journal
MENU ▼
Read by QxMD icon Read
search

Journal of Occupational and Environmental Hygiene

journal
https://www.readbyqxmd.com/read/28440728/characterization-of-chemical-contaminants-generated-by-a-desktop-fused-deposition-modeling-3-dimensional-printer
#1
Aleksandr B Stefaniak, Ryan F LeBouf, Jinghai Yi, Jason Ham, Timothy Nurkewicz, Diane E Schwegler-Berry, Bean T Chen, J Raymond Wells, Matthew G Duling, Robert B Lawrence, Stephen B Martin, Alyson R Johnson, M Abbas Virji
Printing devices are known to emit chemicals into the indoor atmosphere. Understanding factors that influence release of chemical contaminants from printers is necessary to develop effective exposure assessment and control strategies. In this study, a desktop fused deposition modeling (FDM) 3-D printer using acrylonitrile butadiene styrene (ABS) or polylactic acid (PLA) filaments and two monochrome laser printers were evaluated in a 0.5 m(3) chamber. During printing, chamber air was monitored for vapors using a real-time photoionization detector (results expressed as isobutylene equivalents) to measure total volatile organic compound (TVOC) concentrations, evacuated canisters to identify specific VOCs by off-line gas chromatography-mass spectrometry (GC-MS) analysis, and liquid bubblers to identify carbonyl compounds by GC-MS...
April 25, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28426382/effectiveness-of-hand-washing-on-the-removal-of-iron-oxide-nanoparticles-from-human-skin-ex-vivo
#2
Nastassja A Lewinski, Aurélie Berthet, Lionel Maurizi, Antoine Eisenbeis, Nancy B Hopf
In this study, the effectiveness of washing with soap and water in removing nanoparticles from exposed skin was investigated. Dry, nanoscale hematite (α-Fe2O3) or maghemite (γ-Fe2O3) powder, with primary particle diameters between 20-30 nm, were applied to two samples each of fresh and frozen ex vivo human skin in two independent experiments. The permeation of nanoparticles through skin, and the removal of nanoparticles after washing with soap and water were investigated. Bare iron oxide nanoparticles remained primarily on the surface of the skin, without penetrating beyond the stratum corneum...
April 20, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28426321/hansae-vietnam-s-garment-factory-latest-example-of-how-corporate-social-responsibility-has-failed-to-protect-workers
#3
Garrett Brown
A Korean-operated garment factory complex in Vietnam was subject to 26 separate corporate social responsibility (CSR) audits in 2015. However, thorough inspections by two other non-governmental organizations in 2016 found numerous violations of Vietnamese occupational health and safety and labor laws as well as violations of the corporate codes of conduct of the international clothing brands which source apparel from the facility. The 2016 investigations indicate the lack of efficacy of the 2015 CSR audits and call into question whether voluntary CSR programs and audits by for-profit CSR monitoring companies can effectively protect the health, safety and legal rights of workers in global supply chains...
April 20, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28426293/identifying-thermal-breakdown-products-of-thermoplastics
#4
Marianne Guillemot, Benoît Oury, Sandrine Melin
Polymers processed to produce plastic articles are subjected to temperatures between 150°C and 450°C or more during overheated processing and breakdowns. Heat-based processing of this nature can lead to emission of volatile organic compounds (VOCs) into the thermoplastic processing shop. In this study, laboratory experiments, qualitative and quantitative emissions measurement in thermoplastic factories were carried out. The first step was to identify the compounds released depending on the thermoplastic nature, the temperature and the type of process...
April 20, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28426290/development-of-a-thoracic-personal-sampler-system-for-co-sampling-of-sulfuric-acid-mist-and-sulfur-dioxide-gas
#5
Chih-Hsiang Chien, Alexandros Theodore, Chufan Zhou, Chang-Yu Wu, Yu-Mei Hsu, Brian Birky
A novel personal sampler was designed to measure inorganic acid mists and gases for determining human exposure levels to these acids in workplaces. This sampler consists of (1) a parallel impactor for classifying aerosol by size following the ISO/CEN/ACGIH defined human thoracic fraction, (2) a cellulose filter to collect the residual acid mist but allowing penetration of sulfur dioxide gas, and (3) an accordion-shaped porous membrane denuder (aPMD) for adsorbing the penetrating sulfur dioxide gas. Acid-resistant PTFE was chosen as the housing material to minimize sampling interference...
