Journal of Applied Environmental and Biological Sciences Assessment of Metals Levels in Cow Blood from Cow's Grazed around Zango, Zaria and Challawa Industrial Estate, Kano -Nigeria (original) (raw)

Abstract

The evaluation of metals levels in cow blood is important for assessing the potential effects of pollutants on grazing cattle and for quantifying contaminant intakes by humans. Hence Atomic Absorption Spectrophotometer (AAS) was used to determine trace and heavy metals of toxicological implications in cow blood. Six trace metals (Fe, Zn, Cu, Mn, Ni, Al) were found in a range between 0.18±0.10 to 36.62±7.71ppm and 0.20±0.06 to 35.11±14.78ppm in sample area A and B respectively. Three heavy metals (Cd, Pb, Cr) of toxicological implications were also found to range between 0.12±0.04 to 2.12±1.54 in area A and 0.17±0.14 to 2.81±0.90ppm in study area B. No statistically significant difference was observed between the two study areas for all the elements determined at 95%confidence levels. Except for Cu and Mn the values obtained were higher than the allowable limit for trace elements in blood.

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