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Continuing Education — "The Action Level!®"

VOLUME 10(10), October 2013
Journal of Occupational and Environmental Hygiene


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CASE STUDIES:

Control of Airborne and Liquid-Borne Fungal and Pet Allergens Using Microwave Irradiation
Yan Wu and Maosheng Yao

1. Microwave irradiation exposure at high power results in
    allergenicity decrease for liquid-borne Asp f 1. True or False?

True
False
2. Microwave irradiation can be used to control airborne
    allergens. True or False?
True
False
Component Analysis of Respirator User Training
Philip Harber, Robert J. Boumis, Jing Su, Sarah Barrett and Gabriela Alongi

3. A written test of learned knowledge is an effective means of
    assuring that workers will properly use respirators. True
    or False?

True
False
4. Which of the following is a common error observed in the study?
a. Not performing valve inspection
b. Placing mask upside down
c. Using only a single strap
d. All of the above
Accuracy of Reported Flash Point Values on Material Safety Data Sheets and the Impact on Product Classification
Diane Radnoff

5. Under the Canadian Workplace Hazardous Materials
    Information System (WHMIS), what is the difference between
    a product classified as flammable versus one classified as
    combustible?

a. Flammable products have a flashpoint <37.8
          degrees Celsius; combustible products have
          a flashpoint between 37.8 and 93.3 degrees
          Celsius.
b. Flammable products have a flashpoint <23
          degrees Celsius; combustible products have a
          flashpoint between 23 and 93 degrees Celsius.
c. Flammable products have a flashpoint <37.8
          degrees Celsius; combustible products have
          a flashpoint greater than 37.8 degrees Celsius.
d. There is no difference. The product class includes
          all products with flashpoints less than 93 degrees
          Celsius.
6. According to the results of this study, how many products
    had a lower measured flashpoint than what was disclosed on
    the material safety data sheet?
a. One quarter of the products sampled
b. One third of the products sampled
c. One half of the products sampled
d. All of the products sampled
N95-Companion Measurement of Cout/Cin Ratios for Two N95 Filtering Facepiece Respirators and One Surgical Mask
Samy Rengasamy and Benjamin C. Eimer

7. N95-Companion measures positively charged particles
    that pass through the leakage and not through filter media.
    True or False?

True
False
8. Two different models of N95 respirators are donned on two
    test subjects. Assume the leak sizes are the same in both
    cases. If Companion measures leakage alone, then the fit
    factor for the two models should be:
a. Similar
b. Different
Viable Viral Efficiency of N95 and P100 Respirator Filters at Constant and Cyclic Flow
Paul D. Gardner, Jonathan P. Eshbaugh, Shannon D. Harpest, Aaron W. Richardson and Kent C. Hofacre

9. In general, physical test aerosols in the most penetrating
    particle size (MPPS) range provide a conservative estimate
    of N95/P100 particulate respirator filter efficiency against
    viable bioaerosols. True or False?

True
False
10. With one exception at the highest cyclic flow rate evaluated
      (i.e., 135 L/min), the average measured viable MS2 penetration
      for the N95 filtering facepiece respirator/cartridge models
      assessed in this study did not exceed ___ percentage.
a. 0.03
b. 1
c. 2
d. 5
e. None of the above
Decontamination of a Hospital Room Using Gaseous Chlorine Dioxide: Bacillus Anthracis, Francisella Tularensis, and Yersinia Pestis
John Lowe, Shawn Gibbs, Peter Iwen and Philip Smith

11. Full-face respirators were donned by study personnel when
      ____ chlorine dioxide concentration was measured outside
      of the decontamination suite?

a. 0.1 ppm
b. 0.3 ppm
c. 1.0 ppm
d. 5.0 ppm
12. The capacity of chlorine dioxide gas to reduce organism
      viability was evaluated for spores of what organism?
a. B. anthracis
b. F. tularensis
c. Y. pestis
d. E. coli
Airborne Allergens, Endotoxins and Particulate Matter in Elementary Schools, Results from Germany (LUPE 2)
Hermann Fromme, Wolfgang Bischof, Silvio Dietrich, Thomas Lahrz, Rudolf Schierl and Ursula Schwegler

13. Endotoxin in PM10 samples was quantified about how
      many times?

a. 30 times
b. 300 times
c. 3000 times
d. none of the above
14. The results of this work would generally support higher
      levels of endotoxin in residences as opposed to schools.
      True or False?
True
False

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Deadline for answers is October 31, 2013.

Answers will be available online at
http://www.acgih.org/products/joeh/alanswers.htm
on November 15, 2013.

 
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