April 20, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28426289/injuries-and-exposures-among-ocean-safety-providers-a-review-of-workplace-injuries-and-exposures-from-2007-2012
#6
Kevin M Ryan, Alan H Breaud, Laura Eliseo, Ralph Goto, Patricia Mitchell
OBJECTIVE: Research on workplace injuries and exposures in ocean safety personnel remains limited. Despite increasing beach attendance and reliance on lifeguards for protection, the most common types of injuries, equipment resulting in injuries and environmental exposures remains unknown. METHODS: This study reviewed OSHA 300 logs summarizing workers' compensation claims from 2007-2012 to identify common body parts injured, action at time of injury, equipment causing injury and environmental exposures...
April 20, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28406371/inhalation-exposure-during-spray-application-and-subsequent-sanding-of-a-wood-sealant-containing-zinc-oxide-nanoparticles
#7
Michael R Cooper, Gavin H West, Leonard G Burrelli, Daniel Dresser, Kelsey N Griffin, Alan M Segrave, Jon Perrenoud, Bruce E Lippy
Nano-enabled construction products have entered into commerce. There are concerns about the safety of manufactured nanomaterials, and exposure assessments are needed for a more complete understanding of risk. This study assessed potential inhalation exposure to ZnO nanoparticles during spray application and power sanding of a commercially available wood sealant and evaluated the effectiveness of local exhaust ventilation in reducing exposure. A tradesperson performed the spraying and sanding inside an environmentally-controlled chamber...
April 13, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28406364/fume-emissions-from-a-low-cost-3-d-printer-with-various-filaments
#8
Evan L Floyd, Jun Wang, James L Regens
3-D printing is an additive manufacturing process involving the injection of melted thermoplastic polymers, which are then laid down in layers to achieve a pre-designed shape. The heated deposition process raises concerns of potential aerosol and volatile organic compounds (VOC) emission and exposure. The decreasing cost of desktop 3-D printers has made the use of 3-D printers more acceptable in non-industrial workplaces lacking sufficient ventilation. Meanwhile, little is known about the characteristics of 3-D printing fume emission...
April 13, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28406362/evaluation-of-coverall-field-dry-aerosol-decontamination-methods-using-a-manikin
#9
J M Slagley, H Paschold, J M Engler
A full-size manikin dressed in fire-resistant coveralls coated in 120 grams of sodium bicarbonate was randomly given one of three treatments for dry aerosol decontamination. The three treatments were high-efficiency particulate air (HEPA) vacuum, a commercially-available air shower, and the no treatment control. Immediately after the treatment, the coveralls were doffed and an air sample was taken in the breathing zone of the manikin to estimate airborne total and respirable dust concentrations to an unprotected worker post decontamination...
April 13, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28327081/pilot-study-of-patron-sound-level-exposure-in-loud-restaurants-bars-and-clubs-in-new-york-city
#10
Ariel Spira-Cohen, Anna Caffarelli, Lawrence Fung
Visiting restaurants, bars, clubs and lounges is a regular part of urban cultural life for residents and tourists alike; however, anecdotal reports and diner surveys suggest that sound levels are excessive and diners dislike them. High sound levels in these venues can contribute to both patron and employee overexposure, and young people may be particularly at risk. To supplement the paucity of literature and data on noise in urban venues, patron noise exposure was measured inside a sample of loud New York City (NYC) restaurants, bars, clubs and lounges...
