Research Topics
| David L JohnsonSummaryAffiliation: University of Oklahoma Health Sciences Center Country: USA Publications
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Detail Information
Publications
Professional judgment and the interpretation of viable mold air sampling dataDavid Johnson
Occupational and Environmental Health, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73190, USA
J Occup Environ Hyg 5:656-63. 2008....- Lifting the lid on toilet plume aerosol: a literature review with suggestions for future researchDavid L Johnson
Department of Occupational and Environmental Health, University of Oklahoma College of Public Health, Oklahoma City, OK 73126 0901, USA
Am J Infect Control 41:254-8. 2013..The potential risks associated with "toilet plume" aerosols produced by flush toilets is a subject of continuing study. This review examines the evidence regarding toilet plume bioaerosol generation and infectious disease transmission... - Containment effectiveness of expedient patient isolation unitsDavid L Johnson
Department of Occupational and Environmental Health, College of Public Health, University of Oklahoma, Oklahoma City, OK, USA
Am J Infect Control 37:94-100. 2009..The purpose of this work was to estimate containment efficiency of expedient airborne infectious isolation units with and without anterooms in the absence and presence of care provider traffic... - An efficient analytical method for particle counting in evaluating airborne infectious isolation containment using fluorescent microspheresDavid L Johnson
Department of Occupational and Environmental Health, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73126 0901, USA
J Occup Environ Hyg 5:271-7. 2008..This technique can be employed using generally available equipment and inexpensive supplies and also can minimize the number of particle counts that must be performed. The method is shown to be specific, sensitive, and accurate... 
Method-induced misclassification for a respirable dust sampled using ISO/ACGIH/CEN criteriaD L Johnson
Aerosols Research Laboratory, University of Oklahoma Health Sciences Centre, PO Box 26901, Oklahoma City, OK 73190, USA
Ann Occup Hyg 48:13-20. 2004..Misclassification rates for oral and nasal breathing at 750 and 1500 ml tidal volume and 15 breaths/min were similar for each aerosol examined...- A field comparison of the IOM inhalable aerosol sampler and a modified 37-mm cassetteR E Clinkenbeard
Department of Occupational and Environmental Health, University of Oklahoma Health Sciences Center, Oklahoma City, USA
Appl Occup Environ Hyg 17:622-7. 2002.... - Are public health workers aware of what they don't know?Dave S Kerby
Southwest Center for Public Health Preparedness, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104, USA
Biosecur Bioterror 3:31-8. 2005..Self-assessment is often used to measure how well workers are trained and whether they are ready to respond to an emergency event. The current study assessed how well self-assessment predicts actual knowledge... 
Self-assessment in the measurement of public health workforce preparedness for bioterrorism or other public health disastersDave S Kerby
Department of Health Promotion Sciences, College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73190, USA
Public Health Rep 120:186-91. 2005..The purpose of this study was to examine effective ways to evaluate public health workers' competence for preparedness...- Potentiation of noise-induced hearing loss by low concentrations of hydrogen cyanide in ratsLaurence D Fechter
Oklahoma Center for Toxicology, College of Pharmacy, The University of Oklahoma Health Sciences Center, 1110 North Stonewall Street, Room 329, Oklahoma City, Oklahoma 73117, USA
Toxicol Sci 66:131-8. 2002..However, if these levels are adjusted for an 8 h time-weighted average (TWA), the resulting levels are below the permissible exposure level (PEL) for HCN... - The relationship of particle size to olfactory nerve uptake of a non-soluble form of manganese into brainLaurence D Fechter
Department of Occupational and Environmental Health and Pharmaceutical Sciences, College of Pharmacy, Oklahoma Center for Toxicology, University of Oklahoma Health Sciences Center, Oklahoma City 73190, USA
Neurotoxicology 23:177-83. 2002..By contrast, there was no evidence of olfactory nerve MnO2 uptake in rats receiving the large-particle exposure... - What is "powder free"? Characterisation of powder aerosol produced during simulated use of powdered and powder free latex glovesM L Phillips
Department of Occupational and Environmental Health, University of Oklahoma, Health Sciences Center, PO Box 26901, Oklahoma City, Oklahoma 73190, USA
Occup Environ Med 58:479-81. 2001..To characterise the distribution of particle size and mass of glove powder aerosol released from powdered and powder free non-sterile latex gloves under controlled conditions... - Use of global positioning system technology to track subject's location during environmental exposure samplingM L Phillips
Department of Occupational and Environmental Health, University of Oklahoma Health Sciences Center, 801 Northeast Thirteenth Street, Oklahoma City, OK 73104, USA
