Martin Harper

Summary

Affiliation: Centers for Disease Control and Prevention
Country: USA

Publications

  1. ncbi request reprint Determining particle size distributions in the inhalable size range for wood dust collected by air samplers
    Martin Harper
    Department of Environmental Health Sciences, School of Public Health, University of Alabama at Birmingham, 35294 0022, USA
    J Environ Monit 4:642-7. 2002
  2. ncbi request reprint An evaluation of total and inhalable samplers for the collection of wood dust in three wood products industries
    Martin Harper
    Department of Environmental Health Sciences, School of Public Health, University of Alabama at Birmingham, 35294 0022, USA
    J Environ Monit 4:648-56. 2002
  3. doi request reprint An inter-laboratory study to determine the effectiveness of procedures for discriminating amphibole asbestos fibers from amphibole cleavage fragments in fiber counting by phase-contrast microscopy
    Martin Harper
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Road, MS 3030, Morgantown, WV 26505, USA
    Ann Occup Hyg 56:645-59. 2012
  4. ncbi request reprint Preparation and examination of proposed consensus reference standards for fiber-counting
    Martin Harper
    Department of Environmental Health Sciences, School of Public Health, University of Alabama at Birmingham, RPHB 317, 1530 3rd Ave S, Birmingham, AL 35294 0022, USA
    AIHA J (Fairfax, Va) 64:283-7. 2003
  5. ncbi request reprint Comparison of discharge silver concentrations from electrolytic plating and metallic replacement silver recovery units
    Martin Harper
    Department of Environmental Health Sciences, School of Public Health, University of Alabama, Birmingham, Alabama, USA
    J Air Waste Manag Assoc 53:434-41. 2003
  6. pmc Performance of high flow rate samplers for respirable particle collection
    Taekhee Lee
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV 26505, USA
    Ann Occup Hyg 54:697-709. 2010
  7. ncbi request reprint Portable XRF analysis of occupational air filter samples from different workplaces using different samplers: final results, summary and conclusions
    Martin Harper
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Rd, MS 3030, Morgantown, WV 26505, USA
    J Environ Monit 9:1263-70. 2007
  8. ncbi request reprint A comparison of portable XRF and ICP-OES analysis for lead on air filter samples from a lead ore concentrator mill and a lead-acid battery recycler
    Martin Harper
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Rd, MS 3030, Morgantown, WV 26505, USA
    J Environ Monit 8:384-92. 2006
  9. doi request reprint Comparison of mounting methods for the evaluation of fibers by phase contrast microscopy
    Eun Gyung Lee
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV 26505, USA
    Ann Occup Hyg 55:644-57. 2011
  10. ncbi request reprint Uncertainty determination for nondestructive chemical analytical methods using field data and application to XRF analysis for lead
    David L Bartley
    National Institute for Occupational Safety and Health, Cincinnati, OH, USA
    J Occup Environ Hyg 4:931-42. 2007

Collaborators

Detail Information

Publications44

  1. ncbi request reprint Determining particle size distributions in the inhalable size range for wood dust collected by air samplers
    Martin Harper
    Department of Environmental Health Sciences, School of Public Health, University of Alabama at Birmingham, 35294 0022, USA
    J Environ Monit 4:642-7. 2002
    ..The NIOSH Deep South Education and Research Center has a focus on research into hazards of the forestry and associated wood-products industry, and it is hoped to expand this activity in the future...
  2. ncbi request reprint An evaluation of total and inhalable samplers for the collection of wood dust in three wood products industries
    Martin Harper
    Department of Environmental Health Sciences, School of Public Health, University of Alabama at Birmingham, 35294 0022, USA
    J Environ Monit 4:648-56. 2002
    ..The IOM/Button and CFC/Button ratios were unexpectedly low, which may be due to the exclusion of very large particles, collected by the IOM and CFC samplers. Further work is required to explain these results...