March 22, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28326998/effects-of-organizational-safety-practices-and-perceived-safety-climate-on-ppe-usage-engineering-controls-and-adverse-events-involving-liquid-antineoplastic-drugs-among-nurses
#11
David M DeJoy, Todd D Smith, Henok Woldu, Mari-Amanda Dyal, Andrea L Steege, James M Boiano
PURPOSE: Antineoplastic drugs pose risks to the healthcare workers who handle them. This fact notwithstanding, adherence to safe handing guidelines remains inconsistent and often poor. This study examined the effects of pertinent organizational safety practices and perceived safety climate on the use of personal protective equipment, engineering controls, and adverse events (spill/leak or skin contact) involving liquid antineoplastic drugs Method: Data for this study came from the 2011 National Institute for Occupational Safety and Health (NIOSH) Health and Safety Practices Survey of Healthcare Workers which included a sample of approximately 1,800 nurses who had administered liquid antineoplastic drugs during the past seven days...
March 22, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28278065/ultraviolet-uv-reflective-paint-with-ultraviolet-germicidal-irradiation-uvgi-improves-decontamination-of-nosocomial-bacteria-on-hospital-room-surfaces
#12
Katelyn C Jelden, Shawn G Gibbs, Philip W Smith, Angela L Hewlett, Peter C Iwen, Kendra K Schmid, John J Lowe
An ultraviolet germicidal irradiation (UVGI) generator (the TORCH™, ClorDiSys Solutions, Inc.) was used to compare the disinfection of surface coupons (plastic from a bedrail, stainless steel, and chrome-plated light switch cover) in a hospital room with walls coated with ultraviolet (UV)-reflective paint (Lumacept) or standard paint. Each surface coupon was inoculated with methicillin-resistant Staphylococcus aureus (MRSA) or vancomycin-resistant Enterococcus faecalis (VRE), placed at 6 different sites within a hospital room coated with UV-reflective paint or standard paint, and treated by 10 minute UVC exposure (UVC dose of 0-688 mJ/cm(2) between sites with standard paint and 0-553 mJ/cm(2) with UV-reflective paint) in 8 total trials...
February 28, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28278064/fluid-replacement-advice-during-work-in-fully-encapsulated-impermeable-chemical-protective-suits
#13
Candace D Rubenstein, Emiel A DenHartog, A Shawn Deaton, Niels Bogerd, Saskia DeKant
A major concern for responders to hazardous materials (HazMat) incidents is the heat strain that is caused by fully encapsulated impermeable chemical protective suits. In a research project, funded by the US Department of Defense, the thermal strain experienced when wearing these suits was studied. One particular area of interest was the fluid loss of responders during work in these suits as dehydration may be an additional health concern to the heat strain. 17 City of Raleigh firemen and 24 students were tested at two different labs...
February 28, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28278063/assessment-of-personal-airborne-exposures-and-surface-contamination-from-x-ray-vaporization-of-beryllium-targets-at-the-national-ignition-facility
#14
Samuel Y Paik, Patrick M Epperson, Kenneth M Kasper
This study presents air and surface sampling data collected over the first two years since beryllium was introduced as a target material at the National Ignition Facility. Over this time, 101 experiments with beryllium-containing targets were executed. The data provides an assessment of current conditions in the facility and a baseline for future impacts as new, reduced regulatory limits for beryllium are being proposed by both the Occupational Safety and Health Administration and Department of Energy. This study also investigates how beryllium deposits onto exposed surfaces as a result of x-ray vaporization and the effectiveness of simple decontamination measures in reducing the amount of removable beryllium from a surface...
February 28, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28278066/characterization-of-exposure-to-byproducts-from-firing-lead-free-frangible-ammunition-in-an-enclosed-ventilated-firing-range
#15
Christin M Grabinski, Mark M Methner, Jerimiah M Jackson, Alexander L Moore, Laura E Flory, Trevor Tilly, Saber M Hussain, Darrin K Ott
U.S. Air Force small arms firing ranges began using copper-based, lead-free frangible ammunition in the early 2000s due to environmental and health concerns related to the use of lead-based ammunition. Exposure assessments at these firing ranges have routinely detected chemicals and metals in amounts much lower than their mass-based occupational exposure limits, yet, instructors report work-related health concerns including respiratory distress, nausea, and headache. The objective of this study at one firing range was to characterize the aerosol emissions produced by weapons during firing events and evaluate the ventilation system's effectiveness in controlling instructor exposure to these emissions...
