Abstract
Olive tree leaf samples were collected to investigate their possible use for biomonitoring of lipophilic toxic substances. The samples were analyzed for 28 polychlorinated biphenyls (PCB) congeners. Twelve congeners were detected in the samples. PCB-60, 77, 81, 89, 105, 114, and 153 were the most frequently detected congeners ranging from 32% for PCB-52 to 97% for PCB-81. Σ12PCBs concentration varied from below detection limit to 248ng/g wet weight in the sampling area, while the mean congener concentrations ranged from 0.06ng/g (PCB-128 + 167) to 64.2ng/g wet weight (PCB-60). Constructed concentration maps showed that olive tree leaves can be employed for the estimation of spatial distrubution of these congeners.
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