Contamination of Annaba bay (northeastern extremity of Algeria) by multi-pesticide residues

Abstract

Annaba Bay is the ultimate receiver of innumerable chemical substances issued from various anthropogenic activities. These telluric releases could have biocidal properties. In order to preserve the quality of the coastal waters and to limit these flows that are dangerous for the marine environment, seasonal monitoring of water quality of the two main wadis has been carried out. The results show that Bouhamra wadi is mainly polluted by organochlorine and organophosphate insecticides, herbicides and fungicides. While the Seybouse wadi is affected mainly by organophosphate insecticides, herbicides and fungicides. The quality of the wadis is very poor with respect to organochlorine, organophosphate insecticides and herbicides. Acceptable quality is attributed to water with respect to fungicides.