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Continuing Education — "The Action Level!®"

VOLUME 9(2), February 2012
Journal of Occupational and Environmental Hygiene


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CASE STUDIES:

Confined Space Emergency Response: Assessing Employer and Fire Department Practices
Michael P. Wilson, Heather Madison and Stephen Healy

1. After arrival on scene, a fire department rescue from a
    confined space typically consists of which four phases?

a. Communicate with dispatch, ventilate the
          space, access the space, extricate the worker
b. Establish a rescue platform, access the worker,
          provide advanced life support intervention in
          the space, decontaminate as needed
c. Assess and mitigate hazards, establish a
          rescue platform, access and extricate the worker,
          provide advanced life support intervention
d. Set up incident command, establish
          communications with the rescue team,
          access the worker, provide advanced life
          support in the space
e. Access the worker, provide advanced life
          support, extricate the worker,
          decontaminate as needed
2. The extended rescue time estimates made by fire
    department officers illustrate that:
a. It is reasonable for employers to rely on
          fire department technical rescue units for
          permit required confined space emergency
          response.
b. Most first responding fire department crews
          are able to safely affect a confined space rescue,
          even when hazardous materials are present.
c. Delays can sometimes occur as crews await
          the arrival of mutual aid from neighboring
          jurisdictions.
d. Fire departments are usually not able to affect
          a rescue in a timely manner if a life threatening
          event occurs inside a confined space during an
          entry.
e. Communications systems are the usual cause
          of delays for fire department rescues; improved
          communication systems are likely to mitigate
          this problem in the future.
Volatile Organic Compounds in Headspace over Electrical Components at 75 to 200°C – Part 1. Identification of Constituents and Emission Rates
N.D. Paz, J.E. Rodriguez and G.A. Eiceman

3. Volatile organic compounds (VOCs) arise in headspace over
    electrical components, during pre-ignition heating, in amounts
    that are detectable by direct sampling with modern chemical
    instrumentation. True or False?

True
False
4. The VOC patterns characteristic of individual electrical
    components portend a future pre-fire alarm that is specific to
    a particular source or location on aircraft or spacecraft. True
    or False?
True
False
Comparison of a Novel Surface Laser Scanning Anthropometric Technique to Traditional Methods for Facial Parameter Measurements
Paula S. Joe, Yasushi Ito, Alan M. Shih, Riedar K. Oestenstad and Claudiu T. Lungu

5. Intrasubject variation is to be expected in anthropometric
    measurement. True or False?

True
False
6. Digital methods of anthropometric measurement collection
    are less precise than manual methods. True or False?
True
False
Nanoparticle Filtration Performance of NIOSH Certified Particulate Air Purifying Facepiece Respirators: Evaluation by Light Scattering Photometric and Particle Number-based Test Methods
Samy Rengasamy and Benjamin C. Eimer

7. Nanoparticle penetration through respirator filters can be
    measured more accurately by a method based on
    _________________.

a. Number concentration
b. Mass concentration
c. concentration
8. Respirators containing electrostatic filter media should be
    tested using dioctyl phthalate aerosols with a count median
    diameter of 185 nm. True or False?
True
False
Exposure Assessment and Modeling of Quartz in Swedish Iron Foundries for a Nested Case-control Study on Lung Cancer
Lena Andersson, Ing-Liss Bryngelsson, Yen Ngo, Carl-Göran Ohlson and Håkan Westberg

9. The determinants of quartz exposure are time period, type
    of foundry, job title, and age. True or False?

True
False
10. The correlation coefficient between duration and cumulative
      exposure for controls is _________.
a. 0.89
b. 0.95
c. 0.97
Evaluation of the Approach to Respirable Quartz Exposure Control in U.S. Coal Mines
Gerald J. Joy

11. The effective MSHA exposure limit for respirable quartz in
      coal mines is 150 µg/m3. True or False?

True
False
12. Extra-pulmonary effects consistent with exposure to
      respirable quartz include scleroderma, rheumatoid
      arthritis and renal disease. True or False?
True
False
Performance of Conventional and Antimicrobial-treated Filtering Facepiece Respirators Challenged with Biological Aerosols
Michael B. Lore, John M. Sebastian, TeAnne L. Brown, Andrew S. Viner, Nicole V. McCullough and Steven H. Hinrichs

13. This research found that the biological particles (e.g.,
      spores, bacteria, or viruses) penetrating through the
      respirators having an antimicrobial treatment were
      _____________ than the biological particles penetrating
      through the conventional respirators (i.e., those without an
      antimicrobial treatment).

a. less viable (i.e., less able to grow and reproduce)
b. no different
c. more viable (i.e., more likely to grow and
          reproduce)
d. This research did not address this question.
14. This research, consistent with previous studies, reported
      that biological particles (e.g., spores, bacteria, or viruses) are
      filtered with ________________ non-biological particles (e.g.,
      salt particles) in the same size range.
a. greater penetration than
b. similar penetration to
c. less penetration than
d. This research did not address this question.

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Deadline for answers has been extended to March 9, 2012.

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on March 16, 2012.

 
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