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Annals of Work Exposures and Health

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https://www.readbyqxmd.com/read/30407491/potential-hazards-not-communicated-in-safety-data-sheets-of-flavoring-formulations-including-diacetyl-and-2-3-pentanedione
#1
Ryan F LeBouf, Brie Hawley, Kristin J Cummings
Objectives: Workers using flavoring formulations containing diacetyl and 2,3-pentanedione may be at risk of inhalational exposure, as these volatile hazardous chemicals are emitted from the bulk material, especially at elevated temperatures. However, flavoring formulations that contain diacetyl and 2,3-pentanedione might not list these ingredients because they are generally recognized as safe to ingest, may be part of a proprietary mixture deemed a trade secret, or may not be required to be listed if they are present at <1% composition...
November 8, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30380000/reach-worker-exposure-model-for-co-formulants-used-in-plant-protection-products
#2
Volker Mostert, Sebastien Bonifay, Christopher Dobe, Ralph Fliege, Joachim Krass, Renate Vosswinkel, Matthias Wormuth
Background: Substances used as co-formulants in plant protection products (PPP) may require registration under Regulation (EC) No. 1907/2006 (REACH), and additionally where an exposure assessment is required, this must take into consideration the specifics of the PPP use. Objectives: This work reports a customized screening level model developed to support human health risk assessment of operators, workers, and bystanders (OWB) for co-formulants used in PPP. The OWB model was designed to closely integrate with REACH generic exposure scenarios (GES) for PPP developed by the European Crop Protection Association (ECPA)...
October 31, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30379992/characterization-of-occupational-exposures-to-respirable-silica-and-dust-in-demolition-crushing-and-chipping-activities
#3
Anila Bello, Christopher Mugford, Amanda Murray, Susan Shepherd, Susan R Woskie
Objectives: Exposures to respirable crystalline silica (RCS) and respirable dust (RD) were investigated during demolition, crushing, and chipping at several Massachusetts construction sites. Methods: Personal breathing zone samples (n = 51) were collected on operating engineers working at demolition and crushing sites, laborers performing miscellaneous tasks at demolition sites, crushing machine tenders at crushing sites, and chipping workers at substructure bridge repair sites...
October 31, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30371750/evaluating-the-risk-assessment-approach-of-the-reach-legislation-a-case-study
#4
Hanna E Landberg, Maria Hedmer, Håkan Westberg, Håkan Tinnerberg
Risk assessments based on occupational exposure to chemicals have increased since REACH (European regulation on Registration, Evaluation, Authorization, and restriction of Chemicals) came into force. The European Chemicals Agency (ECHA) recommends that chemical exposure could be calculated using exposure models and that parameters used to calculate the exposure scenario (ES) should be communicated in extended safety data sheets (e-SDS) as workplace instructions which downstream users are obligated to follow...
October 29, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30351393/ambient-fine-aerosol-concentrations-in-multiple-metrics-in-taconite-mining-operations
#5
Tran Huynh, Gurumurthy Ramachandran, Harrison Quick, Jooyeon Hwang, Peter C Raynor, Bruce H Alexander, Jeffrey H Mandel
Studies in environmental epidemiology and of occupational cohorts have implicated the effects of fine particulates with increased risk of cardiovascular diseases. Motivated by this evidence, we conducted an ambient air monitoring campaign to characterize fine aerosol concentrations around various taconite ore processes in six taconite mines in northeastern Minnesota. The ore processes were first categorized into 16 broad work areas/buildings. We then took air samples at 91 fixed locations using an array of direct-reading instruments to obtain measurements of mass (PM2...
October 23, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30346476/response-to-dobie-et-al-letter-exchange-rate-and-risk-of-noise-induced-hearing-loss-in-construction-workers
#6
Benjamin James Roberts, Noah Seixas, Bhramar Mukherjee, Richard Neitzel
No abstract text is available yet for this article.
October 19, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30346469/spray-drift-from-a-conventional-axial-fan-airblast-sprayer-in-a-modern-orchard-work-environment
#7
Edward J Kasner, Richard A Fenske, Gwen A Hoheisel, Kit Galvin, Magali N Blanco, Edmund Y W Seto, Michael G Yost
Pesticide spray drift represents an important cause of crop damage and farmworker illness, especially among orchard workers. We drew upon exposure characteristics from known human illness cases to design a series of six spray trials that measured drift from a conventional axial fan airblast sprayer operating in a modern orchard work environment. Polyester line drift samples (n = 270; 45 per trial) were suspended on 15 vertical masts downwind of foliar applications of zinc, molybdenum, and copper micronutrient tracers...
