p, p’- DDT, p, p’- DDE, p, p’- DDD, heptachlor, heptachlor epoxide, lindane, aldrin, dieldrin, endosulfan and methoxychlor in water column and three fish species; Tilapia, (Oreochromis leucosticus), Common carp, (Cyprinus carpio) and Mirror carp, (Cuprinus spectacularlus) from Lake Naivasha, Kenya were determined.en_US
dc.language.isoenen_US
dc.publisherJomo Kenyatta University of Agriculture and Technology, Nairobi (Kenya)en_US
dc.subject.otherCyprinus carpioen_US
dc.subject.otherOreochromis leucostictus
dc.subject.otherCuprinus spectacularlus
dc.titleAssessment of Pollution and Prediction of Environmental Risks of Organochlorine Pesticide Residues on Aquatic Communities in Lake Naivasha, Kenya.en_US
dc.typeThesis/Dissertationen_US
dc.description.degreePhDen_US
dc.format.pages193pp.en_US
dc.subject.asfaLake basinsen_US
dc.subject.asfaInland waters
dc.subject.asfaPollution effects
dc.subject.asfaEnvironmental impact
dc.subject.asfaPesticides
dc.subject.asfaInsecticides
dc.subject.asfaChemical pollutants
dc.subject.asfaChlorinated hydrocarbons
dc.subject.asfaDDT
dc.subject.asfaToxicants
dc.subject.asfaAnthropogenic factors
refterms.dateFOA2021-01-30T18:47:38Z


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