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Continuing Education — "The Action Level!®"

VOLUME 3(10), October 2006
Journal of Occupational and Environmental Hygiene

Answer the questions below and click "Submit".

Full Name:
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CASE STUDIES:

UV Air Cleaners and Upper-Room Air UV Germicidal Irradiation for Controlling Airborne Bacteria and Fungal Spores
Elmira Kujundzic, Fatimah Matalkah, Cody Howard, Mark Hernandez and Shelly Miller

1. UV C lamps inactivated bacteria cells and fungal spores retained
    on the electrostatic filter medium surface. True or False?

True
False
2. What tested air cleaner was found to be the most efficient in
    inactivating/ removing bioaerosols?
a. Ceiling mounted HEPA air cleaner with UV C lamp
b. Electrostatic filter with UV C lamp
c. Ionizer with UV C lamp
d. Electrostatic precipitator
e. Negative ion generator
Behavior of the G.A.B.I.E., 3M 3500, PerkinElmer Tenax TA, and RADIELLO 145 Diffusive Samplers Exposed Over a Long Period to a Low Concentration of VOC
Benoît Oury, Francine Luhillier, Jean-Claude Protois and Yves Morèle

3. The physical theory allowing for the determination of occupational
    exposure to VOC (Volatile Organic Compounds) using diffusive
    samplers is:

a. FICK's first law
b. GÖDEL's second theorem
c. CARNOT's third law
d. ZIDANE's fourth axiom
4. The web-based database where numerous sampling and analysis
    methods for airborne toxic substances at the workplace are
    gathered is:
a. BIOTOX
b. SOLVEX
c. METROPOL
Diacetyl Emissions and Airborne Dust from Butter Flavorings Used in Microwave Popcorn Production
Randy Boylstein, Chris Piacitelli, Ardith Grote, Richard Kanwal, Greg Kullman and Kathleen Kreiss

5. What is a predominant organic compound in artificial butter flavors
    from this study with potential to cause respiratory damage?

a. dimethyltrisulfide
b. ethylenediamine
c. diacetyl
d. benzaldehyde
6. The potential for damage to the respiratory tract is from diacetyl in
    the vapor phase only. True or False?
True
False
Development of a Job Exposure Matrix (JEM) for the Textile Industry in Shanghai, China
Karen Wernli, George Astrakianakis, Janice Camp, Roberta Ray, Chin-Kuo Chang, Gao Dao Li, David Thomas, Harvey Checkoway and Noah Seixas

7. The exposures estimated using the JEM are only applied to
    subjects identified as cancer cases in the epidemiological
    studies. True or False?

True
False
8. In retrospective studies, exposure misclassification is always of
    great concern. What two sources of information were combined to
    assess exposures?
a. expert assessment
b. factory records
c. both expert assessment and factory records
d. neither a nor b
Particle Characteristics in the Reactor and Pelletizing Areas of Carbon Black Production
Tomas Kuhlbusch and Heinz Fissan

9. The best explanation for growing attention regarding toxicity of
    ultrafine particles as evidenced in this study is:

a. high surface area
b. first moment consideration
c. molecular rearrangements
d. volume dimensions
10. The most reasonable conclusion concerning elevated ultrafine
      particle concentrations in reactor and pelletizing areas across
      various plants is:
a. consistently elevated across all plants
b. intermittently or continuously elevated depending
          upon the plant involved
c. seldom elevated in any plant
d. impossible to determine from the article


Deadline for answers is October 31, 2006.

Answers will be available online at
http://www.acgih.org/products/joeh/alanswers.htm
on November 13, 2006.

 
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