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Prévention du bruit (RSS)
Facing an increasing violence level and higher firepower in the hands of criminal organizations (especially those related to drug trafficking), the Military Police of Pernambuco has created, in 1989, the “1a Companhia Independente de Operações Especiais” (1st Independent Company of Special Operations), as a tactical last resort of the Police to be used on special, complex situations. The CIOE progressively makes use of Negotiation measures, of less-than-lethal maneuvers, of Precision Shots and Tactical Assaults. When all possibilities are drained, the Precision Shot will...
Noise induced hearing loss is still too prevalent in American workplaces as the attempts at “hearing conservation programs” have proven inadequate. The author explains that the American workers have been the subjects in what has been largely a failed experiment for 28 years. Hearing protection devices are neither an efficient nor a humane replacement for eliminating the noise hazard and should once again be allotted their proper place in the control hierarchy. Several studies have found widespread and serious gaps in compliance with requirements such as audiometric testing, training...
The most effective intervention—engineered noise controls (ENC) —is rarely implemented; a qualitative study was designed to investigate barriers to the implementation of ENC. Many factors emerged as possible barriers to the implementation of engineered noise control, including: poor knowledge of relevant regulations, noise reduction options and the health impacts of noise; weak technical skills and experience; low ranking of noise as a hazard by stakeholders; issues around job insecurity, weak language skills; lack of ‘quiet’ machine options and information from equipment...
En Suisse, environ 200 000 personnes sont exposées, dans le cadre de leur activité professionnelle, à du bruit pouvant mettre en danger l'ouïe. Des stations d'examen mobiles ou audiomobiles se déplacent dans toute la Suisse pour examiner tous les travailleurs exposés au bruit dangereux pour l'ouïe dans le cadre de leur activité professionnelle, par exemple les ouvriers forestiers, les serruriers, les menuisiers, les agents de police et, depuis 1987, les musiciens d'orchestre. Les examens de contrôle réguliers, le conseil...
The ADM noise exposure calculator helps identifying hotspots of noise exposure at work, at the discotheque and by use of an MP3 player. The ADM noise exposure calculator has been produced and is maintained by the IFA – Institute for Occupational Safety and Health of the German Social Accident Insurance Source : http://www.dguv.de/ifa/en/pra/softwa/laermbelastungsrechner/index.jsp
OSHA launched a new Safety and Health Topics page on Occupational Noise Exposure to provide resources to prevent noise-related hearing loss, which has been listed as one of the most prevalent occupational health concerns in the United States for more than 25 years. Approximately 30 million people in the United States are occupationally exposed to hazardous noise and thousands of workers every year suffer from preventable hearing loss due to high workplace noise levels. The new Web page provides information on the health effects of hazardous noise exposure and comprehensive information on controls...
The National Hearing Conservation Association (NHCA) sent a letter to the United States Occupational Safety and Health Administration (OSHA) advocating the regulatory body to revisit the interpretation and application of noise controls in industrial workplaces. In January 2011, OSHA withdrew its proposal to interpret guidelines emphasizing the use of engineering and administrative controls to mitigate occupational noise. “The implementation and enforcement of noise controls are essential to the success of any occupational hearing conservation program, and often provide additional production...
What factors influence employers' decisions and practices? Three factors were found to influence noise management: (i) managers' own knowledge/awareness of noise risks and associated controls, (ii) the health and safety culture of the company and (iii) its size. Managers generally underestimated the significance of noise as an occupational health risk; a critical knowledge gap was understanding what controls exist and would work in practice. The size of the company influenced the approach taken with smaller companies showing increased likelihood of reduced quality in noise management (ie...
La création du laboratoire ICAR s'inscrit naturellement dans la mission de l'ÉTS et de l'IRSST. Ces deux organisations résolument engagées dans la recherche et le développement affichent une longue tradition de collaboration. La mise en commun de leurs ressources respectives contribuera grandement au succès d'ICAR qui a aussi bénéficié d'une contribution financière de Développement économique Canada. La recherche scientifique sur le bruit exige des installations ultramodernes dans un environnement...
Les chercheurs de l'IRSST diffusent un document de travail aux partenaires de recherche du champ bruit et vibrations. Ce document propose un plan triennal faisant état des axes de recherche et des programmations thématiques envisagés pour la période 2012-2014. Le point de vue des partenaires est très important dans ce contexte car il permet de faciliter l'ancrage des futures demandes de subvention éventuelles à l'IRSST dans la prochaine programmation triennale. Votre point de vue nous importe, aussi n'hésitez pas à nous...
Leading experts from the National Institute for Occupational Safety and Health (NIOSH) contribute to this month's special issue of the peer-reviewed journal Noise and Health on state-of-the-art research on hearing protection devices. The March-April issue of Noise and Health is available online at www.noiseandhealth.org . The articles present latest findings in areas where new research is vital for addressing challenges that practitioners, employers, and workers can face in choosing and using proper hearing protection. These include: •Proper fit testing of hearing protectors. •Determining...
La réduction du bruit à la source est la solution à privilégier pour combattre les effets du bruit en milieu de travail. Malgré tout, de par sa simplicité à mettre en oeuvre à par son apparent faible coût, l'utilisation de protecteurs auditifs demeure très populaire. Il devient donc important de bien connaître l'efficacité réelle des protecteurs utilisés en milieu de travail afin de faire des choix judicieux et éclairés. Cependant, de nombreuses études au cours des vingt...
Protégez vos oreilles et vos mains Les outils portatifs pneumatiques génèrent des niveaux de bruit et de vibrations qui, avec les années, peuvent entraîner des effets néfastes sur la santé. La durée et l'intensité de l'exposition au bruit peuvent causer la surdité, tandis que la durée et l'intensité de l'exposition à des vibrations peuvent entraîner le syndrome de Raynaud (blanchiment des doigts) et des troubles musculo-squelettiques. L'IRSST a mesuré les niveaux de bruit et...
A Microphone In Real Ear (MIRE) technique specifically designed to measure Hearing Protection Device (HPD) attenuation in the field has been recently made available on a large scale. Some detailed studies of such measurement system, often referred to as “Field-MIRE” or “F-MIRE” systems, have also made clear that the measurement attenuation for the high frequencies (typically in the 2, 4 and 8 kHz Octave Bands) could become surprisingly variable over time, for a same fit of an HPD on a human subject. After thorough investigation, and because the measurement system itself...
Simulations numériques de l'exposition au bruit professionnel Un modèle analytique original a été utilisé pour simuler l'impact, dans un bilan d'exposition quotidienne au bruit au poste de travail, d'actions de réduction du bruit par des moyens techniques portant sur les machines, sur les postes de travail ou sur les locaux. Validé à l'aide de données réelles, ce modèle a été appliqué à la simulation de plusieurs types de situations d'exposition au bruit professionnel...
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