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Journal of Occupational and Environmental Hygiene

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https://www.readbyqxmd.com/read/27938247/estimating-diesel-fuel-exposure-for-a-plumber-repairing-an-underground-pipe
#1
Mary Finn, Mark Stenzel, Gurumurthy Ramachandran
We estimated the diesel fuel exposure of a plumber repairing an underground water line leak at a truck stop. The repair work was performed over three days during which the plumber spent most of his time in a pit filled with a mixture of water and diesel fuel. Thus, the plumber was exposed via both the inhalation and dermal routes. While previously asymptomatic, he was diagnosed with acute renal failure 35 days after working at this site. No measurements were available for estimating either inhalation or dermal exposures or the cumulative dose and, therefore, two different approaches were used that were based on simple models of the exposure scenario...
December 12, 2016: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27937086/exposure-control-practices-for-administering-nitrous-oxide-a-survey-of-dentists-dental-hygienists-and-dental-assistants
#2
James M Boiano, Andrea L Steege, Marie H Sweeney
Engineering, administrative, and work practice controls have been recommended for many years to minimize exposure to nitrous oxide during dental procedures. To better understand the extent to which these exposure controls are used, the NIOSH Health and Safety Practices Survey of Healthcare Workers was conducted among members of professional practice organizations representing dentists, dental hygienists and dental assistants. The anonymous, modular, web-based survey was completed by 284 dental professionals in private practice who administered nitrous oxide to adult and/or pediatric patients in the seven days prior to the survey...
December 12, 2016: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27936351/metal-exposures-at-three-u-s-electronic-scrap-recycling-facilities
#3
Diana Ceballos, Catherine Beaucham, Elena Page
Many metals found in electronic scrap are known to cause serious health effects, including but not limited to cancer and respiratory, neurologic, renal, and reproductive damage. The National Institute for Occupational Safety and Health/Centers for Disease Control and Prevention performed three health hazard evaluations at electronic scrap recycling facilities in the U.S. to characterize employee exposure to metals and recommend control strategies to reduce these exposures. We performed air, surface, and biological monitoring for metals...
December 9, 2016: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27875101/nonwoven-textile-for-use-in-a-nanoparticle-respiratory-deposition-sampler
#4
Donna J H Vosburgh, Jae Hong Park, Levi W D Mines, Imali A Mudunkotuwa, T Renée Anthony, Thomas M Peters
The nanoparticle respiratory deposition (NRD) sampler is a personal sampler that combines a cyclone, impactor, and a nylon mesh diffusion stage to measure a worker's exposure to nanoparticles. The concentration of titanium in the nylon mesh of the diffusion stage complicates the application of the NRD sampler for assessing exposures to titanium dioxide nanoparticles. This study evaluated commercially available nonwoven textiles for use as an alternative media in the diffusion stage of the NRD sampler. Three textiles were selected as containing little titanium from an initial screening of 11 textiles by field portable x-ray fluorescence (FPXRF)...
November 22, 2016: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27820675/hazards-after-the-storm-floodwater-drainage-pump-stations-and-exposure-to-hydrogen-sulfide
#5
Shawn Wnek, Michael Berg, Scott Skelton, Lee Lemond, Phil Goad
A hurricane can present unique hazards that exist long after the strong winds and heavy rains have subsided. These hazards may not only be physical, but chemical as well. Hydrogen sulfide (H2S) represents an important and potentially overlooked hazard that can be naturally produced in floodwaters following a hurricane. In August of 2012, in the wake of Hurricane Isaac, Plaquemines Parish, Louisiana was submerged under a blanket of floodwater. To remove floodwaters that had breached the levee system designed to keep water out, temporary drainage pump stations were installed at strategic locations throughout Plaquemines Parish...
November 7, 2016: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27808662/elemental-properties-of-coal-slag-and-measured-airborne-exposures-at-two-coal-slag-processing-facilities
#6
Christopher Mugford, Randy Boylstein, Jenna L Gibbs
In 1974, the National Institute for Occupational Safety and Health recommended a ban on the use of silica sand abrasives containing >1% silica due to the risk of silicosis. This gave rise to substitutes including coal slag. An Occupational Safety and Health Administration investigation in 2010 uncovered a case cluster of suspected pneumoconiosis in four former workers at a coal slag processing facility in Illinois, possibly attributable to occupational exposure to coal slag dust. This article presents the results from a National Institute for Occupational Safety and Health industrial hygiene survey at the same coal slag processing facility and a second facility...
