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Continuing Education — "The Action Level!®"

VOLUME 6(6), June 2009
Journal of Occupational and Environmental Hygiene


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CASE STUDIES:

Validity and Reliability of an Occupational Exposure Questionnaire for Parkinsonism in Welders
Angela J. Hobson, David A. Sterling, Brett Emo, Bradley A. Evanoff, Callen S. Sterling, Laura Good, Noah Seixas, Harvey Checkoway and Brad A. Racette

1. During the test-retest, participants were asked to classify
    their job title/duties into one of four categories. Which of
    these four categories had the lowest reliability between test
    and retest?

a. Welder
b. Welder helper
c. Worked around welding
d. Did not work around welding
2. The results of this study indicate that:
a. Participants' self-reported job titles do not
          agree very well with employer records.
b. Validation of occupational history questionnaires
          is not necessary.
c. Participants had high frequencies of Parkinsonian
          symptoms.
d. Participants generally provided both valid and
          reliable work history responses, important for
          historical exposure assessment.
e. Stainless steel welders were more likely to
          provide reliable responses than pipefitters.
Assessment of Exposure to Pyrethroids and Pyrethrins in a Rural Population of the Montérégie Area, Quebec, Canada
Caroline Couture, Marie-Chantale Fortin, Gaétan Carrier, Pierre Dumas, Claude Tremblay and Michèle Bouchard

3. Based on the metabolites excreted in highest amounts
    in the urine, to which pesticides was the study population
    mainly exposed?

a. Permethrin and cyfluthrin
b. Permethrin and cypermethrin
c. Deltamethrin and cypermethrin
d. Pyrethrin and resmethrin
4. In addition to 3-phenoxybenzoic acid, what are the other
    two phenoxy metabolites likely to be produced by the
    biotransformation of permethrin?
a. phenoxybenzyl alcohol and phenoxybenzyl
          esters
b. phenoxybenzyl aldehyde and phenoxybenzyl
          esters
c. phenoxybenzyl alcohol and phenoxybenzyl
          aldehyde
Dust Control Technology Usage Patterns in the Drywall Finishing Industry
Deborah E. Young-Corbett and Maury A. Nussbaum

5. Which of the following is NOT a constituent of drywall joint
    compound (mud)?

a. Calcite
b. Talc
c. Silica
d. Man-made mineral fibers
6. What percentage of drywall finishing firm owners perceived
    "some" or "great" risk to worker health associated with
    drywall dust?
a. 50.4%
b. 85.3%
c. 9.5%
d. 100%
Exposure Modeling in Occupational Hygiene Decision Making
Monika Vadali, Gurumurthy Ramachandran and John Mulhausen

7. What decision statistic is used for decision making under
    the Bayesian statistical framework?

a. 95th percentile point estimate
b. 95th percentile probability distribution
c. 99th percentile
d. 90th percentile
8. In the two-dimensional Monte Carlo simulations, what do
    the outer and inner loops represent?
a. Final decision distributions
b. Control bands
c. Uncertainty and variability of variables
d. Risk
Development of Air Sampling Strategies for Monitoring Common Air Pollutants in a Mission Area at Camp Victoria in Kosovo – Stationary vs. Personal Monitoring
Håkan Wingfors, Lars Hägglund, Roger Magnusson and Karin Höjer

9. How many subgroups were chosen to represent the soldiers?

a. 5
b. 3
c. 2
d. 9
10. Different sampling techniques were used to study exposure.
      Which parameters were sampled with passive samplers
      (based on diffusion)?
a. NO2, SO2, VOC and aldehydes
b. VOC and aldehydes
c. NO2, SO2 and VOC
d. NO2 and SO2
Development of a Computer Program for Permeation Testing Data Analysis
Pengfei Gao, Tyson Weise and Beth Tomasovic

11. The Permeation Calculator calculates all the permeation
    parameters listed in:

a. ASTM F 739 and ISO 6529 standards only
b. ASTM F 739, ASTM F 1383, and ISO 6529
          standards
c. ASTM F 739, ASTM D 6978, and ISO 6529
          standards
d. All four standards
12. To perform the permeation calculations for closed-loop
      permeation testing with discrete sampling, the Permeation
      Calculator first converts the cumulative permeation from
      discrete sampling to that of a continuous sampling
      and then calculates all the permeation parameters in the
      same manner as for continuous sampling. True or False?
True
False

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


Deadline for answers is June 30, 2009.

Answers will be available online at
http://www.acgih.org/products/joeh/alanswers.htm
on July 10, 2009.

 
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