Fresh cow's milk as an indicator of heavy metals pollution around the environment
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Bioaccumulation, heavy metals, cow's milk
Abstract
The current study aimed to measure the concentration of heavy metals in cows' milk on different farms in Sebha. The farms were divided into two groups. The first group includes 7 farms located near the main road, while the second group includes 7 farms located outside the main road and works as a control group. Seven heavy metals (iron, cobalt, cadmium, nickel, lead, zinc, and copper) were measured using an atomic absorber. The results of the current study showed that the average concentration of heavy metals in the first group was (0.336, 37.500, 81.351, 19.389, 74.244, 50.3070, 0.320 mg / L), while in the second group, it was (0.311, 40.071, 68.857, 17.569, 46.557, 0.193, 0.266. The results of this study showed that there were no statistically significant differences compared to the control group. On the other hand, a significant increase (0.05 ≥ P) was observed in the levels of elemental lead. We conclude from this study that cows' milk may be a biological indicator of environmental pollution. Moreover, this indicator may be considered a risk factor that indicates that heavy metals have a bioaccumulation property.
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