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Évaluation des bénéfices potentiels liés à l’utilisation d’un brouillard d’eau basse pression dans la lutte contre les incendies chez les sapeurs-pompiers de Paris, à partir d’une évaluation quantitative des risques

Abstract : Objectives Changes in residential building design and the use of new construction materials are introducing new risks to firefighters, including increased smoke toxicity. A water-mist system produced by hydropneumatic fragmentation in firefighting operations could reduce the exposure to toxic smoke. The purpose of this study is to assess the potential health benefits for firefighters of such a water-mist system on smoke exposure during the post-extinction phase (dedicated to excavating operations). Methods The different pollutants present during the post-extinction phase were identified and their concentrations measured in an experimental context. Then we estimated the duration of occupational exposure of firefighters to these pollutants through an exposure matrix. Finally, using a quantitative health risk assessment approach, we compared the risks associated with smoke exposure in the context of a conventional attack with those associated with the use of a water-mist system. Results With the use of traditional firefighting equipment, our study shows an excess cancer risk of up to 1,3/100,000 depending on the rank of the firefighters studied, as well as hazard quotients well above 1 for non-cancer effects. The use of a water-mist fire-fighting system allows to reduce the excess risk of cancer to below 2,6/1,000,000. However, despite the use of this new extinction method, the non-cancer risk level remains high for some toxic substances. Conclusions It is necessary to implement preventive actions to reduce the exposure of firefighters to toxic smokes and its health impact. This study shows that innovative firefighting approaches, such as a water-mist firefighting system, could lead to positive results.
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https://hal-cnam.archives-ouvertes.fr/hal-03615121
Contributor : Marie-Liesse Bertram Connect in order to contact the contributor
Submitted on : Monday, March 21, 2022 - 12:12:51 PM
Last modification on : Wednesday, September 28, 2022 - 5:53:37 AM

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J. Dirand, F. Rieunier, F. Testa, L. Temime. Évaluation des bénéfices potentiels liés à l’utilisation d’un brouillard d’eau basse pression dans la lutte contre les incendies chez les sapeurs-pompiers de Paris, à partir d’une évaluation quantitative des risques. Archives des Maladies Professionnelles et de L'Environnement, Elsevier Masson, 2021, 82 (6), pp.601-613. ⟨10.1016/j.admp.2021.07.007⟩. ⟨hal-03615121⟩

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