Autors: Dimitrova, A. D., Stoyanova, Y. P., Tachev A.
Title: Distribution and risk assessment of polychlorinated biphenyls (PCBs) in urban soils of Sofia City, Bulgaria
Keywords: Polychlorinated biphenyls (PCBs), indicator PCBs, dioxin-lik

Abstract: There is a lack of information regarding levels of polychlorinated biphenyls (PCBs) in soil samples from Bulgaria. This paper reports the concentrations of six indicator PCBs and six dioxin-like PCBs determined in 35 soil samples from urban areas of Sofia City, the capital of Bulgaria. TEQ values of dioxin-like PCBs were calculated also. The results show that the sums of concentration of indicator-PCBs were in the range 7.2–17.2 µg kg-1. Small amounts of all dioxin-like PCBs also were found (1.1–5.1 µg kg-1). High chlorinated indicator-PCBs:138, 153 and 180 were the most abundant in the soil samples. Dioxin-like PCB 77 was in minor concentration (0.25 µg kg-1) and dl-PCB 118 was predominant dioxin-like congener (0.68 µg kg-1). TEQs of soil samples are in the range 0.006-0.08 µg kg-1. The highest TEQ is found for PCB 126. All concentrations of PCBs determined in this study are below the maximum admissible concentration in soils according to the Bulgarian Legislation.


