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Continuing Education — "The Action Level!®"

VOLUME 4(12), December 2007
Journal of Occupational and Environmental Hygiene

Answer the questions below and click "Submit".

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CASE STUDIES:

Symptoms Experienced by Law Enforcement Personnel during Methamphetamine Lab Investigation
John Martyny, Roxana Witter, Kathryn Mueller, Bibi Gottschall and Lee Newman

1. Over 70% of law enforcement officers investigating clandestine
    methamphetamine laboratories report relevant symptoms
    at or near the time of the investigations. True or False?

True
False
2. Respirator use during the investigation of clandestine
    methamphetamine laboratories was not found to significantly
    reduce the risk of reporting symptoms in law enforcement officers.
    This may be largely due to:
a. Heterogeneous respirator use
b. Incorrect respirators and cartridges
c. Higher exposures for those wearing respirators
d. All of the above
e. None of the above
Repeatability of a Checklist for Evaluating Cab Design Characteristics of Heavy Mobile Equipment
Michael J. Jorgensen, N.K. Kittusamy and Pranathi B. Aedla

3. Work related risk factors for musculoskeletal disorders for
    operators of heavy earthmoving equipment include:

a. age
b. gender
c. whole body vibration
d. carbon monoxide
4. The most effective strategy to address awkward postures due
    to location of controls in the cab of earthmoving equipment may
    be to:
a. use equipment only for tasks that allow
          non-awkward postures
b. retrofit controls with new ones
c. consider tasks and control locations at
          equipment design stage
d. restrict use to operators that have long enough
          limbs
Uncertainty Determination for Non-Destructive Chemical Analytical Methods Using Field Data and Application to XRF Analysis for Lead
David L. Bartley, James E. Slaven, Mike C. Rose, Michael E. Andrew and Martin Harper

5. Which symmetric accuracy range is proposed as a method
    acceptance criteria specific to field evaluation?

a. 20%
b. 25%
c. 30%
d. 35%
6. It is suggested that portable X-ray fluorescence (XRF) analyzers
    can be used to analyze air filter samples, but only if sampler wall
    deposits are not considered part of the sample. True or False?
True
False
Effects of Voltage and Wire Feed Speed on Weld Fume Characteristics
Catherine Hovde and Peter Raynor

7. In a gas metal arc welding operation, short circuit transfer conditions
    produced higher particle concentrations than spray transfer
    conditions. True or False?

True
False
8. The fumes from a gas metal arc welding operation contained a
    higher percentage of manganese than the wire used in the
    welding operation. True or False?
True
False
Rapid Method for Determining Dermal Exposures to Pesticides by Use of Tape Stripping and FTIR Spectroscopy: a Pilot Study
Chang-fu Wu and Hsiao-Hui Chiu

9. Which of the following is the best approach to determine the
    number of factors used in the PLS method?

a. always including five factors
b. including as many factors as possible
c. judging from the PRESS protocol
10. How is the stripping-FTIR method recommended to be utilized
      in the future?
a. as a definite quantification tool
b. as a screening tool
c. as a tool to replace the stripping-GC method
Manganese and Welding Fume Exposure and Control in Construction
John D. Meeker, Pam Susi and Michael R. Flynn

11. The portable local exhaust ventilation unit tested in the study
      was more effective at controlling welder exposures to total
      particulate than exposure to manganese. True or False?

True
False
12. Which of the following is a welding process used in construction?
a. Gas metal arc, or metal inert gas (MIG)
b. Gas tungsten arc, or tungsten inert gas (TIG)
c. Stick, or shielded metal arc (SMAW)
d. Flux cored arc (FCAW)
e. All of the above


Deadline for answers is December 31, 2007.

Answers will be available online at
http://www.acgih.org/products/joeh/alanswers.htm
on January 14, 2008.

 
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