Parcourir par tags

Tous les tags » Hydrocarbures / solvants » Agents chimiques (RSS)
Occupational exposure to benzene, toluene, xylene and styrene and risk of prostate cancer in a population-based study
Objectives: While several monocyclic aromatic hydrocarbons are classified as definite or possible carcinogens to humans, little data exist on their role in prostate cancer (PCa). We examined occupational exposure to benzene, toluene, xylene (BTX) and styrene and PCa risk in a population-based case–control study in Montreal, Canada. Methods: Cases aged ≤75 years diagnosed with PCa in 2005–2009 (n=1920) and population controls frequency-matched on age (n=1989) provided detailed work histories. Experts evaluated the certainty, frequency and concentration of exposure to monocyclic aromatic...
Case-control investigation of occupational exposure to chlorinated solvents and non-Hodgkin’s lymphoma
Objectives: Although many studies have investigated the association between trichloroethylene (TCE) exposure and non-Hodgkin's lymphoma (NHL), less is known about other chlorinated solvents. We extended our previous analysis of occupational TCE exposure in a multicentre population-based case-control study of NHL to investigate associations with five additional chlorinated solvents: 1,1,1,-trichloroethane, carbon tetrachloride, chloroform, methylene chloride and perchloroethylene. Methods: Cases (n=1189) and controls (n=982) provided detailed information on their occupational histories and workplace...
Occupational Exposures to New Drycleaning Solvents
There are about 36,000 commercial drycleaning shops in the United States. Most are owner-operated small businesses with fewer than 10 employees. In addition, some drycleaning shops may be owned and staffed by individuals with limited English language skills and/or may be marginally profitable– factors that may create additional barriers for the owner-operator to maintain a safe and healthy workplace. Environmental regulatory requirements and an increased awareness of the potential occupational hazards from using the drycleaning chemical perchloroethylene (PERC) have resulted in some drycleaners...
Kidney Cancer Risk in Oil Refining in Finland
A Nested Case-Referent Study Objective: The purpose of this study was to assess whether occupational exposure to hydrocarbons in the oil-refining activity increases the risk of kidney cancer. Methods: This case-referent study was nested within the cohort of employees in the oil refinery industry in Finland in 1967 to 1982 (n = 9454). The final data included 30 cases of kidney cancer and 81 age- and sex-matched referents. Results: There was a threefold increase in the kidney cancer risk for exposure to hydrocarbons in crude oil (odds ratio, 3.1; confidence interval, 1.1 to 8.9; 11 exposed cases...
Mise en oeuvre manuelle des polyesters stratifiés
Cette brochure est conçue comme un guide et un document de référence pour la conception, la réception, la conduite et le contrôle des installations de ventilation dans un atelier de polyesters stratifiés. Dans ce guide pratique de ventilation, sont abordés les points suivants : - Généralités sur les matières premières, le niveau de risque, le polluant principal (styrène), le moulage au contact. - Méthodologie d'étude du système de ventilation. - Conception du système de ventilation...
Exposure to chlorinated solvents and lung cancer
Results of the ICARE study Objective: To investigate the role of occupational exposure to chlorinated solvents in lung cancer aetiology. Methods: ICARE (Investigation of occupational and environmental CAuses of REspiratory cancers) is a French, multicentre, population-based, case–control study. Information on the lifelong work history of 2926 cases and 3555 controls was collected using standardised questionnaires. Occupational exposures were assessed using job-exposure matrices for five chlorinated solvents. Solvents were studied separately and in combinations. ORs were computed using unconditional...
Maternal occupational exposure to polycyclic aromatic hydrocarbons and small for gestational age offspring
