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Continuing Education — "The Action Level!®"

VOLUME 9(11), November 2012
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:

Effect of Calibration and Environmental Condition on the Performance of Direct-Reading Organic Vapor Monitors
Christopher Coffey, Ryan LeBouf, Larry Lee, James Slaven and Stephen Martin

1. The PID instrument performance was the same regardless
    of the concentration chosen. True or False?

True
False
2. Which calibration method provided instrument results closest
    to the charcoal tube results?
a. Manufacturer's recommended calibration
          method performed under normal environmental
          conditions
b. Chemical of interest calibration method performed
          under sampling environmental conditions
c. Manufacturer's recommended calibration method
          performed under sampling environmental
          conditions
Are Exhalation Valves on N95 Filtering Facepiece Respirators Beneficial at Low-Moderate Work Rates?: An Overview
Raymond J. Roberge

3. Available data indicate that, at low-moderate work rates,
    compared with standard N95 filtering facepiece respirators,
    exhalation valve-equipped N95 filtering facepiece respirators
    may result in all of the following, except:

a. Decreased respirator deadspace temperature
b. Improved speech intelligibility
c. Decreased temperature of the facial skin
          covered by the respirator
d. Decreased moisture retention in the respirator
          filter
4. At low-moderate work rates, which one of the following
    results in a significant effect by exhalation valve-equipped
    N95 filtering facepiece respirators compared to standard N95
    filtering facepiece respirators?
a. Decreased core temperature
b. Decreased heart rate
c. Decreased breathing rate
d. Decreased exhalation resistance
Dynamic Effects of Containment of Air Curtain Fume Hood Operated with Heat Source
Jia-Kun Chen, Rong Fung Huang and Pei-Yi Hsin

5. The leakage levels of the air-curtain hood operated at elevated
    temperatures are significantly lower than those of the
    conventional hood. True or False?

True
False
6. Setting the air-curtain hood at the sash height smaller than
    25 cm for the elevated temperature operation is an appropriate
    strategy to reduce the containment leakage to almost null and
    to save the energy consumption. True or False?
True
False
Pilot Study of Aromatic Hydrocarbon Adsorption Characteristics of Disposable Filtering Facepiece Respirators That Contain Activated Carbon
Tony Rozzi, Jay Synder and Debra Novak

7. The challenge concentration chosen could best be described as:

a. nuisance
b. multiple TLV® concentration
c. fraction TLV® concentration
d. acutely toxic
8. The best descriptor of these findings with respect to the ability
    of the activated carbon layer in these respirators to adsorb
    selected hydrocarbons is:
a. exploratory
b. confirmatory
c. double-blind
d. unnecessary
Characterization and Evolution of Exposure to Volatile Organic Compounds in the Spanish Shoemaking Industry over a 5-Year Period
Carmen Estevan, Francisca Ferri, Miguel Angel Sogorb and Eugenio Vilanova

9. A ranking of the frequency with which OELs were exceeded
    would best correspond to which of the following choices?

a. n-hexane > toluene > acetone > hexane isomers
b. n-hexane > hexane isomers > acetone > toluene
c. n-hexane = hexane isomers > acetone > toluene
d. n-hexane > toluene > hexane isomers > acetone
10. Reformulating adhesives with less or no n-hexane content
      has proved an effective method to reduce exposure intensity
      to n-hexane. True or False?
True
False

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


Deadline for answers is November 30, 2012.

Answers will be available online at
http://www.acgih.org/products/joeh/alanswers.htm
on December 10, 2012.

 
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