Gregory Day

Summary

Affiliation: Centers for Disease Control and Prevention
Country: USA

Publications

  1. doi Identification and measurement of diacetyl substitutes in dry bakery mix production
    Gregory 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
  2. doi Characterization of exposures among cemented tungsten carbide workers. Part II: Assessment of surface contamination and skin exposures to cobalt, chromium and nickel
    Gregory 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
  3. ncbi Exposure pathway assessment at a copper-beryllium alloy facility
    Gregory 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
  4. ncbi Characteristics of dusts encountered during the production of cemented tungsten carbides
    Aleksandr B Stefaniak
    Division of Respiratory Disease Studies, National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
    Ind Health 45:793-803. 2007
  5. ncbi Beryllium exposure: dermal and immunological considerations
    Gregory 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
  6. doi Characteristics of beryllium exposure to small particles at a beryllium production facility
    M Abbas Virji
    National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
    Ann Occup Hyg 55:70-85. 2011
  7. doi Dissolution of cemented carbide powders in artificial sweat: implications for cobalt sensitization and contact dermatitis
    Aleksandr 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
  8. doi Release of beryllium from beryllium-containing materials in artificial skin surface film liquids
    Aleksandr 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
  9. doi Influence of artificial gastric juice composition on bioaccessibility of cobalt- and tungsten-containing powders
    Aleksandr 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
  10. doi Physicochemical characteristics of aerosol particles generated during the milling of beryllium silicate ores: implications for risk assessment
    Aleksandr 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

Detail Information

Publications18

  1. doi Identification and measurement of diacetyl substitutes in dry bakery mix production
    Gregory 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
    ....
  2. doi Characterization of exposures among cemented tungsten carbide workers. Part II: Assessment of surface contamination and skin exposures to cobalt, chromium and nickel
    Gregory 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...
  3. ncbi Exposure pathway assessment at a copper-beryllium alloy facility
    Gregory 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...
  4. ncbi Characteristics of dusts encountered during the production of cemented tungsten carbides
    Aleksandr 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...
  5. ncbi Beryllium exposure: dermal and immunological considerations
    Gregory 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
    ....
  6. doi Characteristics of beryllium exposure to small particles at a beryllium production facility
    M 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...
  7. doi Dissolution of cemented carbide powders in artificial sweat: implications for cobalt sensitization and contact dermatitis
    Aleksandr 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...
  8. doi Release of beryllium from beryllium-containing materials in artificial skin surface film liquids
    Aleksandr 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...
  9. doi Influence of artificial gastric juice composition on bioaccessibility of cobalt- and tungsten-containing powders
    Aleksandr 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)...
  10. doi Physicochemical characteristics of aerosol particles generated during the milling of beryllium silicate ores: implications for risk assessment
    Aleksandr 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...
  11. doi Characterization of exposures among cemented tungsten carbide workers. Part I: Size-fractionated exposures to airborne cobalt and tungsten particles
    Aleksandr 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...
  12. ncbi Bioavailability of beryllium oxide particles: an in vitro study in the murine J774A.1 macrophage cell line model
    Gregory 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
    ....
  13. ncbi A theoretical framework for evaluating analytical digestion methods for poorly soluble particulate beryllium
    Aleksandr 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...
  14. ncbi Beryllium: a modern industrial hazard
    Kathleen 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...
  15. pmc Enhanced preventive programme at a beryllium oxide ceramics facility reduces beryllium sensitisation among new workers
    Kristin 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...
  16. ncbi Differences in dissolution behavior in a phagolysosomal simulant fluid for single-constituent and multi-constituent materials associated with beryllium sensitization and chronic beryllium disease
    Aleksandr 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...
  17. ncbi Characterization of physicochemical properties of beryllium aerosols associated with prevalence of chronic beryllium disease
    Aleksandr 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...
  18. ncbi Surface area of respirable beryllium metal, oxide, and copper alloy aerosols and implications for assessment of exposure risk of chronic beryllium disease
    Aleksandr 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...