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Canadiens vulnérables au bruit en milieu de travail
Contexte : Les lois relatives à la santé et à la sécurité visent à protéger les travailleurs des dangers, y compris du bruit excessif. Cependant, certains travailleurs ne sont pas tenus d'utiliser des dispositifs de protection de l'ouïe en cas d'exposition à du bruit intense et ils peuvent en subir les répercussions néfastes, notamment des troubles auditifs et des acouphènes. Données et méthodes : Les données pour les personnes âgées de 19 à 79 ans (n = 6 571) ont...
Comment étudier l'effet d'un protecteur auditif sur l'audibilité des signaux avertisseurs de danger?
Le port de protecteurs auditifs (bouchons d'oreilles, casques anti-bruit) est susceptible de nuire à la perception des signaux sonores indicateurs de danger, comme l'alarme de recul d'un chariot élévateur. Dans le cadre d'un partenariat entre l'INRS et la SNCF, l'effet du port de protecteurs a été évalué à partir de signaux sonores caractéristiques des trois principaux métiers du secteur ferroviaire. Source: Arz, J.-P. Hygiène et sécurité du travail , No 243, Juin 2016, p. 64-69. http...
Développement d’outils et de méthodes pour mieux évaluer et améliorer la protection auditive individuelle des travailleurs
Lorsque l'élimination à la source ne peut être envisagée, la protection individuelle demeure la solution la plus utilisée pour protéger les travailleurs exposés à des niveaux de bruit importants en raison de sa facilité et de sa rapidité d'implantation, ainsi que de son faible coût économique. Le port des protecteurs auditifs est néanmoins associé à plusieurs problématiques : (i) ils peuvent être un cofacteur de risque pour les accidents du travail, (ii) leur performance réelle...
A cross-sectional study of hearing thresholds among 4627 Norwegian train and track maintenance workers
OBJECTIVE: Railway workers performing maintenance work of trains and tracks could be at risk of developing noise-induced hearing loss, since they are exposed to noise levels of 75-90 dB(A) with peak exposures of 130-140 dB(C). The objective was to make a risk assessment by comparing the hearing thresholds among train and track maintenance workers with a reference group not exposed to noise and reference values from the ISO 1999. DESIGN: Cross-sectional. SETTING: A major Norwegian railway company. PARTICIPANTS: 1897 and 2730 male train and track maintenance workers, respectively, all exposed to...
Modeling acoustic propagation in a compartment fire
Firefighters unable to move and in need of rescue use an audible alarm to signal for help. Rescue teams can then follow this sound to the firefighter. This alarm is governed by NFPA 1982 : Standard on Personal Alert Safety System (PASS). Introduced in 1983, the PASS has saved many firefighter lives. However, a number of incidents have occurred where the PASS is less effective. There have been incidents where the PASS was heard sporadically on the fireground, or where localization of the alarm was difficult, leading to injury and loss of life. We hypothesized that the temperature field created by...
The effect of firefighter personal protective equipment on auditory thresholds
Communication on a fire scene is essential to the safety of firefighters. Not only to be able to hear and understand radio chatter, but also alarm signals used on the fireground. One such alarm is the Personal Alert Safety System (PASS) device. This device is used to help locate a downed firefighter. One part of this complex problem is the effect of the protective equipment (helmet, eye protection, hood, coat) on hearing. Previous findings have shown the effect of this protective equipment on head related transfer functions using a KEMAR. [Suits et al. (2013, June). Paper presented at the International...
NIOSH HPD Well-Fit™: The Future is Fit-Testing
For workers and others who are exposed to dangerously loud noises which cannot be reduced or eliminated, hearing protection devices (HPDs) are absolutely necessary to save their hearing. But if HPDs are not properly selected or correctly worn, the devices may not block out enough noise and the wearer may still risk a loss of hearing. How can a person tell if their HPDs are fit correctly? A new development from NIOSH – HPD Well-FitTM – can quickly and inexpensively test the performance of hearing protection. This fit testing technology is a huge advancement in efforts to save workers'...
RR727 - Market surveillance of custom-moulded earplugs
A study of a selection of CE-marked custom-moulded earplugs available in the UK was carried out in order to examine the protection provided by such devices, and to identify any influencing factors on protection, comfort and fit. Source: http://www.hse.gov.uk/research/rrhtm/rr727.htm?ebul=noise/nov09&cr=1
Exposition au bruit : 3 calculettes pour faciliter le mesurage
L'INRS propose 3 outils pratiques pour faciliter l'évaluation et le mesurage de l'exposition au bruit des salariés. Ces calculettes permettent d'évaluer la protection réelle des protecteurs individuels contre le bruit (PICB), d'estimer l'exposition quotidienne à partir de plusieurs phases d'exposition et enfin de réaliser les calculs requis par la nouvelle norme sur la détermination de l'exposition au bruit en milieu de travail. Source: http://www.inrs.fr/actus/CalculettesBruit.html
Real world use and performance of hearing protection
This report considers the effectiveness of hearing protectors in everyday work situations. The study reported here was undertaken in two parts. The first consisted of interviews with employers to discuss management of noise and hearing protector use, and on site observation of hearing protector use. The second part was objective laboratory measurements of hearing protector insertion loss. The purpose of these measurements was to quantify the reduction in protection due to poor fitting or maintenance for a range of hearing protectors. Earmuffs were tested using the MIRE (microphone in real ear)...
The Noise of Music
This Guidance is intended to provide practical guidelines to help workers and employers in the music and entertainment sectors to protect their hearing and meet their legal obligations. http://publications.hsa.ie/getFile.asp?FC_ID=606&docID=322

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