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Exposure to PAHs during Firefighting Activities: A Review on Skin Levels, In Vitro/In Vivo Bioavailability, and Health Risks

Author

Listed:
  • Gabriel Sousa

    (REQUIMTE/LAQV, Instituto Superior de Engenharia, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida 431, 4249-015 Porto, Portugal
    These authors contributed equally to this work.)

  • Joana Teixeira

    (REQUIMTE/LAQV, Instituto Superior de Engenharia, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida 431, 4249-015 Porto, Portugal
    These authors contributed equally to this work.)

  • Cristina Delerue-Matos

    (REQUIMTE/LAQV, Instituto Superior de Engenharia, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida 431, 4249-015 Porto, Portugal)

  • Bruno Sarmento

    (CESPU-Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, 4585-116 Gandra, Portugal
    Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal)

  • Simone Morais

    (REQUIMTE/LAQV, Instituto Superior de Engenharia, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida 431, 4249-015 Porto, Portugal)

  • Xianyu Wang

    (QAEHS-Queensland Alliance for Environmental Health Sciences, The University of Queensland, Woolloongabba, QLD 4102, Australia)

  • Francisca Rodrigues

    (REQUIMTE/LAQV, Instituto Superior de Engenharia, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida 431, 4249-015 Porto, Portugal)

  • Marta Oliveira

    (REQUIMTE/LAQV, Instituto Superior de Engenharia, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida 431, 4249-015 Porto, Portugal)

Abstract

Occupational exposure as a firefighter is a complex activity that continuously exposes subjects to several health hazards including fire emissions during firefighting. Firefighters are exposed to polycyclic aromatic hydrocarbons (PAHs), known as toxic, mutagenic, and carcinogenic compounds, by inhalation, dermal contact, and ingestion. In this work, a literature overview of firefighters’ dermal exposure to PAHs after firefighting and data retrieved from skin in vitro/in vivo studies related to their dermal absorption, bioavailability, and associated toxicological and carcinogenic effects are reviewed. The evidence demonstrates the contamination of firefighters’ skin with PAHs, mainly on the neck (2.23–62.50 ng/cm 2 ), wrists (0.37–8.30 ng/cm 2 ), face (2.50–4.82 ng/cm 2 ), and hands (1.59–4.69 ng/cm 2 ). Concentrations of possible/probable carcinogens (0.82–33.69 ng/cm 2 ), including benzopyrene isomers, were found on firefighters’ skin. PAHs penetrate the skin tissues, even at low concentrations, by absorption and/or diffusion, and are locally metabolized and distributed by the blood route to other tissues/organs. Lighter PAHs presented increased dermal permeabilities and absorption rates than heavier compounds. Topical PAHs activate the aryl hydrocarbon receptor and promote the enzymatic generation of reactive intermediates that may cause protein and/or DNA adducts. Future research should include in vitro/in vivo assays to perform a more realistic health risk assessment and to explore the contribution of dermal exposure to PAHs total internal dose.

Suggested Citation

  • Gabriel Sousa & Joana Teixeira & Cristina Delerue-Matos & Bruno Sarmento & Simone Morais & Xianyu Wang & Francisca Rodrigues & Marta Oliveira, 2022. "Exposure to PAHs during Firefighting Activities: A Review on Skin Levels, In Vitro/In Vivo Bioavailability, and Health Risks," IJERPH, MDPI, vol. 19(19), pages 1-22, October.
  • Handle: RePEc:gam:jijerp:v:19:y:2022:i:19:p:12677-:d:932990
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    References listed on IDEAS

    as
    1. Jooyeon Hwang & Chao Xu & Robert J. Agnew & Shari Clifton & Tara R. Malone, 2021. "Health Risks of Structural Firefighters from Exposure to Polycyclic Aromatic Hydrocarbons: A Systematic Review and Meta-Analysis," IJERPH, MDPI, vol. 18(8), pages 1-18, April.
    2. Xuan Zhang & Lu Yang & Hao Zhang & Wanli Xing & Yan Wang & Pengchu Bai & Lulu Zhang & Kazuichi Hayakawa & Akira Toriba & Yongjie Wei & Ning Tang, 2021. "Assessing Approaches of Human Inhalation Exposure to Polycyclic Aromatic Hydrocarbons: A Review," IJERPH, MDPI, vol. 18(6), pages 1-14, March.
    Full references (including those not matched with items on IDEAS)

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