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Continuing Education — "The Action Level!®"

VOLUME 5(2), February 2008
Journal of Occupational and Environmental Hygiene

Answer the questions below and click "Submit".

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CASE STUDIES:

Verifying Interpretive Criteria for Bioaerosol Data Using (Bootstrap) Monte Carlo Techniques
R. Spicer and H. Gangloff

1. The types of fungi universally considered to be most relevant in
    evaluating an indoor environment relative to the outdoors are:

a. Non-phylloplane fungi
b. Aspergillus-Penicillium spores
c. Total spores
d. None are universally agreed upon
2. Modeling the distribution of various interpretive criteria currently
    for airborne fungi using the Monte Carlo method (bootstrap version)
    indicates:
a. outdoor air may be identified as "problematic"
          with a high probability
b. indoor air from areas with visible mold growth
          may be identified as the same as outdoor air a
          substantial portion of the time
c. increased sample size doesn't necessarily
          improve the utility of a given interpretive criterion
d. all of the above
Cleaning Efficacy of High Efficiency Particulate Air-filtered Vacuuming and "Dry Steam" Cleaning on Carpet
Lih-Ming Yiin, Chang Ho Yu, Peter Ashley and George Rhoads

3. A dry steam cleaner can be substituted for a vacuum cleaner
    in carpet cleaning. True or False?

True
False
4. Dry steam cleaning is particularly effective in reducing dust
    levels on the surface of carpet. True or False?
True
False
Continuous Measurement of Peak HF Exposures in Aluminum Smelter Potrooms: Instrument Development and In-Plant Evaluation
Neal Dando, Weizong Xu and Jon Peace

5. Electrochemical sensors are not favored for determination of
    short-term or peak HF exposures in aluminum smelters due to:

a. long response time (> 10 seconds)
b. limited response range
c. cross-sensitivity to SO2
d. all of the above
6. How would a temporal HF exposure profile of 10 ppm for five
    minutes, followed by 30 ppm for one minute, then 0 ppm for eight
    minutes and 20 ppm for one minute appear if characterized using
    a 15-minute STEL cassette, assuming 100% capture efficiency
    of the cassette?
a. 60 ppm minutes
b. 100 ppm minutes
c. 120 ppm minutes
d. 150 ppm minutes
Testing Antimicrobial Paint Efficacy on Gypsum Wallboard Contaminated with Stachybotrys chartarum
M.Y. Menetrez, K.K. Foarde, T.D. Webber, T.R. Dean and D.A. Betancourt

7. Building materials such as gypsum wallboard should be allowed
    to dry before applying antimicrobial paint. True or False?

True
False
8. How can the moisture content of materials be lowered?
a. Eliminate outdoor penetrations
b. Insulate walls and air conveyance ducts
c. Maintain a low relative humidity (below
          60 percent RH)
d. all of the above
Estimating Nurses' Exposures to Ionizing Radiation: The Elusive Gold Standard
Kay Teschke, Yat Chow, Joanna Chung, Pamela Ratner, John Spinelli, Nhu Le and Helen Ward

9. Exposure from x-ray imaging equipment proved to be the most
    common type of ionizing radiation for hospital nurses. True
    or False?

True
False
10. Ninety-one percent of nurses were unlikely to be exposed to
      ionizing radiation. True or False?
True
False
Longitudinal Evaluation of Allergen and Culturable Fungal Concentrations in Inner-City Households
Sook Ja Cho, Gurumurthy Ramachandran, Jason Grengs, Andrew D. Ryan, Lynn E. Eberly and John L. Adgate

11. Concentrations for cat (Fel d 1) and cockroach (Bla g 1)
     allergens and culturable fungi in house dust showed significant
     seasonal variation during the period of study. True or False?

True
False
12. This study supports the use of a single measurement of cat
      allergen (Fel d 1) in house dust as a surrogate for long-term
      measurements since repeated measurements were highly
      correlated. True or False?
True
False
Airport Related Air Pollution and Noise
Beverly S. Cohen, Arline L. Bronzaft, Maire Heikkinen, Jerome Goodman and Arthur Nádas

13. The difference in PM 2.5 measured at sites upwind and downwind
      of an airport eliminates the contribution to PM 2.5 from large
      transported air masses. True or False?

True
False
14. The total amount of acoustic energy detected at residences near
      an airport is suitably characterized by measuring noise in dBA.
      True or False?
True
False
Total Airborne Mold Particle Sampling: Evaluation of Sample Collection, Preparation and Counting Procedures, and Collection Devices
Diana Godish and Thad Godish

15. The factor that appears to have the largest effect on total mold
      spore count variability is:

a. magnification employed
b. mold particle deposition density
c. sampler type
d. percentage of particle deposition area counted
16. Accurate airflow calibration of axial fan driven spore trap samplers
      can be achieved by the use of:
a. rotometers
b. mass flow meters
c. automated bubble calibrators
d. wet test meters


Deadline for answers is February 29, 2008.

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

 
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