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Continuing Education — "The Action Level!®"

VOLUME 7(8), August 2010
Journal of Occupational and Environmental Hygiene


Provide FULL NAME and EMAIL information below, then answer the questions and click "Submit".

Full Name:
E-Mail:

CASE STUDIES:

Ergonomic Best Practices in Masonry: Regional Differences, Benefits, Barriers, and Recommendations for Dissemination
Jennifer Hess, Marc Weinstein and Laura Welch

1. Among practices listed, the greatest disadvantage to
    adopting a particular practice according to masonry
    contractors was:

a. quality concerns
b. safety concerns
c. job site compatibility
d. cost
2. Among practices listed, the greatest advantage to adopting
    a particular practice according to masonry contractors was:
a. worker safety
b. productivity
c. time savings
d. cost savings
Assessment of Occupational Exposure to Manganese and Other Metals in Welding Fumes by Portable X-ray Fluorescence Spectrometer
Wisanti Laohaudomchok, Jennifer M. Cavallari, Shona C. Fang, Xihong Lin, Robert F. Herrick, David C. Christiani and Marc G. Weisskopf

3. Currently, NIOSH has a standard method using portable
    XRF for analysis of what metal?

a. Iron (Fe)
b. Manganese (Mn)
c. Lead (Pb)
d. Copper (Cu)
4. Which sentence is NOT true about the XRF method?
a. It can determine a number of elements
          on the sample simultaneously.
b. It also measures particles adhering to the
          surface of inner walls of the samplers.
c. It has a non-destructive nature of analysis.
d. It is a time-effective and reliable method for
          assessment of metals exposure.
Analysis of Residual Chemicals on Filtering Facepiece Respirators after Decontamination
W.B. Salter, K. Kinney, W.H. Wallace, A.E. Lumley, B.K. Heimbuch and J.D. Wander

5. To qualify as an N95 respirator, production samples of the
    respirator must:

a. remove 95% of all challenging particles
b. remove 95% of challenging particles that
          are 300 nm in diameter
c. remove 95% of particles that are larger than
          299 nm in diameter
d. remove 95% of particles that are smaller than
          301 nm in diameter
6. To remain usable after disinfection, a cleaned N95 respirator
    must:
a. seal to the wearer's face as well as it did
          before treatment
b. operate at the same pressure drop as before
          treatment (dP can increase slightly)
c. operate at the same particle removal efficiency
          as before treatment (must stay above 95% at
          300 nm)
d. all of the above
Determination of Particle Concentration Rankings by Spatial Mapping of Particle Surface Area, Number, and Mass Concentrations in a Restaurant and a Die Casting Plant
Ji Young Park, Gurumurthy Ramachandran, Peter C. Raynor and Gregory M. Olson, Jr.

7. When estimating ultrafine particle exposures, similarly
    exposed groups created using either surface area or number
    concentrations would likely be different than those based
    upon mass concentrations. True or False?

True
False
8. Which of the following statements is (are) true?
a. Visual aerosol maps can convey spatial
          information for aerosol contaminants effectively,
          locate unexpected sources of contaminants
          including engineered and incidental nanoparticles.
b. Mapping can be an invaluable tool in the
          basic characterization step of an exposure
          assessment in workplaces that have regular
          work and processing schedules.
c. Visual aerosol maps can help prioritize
          control measures.
d. All of the above
Dairy Farm Worker Exposure to Awkward Knee Posture During Milking and Feeding Tasks
M.W. Nonnenmann, D.C. Anton, F. Gerr and H.J. Yack

9. Exposure to which of the following physical risk factors
    for musculoskeletal disorders was (were) measured in this
    article?

a. force
b. repetition
c. awkward posture
d. vibration
10. In this article, observational methods were used to assess
      exposure to physical risk factors for musculoskeletal disorders.
      True or False?
True
False
Physiological Effects of Boot Weight and Design on Men and Women Firefighters
Nina L. Turner, Sharon Chiou, Joyce Zwiener, Darlene Weaver and James Spahr

11. Boot weight was found to have a significant effect on oxygen
      consumption in men and women firefighters during treadmill
      walking. True or False?

True
False
12. According to this article, which of the following comparisons
      best applies in terms of boot upper composition?
a. leather vs. fabric
b. leather vs. rubber
c. rubber vs. fabric
d. rubber vs. composite

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


Deadline for answers is August 31, 2010.

Answers will be available online at
http://www.acgih.org/products/joeh/alanswers.htm
on September 9, 2010.

 
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