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Continuing Education — "The Action Level!®"

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

Answer the questions below and click "Submit".

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CASE STUDIES:

Effect of Söderberg Smelting Technology, Anode Paste Composition and Work Shift on the Relationship Between Benzo[a]pyrene and Individual Polycyclic Aromatic Hydrocarbons
Eric G. Sanderson, Peter J. Kelly and Jean-Pierre Farant

1. Benzo[a]pyrene is a suitable indicator for both individual and total
    PAHs in the ambient air of primary aluminum smelters.
    True or False?

True
False
2. Benzo[a]pyrene relative abundance ratios (B[a]P RARs) for the
    workplace can be used to:
a. estimate retrospective exposures to individual
          PAHs.
b. simplify the exposure assessment process.
c. describe the toxic potential of a mixture of PAHs.
d. study the fate of individual PAH compounds.
e. all of the above
f.  a and b
g. a, b and c
h. a, b and d
Physiologically-Based Modeling of n-Hexane Kinetics in Humans Following Inhalation Exposure at Rest and Under Physical Exertion: Impact on Free 2,5-Hexanedione in Urine and on n-Hexane in Alveolar Air
G. Hamelin, G. Charest-Tardif, G. Truchon and R. Tardif

3. The current ACGIH® BEI® for n-hexane is based on the
    measurement of total urinary 2,5-hexanedione (with hydrolysis)
    at the end of the last shift of the week. True or False?

True
False
4. The results of the sensitivity analysis showed that the blood:air
    partition coefficient is the model parameter that has the greatest
    influence on alveolar n-hexane concentration. True or False?
True
False
Evaluation of Employee Exposure to Organic Tin Compounds Used as Stabilizers at PVC Processing Facilities
Carol Boraiko and John Batt

5. The toxicity of organotins is primarily determined by:

a. the number of tin atoms in the
          compound.
b. the number and size of the alkyl groups in
          the compound.
c. whether the compound is stabilized.
d. the physical state of the organotin.
6. The NIOSH 5504 Analytical method for organic tin compounds
    (modified) provides results as speciation of the individual organic
    tin compounds. True or False?
True
False

Polychlorinated Dibenzo-p-dioxin and Dibenzofuran Concentrations in Serum Samples of Workers at an Infectious Waste Incineration Plant in Japan
Shinji Kumagai and Shigeki Koda

7. Incomplete combustion of disposable medical materials generates
    dioxins. True or False?

True
False
8. Dioxins are eliminated rapidly from the human body. True or False?
True
False
Ergonomics Applications of a Mechanical Model of the Human Operator in Power Hand Tool Operation
Jia-Hua Lin, Robert G. Radwin and David A. Nembhard

9. Which of the following parameters is NOT part of a mechanical
    model that predicts the capacity of human operators to react
    against transient tool-generated forces?

a. Stiffness
b. Compliance
c. Damping
d. Mass
10. The capacity of a human operator to react against transient
      tool-generated forces depends on work location, work surface
      orientation, handle shape, and gender. True or False?
True
False

Assessing Compliance with 60-Hertz Magnetic-Field Exposure Guidelines
Robert M. Patterson, T. Dan Bracken and J. Richard Alldredge

11. Magnetic-field exposure levels are relatively homogeneous among
      similar occupational groups, such as described by job titles,
      making the use of job categories and job exposure matrices a
      useful approach to exposure assessment. True or False?

True
False
12. The probability of complying with exposure guidelines that are
      expressed as ceiling limits, such as those for magnetic fields,
      does not change significantly with increasing sample size for
      equivalent standardized sample means. True or False?
True
False


Deadline for answers is February 21, 2005.

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

 
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