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Related Experiment Videos

Does the wearing of sampling pumps affect exposure?

J W Cherrie1, G Lynch, B S Bord

  • 1University of Aberdeen and Institute of Occupational Medicine, Edinburgh, U.K.

The Annals of Occupational Hygiene
|December 1, 1994
PubMed
Summary

Wearing personal sampling pumps may influence worker behavior and alter occupational exposure measurements. This pilot study found higher organic vapor concentrations when pumps were worn, particularly in flexible work environments.

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Area of Science:

  • Occupational hygiene
  • Industrial toxicology
  • Environmental monitoring

Background:

  • Traditional personal sampling pumps can be bulky and noisy.
  • Potential for sampling pumps to alter worker behavior, affecting exposure measurements.
  • Need to validate the accuracy of occupational exposure assessments.

Purpose of the Study:

  • To test the hypothesis that wearing personal sampling pumps affects workers' measured exposure.
  • To compare exposure measurements obtained using pump-based systems versus diffusive samplers.
  • To identify conditions under which sampling pumps may influence exposure data.

Main Methods:

  • Pilot study comparing pump-based systems and diffusive samplers for organic vapor measurement.
  • Measurements conducted on 13-20 workers across five sites over six working days.

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  • Side-by-side sampling on alternate days, with diffusive samplers used exclusively on other days.

    • Main Results:

    • A significant increase (approx. 50%) in organic vapor concentrations was observed on days pumps were worn at one site.
    • No significant differences in exposure measurements were found at the other four sites.
    • The observed effect was linked to flexible work patterns, seated tasks, and quiet work areas.

    Conclusions:

    • Personal sampling pumps have the potential to influence worker behavior and alter exposure measurements.
    • The impact of sampling pumps on exposure data is context-dependent, particularly in flexible work environments.
    • Diffusive samplers may offer a less behavior-altering alternative for specific occupational hygiene assessments.