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Ambient Environmental Ozone and Variation of Fractional Exhaled Nitric Oxide (FeNO) in Hairdressers and Healthcare Workers

Author

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  • Tonje Trulssen Hildre

    (Environmental and Occupational Medicine, Department of Pulmonary Medicine, Division of Medicine, Oslo University Hospital, 0424 Oslo, Norway)

  • Hilde Heiro

    (Environmental and Occupational Medicine, Department of Pulmonary Medicine, Division of Medicine, Oslo University Hospital, 0424 Oslo, Norway)

  • Ingvill Sandven

    (Environmental and Occupational Medicine, Department of Pulmonary Medicine, Division of Medicine, Oslo University Hospital, 0424 Oslo, Norway)

  • Bato Hammarström

    (Environmental and Occupational Medicine, Department of Pulmonary Medicine, Division of Medicine, Oslo University Hospital, 0424 Oslo, Norway)

Abstract

Fractional exhaled nitric oxide (FeNO) is a breath-related biomarker of eosinophilic asthma. The aim of this study was to investigate FeNO variations due to environmental or occupational exposures in respiratory healthy subjects. Overall, 14 hairdressers and 15 healthcare workers in Oslo were followed for 5 workdays. We registered the levels of FeNO after commuting and arriving at the workspace and after ≥3 h of work, in addition to symptoms of cold, commuting method, and hair treatments that were performed. Both short- and intermediate-term effects after exposure were evaluated. Environmental assessment of daily average levels of air quality particulate matter 2.5 (PM 2.5 ), particulate matter 10 (PM 10 ), nitrogen dioxide (NO 2 ), sulphur dioxide (SO 2 ), and ozone (O 3 ) indicated a covariation in ozone and FeNO in which a 35–50% decrease in ozone was followed by a near 20% decrease in FeNO with a 24-h latency. Pedestrians had significantly increased FeNO readings. Symptoms of cold were associated with a significant increase in FeNO readings. We did not find any FeNO increase of statistical significance after occupational chemical exposure to hair treatments. The findings may be of clinical, environmental and occupational importance.

Suggested Citation

  • Tonje Trulssen Hildre & Hilde Heiro & Ingvill Sandven & Bato Hammarström, 2023. "Ambient Environmental Ozone and Variation of Fractional Exhaled Nitric Oxide (FeNO) in Hairdressers and Healthcare Workers," IJERPH, MDPI, vol. 20(5), pages 1-10, February.
    • Handle: RePEc:gam:jijerp:v:20:y:2023:i:5:p:4271-:d:1082795
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    References listed on IDEAS

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    1. Veruscka Leso & Ilaria Vetrani & Ilaria Della Volpe & Caterina Nocera & Ivo Iavicoli, 2019. "Welding Fume Exposure and Epigenetic Alterations: A Systematic Review," IJERPH, MDPI, vol. 16(10), pages 1-17, May.
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