Selected Trace Elements in Domestic Water Boreholes and Their Implications on Human Health, in Huruma Estate, Eldoret Municipality, Uasin-Gishu County, KenyaReportar como inadecuado




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Traceelements constitute less than 1% of the rocks in the crust Stumm and Morgan,1991. In the human body, they constitute less than 100 mg-kg 0.01%. Theseelements are released to the environment naturally by weathering and volcanicactivities Flint and skinner, 1997. It has been observed that trace elementsare greatly absorbed and retained in the body when in liquid diet. Thisphenomenon also influences the risk to human health, especially of infants andchildren whose immature digestive system further promote absorption of toxicheavy metals. The study was based on the analysis of domestic borehole watersupplies in Huruma estate of Eldoret Municipality for selected trace elementsand their implications on human health. The boreholes were systematicallyselected for sampling points and trace elements, Cr, Cu and Se analyzed usingAAS. Statistical analysis for mean, standard deviation and confidence intervallimits was done using SPSS. The statistical t-test was used to test for significancedifferences at p = 0.05. The graphs were drawn using the Microsoft Excelpackage. The resulting data obtained from analysis were compared with WHO datafor drinking water. In the study, the mean values of the following parameterswere as follows: Chromium 17.9 μg-L, Copper 563 μg-L and Selenium 22.7 μg-L.There was a significant difference at 5% level of significance p = 0.000 inall the parameter values among the sampling points in Huruma estate. The abovemean values were far below the WHO recommended limits for drinking water. Itwas concluded that the borehole water from Huruma was fit for drinking andtherefore could not cause cancer and cardiovascular diseases. However, boreholewater should be used if other water sources tap water etc. were notavailable. All the industries near Huruma estate should carefully analyze andregularly monitor their liquid waste effluents to ensure that no harmfuldischarges get into the soil.

KEYWORDS

Trace Elements; Human Health; Chronic Exposure; Borehole; Non-Communicable Disease

Cite this paper

T. Ndwiga -Selected Trace Elements in Domestic Water Boreholes and Their Implications on Human Health, in Huruma Estate, Eldoret Municipality, Uasin-Gishu County, Kenya,- Journal of Environmental Protection, Vol. 5 No. 1, 2014, pp. 65-70. doi: 10.4236-jep.2014.51009.





Autor: Taratisio Ndwiga

Fuente: http://www.scirp.org/



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