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Epistaxis in a Low Level Hydrogen Fluoride Exposed Industrial Staff
Linköping University, Department of Clinical and Experimental Medicine, Occupational and Environmental Medicine . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Medicine, Occupational and Environmental Medicine Centre. Östergötlands Läns Landsting, Centre for Medicine.
Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Medicine, Occupational and Environmental Medicine Centre. Östergötlands Läns Landsting, Centre for Medicine.
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2009 (English)In: AMERICAN JOURNAL OF INDUSTRIAL MEDICINE, ISSN 0271-3586, Vol. 52, no 3, 240-245 p.Article in journal (Refereed) Published
Abstract [en]

Objectives To assess the effect of exposure to hydrogen fluoride (HF) on the airway mucosa in an industrial setting.

Methods A cross-sectional study encompassing 33 industrial workers in a flame soldering plant and 44 assembly workers unexposed to HF was performed by means of a questionnaire on symptoms and diagnosis regarding upper and lower airways as well as through conduct of a clinical examination of the exposed group. Air concentrations of HF that were monitored in winter amounted to 1.0 mg/m(3) and in summer time to 0.15 mg/m(3).

Results A threefold risk for epistaxis (RR = 3.6, 95% confidence interval 1.1-11.0) was observed in the exposed group. Time from the start of exposure to HF until debut of a nose bleeding period varied from 1 month to 6 years. Mean induction (latency) time was 42 months. Mean duration of symptoms was 26 months, range 3-72 months, indicating that the exposure level in summer time was sufficient to maintain the propensity of almost daily, nose bleeding.

Conclusion HF is an irritating vapor, even at relatively low air concentrations. We recommend an 8 hr TLV lower than 1.0 mg/m(3).

Place, publisher, year, edition, pages
2009. Vol. 52, no 3, 240-245 p.
Keyword [en]
hydrogen fluoride, nose bleeding, rhinitis, flame soldering, asthma
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-17170DOI: 10.1002/ajim.20667OAI: oai:DiVA.org:liu-17170DiVA: diva2:202161
Available from: 2009-03-07 Created: 2009-03-07 Last updated: 2010-01-09

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Graff, PålBozhkov, GeorgiFlodin, Ulf

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Occupational and Environmental Medicine Faculty of Health SciencesOccupational and Environmental Medicine CentreCentre for MedicineDepartment of Clinical and Experimental Medicine
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