Erkul, Şeyma NurSanlı, Gizem Eker2024-06-242024-06-242021-11-281532-0383https://doi.org/10.1080/15320383.2021.2001641https://www.tandfonline.com/doi/full/10.1080/15320383.2021.2001641https://hdl.handle.net/11452/42287In this study, it was aimed to determine the spatial and temporal variations of polychlorinated biphenyl (PCB) levels in olive lands (0-5 cm) and to identify dominant PCB homologous groups and cancer risk values. In this context, surface soil samples were taken from seven olive lands in Bursa-Turkey for 9 months. Sampling points were categorized as rural, semi-rural, residential, and industrial areas. Regional-temporal trends of 43 PCB compounds were reported. The total average ( n-ary sumation (43)) PCB concentrations ranged between 8.3 +/- 3.31 ng/g DM and 15.4 +/- 3.3 ng/g DM. The lowest n-ary sumation (43) PCB concentration was measured at the rural area (Mudanya Yorukali-MY) and the highest value was measured at Orhangazi Asilzade (OA), which is an industrial area. The dominant homologous group in all seasons was found to be 5-CBs (31%) followed by 4-CBs (16%) and 6-CBs (15%). Cancer risks were calculated and risk trend was determined as ingestion > dermal > inhalation. The values ranged between 5.26 x 10(-6) and 1.28x10(-5), 2.62 x 10(-5) and 1.08x10(-5), 1.68 x 10(-1) and 6.9 x 10(-12) for dermal, ingestion and inhalation, respectively. Also, the correlation between the levels of certain soil characteristics (dry matter, pH, and temperature) was also investigated. Statistical results showed that for PCB#89/101, PCB#135/144, PCB#126, PCB#156/171/202, PCB#172 PCB#170/190 it was determined that there was a significant relationship.eninfo:eu-repo/semantics/closedAccessPolycyclic aromatic-hydrocarbonsAir-soil exchangePersistent organic pollutantsHuman health-riskDibenzo-p-dioxinsSurface soilsUrban soilsOrganochlorine pesticidesSpatial-distributionSeasonal-variationsSoilPcbHomologous groupsCancer riskScience & technologyLife sciences & biomedicineEnvironmental sciencesArticle00072277860000171573731610.1080/15320383.2021.20016411549-7887