Research Topics
| Gregory DaySummaryAffiliation: Centers for Disease Control and Prevention Country: USA Publications
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Detail Information
Publications
Identification and measurement of diacetyl substitutes in dry bakery mix productionGregory Day
Division of Respiratory Disease Studies, National Institute for Occupational Safety and Health, Morgantown, West Virginia 26505 2888, USA
J Occup Environ Hyg 8:93-103. 2011....- Characterization of exposures among cemented tungsten carbide workers. Part II: Assessment of surface contamination and skin exposures to cobalt, chromium and nickelGregory A Day
Division of Respiratory Disease Studies, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Morgantown, West Virginia 26505 2888, USA
J Expo Sci Environ Epidemiol 19:423-34. 2009..Epidemiologic studies of associated adverse health effects will likely require more biologically relevant exposure metrics to improve the ability to detect exposure-response relationships... 
Exposure pathway assessment at a copper-beryllium alloy facilityGregory A Day
Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Division of Respiratory Disease Studies, Morgantown, WV 26505, USA
Ann Occup Hyg 51:67-80. 2007..Based on our current understanding of the multiple exposure pathways that may lead to sensitization, we support prudent control practices such as use of protective gloves to minimize skin exposure to beryllium salts and fine particles...- Characteristics of dusts encountered during the production of cemented tungsten carbidesAleksandr B Stefaniak
Division of Respiratory Disease Studies, National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
Ind Health 45:793-803. 2007..Variability in aerosol respirability and chemical heterogeneity could translate into differences in toxicity and support detailed characterization of physicochemical properties during exposure assessments... - Beryllium exposure: dermal and immunological considerationsGregory A Day
Division of Respiratory Disease Studies, National Institute for Occupational Safety and Health, 1095 Willowdale Road, MS 2703, Morgantown, WV 26505 2888, USA
Int Arch Occup Environ Health 79:161-4. 2006.... - Characteristics of beryllium exposure to small particles at a beryllium production facilityM Abbas Virji
National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
Ann Occup Hyg 55:70-85. 2011..Consideration of biologically relevant aspects of exposure such as beryllium particle size distribution, chemical form, and solubility will likely improve exposure assessment... - Dissolution of cemented carbide powders in artificial sweat: implications for cobalt sensitization and contact dermatitisAleksandr B Stefaniak
National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Mailstop H 2800, Morgantown, WV 26505, USA
J Environ Monit 12:1815-22. 2010..Observed dissolution rates for cobalt in artificial sweat indicate that dermal uptake may be sufficient to induce cobalt sensitization and allergic dermatitis... - Release of beryllium from beryllium-containing materials in artificial skin surface film liquidsAleksandr B Stefaniak
National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV 26505, USA
Ann Occup Hyg 55:57-69. 2011..The purpose of this study was to investigate the hypothesis that particulate beryllium compounds in contact with skin surface release ions via dissolution in sweat... - Influence of artificial gastric juice composition on bioaccessibility of cobalt- and tungsten-containing powdersAleksandr B Stefaniak
National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV 26505, USA
Int J Hyg Environ Health 213:107-15. 2010..Nonetheless, ingestion exposure may not contribute appreciably to total body burden given the short residence time of material in the stomach and relatively long dissolution half-times of these materials (t(1/2) = 60 to 380 days)... - Physicochemical characteristics of aerosol particles generated during the milling of beryllium silicate ores: implications for risk assessmentAleksandr B Stefaniak
Division of Respiratory Disease Studies, National Institute for Occupational Safety and Health, Morgantown, West Virginia 26505, USA
J Toxicol Environ Health A 71:1468-81. 2008..While finished product beryllium hydroxide particles may confer bioavailability similar to that of high-CBD risk aerosols, physical exposure factors (i.e., large particle sizes) may limit development of alveolar lung burdens... - Characterization of exposures among cemented tungsten carbide workers. Part I: Size-fractionated exposures to airborne cobalt and tungsten particlesAleksandr B Stefaniak
Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Morgantown, West Virginia 26505, USA
J Expo Sci Environ Epidemiol 19:475-91. 2009..By characterizing size-selective and co-exposures as well as multiple exposure pathways, this series of papers offer an approach for developing biologically meaningful exposure metrics for use in epidemiology... - Bioavailability of beryllium oxide particles: an in vitro study in the murine J774A.1 macrophage cell line modelGregory A Day
Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Division of Respiratory Disease Studies, Morgantown, West Virginia, USA
Exp Lung Res 31:341-60. 2005.... - A theoretical framework for evaluating analytical digestion methods for poorly soluble particulate berylliumAleksandr B Stefaniak
National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV 26505, USA
Anal Bioanal Chem 387:2411-7. 2007..Figure Generation of aerosol particles during machining of beryllium oxide... - Beryllium: a modern industrial hazardKathleen Kreiss
Division of Respiratory Disease Studies, National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
Annu Rev Public Health 28:259-77. 2007..Beryllium sensitization and disease prevention are paradigms for much broader public health action in both occupational and general population settings... 
Enhanced preventive programme at a beryllium oxide ceramics facility reduces beryllium sensitisation among new workersKristin J Cummings
NIOSH, Morgantown, West Virginia 26505, USA
Occup Environ Med 64:134-40. 2007..In response, the facility implemented an enhanced preventive programme to reduce sensitisation, including increased respiratory and dermal protection and particle migration control...- Differences in dissolution behavior in a phagolysosomal simulant fluid for single-constituent and multi-constituent materials associated with beryllium sensitization and chronic beryllium diseaseAleksandr B Stefaniak
Industrial Hygiene and Safety Group, MS K553, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
Toxicol In Vitro 20:82-95. 2006..Additional studies of the dissolution behavior of beryllium materials in a variety of mixture configurations will aid in developing exposure-response models to improve understanding of the risk of beryllium sensitization and CBD... - Characterization of physicochemical properties of beryllium aerosols associated with prevalence of chronic beryllium diseaseAleksandr B Stefaniak
Industrial Hygiene and Safety Group HSR 5, MS K553, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
J Environ Monit 6:523-32. 2004..However, a scientific basis does not yet exist to replace mass as the current metric of exposure... - Surface area of respirable beryllium metal, oxide, and copper alloy aerosols and implications for assessment of exposure risk of chronic beryllium diseaseAleksandr B Stefaniak
Industrial Hygiene and Safety Group (HSR-5, MS K553, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
AIHA J (Fairfax, Va) 64:297-305. 2003..To avoid errors in predicting bioavailability of beryllium and the associated risks for CBD, the mechanisms of particle formation should be understood and the SSA of beryllium particles should be measured directly...