Evaluation of Metallic Trace Elements Content (Cadmium, Copper, Zinc and Lead) in the Water of Lake Azili in the Municipality of Zangnanado (Centre-Benin)

This study focuses on the assessment of level contamination in metallic trace elements (cadmium, copper, zinc and lead) waters lake Azili municipality Zangnanado. The methodology adopted to achieve these results is method molecular absorption spectrophotometry. Four sites were sampled at beginning November 2020 (period long dry season). obtained show that copper content varies between 1.04 mg/l 1.67 mg/l. 0.2 0.62 those lead recorded are all above 0.05 As for their cadmium concentration, they 0.001 These from water analysis sources this type due one hand human activities (dumps household waste, use motorized boats) others other contributions effluents carrying pesticides. quality Lake therefore influenced by various found there. pollution even if it not yet alarming time our study. Under conditions, nothing done mitigate it, will be critical over time.