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Par Pascale LE GURUN DRAYTON Le 18 Janvier 2022 |
Let's talk about a subject that concerns everyone and that should not be underestimated. Noise is a source of pollution for our health. Although deafness is not necessarily work-related, there are multifactorial contributions to the damage. According to a 2014 DREES survey, more than 7 million French people are affected by a disability, that is 11.2% and around 11.5% of people admit having difficulties hearing a conversation with several people. In terms of Occupational Accident/Occupational Disease claims on occupational risks, the AMELI report indicates that the majority of the sectors audited are affected by occupational deafness.
This is why Preventing deafness means protecting yourself with appropriate protection. Find the key points to know everything and how to choose noise protection plugs. Before any choice, it is necessary to understand all the parameters relating to noise in order to better adapt the protection.
Hence the need to make a few reminders on the importance of noise levels, effects on the human body, risks, noise regulations, and the importance of applying the nine prevention principles before starting a preventive approach to using hearing protection equipment!Scale of noise levels in dB(A) with frequencies that are harmful to hearing
Note that the longer the exposure to noise levels exceeding 85 decibels, the greater the damage. The risk of deafness is high especially if the person does not wear hearing protection. The effects of noise on the human body are not only auditory but can cause malfunctions on the human body
The effects on hearing are irreversible. On the other hand, the others malfunctions stop as soon as the noise is no longer present. Find an explanation of the effects of noise on humans beings on this video. Regulatory requirements in terms of exposure values and preventive measures at work
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Daily exposure (Lex, 8 h) |
Peak level
(LpC) |
Obligations of the employer
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whatever the level
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- Risk assessment- Elimination or minimization of risks related to minimum exposure to noise |
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Lower exposure value triggering action (VAI)
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80 dB(A) |
135 dB(C) |
- Provision of individual hearing protectors (earplugs, noise canceling headphones, etc.)- Preventive audiometric examination at the request of the worker or the doctor- Information and training of workers |
Upper exposure value triggering action (VAS)
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85 dB(A) |
137 dB(C) |
- Program of technical or work organization measures aimed at reducing exposure to noise- Appropriate signage, limiting access to noisy areas- Effective wearing of individual hearing protectors- Reinforced medical surveillance of exposed workers |
Exposure Limit Value (VLE)taking into account the attenuation of noise provided by the hearing protector worn by the worker |
87 dB(A) |
140 dB(C) |
- Immediate adoption of measures to reduce the level of noise exposure to values below the limit values- Identification of the causes of excessive exposure and adaptation of protective measures |
At work, at home, in the street... Noise is present in our daily lives in any activity, whether professional (industry, metallurgy, agri-food, etc.) or personal (DIY, gardening, concerts, etc.). Each activity requires questioning the noise emitted by tools and machines. Who would have thought that a screwdriver/unscrewer could emit 85 decibels and a hammer drill 95 decibels! The exposure, the type, the power of the noise level of the devices that are used without forgetting the duration of the work are the first elements to take into account. Each device has a technical sheet indicating its noise levels and nuisances.This is why the protection must meet your expectations and your needs. Many parameters must be taken into account when choosing plugs in order to limit exposure to noise.The choice is initially based on acoustic performance criteria (CE mark, guaranteed and compliant with regulations) taking into account the recommended attenuation in relation tothe level of sound exposure. Then, the subjective criteria linked to the person are essential so that they are worn and adapted to the morphology of the person (compatibility, work environment, earplug materials, hygiene, hearing disorders).In a second step, the choice concerns the level of sound protection desired in relation to the nature, the exposure, the intensity of the noise, the activity and the place in which the person works.And finally, there are different types of hearing protection models depending on the frequency of use, the usefulness and the comfort they can provide:
