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Articles by F.I. Abdulrahman
Total Records ( 3 ) for F.I. Abdulrahman
  J.C. Akan , F.I. Abdulrahman , J.T. Ayodele and V.O. Ogugbuaja
  Levels of Copper (Cu), Cobalt (Co), Zinc (Zn), Iron (Fe), Lead (Pb), Manganese (Mn), Chromium (Cr), as well as pH, redox potential (Eh), Dissolved Oxygen (DO), Total Dissolved Solid (TDS), temperature, nitrate, sulphate and phosphate were determined in River Challawa, Kaon State, Nigeria. These parameters were simultaneously monitored. Physio-chemical examination revealed that the levels of pH (6.81±0.10 and 10.23±0.32 mg L 1), Eh (-46.31.34 to -87.21.54m/v), TDS (40.33.24 to 70.18.40 mg L 1), temperature (8.20.14 to 12.80.24 C), sulphate (22.60.21 to 43.50.31 mg L 1) and nitrate (1.110.02 to 4.040.03 mg L 1) were below the maximum permissible limits set by WHO and FEPA for drinking water and aquatic ecosystem. Concentration of heavy metals; Cu, Co, Zn, Fe, Pb, Mn and Cr were significantly above the maximum allowable levels set by United State Environmental Protection Agency (USEPA) and WHO levels for drinking water and for protection of aquatic ecosystem. The levels of DO and phosphate in the water samples exceeded the Nigeria Federal Environmental Protection Agency (NFEPA) tolerance limits for drinking water and water meant for domestic uses. This may have deleterious effect on aquatic ecosystem and the health of the rural dweller that use the river water directly for domestic purposes without treatment.
  G.A. Dimari , F.I. Abdulrahman , J.C. Akan and V.O. Ogugbuaja
  Atmospheric air was collected using Absorption train method from Shukwari Ward of Maiduguri Metropolis, Nigeria between the periods of January to December, 2004 and was analyzed for nitrogen dioxide by colorimetric method. The sulphur dioxide ranged from 0.321-0.078082 g m 3. for day times hours (8:00am-5:0pm), while for night times it could also be observed that concentrations between the soft hours of 1:00-3:00 am were relatively stable for the period of analysis with the exception of December, May and June, 2004. The mean day times concentrations with error bars of NO2 ranged from 0.253 0.101-0.159 0.082 g m 3. The highest mean concentration was determined in March while the lowest was observed in December, 2004. The highest night time concentration peaked in June while the lowest was determined in November. Statistical data handling by regression analysis (p< 0.05) of day and night concentrations of NO2 showed no correlation (r = 0.4). From the results, the concentration of NO2 was within the World Health Organization and other national guideline values for clean air.
  J.C. Akan , V.O. Ogugbuaja , F.I. Abdulrahman and J.T. Ayodele
  Concentration of dissolved copper (Cu), cobalt (Co), zinc (Zn), iron (Fe), lead (Pb), manganese (Mn), chromium (Cr), as well as pH, redox potential (Eh), dissolved oxygen (DO), Total Dissolved Solid (TDS), temperature, nitrate, sulphate and phosphate were determined in River Challawa and tap water from Challawa, Sharada and Bompai industrial areas, Kano State, Nigeria. Samples were collected for a period fifteen weeks. River Challawa is the main water supply source for Kano town and numerous industries within this area. Apart from being a source of water supply, it serves as a sink for industrial and municipal wastes. These parameters were simultaneously monitored. Physico-chemical examination revealed that the levels of pH (6.81±0.10 to 10.23±0.32), Eh (-46.3±1.34 to -87.2±1.54 mV), TDS (40.3±3.24 to 70.1±8.40 mg L-1), temperature (8.2±0.14 to 12.8±0.24°C), sulphate (22.6±0.21 to 43.5±0.31 mg L-1) and nitrate (1.11±0.02 to 4.04±0.03 mg L-1) in River Challawa and tap water from Challawa, Sharada and Bompai industrial areas were below the maximum permissible limits set by WHO and Federal Environmental Protection Agency (FEPA) Nigeria for drinking water and aquatic ecosystem. Concentration of heavy metals; Cu, Co, Zn, Fe, Pb, Mn and Cr in River Challawa were significantly above the maximum allowable levels set by United State Environmental Protection Agency (USEPA) and WHO levels for drinking water and for protection of aquatic ecosystem, while for tap water the concentration of heavy metals were within safe limits. The levels of DO and phosphate in River Challawa exceeded the FEPA tolerance limits for drinking water and water meant for domestic uses. This may have deleterious effect on aquatic ecosystem and the health of the rural dwellers that use the river water directly for domestic purposes without treatment.
 
 
 
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