Parcourir par tags

Tous les tags » Poussières (RSS)
Le captage des poussières
Dans de nombreux secteurs, l'activité professionnelle est source d'expositions à des poussières dont les effets sur la santé peuvent être variés selon le type de poussières et d'exposition : irritation respiratoire, allergie, fibrose pulmonaire, cancer… La ventilation et l'aspiration à la source sont les piliers d'une prévention efficace. Source: (2019). Travail & Sécurité (807). http://www.travail-et-securite.fr/ts/dossier/LE%20CAPTAGE%20DES%20POUSSI%C3%88RES.html
Heme oxygenase 1 polymorphism, occupational vapor, gas, dust, and fume exposure and chronic obstructive pulmonary disease in a Danish population-based study
Objectives: The number of dinucleotide repeats (GT)n modulate expression of heme oxygenase 1 (HMOX1), a stress response gene. Multiple repeats might affect chronic obstructive pulmonary disease (COPD) susceptibility. We aimed to investigate the association of this polymorphism with COPD and its interaction with occupational exposures (vapor, gas, dust, or fumes). Methods: This population-based cross-sectional study included 4703 Danes, aged 45–84 years. HMOX1 (GT)n was genotyped and grouped as short: ≤26, medium: 27–32 and long: ≥33 alleles. COPD was defined by the lower limit...
Transformation du granit - Caractérisation et contrôle de la poussière de la silice émise par le polissage
La présente étude contribue à l'avancement des connaissances nécessaires pour déterminer des moyens d'élimination et de réduction à la source des poussières fines et ultrafines contenant de la silice cristalline et qui sont émises lors de la transformation du granit. L'élimination et la réduction à la source des émissions sont les moyens privilégiés pour assurer un environnement de travail sain et sécuritaire; l'utilisation des équipements de protection individuelle...
Effects of occupational exposure to respirable quartz dust on acute myocardial infarction
Objectives: The aim of this study is to investigate the effects of occupational exposure to respirable quartz (RQ) on first acute myocardial infarction (AMI). RQ causes pulmonary diseases like silicosis and has also been linked to cardiovascular diseases. Inflammation is hypothesised as the underlying pathway. Methods: We performed a 1:3 matched case–control study nested in a cohort of male uranium miners. We included cases (identified from hospital records and validated according to WHO criteria) who had suffered their first AMI while still employed and <65 years of age. Controls were...
Occupational Exposure to Vapor-Gas, Dust, and Fumes in a Cohort of Rural Adults in Iowa Compared with a Cohort of Urban Adults
Problem/Condition: Many rural residents work in the field of agriculture; however, employment in nonagricultural jobs also is common. Because previous studies in rural communities often have focused on agricultural workers, much less is known about the occupational exposures in other types of jobs in rural settings. Characterizing airborne occupational exposures that can contribute to respiratory diseases is important so that differences between rural and urban working populations can be assessed. Reporting Period: 1994–2011. Description of System: This investigation used data from the baseline...
Investigation of the occupational health and safety conditions in Hellenic solid waste management facilities and assessment of the in-situ hazard level
Due to tenuous working conditions and working accidents in the past, sufficient safety measures for the personnel in certain solid waste management facilities are deemed a necessity. Besides the fact that such facilities are equipped with heavy machinery associated with safety risks, the working environment poses additional health risks to the personnel, due to their exposure to various waste-derived emissions. Therefore, it is required to establish and preserve the safety and hygienic conditions but also to equip and train their personnel during all waste treatment and management stages. Presented...
Poussières. Guide de bonnes pratiques en démolition
Ce guide a pour objectif de capitaliser les bonnes pratiques sur les chantiers de démolition permettant, d'une part, de réduire les expositions des opérateurs aux poussières et, d'autre part, de diminuer les émissions dans l'environnement. Il est destiné à sensibiliser les entreprises, les maîtres d'ouvrage et les maîtres d'oeuvre sur les expositions aux poussières et les informer sur les techniques adaptées pour les prévenir. Il a été rédigé dans le cadre d'un partenariat...
NIOSH Releases Updated Hazard Assessment Software
EVADE Software Expanded to Identify Multiple Hazardous Exposures. The latest version of the EVADE software has been expanded to show mine workers exactly where they are being exposed to hazards on the job, and therefore where an intervention can be effective. When mines try to reduce harmful exposures to their workers, it's often a matter of guesswork and trial and error not only to pinpoint the sources, but to know where fixes might offer the greatest impact. EVADE puts the power to identify and then correct exposure hazards in the hands of mine operators. While NIOSH originally developed...
Explosions sur le lieu de travail
Une explosion sur le lieu de travail a souvent des conséquences terribles, sur le plan tant humain que matériel et économique. Les activités qui impliquent des manipulations de produits chimiques ou de poussières combustibles sont les plus concernées. La priorité est toujours d'empêcher la formation du phénomène. Et s'il survient néanmoins, d'en atténuer les effets. Source: Travail & Sécurité , Numéro 774, Juillet-août 2016. http://www.travail-et-securite.fr/ts/dossier/Atmosph...
