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Continuing Education — "The Action Level!^Ž"

VOLUME 3(9), September 2006
Journal of Occupational and Environmental Hygiene

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CASE STUDIES:

Comparison of Performance of Three Different Types of Respiratory Protection Devices
Robert B. Lawrence, Matthew G. Duling, Catherine A. Calvert and Christopher C. Coffey

1. Passing any of the three Fit Tests ensured every wearer of having
the minimum level of expected protection. True or False?

True
False

2. Which one of these is NOT a respiratory protective device that
was evaluated in this study?

a. Surgical mask
b. N95 filtering facepiece respirator
c. R95 elastomeric half facepiece respirator
d. N95 elastomeric half facepiece respirator

Characterization of the Skin Penetration of a Hydrocarbon-Based Weapons Maintenance Oil
Darryl P. Arfsten, Carol M. Garrett, Warren W. Jederberg, Erin R. Wilfong and James N. McDougal

3. The rank order of permeation rate from greatest to lowest of
this product follows the relationship:

a. murine > rodent > swine
b. murine > swine > rodent
c. rodent > murine > human

4. The mouse model appears to _____________ estimate dermal
penetration from this product.

a. over-
b. under-

Effect of Physical Exertion on the Biological Monitoring of Exposure of Various Solvents Following Exposure by Inhalation in Human Volunteers: 1. Toluene
Véronique Nadeau, Ginette Truchon, Martin Brochu and Robert Tardif

5. Between the two biological indicators of exposure to toluene
    examined in this study, urinary o-cresol is the only one that
    is sensitive to a moderate level of physical activity (50 watts)
    compared to exposure at rest. True or False?

True
False

6. Which of the following urinary concentrations of o-cresol correspond
    to the values, observed in the present study, after exposure to
    50 ppm of toluene under a moderate workload (TWAI 46 watts), and
    to the current BEI^Ž, respectively.

a. 2.0 mg/l and 1.7 mg/l
b. 1.7 mg/l and 0.5 mg/l
c. 0.87 mg/l and 1.7 mg/l
d. 2.0 mg/l and 0.5 mg/l

Modeling Dermal Exposure – An Illustration for Spray Painting Applications
Michael Flynn, Yoshi Koto, Kenneth Fent and Leena Nylander-French

7. Which of the following parameters affects the amount of overspray
deposited on the forearm during spray painting?

a. the number of hairs on the forearm
b. the size of particles in the overspray
c. the air velocity in the booth
d. all of the above

8. What is the primary deposition mechanism for the particles
considered in the mathematical model?

a. gravity
b. impaction
c. thermophoresis
d. electrostatic forces

Metalworking Fluid Occupational Exposure Limits: A Discussion of Alternative Methods
Howard Cohen and Eugene White

9. This article suggests most companies surveyed are using the
NIOSH MWF REL as a guide for the purchase of new equipment.
True or False?

True
False

10. An appropriate conclusion from reading this article is that a precise
     relationship exists between exposure and adverse health effects
     attributable to the panel of metalworking fluids studied. True or
     False?

True
False

Deadline for answers is September 30, 2006.

Answers will be available online at
http://www.acgih.org/products/joeh/alanswers.htm
on October 13, 2006.

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