MONITORING ORGANOCHLORINE PESTICIDES IN BUNA RIVER USING LIQUID ? LIQUID EXTRACTION

Political and demographic changes after 90`s have been associated with problems of anthropogenic as well as erosion, flooding and the input of potentially toxic hydrophobic organic pollutants (HOPs) in the area. The Buna River is 44 km long and its depth varies between 2 and 4 m. It drains the Skadar/Shkoder Lake; the Drin River flows into the Buna/Bojana about 1.5 km from the out flow of the latter from the Lake. The present study consists in identification of persistent organic pollutants in surface waters of Buna river. Environmental pollution caused by a variety of chemicals. Surface water samples at 4 different sites through the river length were collected during two years (2013 and 2014). The aim of this study is determination of organochlorine pesticides with liquid ? liquid extraction (LLE) method in Buna river followed by gas chromatography (with electron capture detector, ECD).The quantified pesticides were α-HCH, β-HCH, HCB, Lindane, Heptachlor, 2,4-DDE, 4,4-DDE, DDT, DDD and methoxychlor. Measurements resulted in concentrations of the OCP‘s ranging from 1.43 to 1344 ng/L. High level concentrations of HCB pesticides in the surface water were observed in four sites.