Parcourir par tags

Tous les tags » Métaux et composés (RSS)
Evaluation of Exposure to Metals at an Electronics Recycling Facility
The Health Hazard Evaluation Program received a request from managers at an electronics recycling company. The request concerned possible employee exposures to flame retardants and metals associated with electronics. We first visited the facility in February 2017. We held an opening meeting and toured the facility to observe operations, work practices, and working conditions. We returned in July 2017 to collect air, hand wipe, and blood samples for metals. The National Institute for Occupational Safety and Health (NIOSH) Industrywide Studies Branch evaluated employees' exposure to flame retardants...
Occupational exposures to solvents and metals are associated with fixed airflow obstruction
Our study is the first to investigate the associations between exposures to solvents and metals using lifetime work history calendars and fixed airflow obstruction (AO). We have shown that increasing cumulative exposure-unit years to chlorinated solvents is associated with fixed AO. We found that women were at increased risk of fixed AO with increasing cumulative exposed-unit-years to chlorinated solvents but not men. Source: Alif SM, Dharmage SC, Benke G, Dennekamp M, Burgess JL, Perret, Lodge CJ, Morrison S, Johns DP?, Giles GG, Gurrin LC, Thomas PS, Hopper JL, Wood-Baker R, Thompson BR, Feather...
Are the Associations of Cardiac Acceleration and Deceleration Capacities With Fine Metal Particulate in Welders Mediated by Inflammation?
Objective: The aim of this study was to investigate whether associations of acceleration capacity (AC) and deceleration capacity (DC) with metal-PM2.5 are mediated by inflammation. Methods: We obtained PM2.5, C-reactive protein, interleukin (IL)-6, 8, and 10, and electrocardiograms to compute AC and DC, from 45 male welders. Mediation analyses were performed using linear mixed models to assess associations between PM2.5 exposure, inflammatory mediator, and AC or DC, controlling for covariates. Results: The proportion of total effect of PM2.5 on AC or DC (indirect effect) mediated through IL-6 on...
Long-Term Metal PM2.5 Exposures Decrease Cardiac Acceleration and Deceleration Capacities in Welders
Objective: The aim of the study was to clarify whether long-term metal particulates affect cardiac acceleration capacity (AC), deceleration capacity (DC), or both. Methods: We calculated chronic exposure index (CEI) for PM2.5 over the work life of 50 boilermakers and obtained their resting AC and DC. Linear regression was used to assess the associations between CEI PM2.5 exposure and each of AC and DC, controlling for age, acute effects of welding exposure, and diurnal variation. Results: Mean (standard deviation) CEI for PM2.5 exposure was 1.6 (2.4)?mg/m3-work years and ranged from 0.001 to 14...
Risk of Pancreatic Cancer in Female Textile Workers in Shanghai, China, Exposed to Metals, Solvents, Chemicals, and Endotoxin
Follow-Up to a Nested Case-Cohort Study Objective: We studied associations between pancreatic cancer and occupational exposures to metals, solvents, chemicals, and endotoxin in a cohort of female textile workers in Shanghai, China. To assess the longer-term influences of these agents on pancreatic cancer we extended follow-up of this previously studied cohort. Methods: We utilized a job exposure matrix to assess occupational exposures for 481 pancreatic cancer cases and a randomly selected sub-cohort of 3191 non-cases. We calculated hazard ratios and 95% confidence intervals using Cox proportional...
Statistics Western Australia: Lead levels in blood 1994-2015
The WA Occupational Safety and Health Regulations (1996) require that health surveillance, including blood lead level tests, is provided to workers undertaking lead risk work. This report summarises these results by calendar year for the period 1 January 1994 – 15 May 2015 (date of test). Source: http://www.commerce.wa.gov.au/publications/statistics-western-australia-lead-levels-blood-1994-2015
The Relationship Between Occupational Metal Exposure and Arterial Compliance
Background: The objective of this study was to evaluate the relationship between cumulative occupational exposure to various metals and arterial compliance in welders. Methods: The observational follow-up study consisted of 25 subjects. Levels of nickel (Ni), lead, cadmium, manganese, and arsenic from toenails were assessed using mass spectrometry. Arterial compliance as reflected by augmentation index (AIx) was measured using SphygmoCor Px Pulse Wave Analysis System. Linear regression models were used to assess the associations. Results: For every 1 unit increase in log-transformed toenail Ni...
Exposure to Lead in Great Britain 2014
There was an overall reduction in the number of British workers under medical surveillance for work with lead over the past decade. Women have consistently accounted for a small proportion of the total under surveillance, and the number of young people (under 18 years) under surveillance remains low. The most recent medical surveillance data show: - The total number of workers under medical surveillance fell by 47% from 7949 in 2011/12 to 4240 in 2012/13 - The industry sector with the highest number of males under surveillance was the lead battery manufacture sector, with numbers similar to previous...
