Evaluating the Effects of Modified Windscreens on Organic Vapor Monitor Performance

Details

• Personal Author:
  Jones SR ; Lungu CT ; Oh, Je M. ; Shedd JS
• Description:
  Passive sampling using diffusive samplers has become popular as a convenient means of occupational compliance sampling for volatile organic compounds (VOCs). However, diffusive samplers possess sensitivity limitations when sampling low concentrations and for short durations. To reduce these limitations, our research team has been developing a novel method of sample recovery called photothermal desorption (PTD), which uses high energy visible light pulses to desorb analytes from sampling media. Newly designed passive samplers that will use PTD will be equipped with windscreens in a similar design with the 3M OVM. In a preliminary design effort, the present work sought to find a suitable, windscreen for future use in a PTD-compatible diffusive sampler prototype that would be similar to those found in commercially available diffusive samplers. To do so, 2 stainless steel windscreens (wire diameters 0.015" and 0.0055" respectively) were compared to a standard windscreen by exposing modified (ie, steel mesh installed) and non-modified 3M OVM samplers to 3 analytes. To mimic in-field conditions, each sampler was exposed to analyte concentrations at their short-term and personal exposure limits (STELs and PELs). From these comparisons, it was determined that the 0.0055" mesh was most similar to the standard windscreen in contributing to sample collection based on the uptake and concentration determinations for each analyte and concentration. [Description provided by NIOSH]
• Subjects:
  Environmental Monitoring Occupational Health Safety Volatile Organic Compounds
• Keywords:
  Air Sampling Equipment Author Keywords: Volatile Organic Compounds Desorption Diffusive Sampling Equipment Testing Exposure Assessment Gas Chromatography Method Development Photothermal Desorption Sampling Methods VOCs Volatile Organic Compounds

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• ISSN:
  1178-6302
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Alabama ; OSHA Region 4
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-8
• Volume:
  16
• NIOSHTIC Number:
  nn:20067021
• Citation:
  Environ Health Insights 2022 Feb; 16:1-8
• Contact Point Address:
  Claudiu T Lungu, Department of Environmental Health Sciences, University of Alabama at Birmingham, RPHB 520B, 1720 2nd Ave. S, Birmingham, AL 35294-0022, USA
• Email:
  clungu@uab.edu
• Federal Fiscal Year:
  2022
• Performing Organization:
  University of Alabama at Birmingham
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Environmental Health Insights
• End Date:
  20270630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:0e1e8cc497ad558573c8468f19bec3e2bad343cac498d1c4a3d039ab91d1d2f54436fc8ca93e98f3c1c382a875e6273a25f0a63bbd2ade5d879d9d03bb8a7ef6
• Download URL:
  https://stacks.cdc.gov/view/cdc/230922/cdc_230922_DS1.pdf
• File Type:
  [PDF - 555.55 KB ]