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Original Articles

Occupational exposure to beryllium in French industries

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Pages 229-241 | Published online: 13 Feb 2019
 

Abstract

Beryllium (Be) is a metal mainly used in the form of alloys, with copper (Cu) and aluminium (Al) in the metal industry. Be is an extremely toxic element which must be handled under strictly controlled conditions to avoid health hazards to workers. Exposure to Be can be responsible for Chronic Beryllium Disease, a pulmonary disease preceded by sensitization to the element, and for lung cancer. The goals of the current study were to investigate Be exposure in France, to determine the airborne Be occupational exposure levels, the associated impregnation of employees through their urinary Be levels and the factors that might affect them, and finally to study a possible relation between biomonitoring and airborne data. Seventy-five volunteer subjects were thus atmospherically and biologically monitored in five French companies involved in Cu or Al casting, Al smelting, CuBe machining or AlBe general mechanical engineering. Airborne exposure was quite low with only 2% of measurements above the current French Occupational Exposure Limit (2 µg/m3); the population potentially most exposed was foundry workers. Impregnation with Be was also low with only 10% of quantified urinary Be measurements above the current German BAR value (0.05 µg/L). Using a Bayesian statistical modelling approach, the mean subject-specific urinary excretion of Be was found to increase significantly with the mean subject-specific exposure to airborne Be. From this relationship, and based on the current French OEL-8 hr, a Biological Limit Value of 0.08 µg/L (= 0.06 µg/g creatinine) could be proposed.

Acknowledgments

The authors thank the French National Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS). We particularly acknowledge the efforts of Guillaume Antoine, Alain Boulet, Nathalie Carabin, Frédéric Cosnier, Thibaut Durand, Jean-Marie Elcabache, Virginie Matera, Mathieu Melczer, Samuel Müller, Véronique Oury, and Anne-Marie Lambert-Xolin.

Additional information

Funding

Funding for this project was entirely based on the core funding of the INRS which is the sole employer of the authors. The authors declare no conflict of interest relating to the material presented in this article. Its contents, including any opinions and/or conclusions expressed, are solely those of the authors.

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