translate English to French: In addition, due to limitations of the available data, it is likely that exposure of the general population to these compounds in the environment in Canada has been overestimated.
Lors d'études de toxicité aiguë, des bactéries et des algues ont été exposées à diverses concentrations de tétrachlorobenzènes (Hutchinson et coll., 1980; EPA des É.-U., 1980a; Ribo et Kaiser, 1983; Wong et coll., 1984; Blum et Speece, 1991).