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Occupational exposure to electromagnetic fields from medical sources
High exposures to electromagnetic fields (EMF) can occur near certain medical devices in the hospital environment. A systematic assessment of medical occupational EMF exposure could help to clarify where more attention to occupational safety may be needed. This paper seeks to identify sources of high exposure for hospital workers and compare the published exposure data to occupational limits in the European Union. A systematic search for peer-reviewed publications was conducted via PubMed and Scopus databases. Relevant grey literature was collected via a web search. For each publication, the highest...
Expositions aux champs électromagnétiques
Repères en santé au travail Omniprésents dans l'environnement quotidien et en milieu de travail, les champs électromagnétiques (CEM) suscitent des interrogations et parfois des inquiétudes quant aux risques qu'ils peuvent faire encourir aux personnes. Si les effets biophysiques avérés sur l'homme sont bien connus, il reste parfois difficile pour un non spécialiste de faire la part des choses entre les effets tels qu'ils peuvent être rapportés par les travailleurs et leur relation avec la présence...
Exposition aux champs électromagnétiques au travail
Objectifs: La caractérisation des expositions aux ondes électromagnétiques est indispensable dans le cadre de l'évaluation d'un possible risque et pour assurer le suivi adéquat des populations de travailleurs possiblement exposées. L'objectif de ce projet est de décrire les conditions d'exposition aux champs électromagnétiques pour différents postes de travail en bibliothèques et médiathèques. Méthodes: Le protocole permet des mesures discriminant les multiples fréquences aux...
Development of a source-exposure matrix for occupational exposure assessment of electromagnetic fields in the INTEROCC study
To estimate occupational exposures to electromagnetic fields (EMF) for the INTEROCC study, a database of source-based measurements extracted from published and unpublished literature resources had been previously constructed. The aim of the current work was to summarize these measurements into a source-exposure matrix (SEM), accounting for their quality and relevance. A novel methodology for combining available measurements was developed, based on order statistics and log-normal distribution characteristics. Arithmetic and geometric means, and estimates of variability and maximum exposure were...
Case-control study on occupational exposure to extremely low-frequency electromagnetic fields and glioma risk
Background: Exposure to extremely low-frequency electromagnetic fields (ELF-EMF) was in 2002 classified as a possible human carcinogen, Group 2B, by the International Agency for Research on Cancer at WHO. Methods: Life time occupations were assessed in case-control studies during 1997-2003 and 2007-2009. An ELF-EMF Job-Exposure Matrix was used for associating occupations with ELF exposure (μT). Cumulative exposure (μT-years), average exposure (μT), and maximum exposed job (μT) were calculated. Results: Cumulative exposure gave for astrocytoma grade IV (glioblastoma multiforme) in the...
Occupational exposure to extremely low-frequency magnetic fields and risk for central nervous system disease
An update of a Danish cohort study among utility workers Purpose: Evidence of whether exposure to extremely low-frequency magnetic fields (ELF-MF) is related to central nervous system diseases is inconsistent. This study updates a previous study of the incidence of such diseases in a large cohort of Danish utility workers by almost doubling the period of follow-up. Methods: We investigated the risks for dementia, motor neurone disease, Parkinson disease, multiple sclerosis and epilepsy among 32,006 men employed at the 99 utility companies that supplied Denmark with electricity during the period...
Parkinson’s disease and occupational exposures
A systematic literature review and meta-analyses Objectives: We conducted a systematic literature review to identify studies fulfilling good scientific epidemiological standards for use in meta-analyses of relevant risk factors for Parkinson's disease. Methods: Our search identified 103 original publications on associations between work and Parkinson's disease. GRADE guidelines were used to ensure high scientific quality, and reliable guidelines were applied to classify the papers. Of the 103 articles, 47 fulfilled good scientific standards while 56 were methodologically deficient and thus...
Rayonnements optiques & électromagnétiques au travail
Pour accompagner les entreprises dans l'amélioration de la prévention des risques professionnels, l'INRS a organisé le colloque " Rayonnements optiques & électromagnétiques - De l'exposition à la prévention " en octobre 2015 à Paris. Durant trois jours, ce colloque a rassemblé près de 300 participants de profils variés : médecins du travail, IPRP, préventeurs d'entreprise, préventeurs institutionnels, scientifiques, consultants, bureaux d'études, organismes...
