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Related Experiment Videos

A Simple and Disposable Sampler for Inhalable Aerosol.

Christian L'Orange1, Kimberly Anderson1, Darrah Sleeth2

  • 11.Department of Mechanical Engineering, Colorado State University, Fort Collins, CO 80526, USA;

The Annals of Occupational Hygiene
|October 16, 2015
PubMed
Summary
This summary is machine-generated.

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A new disposable inhalable aerosol sampler was developed to overcome cost and complexity barriers. This innovative design simplifies personal exposure assessment for airborne hazards, improving worker safety.

Area of Science:

  • Occupational Health and Safety
  • Environmental Science
  • Aerosol Science and Technology

Background:

  • Current personal samplers for inhalable aerosol hazards are often costly and complex, hindering widespread adoption by industrial hygienists.
  • This limits routine assessment of personal exposures for a significant portion of the at-risk workforce, despite known health risks.
  • Existing technologies present challenges in practical application for assessing inhalable aerosol exposures.

Purpose of the Study:

  • To develop and evaluate a novel, disposable inhalable aerosol sampler.
  • To create a sampler that is both less expensive and simpler to use than current technologies.
  • To address the limitations of existing personal sampling devices for inhalable aerosols.

Main Methods:

Keywords:
air pollutionexposurelow costparticulate mattersampling efficiencywall deposits

Related Experiment Videos

  • A disposable inhalable aerosol sampler with an integrated capsule-filter assembly was designed.
  • Laboratory evaluations included testing sampling efficiency and wall losses in a low-velocity wind tunnel (9.5–89.5 μm particles).
  • Filter weight stability and time-to-equilibrium were assessed, with comparisons made to the IOM sampler and a proposed low-velocity inhalability criterion.

    • Main Results:

    • The new sampler demonstrated good agreement with the IOM sampler and the proposed low-velocity inhalability curve.
    • Sampling efficiency and wall loss tests showed promising results within the tested particle size range.
    • The capsule-filter assemblies reached equilibrium within 25 hours and exhibited stability within 0.01mg.

    Conclusions:

    • The developed disposable inhalable aerosol sampler offers a potentially more accessible and user-friendly alternative for personal exposure monitoring.
    • Its design simplifies gravimetric analysis by incorporating deposited particles, reducing the need for internal cassette cleaning.
    • This innovation could enhance the routine assessment of inhalable aerosol hazards for a broader segment of the workforce.