Metals in the Lungs of Ontario Hardrock Miners
The objective of this study was to determine the concentration of nickel, cadmium, and lead in the autopsied lungs of 29 hardrock miners. It involved chemical analysis of the lungs, where each lung was divided horizontally into 3 sections and analyzed by an atomic absorption spectrophotometer equipped with a graphite furnace. The grand mean levels of nickel, cadmium, and lead were found to be 1.84, 1.74, and 2.75 μg/g of dry tissue, respectively. The effect of smoking was also examined. The ratios using the mean values between smoker and nonsmoker for nickel, cadmium, and lead were found to...
Cancer and Lung Disease in Relation to Sawfiling and Endotoxin Exposure among Sawmill Workers
Exposure to hard metal and endotoxin may lead to adverse health effects in sawfilers and sawmill workers. This study examined the association between occupational exposure to these substances and the risk of lung disease and cancer. Subjects from a previous cohort study of BC sawmill workers were linked to information from hospital records and cancer registries. Employment as a sawfiler was found to be associated with an increased risk of colorectal cancer. Workers exposed to endotoxin showed a decreased risk of lung cancer, a finding which replicated the results of previous research. Source :...
Exposure to lead
There was an overall reduction in the number of British workers under medical surveillance for work with lead over the past decade. Women have consistently accounted for a small proportion of the total under surveillance, and the number of young people (under 18 years) under surveillance remains low. The most recent medical surveillance data show: - The total number of workers under medical surveillance rose by 4% to 7472 in 2010/11 from 7162 in 2009/10. - The industry sector with the highest number of males under surveillance was the smelting, refining, alloying and casting sector. - In 2010/11...
Cognitive function among sons of women who worked in dentistry
Objective Exposure to elemental mercury vapor can impair neurological function as it is neurotoxic in doses higher than usually found in dentistry. Little is known about the potential effects of fetal exposure to elemental mercury among offspring of female dental workers. We investigated cognitive function among offspring of women working in dentistry at the time of their pregnancy. Methods We compared results for cognitive function examinations taken by the majority of young men in Sweden at the time of compulsory military enlistment (age 17–18 years). Sons of female dentists (N=365) and...
Parkinson’s Disease: Workplace Risk Factors
Parkinson's disease is thought to be the second most common neurological disease (after Alzheimer's), affecting an estimated 34,000 to 60,000 Canadians and 4,500 to 8,000 British Columbians. Previous studies have examined associations between Parkinson's disease and genetic factors, environmental exposures (e.g. pesticides, heavy metals, solvents), and major head trauma. In an earlier study, the research team explored the distribution of Parkinson's disease within occupational groups. That work lead to the development of ideas about potential relationships between the disease and...
Les écrans à tubes cathodiques : comment réduire le risque chimique
Les écrans à tubes cathodiques sont des déchets dangereux du fait de la présence de plomb, de poudres luminescentes, de baryum, de cadmium et de verres spécifiques. Ces équipements présentent donc un risque chimique particulier pour l'homme et l'environnement. Ce document traite uniquement du risque chimique, l'un des principaux risques dans cette filière. Il s'adresse aux entreprises concernées par les opérations de traitement des écrans à tubes cathodiques (démanteleurs d'écrans...
Toxic Metals Tied to Work in Prisons
Inmates and employees at 10 federal prisons were exposed to toxic metals and other hazardous substances while processing electronic waste for recycling, a four-year investigation by the Justice Department's inspector general found. A report issued last week by the Office of the Inspector General said unspecified amounts of that waste were shipped overseas, possibly to undeveloped countries. Reports have multiplied in recent years that electronic waste is being dumped in developing nations, where it can harm local populations by leaching into groundwater or attracting scavengers who are exposed...
Trace Metal and Pesticide Exposure in Tree Planting in British Columbia
Concerns about the health effects of occupational exposure to fertilizers have been raised by both tree planters and contractors. Fertilizers, which sometimes contain heavy metal contaminants, are often applied at the same time that tree seedlings are planted. Some seedlings are also treated with chemical insecticides and fungicides in the nurseries, and it is possible that there could be pesticide residues on the seedlings when they are being planted. The purpose of this study was to examine these potential exposures and to investigate potentially related health effects. http://www.worksafebc...