Guide to the Electromagnetic Fields Regulations 2016
Electromagnetic fields are generated whenever electricity is used. These guidelines explain the main provisions of the Safety, Health and Welfare at Work (Electromagnetic Fields) Regulations, 2016 (S.I. No. 337 of 2016) in a user friendly way. Source: http://www.hsa.ie/eng/Publications_and_Forms/Publications/Latest_Publications/Guide_to_the_Electromagnetic_Fields_Regulations_2016.71995.shortcut.html
Staff exposure to pulsed magnetic fields during depression treatment with transcranial magnetic stimulation
Introduction. Transcranial magnetic stimulation or repetitive transcranial magnetic stimulation (TMS/rTMS) are currently used in research and treatments of diseases of the central nervous system, such as recurring depression. Strong electric pulses are used to produce strong pulsed magnetic fields that are directed to the patient's cerebral cortex where the fields induce electric pulses. The pulses may be causing unnecessary exposure of the staff. Method. The MagVenture TMS/rTMS system was investigated, without patient presence, through measurements of magnetic field pulses at varying distances...
Health Effects of Electromagnetic Fields on Reproductive-Age Female Operators of Plastic Welding Machines in Fuzhou, China
Objective: The aim of this study was to investigate the health effects of electromagnetic fields (EMFs) among female operators of plastic welding machines. Methods: We examined 180 female operators in shoe factories as the exposed group, and 349 female workers from nearby supermarkets as the unexposed group. Results: The mean radiation levels in the vicinity of the welding machines ranged from 51.3 to 368.9?V/m. The prevalence of neurovegetative symptoms increased with higher EMFs exposures (P?<?0.05). The prevalence of menstrual disorder was 12.0% in the unexposed group, but was 26.8% and 33...
Deux guides pratiques pour aider les employeurs à se conformer à la directive "champs électromagnétiques"
La Commission européenne vient d'éditer deux guides pratiques pour aider les employeurs à comprendre ce qu'ils devront mettre en œuvre pour se conformer à la directive 2013/35/UE sur les champs électromagnétiques. Cette directive devra être transposée en droit national de tous les États membres de l'UE le 1er juillet 2016. Le guide se compose de deux volumes. Le premier volume contient un ensemble d'indications non-contraignantes destinées à éclairer les entreprises sur la manière d'évaluer...
Exposure to MRI-related magnetic fields and vertigo in MRI workers
Objectives: Vertigo has been reported by people working around magnetic resonance imaging (MRI) scanners and was found to increase with increasing strength of scanner magnets. This suggests an association with exposure to static magnetic fields (SMF) and/or motion-induced time-varying magnetic fields (TVMF). This study assessed the association between various metrics of shift-long exposure to SMF and TVMF and self-reported vertigo among MRI workers. Methods: We analysed 358 shifts from 234 employees at 14 MRI facilities in the Netherlands. Participants used logbooks to report vertigo experienced...
Les champs électromagnétiques
Présents dans toutes les activités professionnelles mais principalement dans le secteur industriel, les rayonnements électromagnétiques ne sont pas sans conséquences sur la santé. S'il est avéré qu'ils sont déjà à l'origine de certains effets à court terme, ils sont également soupçonnés d'en provoquer d'autres à plus long terme. Source: Travail & Sécurité , octobre 2015, n° 765. http://www.travail-et-securite.fr/ts/dossier/champs%20electromagnetiques...
Exposure to static magnetic fields and risk of accidents among a cohort of workers from a medical imaging device manufacturing facility
PURPOSE: To study the association between occupational MRI-related static magnetic fields (SMF) exposure and the occurrence of accidents. METHODS: Recent and career SMF exposure was assessed by linking a retrospective job exposure matrix to payroll based job histories, for a cohort of (former) workers of an imaging device manufacturing facility in the Netherlands. Occurrence of accidents was collected through an online questionnaire. Self-reported injuries due to accidents in the past 12 months, and the first (near) traffic accident while commuting to work and from work were analyzed with logistic...
Risques physiques et travail
Journée de la société française de médecine du travail (SFMT), Paris, 10 octobre 2014 Cette journée de la Société française de médecine du travail (SFMT) a permis de présenter les actualités relatives à plusieurs risques physiques : les rayonnements optiques, les vibrations, les champs électromagnétiques d'origine professionnelle et environnementale et les rayonnements ionisants. Source: http://www.inrs.fr/media.html?refINRS=TD%20217
Potential health effects of exposure to electromagnetic fields (EMF)
The results of current scientific research show that there are no evident adverse health effects if exposure remains below the levels recommended by the EU legislation. Overall, the epidemiological studies on radiofrequency EMF exposure do not show an increased risk of brain tumours. Furthermore, they do not indicate an increased risk for other cancers of the head and neck region. Previous studies also suggested an association of EMF with an increased risk of Alzheimer's disease. New studies on that subject did not confirm this link. Epidemiological studies associate exposure to Extremely Low...
