Assessment of toxicity of LOKPODJI, AGBOKOU and ACCRON TOKPA sediments then cytogenotoxicity of the fishes Parachana Africana

Abstract

The chemical pollution of our rivers (lakes and lagoons) by domestic and industrial waste creates everyday significant damage on the environment. This environmental pollution has harmful consequences on the quality of our life. The analyses of toxicity made on the sediments of the sites of LOKPODJI, AGBOKOU and ACCRON TOKPA showed that the average contents of heavy metals like zinc, copper, cadmium, and lead varied within site. These chemical pollutants pollute the watery environment and dangerously destroy the watery life by contaminating the species halieutics like shrimps, fish, crabs and the other species watery. The analyses of cytogenotoxicity made on the fish fished in our lagoons showed that heavy metals quoted previously are found according to variable concentrations in the various parts of these fishes. The indices mitotic and the percentages of aberrations obtained showed that these fishes had their genetic systems contaminated by the chemical pollutants present in our rivers. This cytogenotoxic pollution of the rivers can have very serious consequences on public health consuming these products halieutics.