التراكم الحيوي للرصاص والكادميوم في بعض الأحياء البرية بوادي الشاطئ، ليبيا

Mohamed  A. Elssaidi; Hala Y. Mohamed; Thuria T. Mohamed

doi:10.59743/jmset.v6i2.41

Authors

Mohamed A. Elssaidi Environmental Sciences Department, Faculty of Engineering and Technical Sciences, Sebha University, Brack, Libya.
Hala Y. Mohamed General Sciences Department, Faculty of Engineering and Technical Sciences, Sebha University, Brack, Libya.
Thuria T. Mohamed General Sciences Department, Faculty of Engineering and Technical Sciences, Sebha University, Brack, Libya.

DOI:

https://doi.org/10.59743/jmset.v6i2.41

Keywords:

Heavy metals, Lead, Cadmium, Bioaccumulation, Wildlife, Food chain

Abstract

This paper aimed to estimate the most pollutant heavy metals (lead, cadmium) in wildlife (gerbils, hedgehogs, snakes, lizards, frogs, scorpions, wild pigeons, mice, rabbits, beetles, and hoopoe). The results showed that the highest concentrations of both elements were among carnivores where the accumulation of cadmium in the snake food chain was high. It was higher when fed on gerbils (6.95 mg/kg). Insect diets were poorly accumulated, with the highest accumulation of cadmium in hoopoe (0.69 mg/kg) through the food chain followed by hedgehog and lizard, which represented a secondary level. It was also found that the accumulation of cadmium at high concentration in the body of all wildlife studied, unlike lead, where the highest percentage in hoopoe (2.85 mg/kg) and wild pigeons (3.39 mg/kg) This series represents the third or fourth level in the food chain for insect predators. The lead accumulation was very weak as it was very low in the food chain for insect predators in all studied organisms where it was found that the concentration of lead in very little did not exceed (2 mg/kg).

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