J Expo Anal Environ Epidemiol 11:207-15. 2001..Notwithstanding the limitations of present technology, GPS was found to be a promising means for tracking of research subjects in community-based exposure assessment studies... - The variability of delivered dose of aerosols with the same respirable concentration but different size distributionsN A Esmen
Aerosols Research Laboratory, University of Oklahoma Health Sciences Centre, PO Box 26901, Oklahoma City 73190, USA
Ann Occup Hyg 46:401-7. 2002..We believe that if it is not currently required, the development of a deposition-based aerosol sampling methodology will soon be required for the determination and quantification of inhaled aerosol-induced adverse health effects... - UV disinfection of soluble oil metalworking fluidsDavid L Johnson
Department of Occupational and Environmental Health, University of Oklahoma Health Sciences Center, Oklahoma City 73190, USA
AIHA J (Fairfax, Va) 63:178-83. 2002..The CFU concentration was stable over time in unirradiated controls. These results demonstrate that UV disinfection is feasible in MWF opaque to both visible and UV wavelengths of light... - The effect of pressure differential and care provider movement on airborne infectious isolation room containment effectivenessNoah J Adams
Department of Occupational and Environmental Health, University of Oklahoma College of Public Health, Oklahoma City, OK 73126, USA
Am J Infect Control 39:91-7. 2011..5 to 20 Pa under conditions of no provider traffic and simulated high provider traffic... - Replication of human tracheobronchial hollow airway models using a selective laser sintering rapid prototyping techniqueRodney E Clinkenbeard
Department of Occupational and Environmental Health, University of Oklahoma Health Sciences Center, Oklahoma City 73190, USA
AIHA J (Fairfax, Va) 63:141-50. 2002..Adaptations of the models to represent various disease states may be readily achieved, thereby promoting exploration of pharmaceutical research on targeted drug delivery via inhaled aerosols... - The effectiveness of handheld ventilated sanders in reducing inhalable dust concentrationsGary N Carlton
72nd Medical Group, Tinker Air Force Base, Oklahoma, USA
Appl Occup Environ Hyg 18:51-6. 2003..Varying abrasive grit size did not significantly affect dust generation, although the differences between the grit sizes used (180 and 240 grit) were not great and may have influenced the results... - Mass transfer of soil indoors by track-in on footwearAndrew Hunt
Upstate New York Specialist Environmental Consulting, UNYSPEC, P O Box 91, Baldwinsville, NY 13027, USA
Sci Total Environ 370:360-71. 2006..The level of floor surface soiling that resulted from the track-in tests, and the incomplete clean-up strongly suggest that under unrestricted transfer conditions rapid accumulation and dispersal of soil on indoor flooring is likely... - Role of sooty mold fungi in accumulation of fine-particle-associated PAHs and metals on deciduous leavesVenera A Jouraeva
Department of Physical Sciences, Kutztown University, 316 Boehm Science Center, Kutztown, PA 19530, USA
Environ Res 102:272-82. 2006..The results show that the presence of sooty mold fungi on deciduous leaves alters either the accumulation modes and/or degradation pathways of PAHs on deciduous leaves... - Suitability of caspofungin for aerosol delivery: physicochemical profiling and nebulizer choiceAnnie Wong-Beringer
School of Pharmacy, University of Southern California, Los Angeles, 90089, USA
Chest 128:3711-6. 2005..Caspofungin, a new antifungal agent with proven efficacy against invasive aspergillosis, has ideal potential for aerosolization... - Partnering for preparedness: the project public health ready experienceLibrada C Estrada
Project Public Health Ready, National Association of County and City Health Officials, Washington, DC 20036, USA
Public Health Rep 120:69-75. 2005.... - Seasonality and children's blood lead levels: developing a predictive model using climatic variables and blood lead data from Indianapolis, Indiana, Syracuse, New York, and New Orleans, Louisiana (USA)Mark A S Laidlaw
School of Population Health, University of Western Australia, Crawley, Western Australia
Environ Health Perspect 113:793-800. 2005..Thus, seasonal variation of children's Pb exposure is probably caused by inhalation and ingestion of Pb brought about by the effect of weather on soils and the resulting fluctuation in Pb loading... - An evaluation of portable high-efficiency particulate air filtration for expedient patient isolation in epidemic and emergency responseKenneth Mead
Division of Applied Research and Technology, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Cincinnati, OH 45226, USA
Ann Emerg Med 44:635-45. 2004.... - Differences in accumulation of PAHs and metals on the leaves of Tiliaxeuchlora and Pyrus calleryanaVenera A Jouraeva
Department of Chemistry, SUNY College of Environmental Science and Forestry, Syracuse, NY 13210, USA
Environ Pollut 120:331-8. 2002..These species have similar leaf morphology and were exposed to the identical environmental conditions. The accumulation of both PAHs and metals per leaf area was significantly higher on linden leaves than on pear leaves...