2010-05-01 12:00 - Messages

Allergie respiratoire professionnelle au cobalt

Le cobalt et ses composés ne sont que très rarement responsables de rhinite et/ou d'asthme professionnels. Dans les secteurs industriels exposant aux poussières de cobalt (principalement fabrication des métaux durs, usinage d'alliages spéciaux et de pièces en carbures métalliques frittés et polissage du diamant mais aussi utilisation de pigments dans l'industrie du verre et de la céramique et synthèse et conditionnement de sels de cobalt), c'est la conjonction d'un tableau clinique d'asthme et d'un poste de travail exposant à la poussière de cobalt qui doit faire évoquer le diagnostic d'asthme au cobalt.
La difficulté d'établir le diagnostic avec certitude du fait des différents mécanismes d'action possibles du cobalt (allergie IgE dépendante, hypersensibilité retardée, irritation...) ne doit pas retarder la mise en place des mesures de prévention.
Le tableau des maladies professionnelles n° 70 du Régime général de la Sécurité sociale indemnise la rhinite et l'asthme au cobalt.
Cette fiche annule et remplace la fiche TR 15, de même titre, et publiée en 1989.

Source: http://www.inrs.fr/inrs-pub/inrs01.nsf/IntranetObject-accesParReference/TR%2048/$File/tr48.pdf

Preventing Exposures to Bloodborne Pathogens among Paramedics

Summary
Patient care puts paramedics at risk of exposure to blood. These exposures carry the risk of infection from bloodborne pathogens such as hepatitis B virus (HBV), hepatitis C virus (HCV), and human immunodeficiency virus (HIV), which causes AIDS.
A national survey of 2,664 paramedics contributed new information about their risk of exposure to blood and identified opportunities to control exposures and prevent infections.

Source : http://www.cdc.gov/niosh/docs/wp-solutions/2010-139/pdfs/2010-139.pdf

Impact of particle emissions of new laser printers on modeled office room

In this study, we present how an indoor aerosol model can be used to characterize particle emitter and predict influence of the source on indoor air quality. Particle size-resolved emission rates were quantified and the source's influence on indoor air quality was estimated by using office model simulations. We measured particle emissions from three modern laser printers in a flow-through chamber. Measured parameters were used as input parameters for an indoor aerosol model, which we then used to quantify the particle emission rates. The same indoor aerosol model was used to simulate the effect of the particle emission source inside an office model.

Atmospheric Environment, Volume 44, Issue 17, June 2010, Pages 2140-2146
Source :

http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VH3-4YN5PP3-1&_user=4494765&_coverDate=06/30/2010&_rdoc=11&_fmt=high&_orig=browse&_srch=doc-info%28%23toc%236055%232010%23999559982%231917760%23FLA%23display%23Volume%29&_cdi=6055&_sort=d&_docanchor=&_ct=14&_acct=C000063264&_version=1&_urlVersion=0&_userid=4494765&md5=0ba97853dd2bba8be5b0ab66eed1d667

Bitumes : l´Agence française de sécurité sanitaire de l´environnement et du travail évalue les risques pour la santé des travailleurs

L´agence française de sécurité sanitaire de l´environnement et du travail (Afsset) a été saisie par la Confédération générale du travail (CGT) dans le but de réaliser une évaluation des risques pour la santé des travailleurs liés à l’usage des bitumes. La saisine de l´Afsset ne porte pas sur le cas d´EUROVIA, mais a une portée générale.

Source: http://www.afsset.fr/index.php?pageid=452&newsid=566&MDLCODE=news

OSHA Reviews the Methylene Chloride Standard

Following a recent review of its Methylene Chloride standard, OSHA indicated that the standard “is succeeding in protecting workers from the effects of methylene chloride exposure such as respiratory and central nervous system failure and cancer.”

Methylene chloride is a volatile, colorless liquid with a chloroform-like odor. It is used in various industrial processes and in many different industries including paint stripping, pharmaceutical manufacturing, paint remover manufacturing and metal cleaning and degreasing.