Electromagnetic fields in working life
A guide to risk assessment Ce guide s'adresse aux employeurs, aux représentants syndicaux et, bien entendu, aux travailleurs potentiellement exposés aux champs électromagnétiques. Il a également été conçu en vue de contribuer à la compréhension de la nouvelle directive de l'UE sur l'exposition des travailleurs aux CEM (2013/35/UE), qui entrera en vigueur en 2016. Ce guide présente un aperçu de l'exposition professionnelle aux champs électromagnétiques en fonction de la fréquence...
Electromagnetic Fields (EMF) in the welding environment
The Electromagnetic fields (EMF) Directive (2013/35/EU) was adopted in June 2013. Member States are required to bring into force any laws, regulations and or administrative provisions necessary to comply with the Directive by July 1st, 2016. This research report considers various types of welding and the requirements of the Directive. The report provides: - A review of available literature using the TWI “Weldasearch” database and other sources - Measurements of the EMF emissions welders may be exposed to during the welding processes - Understanding where welding fits in with the requirements...
Champs électromagnétiques : la nouvelle directive européenne
Une directive européenne vient préciser les seuils d'exposition aux champs électromagnétiques. La démarche d'évaluation des risques qu'elle propose doit permettre une meilleure prise en compte de la santé des salariés. Tour d'horizon des nouvelles dispositions. Source: http://www.hst.fr/inrs-pub/inrs01.nsf/IntranetObject-accesParReference/HST_DC%205/$File/Visu.html
Intolérance environnementale idiopathique attribuée aux champs électromagnétiques
L'exposition aux champs électromagnétiques est de plus en plus présente en milieu professionnel, liée à de nombreuses avancées technologiques. Après un rappel des connaissances indispensables, cet article permet de faire le point sur le syndrome d'intolérance environnementale idiopathique attribué aux champs électromagnétiques, le tableau clinique, ses étiologies et sa prise en charge. Source : http://www.rst-sante-travail.fr/rst/pages-article/ArticleRST.html?ref=RST.TC%20145
EU-New Directive to protect EU workers from harmful electromagnetic fields
The Directive clarifies the definitions of adverse effects on health, introduces an updated exposure limits system (frequencies that are recognised as having harmful effects on the human cardiovascular system or the central nervous system), as well as a number of provisions to make it easier for employers to carry out the risk assessments required by law. The directive was published in the Official Journal on 29 June 2013 and has to be transposed into national legislation by 1 July 2016. As employers are obliged to carry out risk evaluations, the proposal introduces detailed provisions to ensure...
Exposition aux champs électromagnétiques
Générées par de multiples applications industrielles, les champs électromagnétiques sont susceptibles d’altérer la santé des travailleurs exposés. Afin d’aider les entreprises à évaluer et à prévenir ces risques, l’INRS publie en coopération avec l'INERIS une nouvelle brochure à visée opérationnelle (de référence ED 6136). Source : http://www.inrs.fr/accueil/header/actualites/brochure-risque-champ-electromagnetique.html
Les réseaux sans fils de proximité : champs électromagnétiques
Cette fiche : - présente et décrit les principales technologies utilisées dans les réseaux sans fil de proximité ; - donne les valeurs de niveaux de champs électriques mesurés à proximité de matériels typiques et les valeurs de références définies par la recommandation du Conseil 1999/519/CE du 12 juillet 1999 (relative à la limitation de l'exposition du public aux champs électromagnétiques) et 2004/40/CE du 29 avril 2004 (relatives à l'exposition des travailleurs) sur...
Exposure to electromagnetic fields from laptop use of "laptop" computers
"Portable computers are often used at tight contact with the body and therefore are called "laptop." The authors measured electromagnetic fields (EMFs) laptop computers produce and estimated the induced currents in the body, to assess the safety of laptop computers. The authors evaluated 5 commonly used laptop of different brands. They measured EMF exposure produced and, using validated computerized models, the authors exploited the data of one of the laptop computers (LTCs) to estimate the magnetic flux exposure of the user and of the fetus in the womb, when the laptop is used at...
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