October 19, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30312388/development-of-quantitative-estimates-of-wood-dust-exposure-in-a-canadian-general-population-job-exposure-matrix-based-on-past-expert-assessments
#8
Jean-François Sauvé, Hugh W Davies, Marie-Élise Parent, Cheryl E Peters, Marie-Pierre Sylvestre, Jérôme Lavoué
Objectives: The CANJEM general population job-exposure matrix summarizes expert evaluations of 31 673 jobs from four population-based case-control studies of cancer conducted in Montreal, Canada. Intensity in each CANJEM cell is represented as relative distributions of the ordinal (low, medium, high) ratings of jobs assigned by the experts. We aimed to apply quantitative concentrations to CANJEM cells using Canadian historical measurements from the Canadian Workplace Exposure Database (CWED), taking exposure to wood dust as an example...
October 12, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30304470/inter-rater-agreement-between-exposure-assessment-using-automatic-algorithms-and-using-experts
#9
Ines Florath, Deborah C Glass, Mounia Senhaji Rhazi, Marie-Elise Parent, Lin Fritschi
Objectives: To estimate the inter-rater agreement between exposure assessment to asthmagens in current jobs by algorithms based on task-based questionnaires (OccIDEAS) and by experts. Methods: Participants in a cross-sectional national survey of exposure to asthmagens (AWES-Asthma) were randomly split into two subcohorts of equal size. Subcohort 1 was used to determine the most common asthmagen groups and occupational groups. From subcohort 2, a random sample of 200 participants was drawn and current occupational exposure (yes/no) was assessed in these by OccIDEAS and by two experts independently and then as a consensus...
October 9, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30239568/whole-body-vibration-and-trunk-posture-during-operation-of-agricultural-machinery
#10
Nathan B Fethke, Mark C Schall, Linda A Merlino, Howard Chen, Cassidy A Branch, Maya Ramaswamy
Exposure to whole-body vibration (WBV) is common among agricultural workers and is associated with musculoskeletal health outcomes such as low back pain. Little is known, however, about the characteristics of exposure experienced during actual production practices. We measured WBV levels during agricultural machinery use among a sample of farmers (n = 55) performing routine agricultural activities and explored machinery attributes that may explain WBV summary measures. We also measured trunk posture to provide additional information about physical exposures during machinery operation...
September 20, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30239593/evaluation-of-dermal-exposure-to-the-herbicide-alachlor-among-vegetable-farmers-in-thailand
#11
Redeerat Mahaboonpeeti, Pornpimol Kongtip, Noppanun Nankongnab, Mathuros Tipayamongkholgul, Ariya Bunngamchairat, Witaya Yoosook, Susan Woskie
Vegetable farmers applying the herbicide alachlor may be highly exposed through dermal contact when spraying. Dermal patches were attached to 10 locations on the farmers' skin when they mixed and applied alachlor in vegetable farming areas in Thailand. Measurements were made on farmers using either a backpack sprayer with a 2 stroke gasoline motor and fan or a battery operated pump. Forty-seven vegetable farmers in Bungphra subdistrict of Thailand participated in this study. Both motorized and battery pump backpack sprayers wearing long-sleeve shirts had significantly lower alachlor concentrations on the dermal patches under their long-sleeve shirts compared to those who wore only short-sleeve shirts, regardless of the sprayer type...
September 18, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30239580/use-and-reliability-of-exposure-assessment-methods-in-occupational-case-control-studies-in-the-general-population-past-present-and-future
#12
Calvin B Ge, Melissa C Friesen, Hans Kromhout, Susan Peters, Nathaniel Rothman, Qing Lan, Roel Vermeulen
Introduction: Retrospective occupational exposure assessment has been challenging in case-control studies in the general population. We aimed to review (i) trends of different assessment methods used in the last 40 years and (ii) evidence of reliability for various assessment methods. Methods: Two separate literature reviews were conducted. We first reviewed all general population cancer case-control studies published from 1975 to 2016 to summarize the exposure assessment approach used...
September 18, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30219883/personal-dust-exposure-and-its-determinants-among-workers-in-primary-coffee-processing-in-ethiopia
#13
Samson Wakuma Abaya, Magne Bråtveit, Wakgari Deressa, Abera Kumie, Bente E Moen
Background: Coffee processing has been shown to cause high dust exposure among the workers, but there are few studies from primary processing of coffee, and none of them is from Ethiopia. The aim of this study was to assess dust exposure and its determinants among workers in primary coffee processing factories of Ethiopia. Methods: A total of 360 personal 'total' dust samples were collected from the breathing zone of workers in 12 primary coffee processing factories in Ethiopia...