Aluminium and aluminium compounds
At the request of the Minister of Social Affairs and Employment, the Health Council of the Netherlands evaluates the effects on the reproduction of substances at the workplace. http://osha.europa.eu/en/news/NL_Aluminium_reprotoxic_potential
Le béryllium, métal discret mais dangereux
Le béryllium est un métal peu connu de ceux qui l'utilisent car il est le plus souvent « caché » dans des alliages ou des céramiques. Mais il est bien connu des spécialistes pour sa dangerosité : il est irritant, allergisant, toxique et cancérogène. On estime qu'environ 12 000 salariés en France y sont exposés. Ce chiffre pourrait aller en augmentant avec le développement du recyclage des métaux. Une démarche de prévention appropriée peut protéger les travailleurs...
Cobalt Doped Tungsten Carbide Nanoparticles and Mammalian Cells
To achieve harder metals that don't wear down quickly, manufacturers are considering the use of tungsten-carbide nanoparticles and cobalt, which is thought to increase the strength and durability of the finished product. Unfortunately, as Susanne Bastian et al's article "Toxicity of Tungsten Carbide and Cobalt-Doped Carbide Nanoparticles in Mammalian Cells in Vitro" (Supplemental Material available here), demonstrates, increased exposure to these nanoparticles will, in all likelihood, lead to increased incidences of asthma, other respritory illnesses, and lung cancer among workers...
Preventing Occupational Exposures to Lead and Noise at Indoor Firing Ranges
The National Institute for Occupational Safety and Health (NIOSH) requests help in preventing injury and illness in workers at indoor firing ranges in the United States. Workers are potentially exposed to hazardous amounts of lead and noise at these ranges. They include thousands of employees at the firing ranges as well as more than a million Federal, State, and local law officers who train regularly at these facilities. In addition to workers, 20 million active target shooters are potentially exposed to lead and noise hazards at indoor firing ranges. http://www.cdc.gov/niosh/docs/2009-136/
Adult Blood Lead Epidemiology and Surveillance
Overexposure to inorganic lead continues to be an important health problem worldwide. Furthermore, recent research has caused increased concerns about the toxicity of lead at low doses. Lead can cause acute and chronic adverse effects in multiple organ systems, ranging from subclinical changes in function to symptomatic, life-threatening intoxication. Since 1992, CDC's state-based Adult Blood Lead Epidemiology and Surveillance (ABLES) program has tracked laboratory-reported elevated blood lead levels (BLLs) in U.S. adults. The vast majority (95%) of reported elevated BLLs have been work related...
Blood lead exposure – Latest figures
This event will provide practical advice and guidance on implementing Human Factors within effective management procedures, and give you the opportunity to have open discussion with the HSE on any issues. The event will outline standards that HSE inspectors will be looking for when inspecting Human Factors topics on COMAH and other chemical sites. http://news.hse.gov.uk/2009/03/18/blood-lead-exposure-%E2%80%93-latest-figures-for-200708/
Effective control of gas shielded arc welding fume
HSE inspectors have noted that, although Local Exhaust Ventilation (LEV) was often available for controlling exposure to welding fume, it frequently remained unused, due, partly to claims by welders that the LEV was responsible for removing shielding gas and thereby compromising the quality of the weld. However, there appeared to be few data to substantiate the welders’ claims. HSE commissioned this research project to establish whether efficient welding fume capture could be achieved using LEV whilst, at the same time, maintaining weld metal integrity. http://www.hse.gov.uk/research/rrpdf...
Pollution au mercure : FNE tire le signal d’alarme
A la veille de la réunion de Nairobi (16 février) du Programme des Nations-Unies pour l’Environnement sur les dangers du mercure, France Nature Environnement publie les résultats français de la campagne internationale Zero Mercury. Cette campagne est coordonnée en Europe par le Bureau Européen de l’Environnement (BEE) et au niveau mondial par le Zero Mercury Working Group, un réseau constitué par 75 ONG à travers le monde. Interdit en France en 1998 pour les thermomètres médicaux, le mercure est toujours utilisé...
Analysis of CTI foundry dataset
The aim of this study is to provide a statistical analysis of an exposure dataset provided by Castings Technology International (CTI). The purpose of the analysis is to provide a ‘snapshot’ of current exposure levels to ferrous foundry particulate (FFP) and other chemicals across a range of casting and fabrication related jobs. http://www.hse.gov.uk/research/rrpdf/rr677.pdf
Plus de Messages Page suivante »

Abonnement courriel

Messages récents

Catégories

Mots-Clés (Tags)

Blogoliste

Archives