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Distribution, Sources and Risk Assessment of Polychlorinated Biphenyls in Soils from the Midway Atoll, North Pacific Ocean

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  • Jing Ge
  • Lee Ann Woodward
  • Qing X Li
  • Jun Wang

Abstract

Concentrations of 28 polychlorinated biphenyls (PCBs) were assessed in soils from the Midway Atoll in the central North Pacific Ocean. The analytical procedure involved the application of accelerated solvent extraction (ASE) and gas chromatography coupled with ion trap mass spectrometric detection (GC/ITMS) for identification and quantification. Among the 28 PCB congeners studied, 26 of them, except CB195 and CB209, were detected in the analyzed samples at different frequencies. The total concentrations of 28 indicator PCBs (ΣPCBs) ranged from 2.6 to 148.8 ng g−1 with an average value of 50.7 ng g−1 and median of 39.5 ng g−1. Sources and congeners’ pattern of PCB were investigated in the soil of Midway Atoll. The principal component analysis indicated that the compositions of PCBs in most of the soil samples were similar. The total concentrations of PCBs were used to assess the cancer risk probabilities in humans via ingestion, dermal contact and inhalation of soil particles. Very low cancer risk was found in all soil samples caused by ΣPCBs.

Suggested Citation

  • Jing Ge & Lee Ann Woodward & Qing X Li & Jun Wang, 2013. "Distribution, Sources and Risk Assessment of Polychlorinated Biphenyls in Soils from the Midway Atoll, North Pacific Ocean," PLOS ONE, Public Library of Science, vol. 8(8), pages 1-7, August.
    • Handle: RePEc:plo:pone00:0071521
    DOI: 10.1371/journal.pone.0071521
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    References listed on IDEAS

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    1. Jacob de Boer & Peter G. Wester & Hans J. C. Klamer & Wilma E. Lewis & Jan P. Boon, 1998. "Do flame retardants threaten ocean life?," Nature, Nature, vol. 394(6688), pages 28-29, July.
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    1. Junping Tian & Zheng Huo & Fengjiao Ma & Xing Gao & Yanbin Wu, 2019. "Application and Selection of Remediation Technology for OCPs-Contaminated Sites by Decision-Making Methods," IJERPH, MDPI, vol. 16(11), pages 1-15, May.
    2. Tekleweini Gereslassie & Ababo Workineh & Onyango Janet Atieno & Jun Wang, 2019. "Determination of Occurrences, Distribution, Health Impacts of Organochlorine Pesticides in Soils of Central China," IJERPH, MDPI, vol. 16(1), pages 1-18, January.
    3. Felica R. Davis & Hanan H. Ali & Jason A. Rosenzweig & Daniel Vrinceanu & Balaji Bhaskar Maruthi Sridhar, 2021. "Characterization of Chemical and Bacterial Concentrations in Floor Dust Samples in Southeast Texas Households," IJERPH, MDPI, vol. 18(23), pages 1-17, November.
    4. Siyu Yao & Jiahui Huang & Haijun Zhou & Cuiting Cao & Tao Ai & Huanhuan Xing & Jianteng Sun, 2022. "Levels, Distribution and Health Risk Assessment of Organochlorine Pesticides in Agricultural Soils from the Pearl River Delta of China," IJERPH, MDPI, vol. 19(20), pages 1-13, October.

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