AIHce Indianapolis



PDC 501
Particle Size-Selective Aerosol Sampling: Respirable, Thoracic, Inhalable

introductory | .67 CM Point/ 4 Contact Hours/ 0.5 CEU/COC Point | Sunday | 8:00 a.m. - 12:00 p.m. | Limit: 45

Aerosols, Sampling and Laboratory Analysis

Traditional instruments for monitoring occupational dust exposures include 37-, 25-, and 45-mm open- and closed-face filter cassettes. However, these samplers may not provide a biologically-accurate approximation of particle inhalation efficiency. Progress in our understanding of interactions between aerosolized particles and different regions of human respiratory system spurred development of the ACGIH®/ISO/CEN particle size-selective health-related aerosol size fractions and conventions (respirable, thoracic, and inhalable). Several personal samplers have been developed to mimic health-based inhalable, thoracic, and respirable sampling conventions. Performance characteristics of size-selective samplers commonly available within the US will be discussed and compared to those of “total dust” samplers, such as traditional 37-mm cassettes. Issues related to operation of these samplers and analysis of collected samples will be reviewed.

Basic familiarity with exposure monitoring to dusts.

Upon completion, the participant will be able to:

  • Explain advantages and disadvantages of total aerosol sampling.
  • Introduce the concept of aerosol size-selective sampling and its relation to human health.
  • Discuss instrumentation for inhalable, thoracic, and respirable sampling.
  • Present application-specific size-selective sampling.
  • Review analytical considerations for particle size-selective sampling.


  • Total aerosol sampling – established but outdated technology for respiratory exposure assessment
  • ACGIH®/CEN/ISO particle size-selective health-related fractions and conventions Inhalable sampling instrumentation – examples, performance and trends
  • Respirable and thoracic sampling instrumentation
  • Use of inhalable samplers within different industries
  • Choice of appropriate filters and aerosol sampling techniques for different analytical methods.

Transfer of Knowledge:
Instructors will evaluate participants understanding of the materials presented based on:

  • Hands-on demonstrations and practicum
  • Practice exercises
  • Group activities

Sponsoring Committee:
Aerosol Technology

Important PDC dates:

  • May 18 — E-handout download instructions are e-mailed.
  • June 1  — Contact the AIHA if you have not received your e-handout e-mail.
  • June 1  — AIHce 2012 online communities for collaborative learning open.
  • June 15-17 — AIHce 2012 PDCs are presented. Participants must bring a printed or electronic copy of their PDC handout.
  • August 31 — AIHce 2012 online communities for collaborative learning close.
  • August 27 Educational transcripts updated and available for download