Source: http://ehstoday.com/standards/osha/osha-reviews-methylene-chloride-standard-5210/

NIOSH and USFA Initiate Study of Cancer among Firefighters

The National Institute for Occupational Safety and Health (NIOSH) and the United States Fire Administration (USFA) are partnering on a study to examine the potential for increased risk of cancer among firefighters due to exposures from smoke, soot, and other contaminants in the line of duty.

This multi-year USFA supported NIOSH study will include over 18,000 current and retired career firefighters. The project will improve upon previously published firefighter studies by significantly increasing the number of individuals for whom health data will be analyzed. A larger study provides greater statistical reliability.

Source: http://www.cdc.gov/niosh/updates/upd-04-23-10.html?s_cid=3ni7d2fb0043020100300pm

The association between overall health, psychological distress, and occupational heat stress among a large national cohort of 40,913 Thai workers

Background: Occupational heat stress is a well-known problem, particularly in tropical countries, affecting workers, health and well-being. There are very few recent studies that have reported on the effect of heat stress on mental health, or overall health in workers, although socioeconomic development and rapid urbanization in tropical developing countries like Thailand create working conditions in which heat stress is likely. Objective: This study is aimed at identifying the relationship between self-reported heat stress and psychological distress, and overall health status in Thai workers. Results: 18% of our large national cohort (>40,000 subjects) often works under heat stress conditions and males are exposed to heat stress more often than females. Furthermore, working under heat stress conditions is associated with both worse overall health and psychological distress (adjusted odds ratios ranging from 1.49 to 1.84). Conclusions: This association between occupational heat stress and worse health needs more public health attention and further development on occupational health interventions as climate change increases Thailand’s temperatures.

Source: http://www.globalhealthaction.net/index.php/gha/article/view/5034

Volatile aldehydes in libraries and archives

Volatile aldehydes are produced during degradation of paper-based materials. This may result in their accumulation in archival and library repositories. However, no systematic study has been performed so far. In the frame of this study, passive sampling was carried out at ten locations in four libraries and archives. Despite the very variable sampling locations, no major differences were found, although air-filtered repositories were found to have lower concentrations while a non-ventilated newspaper repository exhibited the highest concentrations of volatile aldehydes (formaldehyde, acetaldehyde, furfural and hexanal). Five employees in one institution were also provided with personal passive samplers to investigate employees' exposure to volatile aldehydes. All values were lower than the presently valid exposure limits.

Atmospheric Environment, Volume 44, Issue 17, June 2010, Pages 2067-2073
Source : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VH3-4YP0N27-1&_user=4494765&_coverDate=06/30/2010&_rdoc=2&_fmt=high&_orig=browse&_srch=doc-info%28%23toc%236055%232010%23999559982%231917760%23FLA%23display%23Volume%29&_cdi=6055&_sort=d&_docanchor=&_ct=14&_acct=C000063264&_version=1&_urlVersion=0&_userid=4494765&md5=00d3f693325208f9b4ed8e61a80b94f0

Mesothelioma in Australia

Incidence 1982 to 2006, mortality 1997 to 2007
Data on the number of new cases of mesothelioma are collected nationally by the Australian Institute of Health and Welfare (AIHW) in the National Cancer Statistics Clearing House, via the State Cancer Registries. Information on deaths from mesothelioma is also collected by the AIHW as part of the National Mortality Database. Data are available from 1982 to 2006 for the number of new cases, and from 1997 to 2007 for the number of deaths.

