Regional-temporal Trends and Risk Assessment of Polychlorinated Biphenyls (PCBs) in Olive Lands in Bursa, Turkey


Erkul S. N. , EKER ŞANLI G.

SOIL & SEDIMENT CONTAMINATION, vol.31, no.6, pp.715-737, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 31 Issue: 6
  • Publication Date: 2022
  • Doi Number: 10.1080/15320383.2021.2001641
  • Journal Name: SOIL & SEDIMENT CONTAMINATION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Agricultural & Environmental Science Database, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, Communication Abstracts, Compendex, Environment Index, INSPEC, Metadex, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Page Numbers: pp.715-737
  • Keywords: Soil, PCB, homologous groups, cancer risk, POLYCYCLIC AROMATIC-HYDROCARBONS, AIR-SOIL EXCHANGE, PERSISTENT ORGANIC POLLUTANTS, HUMAN HEALTH-RISK, DIBENZO-P-DIOXINS, SURFACE SOILS, URBAN SOILS, AGRICULTURAL SOILS, ORGANOCHLORINE PESTICIDES, SPATIAL-DISTRIBUTION
  • Bursa Uludag University Affiliated: Yes

Abstract

In 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.