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您的检索式：作者名="Albert GETABU"
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| 1 | Electrical-hydraulic conductivity model for a weatheredfractured aquifer system of Olbanita, Lower Baringo Basin, Kenya Rift显示文摘Groundwater yield in the Kenya Rift is highly unsustainable owing to geological variability.In this study,field hydraulic characterization was performed by using geoelectric approaches.The relations between electrical-hydraulic(eh)conductivities were modeled hypothetically and calibrated empirically.Correlations were based on the stochastic models and field-scale hydraulic parameters were contingent on pore-level parameters.By considering variation in pore-size distributions over eh conduction interval,the relations were scaled-up for use at aquifer-level.Material-level electrical conductivities were determined by using Vertical Electrical Survey and hydraulic conductivities by analyzing aquifer tests of eight boreholes in the Olbanita aquifer located in Kenya rift.VES datasets were inverted by using the computer code IP2Win.The main result is that ln T=0.537(ln Fa)+3.695;the positive gradient indicating eh conduction through pore-surface networks and a proxy of weathered and clayey materials.An inverse(1/F-K)correlation is observed.Hydraulic parameters determined using such approaches may possibly contribute significantly towards sustainable yield management and planning of groundwater resources. | Benjamin SOSI Justus BARONGO Albert GETABU Samson MAOBE | 2019 | Journal of Groundwater Science and Engineering2019，7，4： | 0 |
| 2 | Organochlorine Contaminants in Nile Tilapia, Oreochromis niloticus (Linnaeus 1758) in Densely Populated Areas of South-Western Kenya显示文摘Concentrations of OCP(Organochlorine Pesticide)residues were determined in cultured Nile tilapia(Oreochromis niloticus)fish in target stations within 1st order wetland of River Kuja,Kenya,between February-November,2017.The aim was to assess the residue levels in wild and pond cultured fish within a heavily populated agricultural area of South Western Kenya.Biota samples were analysed for selected HCHs(Hexachlorocyclohexane)isomers,DDT(Dichlorodiphenyltrichloroethane)and metabolites and cyclodienes pesticide residues using GC-ECD(Gas Chromatography Equipped with Electron Capture Detector).Most of OCPs observed were BDL(Below Detection Limit)to detectable levels.Larger percentages(>50%)of DDTs and HCHs were BDL and exhibited consistency,with significant(p<0.05)differences in mean contamination levels in fish within the wetland,with average muscle tissue pesticides concentrate ranging between 0.229-2.541mg/kg for Nile tilapia.Most dominant isomer in target species was Lindane(g-HCH)(3.417±0.983mg/kg)and Endosulfans.Mean Endosulfan sulfate was 2.499±0.071mg/kg d.w.and most frequently detected,and Methoxychlor(2.235±1.459mg/kg),respectively.Mean Aldrin and Dieldrin was 2.028 and 0.574mg/kg d.w.Concentration for DDT and its metabolites was 0.27-3.71mg/kg for p,p’-DDE(DichlorodiphenylDichloroEthene),BDL-1.098 for p,p’-DDD(DichloroDiphenylDichloroEthane),and 0.105-3.518mg/kg for p,p’-DDT with significant differences in mean values and ranges whose levels were below the WHO(World Health Organization)maximum acceptable thresholds of 0.2,2,20 and 5.0mg/kg in fish and sea food.Interventions and monitoring need up-scaling in minimizing public health risks posed by consumption and exposure. | Joseph Nyaundi Albert Getabu Job Mwamburi James Onchieku Zachary Kinaro George Ogendi Jared Babu Nicholas Gichuru | 2020 | Journal of Environmental Science and Engineering(B)2020，9，4： | 0 |
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