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Continuing Education — "The Action Level!®"

VOLUME 2(5), May 2005
Journal of Occupational and Environmental Hygiene

Answer the questions below and click "Submit".

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CASE STUDIES:

WBGT Clothing Adjustments for Four Clothing Ensembles Under Three Relative Humidity Levels
Thomas E. Bernard, Christina L. Luecke, Skai W. Schwartz, K. Scott Kirkland and Candi D. Ashley

1. Which of the following clothing (ensembles) would NOT be
    associated with exposures exceeding the TLV®?

a. Cloth Coveralls
b. NexGen Coveralls
c. Tyvek 1424 Coveralls
d. Tychem QC
2. If the protective clothing required a water barrier but no protection
    from vapors (e.g., NexGen), your decision about the heat stress
    level would be influenced by the humidity. True or False?
True
False
A Survey of Private-Sector Respirator Use in the United States: An Overview of Findings
Brent C. Doney, Dennis W. Groce, Donald L. Campbell, Mark F. Greskevitch, William A. Hoffman, Paul J. Middendorf, Girija Syamlal and Ki Moon Bang

3. According to the 2001 NIOSH/BLS survey of respirator use, what
   percentage of all private establishments are estimated to have
   required respirator use by their employees in the 12 months prior
   to the survey?

a. 9%
b. 4%
c. 14%
d. 19%
4. Of those establishments requiring the use of airline respirators in the
   12 months prior to the survey, what percent had respirator hose
   couplings that were compatible with couplings for other air or
   gas supply lines?
a. 41%
b. 33%
c. 26%
d. 18%
Establishing Site Specific Reference Levels for Fungi in Outdoor Air for Building Evaluation
R. Spicer and H. Gangloff

5. An objective, quantitative evaluation of differences between indoor
   and outdoor bioaerosols is dictated by the mathematical nature
   of the data. For comparing individual fungal types:

a. the data are most often log-normally distributed.
b. the most useful approach is evaluation of
          differences in detection.
c. a limit of detection needs to be specified.
d. average concentrations are often useful for
          comparison.
6. Which of the following will likely bias an evaluation of differences
    between indoor and outdoor bioaerosols such as A. fumigatus?
a. collecting 7 or 8 samples in the afternoon
b. collecting 4 samples in the outdoor air in the
          morning hours
c. collecting 1 sample in the outdoor air in the
          morning, collecting one 1 sample in the afternoon
d. all of the above
Exposures to Atmospheric Effects in the Entertainment Industry
Kay Teschke, Yat Chow, Chris van Netten, Sunil Varughese, Susan M. Kennedy and Michael Brauer

7. What is the purpose of determinants of exposure modeling?

a. To predict exposures for epidemiological studies
b. To determine where to put controls
c. To determine whether controls are working
d. all of the above
8. Theatrical fogs are often in the respirable size range because small
    aerosols sustain the effect for long periods of time during filming.
    True or False?
True
False
Monitoring Human Exposures to Upper Room Germicidal Ultraviolet Irradiation
Melvin W. First, Robert A. Weker, Shojiro Yasui and Edward A. Nardell

9. The TLV® for 254nm UV radiation is 6 millijoules per square
    centimeter (6mJ/cm2) in any continuous 8 hour period. The
    TLV® may also be stated as 0.2 microwatt per square centimeter
    (0.2 uW/cm2) continuously over an 8-hour period. True or False?

True
False
10. The most sensitive organ for which the TLV® for 254nm radiation is
      intended is:
a. the skin.
b. the eyes.
c. the head hair and scalp.
d. the respiratory system.


Deadline for answers is May 24, 2005.

Answers will be available online at
http://www.acgih.org/products/joeh/alanswers.htm
on June 1, 2005.

 
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