Journal of Environmental Health Science & Engineering24"ATRAZINE ADSORPTION-DESORPTION BEHAVIOR IN DAREHASALUIE KAVAR CORN FIELD SOIL "221228M. DehghaniS. NasseriS. AminK. NaddafiM. YunesianM. Taghavi N. Maleki20151209Adsorption desorption behaviors of widely applied atrazine soil were studied, employing a batch technique as a case study in Darehasaluie Kavar corn field in Fars Province in 2005. Samples were collected into 0 to 20 cm soil depth, where was cultivated under a crop rotation (corn-wheat) during the past 10 years. Sorption kinetics exhibited two phenomena: an immediate rapid sorption (1.31 µg/g soil after 12 hours) followed by a slow sorption process (1.37 µg/g soil after 24 hours). Desorption behavior of atrazine was similar to its adsorption, but at a very slower rate. Atrazine desorption efficiencies were much less effective and incomplete even after a long equilibration time (only 9.16% after 96 hours). The adsorption-desorption rate for most of the time was positively related to the amount of applied atrazine and the time required for equilibration (Phttps://ijehse.tums.ac.ir/index.php/jehse/article/view/54https://ijehse.tums.ac.ir/index.php/jehse/article/download/54/53