School of Environmental Sciences

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Browsing School of Environmental Sciences by Author "John Didacus Njoku"

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    Correlates in groundwater quality parameters and textural classes of soils in a peri-industrial district of the Nigerian Delta Region
    (Researchgate, 2012) Dike Henry Ogbuagu; John Didacus Njoku; Atulegwu Patrick Uzoije; Joseph Ikechukwu Nwachukwu; Tochi Ezechi Ebe
    This study investigated the physicochemical status of groundwaters of the oil-rich Ekakpamre community in Ughelli, Nigeria. Ten borehole water samples located about 1 km apart and soil samples around them were collected and analyzed by standard methods. Clay, sand and silt compositions in overlaying soils appeared to influence the DO (r=-0.999), TPH & toluene (r=0.998, each), and K+ ion (r=-0.999) levels in groundwaters at P<0.05. Three PCs which accounted for 100% variability in the original 27 variables formed the extraction solution and were most correlated with Cr (0.995), Pb (0.989) and PO42- ions (0.947). Though the high compositions of clay (72.67 ± 2.33%) and low compositions of sand (24.33 ± 2.60%) in the study indicates slight possibility of migration of surface pollutants to aquifers, the exceedances of Pb and Cd levels over regulatory limits portends public health hazards to consumers of groundwaters in the area.