  1. S. Wena, F. Yanga, J.G. Lib, Y. Gongd, X.L. Zhanga, Y. Huia, Y.N. Wub, Y.F. Zhaob, Ying Xua, Polychlorinated dibenzo-p-dioxin and dibenzofurans (PCDD/Fs), polybrominated diphenyl ethers (PBDEs), and polychlorinated biphenyls (PCBs) monitored by tree bark in an E-waste recycling area, Chemosphere, 74, 7, 2009, 981–987.
  2. H.X. Liu, Q.F. Zhou, Y.W. Wang, Q.H. Zhang, Z.W. Cai, G.B. Jiang, E-waste recycling induced polybrominated diphenyl ethers, polychlorinated biphenyls, polychlorinated dibenzo-p-dioxins and dibenzo-furans pollution in the ambient environment, Environ. Int, 34, 2008, 67–72.
  3. C.F. Shen, Y.X. Chen, S.B. Huang, Z.J. Wang, C.N. Yu, M. Qiao, Y.P. Xu, K. Setty, J.Y. Zhang, Y.F. Zhu, Q. Lin, Dioxin-like compounds in agricultural soils near e-waste recycling sites from Taizhou area, China: chemical and bioanalytical characterization, Environ. Int, 35, 2009, 50–55.
  4. P. Tremolada, V. Burnett, D. Calamari, K. Jones, A study of the spatial distribution of PCBs in the UK atmosphere using pine needles, Environ. Sci. Technol., 30, 1996, 3570-3577.
  5. F. Wong, M. Robsonc, M.L. Diamond, S. Harradd, J. Truong, Concentrations and chiral signatures of POPs in soils and sediments: A comparative urban versus rural study in Canada and UK, Chemosphere, 74, 3, 2009, 404–411.
  6. W.A. Ockenden K. Breivik, S. Meijer, E. Steinnes, A. Sweetman, K. Jones, The global re-cycling of persistent organic pollutants is strongly retarded by soils, Environ. Pollut., 121, 2003, 75-80.
  7. S.N., Meijer, W.A. Ockenden, A.Sweetman, K. Breivik, J.O. Grimalt, K.C. Jones, Global distribution and budget of PCBs and HCB in background surface soils: Implications or sources and environmental processes, Environ. Sci. Technol., 37, 2003, 667–672.
  8. B.Aichner, B. Glaser, W. Zech, Polycyclic aromatic hydrocarbons and polychlorinated biphenyls in urban soils from Kathmandu, Nepal, Org. Geochem., 38, 2007, 700 –715.
  9. S.Fu, H. Cheng, Y. Liu, L. Zhang, Z.Yang, K. Li, X. Xia, X. Xu, Polychlorinated biphenyls residues in the soil in linfen, China, Bull. Environ. Contam. Toxicol., 81, 2008, 594–598.
  10. D.G. Wang, M. Yang, H.L. Jia, L. Zhou, Y.F. Li, Levels, distributions and profiles of polychlorinated biphenyls in surface soils of Dalian, China, Chemosphere, 73, 2008, 38–42.
  11. S.Fu, H.X. Cheng, Y.H. Liu, Z.Z. Yang, X.B. Xu, Spatial character of polychlorinated biphenyls from soil and respirable particulate matter in Taiyuan, China, Chemosphere, 74, 2009, 1477–1484.
  12. T. Rizov, V. Kambourova, Y.Simeonov, I. Benchev, Is environmental pollution with polychlorinated biphenyls a problem for Bulgaria, Management of Intentional and Accidental Water Pollution, 2005, 137 - 150.
  13. Bulgarian Regulation Number 3, Concerning Limit Values of Hazardous Substances in Soil, State Gazette, Sofia, Bulgaria, 2008, No. 71.
  14. W. Wilcke, W. Zech, Polychlorinated biphenyls (PCBs) in bulk soil and particle-size separates of soils in a rural community, Z. Pflanzenernähr. Bodenk. 161, 1998, 289-295
  15. A. Cachada, L.V. Lopes, A.S. Hursthouse, M. Biasioli, H. Grcman, E. Otabbong, C. M. Davidson, A. C. Duarte, The variability of polychlorinated biphenyls levels in urban soils from five European cities, Environ. Pollut., 157, 2009, 511–518.
  16. S. Wu, X. Xia, L. Yang, H. Liu, Distribution, source and risk assessment of Polychlorinated biphenyls (PCBs) in urban soils of Beijing, China, Chemosphere, 82, 2011, 732–738.
  17. W. Wilcke, M. Krauss, G. Safronov, A.D. Fokin, M. Kaupenjohann, Polychlorinated biphenyls (PCBs) in soils of the Moscow region: concentrations and small-scale distribution along an urban–rural transect, Environ. Pollut., 141, 2006, 327–335.
  18. M. Krauss W. Wilcke, W. Zech, Polycyclic aromatic hydrocarbons and polychlorinated biphenyls in forest soils: depth distribution as indicator of different fate, Environ. Pollut., 110, 2000, 79-88.
  19. P. Weiss G. Lorbeer, S. Scharf, Regional aspects and statistical characterisation of the load with semivolatile organic compounds at remote Austrian forest sities, Organohalogen Compd., 39, 1998, 381-384.
  20. J. Grimalt, B. Van Drooge, A. Ribes, R. Vilanova, P. Fernandez, P. Appleby, Polycyclic aromatic hydrocarbon composition in soils and sediments of high altitude lakes, Chemosphere, 54, 2004, 1549-1561.
  21. Canadian Council of Ministers of the Environment, Canadian soil quality guidelines for the protection of environmental and human health. Dioxins and Furans, 2002.
  22. M. Van den Berg, L.S. Birnbaum, M. Denison, M. De Vito, W. Farland, M. Feeley, H. Fiedler, H. Hakansson, A. Hanberg, L. Haws, M. Rose, S. Safe, D. Schrenk, C. Tohyama, A.Tritscher, J. Tuomisto, M. Tysklind, N. Walker, R. E. Peterson, The 2005 World Health Organization reevaluation of human and mammalian toxic equivalency factors for dioxins and dioxin-like compounds, Toxicol. Sci, 93, 2006, 223–241.
  23. Z. Amirova, I. Shahtamirov, The consequences of oil and military technogenesis in the Chechen Republic, Russia. II. PCDD/Fs and PCBs-WHO pollution of soils, Organohalogen Compd., 2010, 72, 312–315.
  24. I. Offenthaler, R. Bassan, C. Belis, G. Jakobi, M. Kirchner, N. Krauchi, W. Moche, K.-W. Schramm, I. Sedivy, P. Simoncic, M. Uhl, P. Weiss, PCDD/F and PCB in spruce forests of the Alps, Environ. Pollut., 2009, 157, 3280– 3289.


