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    Appraisal of Heavy Metals in the Fish Sarotherodon galilaeus and Sarotherodon melanotheron from Alaro Stream in Ibadan, Nigeria
    (2017) Tyokumbur,E.T; Umma,B.S
    An appraisal was carried out on the heavy metals in the fish Sarotherodon melanotheron and Sarotherodon galilaeus from Alaro Stream in Ibadan. The study was carried out because fish is a major source of affordable protein for the ever growing global human population. The concentration of heavy metals in the aquatic ecosystem as a result of human activities at any given time portend a health risk for consumers of fish and its products. A total of fifty fish comprising S. melanotheron (25) and S. galileaus (25) were collected from the study area. Dissected and pulverized fish organ samples were acid- digested in Teflon tubes for analyses using the Inductively Coupled Plasma Mass Spectrometer (ICP-MS). The mean Ni in the liver, gut and fins of both fish exceeded the World Health Organization (WHO) limit guideline (0.07ppm). All the mean Se concentration in the organs of the two fish were all above the WHO limit guideline of 0.04ppm. With the exception of the muscle (0.01ppm) in S. galilaeus, all the other mean V concentration in the organs of the two fish were higher than the limit guideline of 0.02ppm while there is no current value for Mn and Co. The study shows that organs of S. galilaeus and S. melanotheron had V, Ni and Se above the World Health Organization’s limit guidelines thereby making the fish unfit for human consumption as long as the effluents discharged into the stream remain untreated. Continuous biomonitoring of the aquatic ecosystem for heavy metal pollution is recommended.
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    Environmental impact assessment of the potability of water from bore-hole, hand dug well and stream at Itagunmodi gold deposits Southwestern, Nigeria using FORTRAN algorithm for monitoring leachates and interpreting physicochemical data of contaminants in groundwater
    (Academic Journals, 2015-01) Adetoyinbo, A. A.; Adelegan, F. T.; Bello, A. K.
    This study determined the quality of surface and underground water in Itagunmodi in Nigeria. Physicochemical analysis of water samples collected within gold mining area and the water consumed in the town was carried out to determine their hygienic conditions. The major objective of this study was assessment degree of groundwater pollution around the mining sites and the available water consumed in the town. Four major sources of water were analyzed. Several physical and chemical parameters were tested in roundwater, these include pH, total solids (TS), total dissolved solids (TDS), conductivity, total alkalinity, total hardness (TH), chloride (Cl-1), sulphur (S), heavy metals (Pb, Zn, Cu), major cation (Mg). The results show that the parameters are within the standard acceptable levels which are required for drinking water adapted from World Health Organization. The pH of the samples was suitable for drinking according to the World Health Organization standard. For a safe drinking water, the pH should be between 6.5 and 8.5); it can be said that the water quality of the samples are fairly good based on the monitored elements and physicochemical characteristics.