September 14, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30184166/estimation-and-validation-of-flour-exposure-in-bakeries-in-alberta-canada
#14
Henry Aidoo, Jeremy Beach, Rebecca Elbourne, Jean-Michel F Galarneau, Sebastian Straube, Nicola Cherry
Objectives: In epidemiological studies of work-related ill-health only current exposures can, at best, be measured. Previous exposures may be estimated using contemporaneous hygiene records or published data. This study aimed to create a job exposure matrix for exposure in bakers for use in an ongoing cohort study. Methods: A systematic review was conducted of English language publications on exposures in bakeries. All publications that appeared to contain quantitative measures of exposure to flour dust, wheat allergen, or fungal α-amylase were read independently by two investigators and relevant data extracted...
September 3, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30165410/new-onset-copd-and-decline-in-lung-function-among-wood-dust-exposed-workers-re-analysis-of-a-6-year-follow-up-study
#15
Anneli C S Bolund, Martin R Miller, Gitte H Jacobsen, Torben Sigsgaard, Vivi Schlünssen
Objectives: There is a lack of longitudinal studies exploring the association between organic wood dust exposure and new-onset chronic obstructive pulmonary disease (COPD) and change in lung function. We have re-investigated these associations in a 6-year follow-up cohort of furniture workers exposed to wood dust using improved outcome measures and methods. Methods: A large follow-up study of 1112 woodworkers (63%) from the Danish furniture industry and 235 controls (57%) was conducted between 1998 and 2004...
August 28, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30124778/agreement-in-occupational-exposures-between-men-and-women-using-retrospective-assessments-by-expert-coders
#16
Aude Lacourt, France Labrèche, Mark S Goldberg, Jack Siemiatycki, Jérôme Lavoué
Objectives: To estimate the level of agreement and identify notable differences in occupational exposures (agents) between men and women from retrospective assessments by expert coders. Methods: Lifetime occupational histories of 1657 men and 2073 women from two case-control studies, were translated into exposure estimates to 243 agents, from data on 13882 jobs. Exposure estimates were summarized as proportions and frequency-weighted intensity of exposure for 59 occupational codes by sex...
August 16, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30247508/enzymes-in-the-seafood-industry-time-for-health-studies-with-high-quality-exposure-assessment
#17
Vivi Schlünssen
No abstract text is available yet for this article.
October 15, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30099513/occupational-exposure-to-mycotoxins-current-knowledge-and-prospects
#18
Susana Viegas, Carla Viegas, Anne Oppliger
Occupational exposure to mycotoxins is supposedly very frequent, but it is rarely reported in the scientific literature. Several recent studies described occupational exposure to the aflatoxin B1 (AFB1) mycotoxin in different occupational settings. Previously, exposure to other mycotoxins was shown in the animal husbandry and food processing sectors, confirming that occupational exposure cannot be negligible. However, no guidelines or standard methodologies are available for helping occupational hygienists to consider mycotoxin exposure in their interventions...
October 15, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30084914/a-review-of-workplace-risk-management-measures-for-nanomaterials-to-mitigate-inhalation-and-dermal-exposure
#19
Henk Goede, Yvette Christopher-de Vries, Eelco Kuijpers, Wouter Fransman
This review describes an evaluation of the effectiveness of Risk Management Measures (RMM) for nanomaterials in the workplace. Our aim was to review the effectiveness of workplace RMM for nanomaterials and to determine whether established effectiveness values of conventional chemical substances applied for modelling purposes should be adopted or revised based on available evidence. A literature review was conducted to collate nano-specific data on workplace RMM. Besides the quantitative efficacy values, the library was populated with important covariables such as the study design, measurement type, size of particles or agglomerates/aggregates, and metrics applied...
October 15, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/30060058/airborne-mrsa-and-total-staphylococcus-aureus-as-associated-with-particles-of-different-sizes-on-pig-farms
#20
Anne Mette Madsen, Iman Kurdi, Louise Feld, Kira Tendal
Airborne methicillin-resistant Staphylococcus aureus (MRSA) have previously been found on pig farms, which may lead to nasal deposition of MRSA in humans via inhalation. The anterior nares are the main niche for S. aureus, and S. aureus can cause, e.g. wound infection and pneumonia. The aim of this study was to acquire knowledge about the potential deposition of airborne MRSA, specifically, and of total S. aureus (including both methicillin-sensitive S. aureus and MRSA, in the following called S. aureus) in the different parts of the airways during occupancy on pig farms...
October 15, 2018: Annals of Work Exposures and Health
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