  3. doi request reprint An inter-laboratory study to determine the effectiveness of procedures for discriminating amphibole asbestos fibers from amphibole cleavage fragments in fiber counting by phase-contrast microscopy
    Martin Harper
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Road, MS 3030, Morgantown, WV 26505, USA
    Ann Occup Hyg 56:645-59. 2012
    ..Recognition of asbestos features can also be retained as excessive recognition by some laboratories will lead to a conservative decision for additional investigation...
  4. ncbi request reprint Preparation and examination of proposed consensus reference standards for fiber-counting
    Martin Harper
    Department of Environmental Health Sciences, School of Public Health, University of Alabama at Birmingham, RPHB 317, 1530 3rd Ave S, Birmingham, AL 35294 0022, USA
    AIHA J (Fairfax, Va) 64:283-7. 2003
    ..Although the reasons for the outliers are complex, this procedure may have value in selecting reference laboratories in proficiency test schemes, possibly leading to more defensible "true" values and tighter limits of variation...
  5. ncbi request reprint Comparison of discharge silver concentrations from electrolytic plating and metallic replacement silver recovery units
    Martin Harper
    Department of Environmental Health Sciences, School of Public Health, University of Alabama, Birmingham, Alabama, USA
    J Air Waste Manag Assoc 53:434-41. 2003
    ..Also, the EPU combinations need to be sampled regularly to ensure that their silver concentrations are at acceptable levels...
  6. pmc Performance of high flow rate samplers for respirable particle collection
    Taekhee Lee
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV 26505, USA
    Ann Occup Hyg 54:697-709. 2010
    ..5 microm)] and could provide overestimated exposure data with the current flow rates. However, both cyclones appeared to be able to provide relatively unbiased assessments of RCS when their flow rates were adjusted...
  7. ncbi request reprint Portable XRF analysis of occupational air filter samples from different workplaces using different samplers: final results, summary and conclusions
    Martin Harper
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Rd, MS 3030, Morgantown, WV 26505, USA
    J Environ Monit 9:1263-70. 2007
    ..Provided it is only necessary to analyze the filters, most personal samplers will provide acceptable results when used with portable XRF analysis for lead around applicable limit values...
  8. ncbi request reprint A comparison of portable XRF and ICP-OES analysis for lead on air filter samples from a lead ore concentrator mill and a lead-acid battery recycler
    Martin Harper
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Rd, MS 3030, Morgantown, WV 26505, USA
    J Environ Monit 8:384-92. 2006
    ..Most samplers performed well, with >90% of XRF results within +/- 25% of the corresponding ICP results for the optimum configurations. The OSHA algorithm for the CFC worked best without including the back-up pad with the filter...
  9. doi request reprint Comparison of mounting methods for the evaluation of fibers by phase contrast microscopy
    Eun Gyung Lee
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV 26505, USA
    Ann Occup Hyg 55:644-57. 2011
    ....
  10. ncbi request reprint Uncertainty determination for nondestructive chemical analytical methods using field data and application to XRF analysis for lead
    David L Bartley
    National Institute for Occupational Safety and Health, Cincinnati, OH, USA
    J Occup Environ Hyg 4:931-42. 2007
    ..As the method is nondestructive, further analysis of air samples with analytical results near decision points is possible...
  11. pmc Wood dust sampling: field evaluation of personal samplers when large particles are present
    Taekhee Lee
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV 26505, USA
    Ann Occup Hyg 55:180-91. 2011
    ....
  12. doi request reprint Consideration of kaolinite interference correction for quartz measurements in coal mine dust
    Taekhee Lee
    Exposure Assessment Branch, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, USA
    J Occup Environ Hyg 10:425-34. 2013
    ..Most kinds of kaolinite can be used for laboratory calibration, but preferably, the size fraction should be the same as the coal dust being collected...
  13. doi request reprint Field performance of the CATHIA-T sampler and two cyclones against the standard Cowled sampler for thoracic fiber concentrations
    Eun Gyung Lee
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Road, MS 3030, Morgantown, WV 26505, USA
    Ann Occup Hyg 54:545-56. 2010
    ....
