Mhadhbi T., Pringault Olivier, Nouri H., Spinelli S., Beyrem H., Gonzalez C. (2019). Evaluating polar pesticide pollution with a combined approach : a survey of agricultural practices and POCIS passive samplers in a Tunisian lagoon watershed. Environmental Science and Pollution Research, 26 (1), p. 342-361. ISSN 0944-1344.
Titre du document
Evaluating polar pesticide pollution with a combined approach : a survey of agricultural practices and POCIS passive samplers in a Tunisian lagoon watershed
Environmental Science and Pollution Research, 2019,
26 (1), p. 342-361 ISSN 0944-1344
A study of pesticides in the Bizerte lagoon watershed on the Mediterranean coast of Tunisia showed that herbicides and fungicides are the most commonly used compounds. A survey was made of selected farmers. Pesticide contamination was monitored in the water column and sediments at four selected sampling sites (lagoon (A) and in three oueds Chegui (B), Garaa (C), and Tinja (D)). Polar organic chemical integrative samplers (POCIS) were used to assess pesticide contamination. Thirty-two pesticides were investigated; the total concentration of active ingredients ranged from 35.9ngL(-1) in Tinja oued to 1246ngL(-1) in Chegui oued. In the lagoon, the total concentration of pesticides was 67.7ngL(-1). In the sediments, the highest concentration was measured in Chegui oued in the spring (31ngg(-1) dw). The main compounds found in the analyzed sediments were prosulfocarb and tebuconazole molecules.
