Pesticide residue assessment in three selected agricultural production systems in the Choluteca River Basin of Honduras

agua alimentos bassin versant chlorpyrifos clorpirifos cours d'eau cursos de agua ddt dieldrin dieldrine eau endosulfan fish foods heptachlor heptacloro honduras hortalizas lagoons lagunas lagune legume organochlorine compounds pescado pesticide pesticides plaguicidas poisson (aliment) pollution de l'eau pollution du sol pozos produit alimentaire puits residues residuos rivers sediment sedimento soil soil pollution sol suelo vegetables water water pollution watersheds wells