  14. ncbi request reprint A comparison of X-ray fluorescence and wet chemical analysis of air filter samples from a scrap lead smelting operation
    Martin Harper
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Rd, MS 3030, Morgantown, WV 26505, USA
    J Environ Monit 6:819-26. 2004
    ..As a result of this pilot project, all three samplers were considered suitable for inclusion in further field research studies...
  15. doi request reprint Quartz measurement in coal dust with high-flow rate samplers: laboratory study
    Taekhee Lee
    Exposure Assessment Branch, Health Effects Laboratory Division HELD, National Institute for Occupational Safety and Health NIOSH, Centers for Disease Control and Prevention CDC, Morgantown, WV 26505, USA
    Ann Occup Hyg 56:413-25. 2012
    ....
  16. doi request reprint Exposure models for the prior distribution in bayesian decision analysis for occupational hygiene decision making
    Eun Gyung Lee
    National Institute for Occupational Safety and Health, Exposure Assessment Branch, Health Effects Laboratory Division, Morgantown, West Virginia 26505, USA
    J Occup Environ Hyg 10:97-108. 2013
    ..The proposed methods provide a logical basis for the decision process by considering determinants of worker exposure...
  17. doi request reprint Quantitative mid-infrared diffuse reflection of occupational wood dust exposures
    Madalina M Chirila
    National Institute for Occupational Safety and Health, 1095 Willowdale Rd, Morgantown, West Virginia 26505, USA
    Appl Spectrosc 65:243-9. 2011
    ..Furthermore, we suggest the use of a silver metal membrane filter for direct on-filter analysis of wood dust rather than the glass fiber filters that have been used previously...
  18. doi request reprint Size-selective sampling of particulates using a physiologic sampling pump
    Larry A Lee
    National Institute for Occupational Safety and Health NIOSH, Health Effects Laboratory Division HELD, Morgantown, WV 26505 2888, USA
    J Environ Monit 13:527-35. 2011
    ..The new method makes physiologic sampling of the respirable fraction of particulates feasible...
  19. ncbi request reprint A comparison of X-ray fluorescence and wet chemical analysis for lead on air filters from different personal samplers used in a secondary lead smelter/solder manufacturer
    Martin Harper
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Rd, MS 3030, Morgantown, WV 26505, USA
    J Environ Monit 8:140-6. 2006
    ..Neither this latter sampler nor the IOM or button sampler met the 95% criterion, even for +/-30% accuracy...
  20. doi request reprint A comparison of the CATHIA-T sampler, the GK2.69 cyclone and the standard cowled sampler for thoracic fiber concentrations at a Taconite (iron ore)-processing mill
    Eun Gyung Lee
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Road, MS 3030, Morgantown, WV 26505, USA
    Ann Occup Hyg 52:55-62. 2008
    ..Thus, additional field samples from other environments might be helpful to confirm the performance of these samplers...
  21. ncbi request reprint Evaluation of COSHH essentials: methylene chloride, isopropanol, and acetone exposures in a small printing plant
    Eun Gyung Lee
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
    Ann Occup Hyg 53:463-74. 2009
    ..This was considered a more acceptable alternative to increasing the level of control...
  22. ncbi request reprint Airborne endotoxin in woodworking (joinery) shops
    Martin Harper
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Rd, MS 3030, Morgantown, WV 26505, USA
    J Environ Monit 8:73-8. 2006
    ..The agreement between these studies is encouraging given the difficulties of endotoxin analysis and the wide variation often expected between different laboratories...
  23. pmc Evaluation of the COSHH Essentials model with a mixture of organic chemicals at a medium-sized paint producer
    Eun Gyung Lee
    National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
    Ann Occup Hyg 55:16-29. 2011
    ..The experience of using the web-based COSHH Essentials model generated some suggestions to provide a more user-friendly tool to the model users who do not have expertise in occupational hygiene...
