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Continuing Education — "The Action Level!®"

VOLUME 2(9), September 2005
Journal of Occupational and Environmental Hygiene

Answer the questions below and click "Submit".

Full Name:
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CASE STUDIES:

60-Hertz Electric-Field Exposures in Transmission Line Towers
T. Bracken, Russell Senior, and Joseph Dudman

1. For non-uniform electric fields, an exposure description in terms
   of the 'maximum unperturbed field away from conductors' more
   nearly matches:

a. the IEEE Standard
b. ACGIH® TLV®
2. Which of the following terms or conditions does not appear in the
    definition of power-frequency electric field exposure:
a. uniform
b. unperturbed
c. worker present
d. vertical
e. electric
Concepts of Skin Protection: Considerations for the Evaluation and Terminology of the Performance of Skin Protective Equipment
Derk H. Brouwer, Rob J. Aitken, Reinhard Oppl, and John W. Cherrie

3. Laboratory material integrity tests reflect workplace performance of
    skin protective equipment (SPE) appropriately. True or False?

True
False
4. Similar to respiratory protection equipment, assigned protection
    factors have been derived for different types of SPE. True or False?
True
False
Exposure to Fuel-Oil Ash and Welding Emissions During the Overhaul of an Oil-Fired Boiler
Youcheng Liu, Mark A. Woodin, Thomas J. Smith, Robert F. Herrick, Paige L. Williams, Russ Hauser, and David C. Christiani

5. Regarding the exposures to respiratory hazards in the boiler repair
    work as reported in this study, which of the following statements
    is true?

a. Boilermakers' average exposure to vanadium
          during the overhaul exceeded the 2003 TLV®.
b. Boilermakers' highest exposure to vanadium
          was close to the 2003 TLV®.
c. There is no significant difference in nickel
          exposures during the overhaul between
          boilermakers and utility workers.
d. Boilermakers' highest exposure to vanadium was
          6 times the 2003 TLV®.
6. Boilermakers' exposures to both ozone and nitrogen dioxide during
    the overhaul exceeded the 2003 TLV®. True or False?
True
False
Validation of a Solvent-Free Sampler for the Determination of Low Molecular Weight Aliphatic Isocyanates Under Thermal Degradation Conditions
M. Boutin, J. Lesage, C. Ostiguy, and J. Pauluhn

7. Bubblers are effective to collect aerosols of any size. True or False?

True
False
8. Alkenyl isocyanates can be generated during the combustion
    of polyurethane-based paints. True or False?
True
False
Exposures to Refractory Ceramic Fibers in Manufacturing and Related Operations: A 10-Year Update
Carol H. Rice, Linda S. Levin, Eric K. Borton, James E. Lockey, Timothy J. Hilbert, and Grace K. LeMasters

9. In terms of job titles, which is the best conclusion regarding the
    majority of exposure estimates over the 10-year follow-up:

a. stayed about the same
b. dramatic reduction occurred
c. no conclusion possible
d. exposures decreased appreciably during
          final three years
10. An adjustment was made for respirator use. True or False?
True
False


Deadline for answers is September 30, 2005.

Answers will be available online at
http://www.acgih.org/products/joeh/alanswers.htm
on October 10, 2005.

 
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