November 3, 2016: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27801630/understanding-workers-exposure-systematic-review-and-data-analysis-of-emission-potential-for-noaa
#7
E Kuijpers, C Bekker, D Brouwer, M Le Feber, W Fransman
Exposure assessment for nano-objects, and their aggregates and agglomerates (NOAA) has evolved from explorative research towards more comprehensive exposure assessment, providing data to further develop currently used conservative control banding (CB) tools for risk assessment. This study aims to provide an overview of current knowledge on emission potential of NOAA across the occupational life cycle stages by a systematic review and subsequently use the results in a data analysis. Relevant parameters that influence emission were collected from peer-reviewed literature with a focus on the four source domains (SD) in the source-receptor conceptual framework for NOAA...
November 1, 2016: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27792474/comparison-of-coarse-coal-dust-sampling-techniques-in-a-laboratory-simulated-longwall-section
#8
Justin R Patts, Teresa L Barone
Airborne coal dust generated during mining can deposit and accumulate on mine surfaces, presenting a dust explosion hazard. When assessing dust hazard mitigation strategies for airborne dust reduction, sampling is done in high-velocity ventilation air, which is used to purge the mining face and gallery tunnel. In this environment, the sampler inlet velocity should be matched to the air stream velocity (isokinetic sampling) to prevent oversampling of coarse dust at low sampler-to-air velocity ratios. Low velocity ratios are often encountered when using low flow rate, personal sampling pumps approved for use in underground mines...
October 28, 2016: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27792471/respirable-size-selective-sampler-for-end-of-shift-quartz-measurement-development-and-performance
#9
Taekhee Lee, Larry Lee, Emanuele Cauda, Jon Hummer, Martin Harper
Aims of this study were to develop a respirable size-selective sampler for direct-on-filter (DoF) quartz measurement at the end-of-shift (EoS) using a portable Fourier transform infrared (FTIR) spectrometer and to determine its size-selective sampling performance. A new miniaturized sampler has been designed to have an effective particle deposition diameter close to the portable FTIR beam diameter (6-mm). The new sampler (named the EoS cyclone) was constructed using a 3 dimensional printer. The sampling efficiency of the EoS cyclone was determined using polydisperse glass sphere particles and a time-of-flight direct reading instrument...
October 28, 2016: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27792470/increased-sensitivity-of-osha-method-analysis-of-diacetyl-and-2-3-pentanedione-in-air
#10
Ryan LeBouf, Michael Simmons
Gas chromatography/mass spectrometry (GC/MS) operated in selected ion monitoring mode was used to enhance the sensitivity of OSHA Methods 1013/1016 for measuring diacetyl and 2,3-pentanedione in air samples. The original methods use flame ionization detection which cannot achieve the required sensitivity to quantify samples at or below the NIOSH recommended exposure limits (REL: 5 ppb for diacetyl and 9.3 ppb for 2,3-pentanedione) when sampling for both diacetyl and 2,3-pentanedione. OSHA Method 1012 was developed to measure diacetyl at lower levels but requires an electron capture detector, and a sample preparation time of 36 hours...
October 28, 2016: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27792469/performance-of-prototype-high-flow-inhalable-dust-sampler-in-a-livestock-production-facility
#11
T Renée Anthony, Changjie Cai, John Mehaffy, Darrah Sleeth, John Volckens
A high-flow inhalable sampler, designed for operational flow rates up to 10 L/min using computer simulations and examined in wind tunnel experiments, was evaluated in the field. This prototype sampler was deployed in collocation with an IOM (the benchmark standard sampler) in a swine farrowing building to examine the sampling performance for assessing concentrations of inhalable particulate mass and endotoxin. Paired samplers were deployed for 24-hours on 19 days over a three-month period. On each sampling day, the paired samplers were deployed at three fixed locations and data were analyzed to identify agreement and to examine systematic biases between concentrations measured by these samplers...
October 28, 2016: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27791486/perception-or-reality-can-thermal-perceptions-inform-management-of-firefighters-in-the-heat
#12
Anthony Walker, Ben Rattray, Matt Brearley
Accurately assessing the physiological status of firefighters during work in the heat is critical to ensuring their safety. Evaluating core temperatures (Tc) in the field is problematic due to cost and limitations in technology and accuracy. As such, fire services rely on individual perceptions of wellbeing. The present study aimed to establish whether perceptual responses measured using the perceptual strain index (PeSI), calculated from rate of perceived exertion (RPE) and thermal sensation (TS), could reliably predict the physiological strain (PSI) encountered by experienced firefighters working in a hot environment...