  24. ncbi request reprint A comparison of X-ray fluorescence and wet chemical analysis for lead on air filters from different personal samplers used in a bronze foundry
    Martin Harper
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
    J Environ Monit 7:592-7. 2005
    ..It is important to check carefully factory pre-set instrument calibrations, as a bias in the calibration for copper was observed...
  25. doi request reprint Differentiating non-asbestiform amphibole and amphibole asbestos by size characteristics
    Martin Harper
    Health Effects Laboratory Division, Exposure Assessment Branch, National Institute for Occupational Safety and Health, Morgantown, West Virginia 26505, USA
    J Occup Environ Hyg 5:761-70. 2008
    ..This proposal would need further testing. This research should not be considered as addressing any controversy with regard to the toxicity of non-asbestiform amphibole particles of similar dimensions to asbestos particles...
  26. doi request reprint Evaluation of pump pulsation in respirable size-selective sampling: part II. Changes in sampling efficiency
    Eun Gyung Lee
    National Institute for Occupational Safety and Health, Health Effects Laboratory Division, Exposure Assessment Branch, 1095 Willowdale Road, Morgantown, WV 26505, USA
    Ann Occup Hyg 58:74-84. 2014
    ..Further work is recommended to determine which criterion would be applicable to this test if it is to be retained in its current form. ..
  27. ncbi request reprint Concerning sampler wall deposits in the chemical analysis of airborne metals
    Martin Harper
    National Institute for Occupational Safety and Health, Morgantown, West Virginia, USA
    J Occup Environ Hyg 4:D81-6. 2007
  28. ncbi request reprint Comparison of wood-dust aerosol size-distributions collected by air samplers
    Martin Harper
    National Institute for Occupational Safety and Health, MS 3030 1095 Willowdale Rd, Morgantown, WV 26505, USA
    J Environ Monit 6:18-22. 2004
    ..The results are consistent with some relevant laboratory studies...
  29. ncbi request reprint Exposure to chlorpyrifos in gaseous and particulate form in greenhouses: a pilot study
    Seung Won Kim
    a Health Effects Laboratory Division, Exposure Assessment Branch, National Institute for Occupational Safety and Health, Morgantown, West Virginia
    J Occup Environ Hyg 11:547-55. 2014
    ..SADS gives better guidance on the distribution of chlorpyrifos than does the ESP, although the accuracy of the concentration distribution cannot be verified in the absence of a standardized procedure for determining phase division. ..
  30. doi request reprint Evaluation of pump pulsation in respirable size-selective sampling: part I. Pulsation measurements
    Eun Gyung Lee
    National Institute for Occupational Safety and Health, Health Effects Laboratory Division, Exposure Assessment Branch, 1095 Willowdale Road, Morgantown, WV 26505, USA
    Ann Occup Hyg 58:60-73. 2014
    ..The findings in this study prompted a further study to determine the possibility of shifts in cyclone sampling efficiency due to sampling pump pulsations, and those results are reported subsequently. ..
  31. pmc Acid-soluble internal capsules for closed-face cassette elemental sampling and analysis of workplace air
    Martin Harper
    National Institute for Occupational Safety and Health, Health Effects Laboratory Division, Morgantown, West Virginia 26505, USA
    J Occup Environ Hyg 10:297-306. 2013
    ..For the elements investigated, inter-laboratory precision and recovery estimates from the participating laboratories demonstrated the utility of the cellulosic capsule inserts for the measurement of sampled trace elements...
  32. doi request reprint A novel physiologic sampling pump capable of rapid response to breathing
    Larry Lee
    National Institute for Occupational Safety and Health NIOSH, Health Effects Laboratory Division HELD, Morgantown, WV 26505 2888, USA
    J Environ Monit 11:1020-7. 2009
    ..Analysis of the design and data from a prototype are presented to show how air sampling can be modulated to follow breathing...
  33. doi request reprint Continued participation in an asbestos fiber-counting proficiency test with relocatable grid slides
    Martin Harper
    National Institute for Occupational Safety and Health, Exposure Assessment Branch, Health Effects Laboratory Division, 1095 Willowdale Rd, MS 3030, Morgantown, WV 26505, USA
    J Environ Monit 11:434-8. 2009
    ..Performance for amosite was good. Poor performance for chrysotile appears to be improved by greater attention and training...
