Time variant exposure analysis (TVEA): a measurement tool for characterizing particulate exposure determinants in construction

Details

• Personal Author:
  Buchholz B ; Ellenbecker M ; Holcroft C ; Kalil AJ ; Woskie SR
• Description:
  A work sampling-based approach, time variant exposure analysis (TVEA), was developed for assessment of determinants for particulate air contaminants in dynamic construction environments. To use TVEA, the field researcher records observations at fixed intervals to systematically survey over 30 potential determinants that could affect exposure to three types of particulate matter: quartz-containing dusts, diesel exhaust, and a general grouping of "other particles" that includes welding fume and wood dust. Two field studies were conducted to address questions of inter-rater reliability (n = 20) and coding interval appropriateness (n = 21) for the TVEA method. At least substantial inter-rater agreement (kappa > 0.60) was obtained for the TVEA variables related to tool or machine use, process, material, source intensity, and source orientation. Kappa values for source direction (0.22-0.38) and number of sources (0.38-0.60) showed comparatively lower agreement for all particulate types. Observation interval appropriateness was analyzed using linear regression to compare a 5-min observation interval "gold standard" with alternate intervals. Regression statistics indicated that while 30 min is an acceptable interval for exposure assessment, 15 min optimizes precision and practicality by ensuring that 95% of all observations differ less than ten percentage points from the "true" values. TVEA is a useful exposure assessment tool for the dynamic construction environment. It is flexible in that only those determinants that are of interest need be coded and the coding interval can be adjusted to accommodate the level of precision desired. [Description provided by NIOSH]
• Subjects:
  Air Pollutants, Occupational Air Pollution, Indoor Construction Industry Dust Environmental Monitoring Manufacturing And Industrial Facilities Metals Occupational Health Particulate Matter Quartz Safety Silicon Dioxide Vehicle Emissions Welding Wood Workplace

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• Keywords:
  Air-contamination Author Keywords: Construction Construction Construction-industry Construction-workers Diesel-exhausts Dust-exposure Dust-sampling Dusts Exposure-assessment Exposure Assessment Fumes Machine-operators Metal-fumes Particulate-sampling-methods Particulate Matter Particulates Quartz-dust Sampling Sampling-methods Tools Wood-dusts Work-environment

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• ISSN:
  1545-9624
• Document Type:
  Text
• Funding:
  Cooperative Agreement
• Genre:
  Journal Article
• Place as Subject:
  District of Columbia ; Maryland ; Massachusetts ; OSHA Region 1 ; OSHA Region 3
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  1
• Issue:
  12
• NIOSHTIC Number:
  nn:20040161
• Citation:
  J Occup Environ Hyg 2004 Dec; 1(12):816-825
• Contact Point Address:
  Susan Woskie, Department of Work Environment, One University Avenue, University of Massachusetts Lowell, Lowell, MA 01824
• Email:
  Susan_Woskie@uml.edu
• CAS Registry Number:
  Quartz (SiO2) (CAS RN 14808-60-7)
• Federal Fiscal Year:
  2005
• NORA Priority Area:
  Construction
• Performing Organization:
  The Center to Protect Workers' Rights
• Peer Reviewed:
  True
• Start Date:
  19990930
• Source Full Name:
  Journal of Occupational and Environmental Hygiene
• End Date:
  20050630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:03ebbff9da0baec6f3be719c39bda6ca31539659caab676bacbf33f32dedd6fde62333099213d2bbd1f24087b23d75a376264e9b51f2621b3c4c4fc03be528e9
• Download URL:
  https://stacks.cdc.gov/view/cdc/193116/cdc_193116_DS1.pdf
• File Type:
  [PDF - 405.16 KB ]