İstanbul’da Kiş Hava Şartlarinda Atmosferi̇k Organoklorlu Pesti̇si̇t Sevi̇yeleri̇ Ve Gaz/Parti̇kül Dağilimlari

Abstract

In this study, gas and particle phase ambient organochlorine pesticide (OCP) levels were investigated atan urban site in Istanbul. Samples were collected by a high-volume sampler for fourteen days in winter. Individual OCP concentrations were between13 and 593 pg.m-3 for particle phase and 14 and 1,748 pg.m-3 for gaseous phase. The sums of the average concentration of each OCP in gaseous and particle phases were 3,219 and 2,746 pg.m-3 , respectively. δ-HCH had the highest individual concentration. The abundance of DDTs followed the order 4.4'-DDT > 4.4'-DDD > 4.4'-DDE.The Σ(gas+particle)OCP concentrations ranged between 1,845 and 10,196 pg.m-3. On the days when high concentrations were observed, the trajectories of air masses were investigated by the HYSPLIT model. logKp versus logP L 0 model was applied in order to determine the fate of gas/particle partitioning. The average slope of the regression line was-0.35, whereas the intercept was-2.89.