Model |
Visual |
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Disposable caps to shape(foam)
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Reusable preformed caps (with or without cord)
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Poles with caps or preformed plugs
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Noise canceling headphones
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Shells mounted on safety helmet
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Individual molded caps |
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Once the protection has been defined, each model has its own instructions for wearing them and hygiene recommendations. If it comes to corks to be formed, it is essential to know “How to wear them well! ".Thanks to this article, you have all the information to protect yourself and preserve your hearing capital by wearing hearing protection adapted to your activity.Prevention, whether individual or collective, would it not be the best weapon to prevent deafness! Bibliographic sources
Internet links :
- Cotral, “8 key points for choosing your hearing protectors”, White Paper. Address
URL https://www.cotral.fr/outils.html (site consulted the 29 december 2021)
- Department of research, studies, evaluation and statistics – DREES, Laurence HAEUSLER, Thibaud DE LAVAL, Charlotte MILLOT, “Quantitative study on hearing impairment based on the “Handicap-Santé” survey”, Working document Research Studies Series, N°131, August 2014, p11-12. Address URL https://drees.solidarites- sante.gouv.fr/sites/default/files/2020-09/dt131.pdf
(Site consulted the 20 december 2021)
- National health insurance fund – Occupation Risk Department –« Claims statistics 2018 all CTN et par CTN », Study 2020-037-CTN, february 2020. Address URL https://www.ameli.fr/sites/default/files/2018_at-tr-mp-fiches-selon-ctn.pdf (site consulted the 22 december 2021)
- Institute for Research and Innovation on occupational Health and Safety (IRIS-ST), "Scale of noise levels in dB(A) with frequencies that are harmful to hearing", Case/Risks/Noise/Noisy Environment, Address URL http://www.iris-st.org/risques-3/bruit-23.php
- Aisne management center – NEERIA, Meeting of prevention assistants/Advisers « Atmosphere factors (noise, vibration, light, ventilation) », 18 september 2018, p13, Others effects of noise. Adresse URL http://www.cdg02.fr/doc/Facteurs_ambiance_CDG02.pdf (site consulted the 22 december 2021)
- National Institute for Reseach and Security - INRS, « Health effects », Health and Security at work, Case noise, 2020. Address URL https://www.inrs.fr/risques/bruit/effets-sante.html (site consuled the 27 december 2021
- National Institute for Reseach and Security - INRS, « Understand everything about noise », Address URL https://www.youtube.com/watch?v=DFGU0yaD9vo (video viewed on 24 January 2022)
- South Alsace Occupational Health Service, «What the regulations tell us ». Address URL https://employeurs.stsa.fr/se-documenter/risques-bruit/ (site consulted the 27 december 2021)
- National Institute for Reseach and Security - INRS, « Prevention approach», Health and Security at work, Case Noise, 2021. Address URL https://www.inrs.fr/risques/bruit/demarche-prevention.html (site consulted the 27 december 2021)
- Prevention BTP, « Prevention against noise at work : Individual hearing protection », Prevention Approach, 28 september 2020. Address URL https://www.preventionbtp.fr/ressources/solutions/prevention-contre-le-bruit-au-travail-les-protections-auditives-individuelles (site consuled the 29 december 2021)
- National Institute for Reseach and Security - INRS, « Comment choisir son protecteur individuel contre le bruit (picb) ? », Santé et Sécurité au Travail, Form HST, N°233, June 2013. Address URL https://www.inrs.fr/media.html?refINRS=FI%201
- National Institute for Reseach and Security - INRS, « How to correctly insert your form caps », Health and Security at work, Picture, July 2013. Address URL https://www.inrs.fr/media.html?refINRS=A%20762 (site consulted the 29 december 2021)
- Captures of images taken on different sites on noise. Address URL Smiley who covers the ears :
Noise risk prevention poster – INRS :
https://www.inrs.fr/media.html?refINRS=A%20839 ;
Smiley whith helmets : https://www.alamyimages.fr/smiley-avec-casque-antibruit-image8848345.html ;
Noise hazard warning side : https://www.signaletique-express.fr/panneau-danger-du-au-bruit-p-76-6420.html ;
Tricolore noise scale : https://www.istockphoto.com/fr/vectoriel/smileys-rouges-jaunes-et-verts-gm1048860390-280527309 ;
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