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Continuing Education — "The Action Level!®"

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

Answer the questions below and click "Submit".

Full Name:
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CASE STUDIES:

Chemical Permeation Testing of Air-Supply Hoses
David W. Bromwich and Roger Braddock

1. Using this method it appears a respirator hose would be a
    ____________source of respiratory exposure.

a. significant
b. insignificant
c. uncalculable
2. The principle of detection employed in this work would best
    be described as:
a. colorimetric
b. gravimetric
c. spectrophotometric
d. atomic absorption
Silica Exposure on Construction Sites: Results of an Exposure Monitoring Data Compilation Project
Mary Ellen Flanagan, Noah Seixas, Paul Becker, Brandon Takacs and Janice Camp

3. What would be the best respirator choice to protect a finish mason
    from quartz while grinding concrete in an unventilated stairwell
    for 4 hours?

a. dust mask
b. half-face cartridge
c. full-face cartridge
d. powered air-purifying
4. Which factor is most significant when asking about assessing
    the quartz hazard on a construction site?
a. construction sector
b. tool
c. environment
d. nearby dust source
Personal Exposure to Airborne Dust and Microorganisms in Agricultural Environments
Shu-An Lee, Atin Adhikari, Sergey A. Grinshpun, Roy McKay, Rakesh Shukla and Tiina Reponen

5. During grain harvesting, fungal spores contributed up to 37% of the
    total number concentration of particles in the size range of 2-10 um.
    True or False?

True
False
6. Which of the following are needed to calculate the aerodynamic size
    of a particle?
a. particle density
b. shape of the particle
c. width and length of the particle
d. all of the above
Blood Pressure Response to One Month Electrolyte-Carbohydrate Beverage Consumption
Delia Roberts

7. Which of the following beverages is most effective for maintaining
    euhydration in workers exposed to strenuous manual labour,
    ambient heat and restricted access to fluids?

a. Water
b. Soft drink
c. Carbohydrate electrolyte beverage
d. Juice
e. Tea
8. Concern over the chronic intake of approximately 75-100 mmol
    sodium in an electrolyte beverage during physical labour does
    not appear to be warranted for an active population, as no changes
    in BP were noted over 30 days. True or False?
True
False
Biological Exposure Indicators: Quantification of Biological Variability Using Toxicokinetic Modeling
Ginette Truchon, Robert Tardif, Pierre-Olivier Droz, Ginette Charest-Tardif and Guillaume Pierrehumbert

9. Which are the two principal factors affecting the total inter-individual
    variability observed during biological monitoring of workers?

a. biological differences between individuals'
          absorption/metabolism and physicochemical
          properties of the substances
b. variability of the ambient levels of chemicals within
          a working area and physicochemical properties of
          the substances
c. biological differences between individuals'
          absorption/metabolism and variability of the
          ambient levels of chemicals within a working area
d. physicochemical properties and the half-lives of
          the substances
10. Indicators presenting high biological variability are poor biological
      monitoring parameters. True or False?
True
False


Deadline for answers is March 31, 2006.

Answers will be available online at
http://www.acgih.org/products/joeh/alanswers.htm
on April 14, 2006.

 
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