Feedback on Measured Dust Concentrations Reduces Exposure Levels Among Farmers
Background: The high burden of exposure to organic dust among livestock farmers warrants the establishment of effective preventive and exposure control strategies for these workers. The number of intervention studies exploring the effectiveness of exposure reduction strategies through the use of objective measurements has been limited. Objective: To examine whether dust exposure can be reduced by providing feedback to the farmers concerning measurements of the exposure to dust in their farm. Methods: The personal dust levels of farmers in 54 pig and 26 dairy cattle farms were evaluated in two measurement...
Captage des poussières de silice sur les chantiers de rabotage routier aux États-Unis
En France, pour diminuer l'exposition à la silice lors des travaux de recyclage routier, il est conseillé d'équiper les raboteuses d'un dispositif de captage des poussières. Aux États-Unis, des mesures ont été réalisées en atelier et sur le terrain sur le sujet depuis 2003 et ont fait l'objet d'une publication (NIOSH 2015-105)2. Une efficacité de captage des poussières supérieure à 90 % est préconisée. Un protocole de vérification de cette efficacité a été...
Inflammatory Markers and Genetic Polymorphisms in Workers Exposed to Flour Dust
Objective: The aim of this study is to evaluate inflammatory markers and pro-inflammatory CD14 and Toll-like Receptor 4 (TLR4) polymorphisms in workers exposed to flour dust. Methods: Polymorphisms in TLR4 and CD14 were identified in our study population of 167 workers that included 63 healthy subjects (HS), 45 atopic subjects (A), and 59 subjects diagnosed clinically with occupational asthma/rhinitis (OAR). Endpoint measures in this study included fractional exhaled nitric oxide and serum concentrations of interleukin IL-6, IL-8, and tumor necrosis factor-alpha (TNF-α). Results: We identified...
Pulmonary illness as a consequence of occupational exposure to shrimp shell powder
OBJECTIVES: An employee with no prior history of allergy or asthma, experienced respiratory and flu-like symptoms during production of shrimp shell powder in a seafood savory factory in Norway. We aimed to clarify the diagnosis and to identify the cause of the symptoms by specific inhalation challenge (SIC) and by characterizing the powder's biocontaminants, particle size fractions and inflammatory potential. METHODS: Respiratory and immunological responses were measured the day before and after each of four challenges with 20-150g shrimp shell powder during three consecutive days. The powder...
A case-control study of airways obstruction among construction workers
Background: While smoking is the major cause of chronic obstructive pulmonary disease (COPD), occupational exposures to vapors, gases, dusts, and fumes (VGDF) increase COPD risk. This case-control study estimated the risk of COPD attributable to occupational exposures among construction workers. Methods: The study population included 834 cases and 1243 controls participating in a national medical screening program for older construction workers between 1997 and 2013. Qualitative exposure indices were developed based on lifetime work and exposure histories. Results: Approximately 18% (95%CI ...
Pulmonary Inflammation in Foundry Workers
Objective: To assess whether cumulative dust exposure in foundry work is associated with airway inflammation measured by the analysis of fractionated exhaled nitric oxide (NO) concentration, or by inflammatory markers in exhaled breath condensate or serum. Methods: We examined 476 dust-exposed and nonexposed foundry workers, and assessed the individual cumulative exposure to dusts and respirable quartz. Bronchial and alveolar NO production and inflammatory markers in exhaled breath condensate and in serum samples were also analyzed. Results: After adjusting for pack-years of smoking, increased...
Occupational exposure to wood dust and risk of lung cancer in two population-based case-control studies in Montreal, Canada
Background: Wood dust is one of the oldest and one of the most common occupational exposures in the world. The present analyses examine the effect of lifetime exposure to wood dust in diverse occupational settings on lung cancer risk. Methods: We conducted two population-based case–control studies in Montreal: Study I (1979–1986) included 857 cases and two sets of controls (533 population and 1349 cancer controls), and Study II (1996–2001) comprised 736 cases and 894 population controls. Detailed job histories were obtained by interview and each job was evaluated by expert chemist–hygienists...
Le syndrome toxique des poussières organiques
Presque 40 ans après le premier cas authentifié, le syndrome toxique des poussières organiques (ODTS) reste encore aujourd'hui une pathologie dont l'épidémiologie est mal connue et les mécanismes physiopathologiques hypothétiques. La définition clinique reposant sur l'association d'un syndrome pseudogrippal, centré par l'existence d'une fièvre, et de symptômes respiratoires lors de l'exposition à des environnements fortement contaminés en poussières organiques (milieu agricole...
Understanding how to improve the management of exposure to wood dust amongst construction sub-contractors and manufacturing SMEs