October 28, 2016: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27786737/assessment-of-fungal-diversity-in-a-water-damaged-office-building
#13
Brett J Green, Angela R Lemons, Yeonmi Park, Jean M Cox-Ganser, Ju-Hyeong Park
Recent studies have described fungal communities in indoor environments using gene sequencing-based approaches. In this study, dust-borne fungal communities were elucidated from a water-damaged office building located in the northeastern region of the United States using internal transcribed spacer (ITS) rRNA gene sequencing. Genomic DNA was extracted from 5 mg of floor dust derived from 22 samples collected from either the lower floors (n = 8) or a top floor (n = 14) of the office building. ITS gene sequencing resolved a total of 933 ITS sequences and was clustered into 216 fungal operational taxonomic units (OTUs)...
October 27, 2016: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27786602/inter-laboratory-comparison-of-three-earplug-fit-test-systems
#14
David C Byrne, William J Murphy, Edward F Krieg, Robert M Ghent, Kevin L Michael, Earl W Stefanson, William A Ahroon
The National Institute for Occupational Safety and Health (NIOSH) sponsored tests of three earplug fit-test systems (NIOSH HPD Well-Fit™, Michael & Associates FitCheck, and Honeywell Safety Products VeriPRO®). Each system was compared to laboratory-based real-ear attenuation at threshold (REAT) measurements in a sound field according to ANSI/ASA S12.6-2008 at the NIOSH, Honeywell Safety Products, and Michael & Associates testing laboratories. An identical study was conducted independently at the U.S. Army Aeromedical Research Laboratory (USAARL), which provided their data for inclusion in this report...
October 27, 2016: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27801631/assessment-of-airborne-nanoparticles-present-in-industry-of-aluminum-surface-treatments
#15
R J Santos, M T Vieira
Conventional industrial processes are emission sources of unintended nanoparticles which are potentially harmful for the environment and human health. The aim of this study is to assess airborne nanoparticle release from aluminum surface treatment processes in various workplaces. Two direct reading instruments, a scanning mobility particle sizer to measure size distribution and a nanoparticle surface area monitoring to measure the surface area of particles deposited in the human lung, were employed to perform area monitoring...
March 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27717300/comparison-of-qualitative-and-quantitative-fit-testing-results-for-three-commonly-used-respirators-in-the-healthcare-sector
#16
Chun-Yip Hon, Quinn Danyluk, Elizabeth Bryce, Bob Janssen, Mike Neudorf, Annalee Yassi, Hui Shen, George Astrakianakis
N95 filtering facepiece respirators are used by healthcare workers when there is a risk of exposure to airborne hazards during aerosol-generating procedures. Respirator fit-testing is required prior to use to ensure that the selected respirator provides an adequate face seal. Two common fit-test methods can be employed: qualitative fit-test (QLFT) or quantitative fit-test (QNFT). Respiratory protection standards deem both fit-tests to be acceptable. However, previous studies have indicated that fit-test results may differ between QLFT and QNFT and that the outcomes may also be influenced by the type of respirator model...
March 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27715653/the-effect-of-obesity-on-postural-stability-during-a-standardized-lifting-task
#17
Mojdeh Pajoutan, Xu Xu, Lora A Cavuoto
The objective of this study was to assess the effect of obesity on postural stability during a standardized lifting task. Twelve young males, six obese and six non-obese, completed three replications of repeated six lifts (at a rate of six lifts per minutes) at two levels of loads (10% and 25% of capacity) crossed with two levels of orientation (0° and 45° from sagittal plane). Postural stability measures showed that center of pressure sway path and sway area were ∼21% and ∼53% lower with obesity, respectively...
March 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27676216/a-review-of-surface-wipe-sampling-compared-to-biologic-monitoring-for-occupational-exposure-to-antineoplastic-drugs
#18
Thomas Kibby
The potential for adverse health effects from occupational exposure to antineoplastic drugs (AD) is well known. Control measures recommended by the NIOSH Alert ([3]) include medical and biologic monitoring, and environmental monitoring where available. At present no guidelines or published best practices exist to guide EHS managers on how to carry out this biologic or environmental monitoring. Studies investigating surface wipe sampling for AD have been numerous in the past decade, but very limited research exists to correlate surface contamination with actual absorption by pharmacists and nurses...
March 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28010183/-the-action-level-%C3%A2
#19
J Thomas Pierce
No abstract text is available yet for this article.
February 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27983895/statement-of-withdrawal
#20
(no author information available yet)
No abstract text is available yet for this article.
February 2017: Journal of Occupational and Environmental Hygiene
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