  34. doi request reprint 10th Anniversary Critical Review: Naturally occurring asbestos
    Martin Harper
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Rd, Morgantown, WV 26505, USA
    J Environ Monit 10:1394-408. 2008
    ..These responses to 'contamination' by nature deserve further in-depth study...
  35. ncbi request reprint The effect of a proposed change to fiber-counting rules in ASTM International Standard D7200-06
    Martin Harper
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, USA
    J Occup Environ Hyg 4:D42-5. 2007
  36. ncbi request reprint A review of workplace aerosol sampling procedures and their relevance to the assessment of beryllium exposures
    Martin Harper
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Rd, MS 3030, Morgantown, WV 26505, USA
    J Environ Monit 8:598-604. 2006
    ..Some considerations important to the sampling of airborne particles containing beryllium with regard to the sampling conventions, the test protocols and sampler performance are discussed...
  37. ncbi request reprint Extracting metalworking fluid aerosol samples in cassettes by provisional ASTM and NIOSH methods
    Martin Harper
    Department of Environmental Health Sciences, School of Public Health, RPHB 317, University of Alabama at Birmingham, 1530 3rd Avenue S, Birmingham, AL 35294 0022, USA
    AIHA J (Fairfax, Va) 63:488-92. 2002
    ..A small additional blank contribution could be removed by desiccation. The limits of detection and quantitation of the extraction step were calculated to be 28 and 94 micrograms, respectively...
  38. ncbi request reprint ASTM international standards for monitoring chemical hazards in workplaces
    Kevin Ashley
    U S Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Cincinnati, Ohio 45226 1998, USA
    J Occup Environ Hyg 2:D44-7. 2005
  39. ncbi request reprint Assessing workplace chemical exposures: the role of exposure monitoring
    Martin Harper
    Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Rd MS 3030, Morgantown, WV 26505, USA
    J Environ Monit 6:404-12. 2004
    ..Biomonitoring is a complex subject worthy of a separate review, and will be considered only briefly here...
  40. ncbi request reprint A comparison of methods and materials for the analysis of leaded wipes
    Martin Harper
    Department of Environmental Health Sciences, School of Public Health, University of Alabama at Birmingham, 1530 3rd Ave S, Birmingham, AL 35294 0022, USA
    J Environ Monit 4:1025-33. 2002
    ..For Ghost Wipe samples, the precision was different for different industries, and the results could not be pooled. Differences between the two wipe materials may be related to the number of folds required for analysis...
  41. ncbi request reprint Impact of silanol surface density on the toxicity of silica aerosols measured by erythrocyte haemolysis
    Vladimir Murashov
    Health Effects Laboratory Division, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Morgantown, West Virginia, USA
    J Occup Environ Hyg 3:718-23. 2006
    ..These findings suggest a new view of aerosol toxicity based on the estimation of surface site densities. The results can be used in the development of new toxicological assays for respirable particulates, including nanomaterials...
  42. ncbi request reprint The use of thermal desorption in monitoring for the chemical weapons demilitarization program
    Martin Harper
    Department of Environmental Health Sciences, School of Public Health, University of Alabama at Birmingham, 35294 0022, USA
    J Environ Monit 4:688-94. 2002
    ..Lowering limits adds additional difficulties to the monitoring efforts. The various monitoring methods and the role they play in ensuring worker and general population safety are discussed...
  43. doi request reprint The quality of fiber counts using improved slides with relocatable fields
    Thomas W S Pang
    Ryerson University, School of Public and Occupational Health, Room 249A350, Victoria St, Toronto, ON M5B 2K3, Canada
    J Environ Monit 10:89-95. 2008
    ..Ten percent of relocatable slides of routine samples could also be recounted to monitor intracounter variation...
  44. ncbi request reprint Research profile. Martin Harper
    Martin Harper
    J Environ Monit 6:124N-127N. 2004