American Conference of Governmental Industrial Hygienists (ACGIH®), your industrial hygiene, environmental, occupational health and safety resource that advances worker health and safety and offers books, conferences, and education and training courses.

Site MapContact UsFAQsHome


Search  
Advanced

AboutProductsMembershipEducationTLV/BEI ResourcesFoundationResources
Sign up for the ACGIH.ORG Mailing List

Products


Continuing Education — "The Action Level!®"

VOLUME 5(10), October 2008
Journal of Occupational and Environmental Hygiene

Answer the questions below and click "Submit".

Full Name:
E-Mail:

CASE STUDIES:

Professional Judgment and the Interpretation of Viable Mold Air Sampling Data
David Johnson, David Thompson, Rodney Clinkenbeard and Jason Redus

1. Statistical tests to compare indoor and outdoor CFU
    counts for airborne molds are of limited utility because:

a. not enough industrial hygienists know how to
          perform the tests.
b. the tests have low statistical power due to the
          high sample variance.
c. statistical tests are less reliable than professional
          judgment when comparing mold counts.
d. all of the above.
2. Results of this study suggest that:
a. professional judgment results in accurate and
          consistent conclusions about the likely presence
          of an indoor mold source, and should be the
          approach of choice when interpreting airborne
          mold sampling data.
b. in the interpretation of airborne mold sampling
          data alone, professional judgment provides
          generally consistent agreement across
          evaluators about the likely presence of an indoor
          mold source.
c. industrial hygienists who rely on their professional
          judgment to interpret airborne mold sample
          data and recommend corrective actions need
          not concern themselves with potential professional
          liability exposure.
d. professional judgment in the evaluation of airborne
          mold sampling data leads to inconsistent
          conclusions about the presence of an indoor
          source.
Modeling the Wet Bulb Globe Temperature Using Standard Meteorological Measurements
James C. Liljegren, Richard A. Carhart, Philip Lawday, Stephen Tschopp and Robert Sharp

3. The outdoor Wet Bulb Globe Temperature is calculated using
    which of the following expressions?

a. 0.5 * Tnatural wet bulb + 0.5 * Tglobe
b. 0.7 * Tnatural wet bulb + 0.3 * Tglobe
c. 0.7 * Tnatural wet bulb + 0.2 * Tglobe + 0.1 * Tair
d. 0.6 * Tnatural wet bulb + 0.3 * Tglobe + 0.1 * Tair
4. Predictive models of the outdoor Wet Bulb Globe Temperature
    (WBGT) are useful for:
a. assessing the local heat stress environment
b. establishing local work practices in advance
          using forecast or historical meteorological data
c. verifying that local WBGT measurements are
          accurate
d. all of the above
Aniline in Hydrolysed Urine and Plasma — Possible Biomarkers for Phenylisocyanate Exposure
H. Tinnerberg, C.J. Sennbro and B.A.G. Jönsson

5. Phenylisocyanate is a common isocyanate used in the
    production of polyurethane. True or False?

True
False
6. Biomarkers of exposure are NOT good to use:
a. when the workers are wearing personal
          protective equipment.
b. to find the source of exposure.
c. when assessing the exposure after an accident.
d. when there is a dermal exposure.
Expectations Training for Miners using Self-Contained Self-Rescuers in Escapes from Underground Coal Mines
Kathleen M. Kowalski-Trakofler, Charles Vaught, and Michael J. Brnich, Jr.

7. Why is expectations training important for the nation's miners?

a. Miners are tested annually on the nine
          expectations when donning a self-contained
          self-rescuer (SCSR).
b. Miners may determine an SCSR unit is not
          working and discard it, when in fact it
          is functioning.
c. Manufacturers can correct many of the
          behaviors of SCSRs.
d. Learning about what to expect from an SCSR
          will increase the amount of time the unit will
          provide oxygen.
8. What is the most important information a miner should
    retain from expectations training?
a. Some unit hoses are packed in talc and
          consequently everyone coughs when putting
          on the SCSR mouthpiece.
b. Watch the other miners put on their units.
c. As long as you are getting air, the unit is working.
d. Follow the leader.
A Spreadsheet-Based Method for Estimating the Skin Disposition of Volatile Compounds: Application to N,N-Diethyl-m-Toluamide (DEET)
Gerald B. Kasting, Matthew A. Miller and Varsha D. Bhatt

9. Which of the following might be considered as a study weakness?

a. Lack of applicability to DEET
b. Findings not specific to various anatomic sites
c. Failure to consider evaporation
d. Study is perfect, no weakness noted
10. According to the work of these authors, a reasonable conclusion
      is that DEET is a penetration enhancer. True or False?
True
False
Correlation between Respirator Fit and Respirator Fit Test Panel Cells by Respirator Size
Ziqing Zhuang, Dennis Groce, Heinz W. Ahlers, Wafik Iskander, Douglas Landsittel, Steve Guffey, Stacey Benson, Dennis Viscusi and Ronald E. Shaffer

11. The new NIOSH bivariate respirator fit test panel is based
      on face length and face width. True or False?

True
False
12. Manufacturer's respirator size does not significantly influence
     respirator fit within a given NIOSH bivariate panel cell.
     True or False?
True
False


Deadline for answers is October 31, 2008.

Answers will be available online at
http://www.acgih.org/products/joeh/alanswers.htm
on November 10, 2008.

 
MEMBERS ONLY: Link to FREE Online Access to JOEH

MEMBERS ONLY: Link to Applied Archives

Register for "The Action Level!®"

Answer "The Action Level!®" Questions

View "The Action Level!®" Answers

JOEH Feedback Form

JOEH Helpline Info

Submit an Article

 

Last update on 07/14/2008. Questions or problems? Please contact us. © 2013 American Conference of Governmental Industrial Hygienists, 1330 Kemper Meadow Drive, Cincinnati, Ohio 45240, 513-742-2020. ACGIH® and related marks are marks of the American Conference of Governmental Industrial Hygienists. All Rights Reserved. Terms of Access. ACGIH® Privacy Policy. Site Map.