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Continuing Education — "The Action Level!®"

VOLUME 3(6), June 2006
Journal of Occupational and Environmental Hygiene

Answer the questions below and click "Submit".

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CASE STUDIES:

Pilot Measurements of ELF Contact Currents in Some Electric Utility Occupations
Joseph Bowman, John Niple and Rob Kavet

1. The contact current meter directly measures:

a. the current between a hand and an object
b. the voltage between two extremities
c. the currents in the extremities
d. the voltage between a leg and the ground
2. Potential biological effects from the contact currents measured in
    this pilot study include:
a. burns
b. heart defibrillation
c. changes in cell morphology
d. none of the above
e. all of the above
Estimation of Respirable Dust Exposure Among South African Coal Miners
Rajen N. Naidoo, Noah S. Seixas and Thomas G. Robins

3. The job history information regarding current and former miners was
    obtained through which of the following methods:

a. interviews
b. human resource records
c. comparison to European cohorts
d. an unspecified method
4. The authors support regression modeling for estimating mean dust
    levels using:
a. historical data
b. investigator data
c. combined data
An Evaluation of Conditions that May Affect the Performance of Houseboat Exhaust Stacks in Prevention of Carbon Monoxide Poisonings from Generators
Duane R. Hammond, G. Scott Earnest, Ronald M. Hall and H. Amy Feng

5. The hot exhaust gases from the generators on houseboats are
    injected with water near the end of the exhaust manifold, in a
    process commonly called:

a. water jacketing
b. isobaric cooling
c. energy dissipation
d. indirect injection
6. Carbon monoxide (CO) concentrations measured on houseboats
    having generators fitted with vertical exhaust stacks are lower than
    CO measurements on similar boats with side exhaust.
    True or False?
True
False
House Dust Collection Efficiency of the High Volume Small Surface Sampler on Worn Carpets
Erik Svendsen, Peter Thorne, Patrick O'Shaughnessy, Dale Zimmerman and Stephen Reynolds

7. Visual observation with carpet type specific photographic reference
    scales is the industry standard method for testing carpet wear.
    True or False?

True
False
8. HVS3 total dust collection efficiency was highest in which carpet
    wear category?
a. Low wear
b. Mid wear
c. High wear
Hypersensitivity Pneumonitis in a Hardwood Processing Plant Related to Heavy Mold Exposure
Marc Veillette, Yvon Cormier, Evelyne Israël-Assayaq, Anne Meriaux and Caroline Duchaine

9. What wood processing step is likely to be responsible for mold
    growth on wood surface?

a. debarking
b. drying
c. planing
d. trimming
10. What does the presence of serum IgG mean with regards to the
      workers' health?
a. they were exposed to environmental molds
b. they have hypersensitivity pneumonitis
c. they are allergic to molds
d. it means nothing


Deadline for answers is June 30, 2006.

Answers will be available online at
http://www.acgih.org/products/joeh/alanswers.htm
on July 14, 2006.

 
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