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Continuing Education — "The Action Level!®"

VOLUME 9(7), July 2012
Journal of Occupational and Environmental Hygiene


Provide FULL NAME and EMAIL information below, then answer the questions and click "Submit".

Full Name:
E-Mail:

CASE STUDIES:

Evaluation of the Performance of the N95-Companion: Effects of Filter Penetration and Comparison with Other Aerosol Instruments
Samy Rengasamy, Benjamin C. Eimer and Ronald E. Shaffer

1. Electrostatic filter media preferentially capture neutral particles.
    True or False?

True
False
2. A PortaCount® is used to measure particle penetration
    through both filter media and face seal leakage of a respirator.
    True or False?
True
False
Jewelry Boxes Contaminated by Aspergillus oryzae: An Occupational Health Risk?
Anne-Pauline Bellanger, Anaïs Roussel, Laurence Millon, Marcel Delaforge and Gabriel Reboux

3. Search for aflatoxins was performed using:

a. Liquid chromatography
b. Culture analysis
c. Liquid chromatography-mass spectrometry
d. Gas spectrometry
4. Aspergillus flavus and Aspergillus oryzae:
a. Are both well-known carcinogenic aflatoxins
          producers
b. Are both classified in the Flavi section
c. Are both listed in the Generally Recognized
          as Safe (GRAS) category by the Food and Drug
          Administration (FDA)
d. Are easily differentiated from each other by
          molecular biology
Time-Weighted Average Sampling of Airborne Propylene Glycol Ethers by a Solid-Phase Microextraction Device
H.C. Shih, S.W. Tsai and C.H. Kuo

5. The technique of solid-phase microextraction (SPME)
    presents many advantages over conventional analytical
    methods by combining sampling, preconcentration, and
    direct transfer of the analytes into a standard gas
    chromatograph (GC) system. True or False?

True
False
6. Air sampling and analysis method with SPME can only
    be applied to grab sampling mode. True or False?
True
False
Developing Physical Exposure Based Back Injury Risk Models Applicable to Manual Handling Jobs in Distribution Centers
Steven A. Lavender, William S. Marras, Sue A. Ferguson, Riley E. Splittstoesser and Gang Yang

7. Which of the following types of variables was not part of
    the primary multivariate model presented in this paper?

a. Psychosocial constructs
b. Load moments
c. Durations of the time periods between lifts
d. Horizontal forces applied by the workers when
          lifting
8. Which of the following statements best describes estimation
    using a surrogate model as opposed to this study's
    instrumentation?
a. works just as well as the model using the data
          from instrumented backpack apparatus.
b. has good sensitivity but suffers from weaker
          specificity.
c. has good specificity but suffers from weaker
          sensitivity.
d. has poor sensitivity and specificity.
Quantity and Size Distribution of Cough-Generated Aerosol Particles Produced by Influenza Patients During and After Illness
William G. Lindsley, Terri A. Pearce, Judith B. Hudnall, Kristina A. Davis, Stephen M. Davis, Melanie A. Fisher, Rashida Khakoo, Jan E. Palmer, Karen E. Clark, Ismail Celik, Christopher C. Coffey, Francoise M. Blachere and Donald H. Beezhold

9. In general, people cough out a greater total volume of aerosol
    particles when they have influenza compared to when they
    are healthy. True or False?

True
False
10. When people with influenza cough, they produce aerosol
      particles, but the particles are not respirable (that is, they are too
      big to reach the alveolar region of the lungs). True or False?
True
False
Prevalence of Dry Methods in Granite Countertop Fabrication in Oklahoma
Margaret L. Phillips and Andrew C. Johnson

11. Which of the following terms best matches the method
      employed?

a. air sampling and analysis
b. field detection method
c. biomarker correlates
d. descriptive epidemiology
12. If a comparison were made using this study regarding whether
      or not wet methods were used all as opposed to some of the
      time, which of the following relationships would be correct?
a. always wet > sometimes wet
b. always dry > sometimes dry
c. always wet = sometimes wet
d. always wet < sometimes wet

Be sure FULL NAME and EMAIL information are provided at the top of this page before submitting your answers.


Deadline for answers is July 31, 2012.

Answers will be available online at
http://www.acgih.org/products/joeh/alanswers.htm
on August 10, 2012.

 
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