Objectives: While some of the highest maternal exposures to polycyclic aromatic hydrocarbons (PAHs) occur in the workplace, there is only one previous study of occupational PAH exposure and adverse pregnancy outcomes. We sought to extend this literature using interview data combined with detailed exposure assessment. Methods: Data for 1997–2002 were analysed from mothers of infants without major birth defects in the National Birth Defects Prevention Study, a large population-based case-control study in the USA. Maternal telephone interviews yielded information on jobs held in the month before...
L'Anses publie ses recommandations en vue de réduire l'exposition à cinq substances reprotoxiques et/ou perturbatrices endocriniennes
L'Anses a été saisie en 2009 par le ministère chargé de la santé afin d'identifier et de caractériser des situations d'exposition potentiellement à risque pour la santé liées à l'utilisation de produits de consommation courante et/ou d'articles contenant certaines substances chimiques classées reprotoxiques de catégorie 2 (selon le règlement européen dit CLP) ou considérées comme perturbatrices endocriniennes. L'Anses publie aujourd'hui plusieurs rapports d'expertise...
Occupational exposure to solvents and acute myeloid leukemia
A population-based, case–control study in four Nordic countries Objective: The aim of the current study was to assess the relation between occupational exposure to solvents and the risk of acute myeloid leukemia (AML). Methods: Altogether, this study comprises 15 332 incident cases of AML diagnosed in Finland, Norway, Sweden and Iceland from 1961–2005 and 76 660 controls matched by year of birth, sex, and country. Occupational records were linked with Nordic Occupational Cancer Study job exposure matrix (JEM) to estimate quantitative values for 26 occupational exposure factors. Hazard...
Urinary S-phenylmercapturic Acid as a Key Biomarker for Measuring Occupational Exposure to Low Concentrations of Benzene in Chinese Workers
A Pilot Study Objective: This study analyzed the level of urinary S-phenylmercapturic acid (U-SPMA) for low benzene exposure in a group of Chinese shoe-making workers. Methods: Urinary samples from 55 workers exposed to benzene at levels lower than 10 parts per million (ppm) were collected at postshift. U-SPMA level was determined using high-performance liquid chromatography/mass spectrography (HPLC/MS) method. Results: Good linearity of U-SPMA was observed within the range from 10 to 320 μg/L (r = 0.9994). Concentration of airborne benzene ranged from 0.71 to 32.17 mg/m3, and three segments...
Scientific evaluation of Polychlorinated biphenyls (PCBs)
The Nordic Expert Group for Criteria Documentation of Health Risks from Chemicals (NEG) has recently published an evaluation on Polychlorinated biphenyls (PCBs). Polychlorinated biphenyls (PCBs) are a class of 209 synthetic compounds (con¬geners) of which 12 are dioxin-like. For environmental reasons, PCB production and use is banned or restricted worldwide, but occupational exposure to PCBs may still occur e.g. during renovation work and handling of waste and also in PCB-contaminated buildings. Source : http://osha.europa.eu/en/news/se-scientific-evaluation-of-polychlorinated-biphenyls-pcbs...
La substitution des solvants par les esters méthyliques d’acides gras d’huiles végétales
Les esters méthyliques d'acides gras (EMAG) faisant l'objet de ce rapport sont le soyate de méthyle, le canolate de méthyle et le cocoate de méthyle, dérivés chimiquement des huiles de soja, de canola et de coco. Ces trois EMAG sont en fait des mélanges de divers EMAG spécifiques en proportions variables, dont les plus abondants sont l'oléate de méthyle, le linoléate de méthyle et le laurate de méthyle. Les EMAG sont des liquides très peu volatils, insolubles dans l'eau, de viscosité...
Effets des pics de concentration sur la neurotoxicité du styrène dans l’industrie de plastique renforcé de fibre de verre
Le projet de recherche avait deux objectifs principaux. D'une part, nous voulions faire des mesures en continu dans les milieux de travail pour bien connaître les profils d'exposition des travailleurs de l'industrie du plastique renforcé de fibre de verre (IPRFV). D'autre part, nous voulions savoir s'il est possible que de « fortes » expositions pendant de courtes périodes de temps, les « pics », puissent avoir un effet sur le système nerveux des travailleurs. Source : http://www.irsst.qc.ca/files/documents/PubIRSST/R-640.pdf

Abonnement courriel

Messages récents

Catégories

Mots-Clés (Tags)

Blogoliste

Archives