Source : http://www.safeworkaustralia.gov.au/NR/rdonlyres/1CFBDAB6-424E-4936-B351-6EBAE8420BB9/0/MesotheliomaInAustralia2010.pdf

Prévenons les cancers professionnels

Dans le cadre du 2e plan Santé travail 2010-2014, un des axes d'intervention majeurs identifié est le développement des actions de prévention des risques professionnels, en particulier du risque chimique, notamment CMR (cancérogènes, mutagènes et toxiques pour la reproduction).
Les partenaires du colloque "Prévenons les cancers professionnels", organisé par l'INRS, étaient l'Agence française de sécurité sanitaire et de l'environnement du travail (AFSSET), l'Institut national de radioprotection et de sûreté nucléaire (IRSN), le Régime social des indépendants (RSI), la Caisse nationale de retraite des agents des collectivités locales (CNRACL), le Réseau national de vigilance et de prévention des pathologies professionnelles (RNV3P), la Direction des risques professionnels de la Caisse nationale de l'assurance maladie des travailleurs salariés (DRP-CNAMTS), la Mutualité sociale agricole (MSA), l'Institut national du cancer (INCa), la Direction générale du travail au ministère du Travail, des Relations sociales, de la Famille, de la Solidarité et de la Ville (DGT) et l'Association médecine et santé au travail de Lille (AMEST).

Source : http://www.dmt-prevention.fr/inrs-pub/inrs01.nsf/IntranetObject-accesParReference/TD%20167/$File/TD167.pdf

Les nanoparticules de synthèse - Connaissances actuelles sur les risques et les mesures de prévention en SST

La nanotechnologie est un domaine en pleine effervescence et de nouveaux produits contenant des nanoparticules sont mis en marché chaque semaine. On en compte déjà plus de 800 qui sont commercialement disponibles. Or, le développement de ces nanoparticules, leur préparation industrielle et leur intégration dans différents produits impliquent déjà une exposition professionnelle potentielle de centaines de travailleurs québécois. De nouvelles entreprises québécoises introduisent ce domaine, accroissant du fait même le nombre de travailleurs potentiellement exposés. Cette tendance devrait se poursuivre pendant plusieurs années.

Un premier bilan de l'état des connaissances scientifiques relatives aux aspects de santé et de sécurité du travail (SST) reliées aux nanoparticules de synthèse (NP) avait été publié par l'IRSST en 2006 et couvrait la littérature scientifique jusqu'à la fin 2004. Il en ressortait que les connaissances en SST étaient très fragmentaires mais que la recherche dans ce domaine était en croissance rapide. Le présent document vise à faire le point sur l'état des connaissances actuelles dans le domaine et fait une synthèse des données disponibles jusqu'en fin 2009.

Source: http://www.irsst.qc.ca/files/documents/PubIRSST/R-646.pdf

 

La RFID (radio frequency identification)

Cette fiche fait partie d'une collection consacrée aux risques liés aux champs électromagnétiques.
Au sommaire :
- principe de fonctionnement des RFID (radio frequency identification) ;
- applications de la RFID ;
- exposition aux champs électromagnétiques à proximité des systèmes RFID ;
- intensité des champs électromagnétiques émis par les dispositifs RFID ;
- effets biologiques des RFID (évaluation sanitaire de la technologie RFID) ;
- évaluation du risque, préconisations.

Source : http://www.inrs.fr/publications/ED4217.html

Decontamination of agricultural sprayers

It is now recognised that pesticide residues on the external surfaces of sprayers could present a significant route of exposure for the spray operator and these residues exist despite sprayers being washed. The current study was undertaken to examine factors influencing the removal of residues from sprayer surfaces, to trial any developments on decontamination techniques on working farms, and to quantify operator exposure to pesticides during the actual washing process.

Source : http://www.hse.gov.uk/research/rrhtm/rr792.htm

The burden of occupational cancer in Great Britain

The aim of this project was to produce an updated estimate of the current burden of occupational cancer specifically for Great Britain. The primary measure of the burden of cancer used in this project was the attributable fraction (AF) i.e. the proportion of cases that would not have occurred in the absence of exposure; this was then used to estimate the attributable numbers. This involved obtaining data on the risk of the disease due to the exposure of interest, taking into account confounding factors and overlapping exposures, and the proportion of the target population exposed over the period in which relevant exposure occurred. Estimation was carried out for occupational exposures classified by the International Agency for Research on Cancer (IARC) as group 1 (established) and 2A carcinogens (probable).

Source : http://www.hse.gov.uk/research/rrhtm/rr800.htm

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