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Continuing Education — "The Action Level!®"

VOLUME 3(4), April 2006
Journal of Occupational and Environmental Hygiene

Answer the questions below and click "Submit".

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CASE STUDIES:

What is an Effective Portable Air Cleaning Device? A Review
R.J. Shaughnessy and R.G. Sextro

1. The metric, known as ______ ______ ______ ______, permits
    both an intercomparison of performance among various portable
    air cleaners and a comparison of air cleaner operation to other
    contaminant removal processes. The performance metric is based
    on the measured decay rate of contaminant concentrations with the
    air cleaner operating compared with the measured decay rate with
    the air cleaner turned off.

a. Clean Air Determination Factor
b. Clean Air Regulatory Determinant
c. Clean Air Average Reduction
d. Clean Air Delivery Rate
2. In order for a portable air cleaner to impact particulate contaminant
    removal within the space, it must compete with other removal
    processes such as surface deposition (based on particle size)
    and ventilation (outdoor air exchange). True or False?
True
False
Effect of Floorcovering Construction on Content and Vertical Distribution of Housedust Mite Allergen, Der p I
Simon Causer, Caroline Shorter and Jason Sercombe

3. The majority of house dust mite allergen is found towards the base
    of carpet pile. True or False?

True
False
4. In the same given environment, worn carpet will typically contain:
a. higher levels of mite allergen than hard flooring of
          a similar age.
b. similar levels of mite allergen to hard flooring of
          a similar age.
c. lower levels of mite allergen than hard flooring of
          a similar age.
Design, Construction, and Characterization of a Novel Robotic Welding Fume Generator and Inhalation Exposure System for Laboratory Animals
James M. Antonini, Aliakbar A. Afshari, Sam Stone, Bean Chen, Diane Schwegler-Berry, W. Gary Fletcher, W. Travis Goldsmith, Kurt H. Vandestouwe, Walter McKinney, Vincent Castranova and David G. Frazier

5. Respiratory effects observed in welders have included:

a. metal fume fever
b. bronchitis
c. lung function changes
d. all of the above
6. Welders comprise a homogeneous worker population, and thus their
    health effects are fairly easy to evaluate. True or False?
True
False
Pollution Prevention-Occupational Safety and Health in Hospitals: Alternatives and Interventions
Margaret Quinn, Anila Bello, Catherine Galligan and Thomas P. Fuller

7. Which of the following was not a guiding principle for the P2OSH
    intervention/alternatives assessment model.

a. A material or process cannot be changed
         successfully without understanding its function
         in the production process.
b. A material or process intervention cannot be
         implemented successfully in the long term without
         the participation of the people affected by the
         change.
c. Very few alternative products or processes can be
          categorized in absolutes of "good" or "bad."
d. Enabling legislation must be proposed and
          enacted before effective changes can be made.
8. P2OSH method generally _____________ rigorous exposure
    assessments.
a. embraces
b. neglects
c. is indifferent toward
Performance When Breathing Through Different Respirator Inhalation and Exhalation Resistances During Hard Work
David M. Caretti, Karen M. Coyne, Arthur T. Johnson, William H. Scott, Jr. and Franklin C. Koh

9. Breathing resistance is best conceptualized as
    ________________ for the majority of respirators discussed.

a. avoidable
b. unavoidable
c. irrelevant
10. WOBtot serves as a valid parameter for estimating the combined
      impacts of a respirator's inhalation and exhalation resistance on
      performance. True or False?
True
False
Evaluation of a High-Efficiency, Filter-Bank System
Stephen B. Martin, Jr., Bryan R. Beamer and Ernest S. Moyer

11. Optical particle counters cannot be used to obtain statistically
      significant results from monitoring the overall efficiency of
      high efficiency (≥99.97%) filtration systems. True or False?

True
False
12. To reduce instrument specific bias, it is necessary to swap
      upstream and downstream optical particle counters during real
      time monitoring of filtration system efficiency unless they are:
a. the same make/model
b. "matched" before testing
c. calibrated prior to testing
d. brand new
e. all of the above


Deadline for answers is April 30, 2006.

Answers will be available online at
http://www.acgih.org/products/joeh/alanswers.htm
on May 12, 2006.

 
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