Literature review Available evidence was reviewed to develop a better understanding of how to improve the management of wood dust exposure in small and medium-sized construction and manufacturing enterprises (SMEs). There was a paucity of research, with most papers exploring the factors that broadly influence health and safety (H&S) management in SMEs. Factors that influence SMEs' behaviours, included: - i) limited resources (particularly for small construction and wood working companies), - ii) a poor awareness of the importance of ill-health prevention, - iii) risk control advice from...
Dust, Endotoxin, Fungi, and Bacteria Exposure as Determined by Work Task, Season, and Type of Plant in a Flower Greenhouse
Background: Greenhouse workers are exposed to dust, endotoxin, fungi, and bacteria potentially causing airway inflammation as well as systemic symptoms. Knowledge about determinants of exposure is a prerequisite for efficient prevention through knowledge-based reduction in exposure. The objective of this study was to assess the occupational exposure in a flower greenhouse and to investigate the impact of work tasks on the intensity and variability in exposure. Methods: Seventy-six personal full-shift exposure measurements were performed on 38 employees in a Danish flower greenhouse producing Campanula...
Change in airway inflammatory markers in Danish energy plant workers during a working week
Introduction: It is well known that exposure to organic dust can cause adverse respiratory effect. The pathogen-associated molecular patterns (PAMPS) in the organic dust, such as endotoxin from Gram-negative bacteria cell wall and fungal components, can trigger the release of cytokine (e.g. Interleukin 1 beta (IL-1 beta)) and chemokine (e.g. Interleukin 8 (IL-8)) from the immune cells in the airways. Objective: To evaluate the potential inflammatory effects of organic dust exposure in energy plants in Denmark. Materials and methods: Nasal lavage (NAL) and exhaled breath condensate (EBC) were sampled...
Respiratory symptoms and lung function abnormalities related to work at a flavouring manufacturing facility
Objectives: To better understand respiratory symptoms and lung function in flavouring manufacturing workers. Methods: We offered a questionnaire and lung function testing to the current workforce of a flavouring manufacturing facility that had transitioned away from diacetyl and towards substitutes in recent years. We examined symptoms, spirometric parameters and diffusing capacity measurements by exposure variables, including facility tenure and time spent daily in production areas. We used linear and logistic regression to develop final models adjusted for age and smoking status. Results: A total...
Mica Dust and Pneumoconiosis
Example of a Pure Occupational Exposure in a Muscovite Milling Unit Objective: We present pulmonary disorders of four employees who were exposed to high concentration of pure mica dust in a muscovite milling unit. Method: All cases underwent traditional examinations with a dual-energy chest computed tomographic scan. An analysis of exhaled breath condensate by Raman microspectrometry and of mineralogical content of a lung biopsy was performed for one case. Results: All cases showed bilateral micronodular ground glass opacities and mediastinal and hilar hyperdense lymph nodes consistent with the...
Un guide dédié aux professionnels de la menuiserie
Le FCBA vient d’éditer un guide pratique pour aider les professionnels de la menuiserie à mieux prévenir le risque incendie lors de travaux de rénovation intérieure de bâtiments. Ce guide a été conçu pour mieux informer et sensibiliser à la sécurité incendie les professionnels de la menuiserie et de l’agencement lorsqu’ils interviennent sur un chantier en l’absence de maîtrise d’œuvre. Source : http://www.preventica.com/actu-enbref-guide-professionnels-menuiserie-1250913...
Occupational Hygiene implications of processing waste at Materials Recycling Facilities (MRFs): Exposure to bioaerosol and dust - RR977
This report presents the findings of a study to investigate exposures to dust and its microbiological components amongst workers employed at Materials Recycling Facilities (MRFs). The report shows the potential for workers to be exposed to general airborne dust above the level where it is considered a substance hazardous to health (10 mg/m3 as an 8-hr TWA). Also, there is the potential for exposure to fungi and bacteria, as well as endotoxins, which are agents known to have harmful effects on human health. Endotoxin exposures may be at levels greater than the health-based limit identified by the...
Work-related allergic respiratory disease and asthma in spice mill workers is associated with inhalant chili pepper and garlic exposures
Objective The aim of the study was to determine the prevalence and risk factors for allergic respiratory disease in spice mill workers. Methods A cross-sectional study of 150 workers used European Community Respiratory Health Survey questionnaires, Phadiatop, serum specific IgE (garlic, chili pepper), spirometry and fractional exhaled nitric oxide (FeNO). Personal air samples (n=62) collected from eight-hour shifts were analysed for inhalable particulate mass. Novel immunological assays quantified airborne garlic and chili pepper allergen concentrations. Results Mean dust particulate mass (geometric...
Plus de Messages Page suivante »

Abonnement courriel

Messages récents

Catégories

Mots-Clés (Tags)

Blogoliste

Archives