February 26, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28278067/recommended-test-methods-and-pass-fail-criteria-for-a-respirator-fit-capability-test-of-half-mask-air-purifying-respirators
#16
Ziqing Zhuang, Michael Bergman, Zhipeng Lei, George Niezgoda, Ronald Shaffer
This study assessed key test parameters and pass/fail criteria options for developing a respirator fit capability (RFC) test for half-mask air-purifying particulate respirators. Using a 25-subject test panel, benchmark RFC data were collected for 101 National Institute for Occupational Safety and Health-certified respirator models. These models were further grouped into 61 one-, two- or three-size families. Fit testing was done using a PortaCount® Plus with N95-Companion accessory and an Occupational Safety and Health Administration-accepted quantitative fit test protocol...
February 25, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28278068/an-improved-experimental-methodology-to-evaluate-the-effectiveness-of-protective-gloves-against-nanoparticles-in-suspension
#17
Ludwig Vinches, Mohamed Zemzem, Stéphane Hallé, Caroline Peyrot, Kevin J Wilkinson, Nathalie Tufenkji
Recent studies underline the potential health risks associated to the "nano" revolution, particularly for the workers who handle engineered nanoparticles (ENPs) that can be found in the formulation of several commercial products. Although many Health & Safety agencies recommend the use of protective gloves against chemicals, few studies have investigated the effectiveness of these gloves towards nanoparticle suspensions. Moreover, the data that are available are often contradictory. This study was designed to evaluate the effectiveness of protective gloves against nanoparticles in suspension...
February 21, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28278069/chicago-transit-authority-train-noise-exposure
#18
Linh T Phan, Rachael M Jones
To characterize noise exposure of riders on Chicago Transit Authority (CTA) trains, we measured noise levels twice on each segment of seven of the eight CTA train lines, which are named after colors, yielding 48 time-series measurements. We found the Blue Line has the highest noise levels compared to other train lines, with mean 76.9 dBA; and that the maximum noise level, 88.9 dBA occurred in the tunnel between the Chicago and Grand stations. Train segments involving travel through a tunnel had significantly higher noise levels than segments with travel on elevated and ground level tracks...
February 7, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28166462/comparison-of-personal-diesel-and-biodiesel-exhaust-exposures-in-an-underground-mine
#19
Eric A Lutz, Rustin J Reed, Vivien S T Lee, Jefferey L Burgess
OBJECTIVE: This study aimed to compare personal exposures to diesel fuel and a biodiesel blend exhaust in an underground mine. METHODS: Personal exposure monitoring was performed in a non-operational, hard rock underground mine during use of a load-haul-dump vehicle. Eight-hour time-weighted average (TWA8) exposure concentrations of ultra-low sulfur diesel and 75% biodiesel/25% diesel blend (B75) fuels were compared. RESULTS: Compared to diesel, use of B75 was associated with relative percent reductions of 22 and 28% in median respirable (r) diesel particulate matter (DPM) and nitrogen dioxide and 25 and 23% increases in median total DPM and nitric oxide TWA8 exposure concentrations, respectively...
February 6, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28165927/is-3d-printing-safe-analysis-of-the-thermal-treatment-of-thermoplastics-abs-pla-pet-and-nylon
#20
Szymon Wojtyła, Piotr Klama, Tomasz Baran
The fast development of low-cost desktop three-dimensional (3D) printers has made those devices widely accessible for goods manufacturing at home. However, is it safe? Users may belittle the effects or influences of pollutants (organic compounds and ultrafine particles) generated by the devices in question. Within the scope of this study, the authors attempt to investigate thermal decomposition of the following commonly used, commercially available thermoplastic filaments: acrylonitrile-butadiene-styrene (ABS), polylactic acid (PLA), polyethylene terephthalate (PET), and nylon...
February 6, 2017: Journal of Occupational and Environmental Hygiene
journal
journal
40530
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"