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Articles by E.A. Moses
Total Records ( 3 ) for E.A. Moses
  E.A. Moses , V.O. Ogugbuaja , P.A. Onyeyili and J.C. Akan
  Organic composition and toxicity of dusts collected in and around Maiduguri metropolis were investigated. High performance liquid chromatographic technique was used to determine the presence of aromatic hydrocarbons (anthracene, naphthalene, benzene and pyridine) in the samples. Haematological parameters, Packed Cell Volume (PCV), White Blood Cell counts (WBC), Haemoglobin estimation (HB) and Red Blood Cell (RBC) counts were used as biomarkers to identify possible toxic effects of exposure to dust samples. Low concentrations (0.0157 ±0.002 and 0.0133 ±0.004 mg g-1) of anthracene and naphthalene were measured on the dust samples while benzene and pyridine were not detected. Intravenous and intratracheal administration of dust decreased significantly (p<0.05) the RBC, Hb and PCV in goats when compared to the control group. The values of WBC however increased when dust was administered intratracheally and intravenously. The result obtained do not suggest any evidence of substantial anthropogenic pollution of this environment
  J.C. Akan , E.A. Moses , V.O. Ogugbuaja and J. Abah
  The aim and objective of the study was to determined pollutant levels in tannery industrial effluent from kano metropolis, Nigeria. Effluents from five tannery industries were characterized and the major sources of industrial pollution determined. Levels of heavy metals (Cu, Zn, Co, Mn, Fe, Pb and Cr) were determined using Atomic absorption Spectrophotometric method, while pH, Eh, DO, TDS, Temperature, sulphate, nitrate and phosphate were also determined using standard procedure. The results of the study showed that effluent quality discharged between tanneries differed significantly. Effluent chromium concentrations varied between 1.02±0.13 to 1.56±0.06 mg L-1, which are above WHO and FEPA limit of 1.0 mg L-1. Hafawa Enterprise Tannery, Unique Leather Finishing had significantly high lead concentrations, while Great Northern Tannery could be a potential source of Iron contamination in this area. Mean levels of Zn for Tannorth Tannery Limited were above maximum permissible limits set by FEPA and WHO. Mean levels of sulphate, nitrate and dissolved Oxygen were also above maximum permissible limits for the entire tanneries studied. Mean values of pH total dissolved solid, phosphate, temperature, Cu, Co, Mn and Redox potential generally were below maximum and minimum permissible limits for effluent discharged into rivers. The monthly variations in the entire tannery fell within the range set up by FEPA and WHO for the discharged of tannery effluent into river. The study serves to generate relevant baseline information for Kano industrial estate.
  J.C. Akan , E.A. Moses and V.O. Ogugbuaja
  The uncontrolled releases of waste effluents to large water bodies have deleterious effects both on water quality and aquatic life. Kano, an industrial city in Nigeria has the largest number of tanneries in the country is facing the problems of impairment of water quality. Levels of heavy metals (Cu, Co, Zn, Mn, Pb, Fe and Cr) were determined using Atomic Absorption spectrophotometric methods. pH, Redox potential (Eh), Temperature, Dissolve Oxygen (DO), Total Dissolve Solid, sulphate, nitrate and phosphate were also determined. Results showed high levels of Cr (2.70±0.57 to 3.12±0.69 mg L-1), Fe (1.21±0.13 to 1.61±0.41 mg L-1) and these values were found to be significantly higher than the maximum permissible limits of FEPA (p<0.05). Levels of Mn, Cu, Zn, Pb and Co were within the minimum permissible limits for effluent discharged into rivers. Increases, in concentrations of heavy metals with distance from point source up to a distance of 400 metres were observed. While anion concentration decreased with distance from point source up to a distance of 400 m. Adherence to pollution control measures and effluent pre-treatment should be enforced in the industries.
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