Recent Advances in Chemical Engineering, Biochemistry and Computational Chemistry, Proceedings of the 4th WSEAS International Conference on Biochemistry and Medical Chemistry (BIOMEDCH '13), Proceedings of the 7th WSEAS International Conference on Computational, Chemistry (COMPUCHEM '13),Proceedings of the 4th European Conference of Chemical Engineering (ECCE '13), Paris, France, October 29-31, pp. 48 – 54, 2013, France, ISBN 978-960-474-342-1

Copyright WSEAS

Цитирания (Citation/s):
1. Škrbić, Biljana D., et al. "Seasonal variation and health risk assessment of organochlorine compounds in urban soils of Novi Sad, Serbia." Chemosphere 181 (2017): 101-110. - 2017 - в издания, индексирани в Scopus или Web of Science
2. Yurdakul, Sema, et al. "Levels, temporal/spatial variations and sources of PAHs and PCBs in soil of a highly industrialized area." Atmospheric Pollution Research 10.4 (2019): 1227-1238. - 2019 - в издания, индексирани в Scopus или Web of Science
3. Alawi, Mahmoud A., and Abbas L. Azeez. "Study of polychlorinated biphenyls (PCBs) in soil samples from Al-Ahdab oil field in Waset region/Iraq." Toxin Reviews 36.2 (2017): 109-115. - 2017 - в издания, индексирани в Scopus или Web of Science
4. Dvoršćak, Marija, et al. "Soil burden by persistent organochlorine compounds in the vicinity of a coal-fired power plant in Croatia: a comparison study with an urban-industrialized area." Environmental Science and Pollution Research 26.23 (2019): 23707-23716. - 2019 - в издания, индексирани в Scopus или Web of Science
5. Sanchez-Hernandez, Juan C., ed. Bioremediation of Agricultural Soils. CRC Press, 2019. - 2019 - от чужди автори в чужди издания, неиндексирани в Scopus или Web of Science
6. Dumat, Camille, et al. "Pollutants in urban agriculture." Bioremediation of Agricultural Soils 100 (2019): 61. - 2019 - от чужди автори в чужди издания, неиндексирани в Scopus или Web of Science
7. Gakuba, Emmanuel, et al. "Evaluation of persistent organochlorine pesticides and polychlorinated biphenyls in Umgeni River bank soil, KwaZuluNatal, South Africa." Water SA 45.4 (2019): 592-607. - 2019 - в издания, индексирани в Scopus или Web of Science
8. Adesina, Olusola Adedayo, et al. "Soil concentrations of Polychlorinated Biphenyl in a typical Nigerian University environment and its risk assessment." Case Studies in Chemical and Environmental Engineering (2023): 100343. - 2023 - в издания, индексирани в Scopus или Web of Science
9. Ossai, C. J., Iwegbue, C. M., Tesi, G. O., Olisah, C., Egobueze, F. E., Nwajei, G. E., & Martincigh, B. S. (2023). Spatial characteristics, sources and exposure risk of polychlorinated biphenyls in dusts and soils from an urban environment in the Niger Delta of Nigeria. Science of The Total Environment, 883, 163513. - 2023 - в издания, индексирани в Scopus или Web of Science
10. Debela, S. A., Sheriff, I., Wu, J., Hua, Q., Zhang, Y., & Dibaba, A. K. (2020). Occurrences, distribution of PCBs in urban soil and management of old transformers dumpsite in Addis Ababa, Ethiopia. Scientific African, 8, e00329. - 2020 - в издания, индексирани в Scopus или Web of Science

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