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Articles by M.L. Balarabe
Total Records ( 2 ) for M.L. Balarabe
  U.A. Awode , A. Uzairu , M.L. Balarabe , O.J. Okunola and Adewusi S.G.
  The  levels  and  distribution  of  Pb,  Cr  and  Cu  in  the  soils  and  pepper (Capsicum annuum) on the bank of River Challawa were investigated. The metal levels, expressed in mg kg-1 Dry Weights (DW) in the ranges: 60.00-143.30 for Pb (mean 114.79), 104.20-230.00 for Cr (mean 181.66) and 58.30-207.50 for Cu (mean 248.59) are obtained in soil samples; while 11.33-27.00 for Pb (mean 18.90), 10.40-35.10 for Cr (mean 20.04) and 7.56-21.07 for Cu (mean 14.52) are obtained in pepper samples. The relationship of metals was also examined for dependency upon some soil factor through the use of correlation analysis. Also, the results show the presence of correlation between metals in soil and pepper, which indicate possible transfer of these metals into the food chain. This has indirectly caused the accumulated of these heavy metals in the agricultural soils through irrigation and subsequently in the pepper planted in them, such that their concentrations in the soils and pepper (except Cu in pepper) exceed the recommended permissible limits.
  U.A. Awode , A. Uzairu , M.L. Balarabe , G.F.S. Harrisson and O.J. Okunola
  Assessment of metal-contaminated soils depends on how one can predict the bioavailability of trace and toxic metals in soil and transfer to the human food chain. To predict the uptake of Cd, Zn and Ni by vegetable (pepper) grown on agricultural soil on the bank of river Challawa. 32 pepper and 16 soil samples were collected from areas irrigated with wastewater as study samples and for comparative purposes, agricultural soil samples irrigated with fresh river water, was collected as control samples. The samples were analyzed by flame atomic absorption spectrophotometer. The validation of the sample procedure was assessed by using spiking method. The level of Cd ranged from 0.94-5.27 mg kg-1 and 0.25-1.07 mg kg-1 Dry Weights (DW) for soil and pepper samples respectively. Mean concentration of Zn ranged 123.30-205.00 mg kg-1 and 10.40-35.10 mg kg-1 for samples in similar order as above while that of Ni ranged from 39.30-99.50 mg kg-1 and 2.73-6.90 mg kg-1 also in the same order of samples as mention above. The metals were examined for dependency upon some soil factor through the use of correlation analysis, pH, Organic Matter (OM), sand fractions and clay fractions correlated positively with Cd, Zn and Ni indicating that these factors greatly control the concentration of these metals in the soils. Metal transfer factors from soil to vegetable are found less significant for Cd, Zn and Ni.
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