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Continuing Education — "The Action Level!®"

VOLUME 5(8), August 2008
Journal of Occupational and Environmental Hygiene

Answer the questions below and click "Submit".

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CASE STUDIES:

Solid-Phase Microextraction as a Short-Term Sampling Technique for BTEX Occupational Exposure
Patrick Schüpfer and Cong Khanh Huynh

1. According to the TLV-STEL for benzene of 2.5 ppm or
    8 mg/m3, it is possible to monitor the benzene level with
    the standard NIOSH 1501 method using a charcoal tube
    at 100 ml/min flow rate and 15 minutes sampling time?
    True or False?

True
False
2. Which of the following is the best technique to monitor
    the TLV-STEL of benzene:
a. SPME
b. Thermal desorption
c. Cryogenic
d. 3M badge
e. a and b
f. a and c
g. a, b and c
h. None of the above
Seasonal Fine and Coarse Culturable Fungal Constituents and Concentrations from Indoor and Outdoor Air Samples Taken from an Arid Environment
Linda C. Mota, Shawn G. Gibbs, Christopher F. Green, Carissa M. Flores, Patrick M. Tarwater and Melchor Ortiz

3. What is the threshold limit value for fungal bioaerosol exposure?

a. 100 Colony forming units per cubic meter of air
b. 1,000 Colony forming units per cubic meter of air
c. 10,000 Colony forming units per cubic meter of air
d. No threshold limit value currently exists
4. What particle size category was found to contain the
    highest concentration of fungal bioaerosols?
a. Fine
b. Coarse
c. They were equal.
d. There were no particle size categories.
A Survey of Size Fractionated Dust Levels in the U.S. Wood Processing Industry
Medhat Kalliny, Joseph Brisolara, Henry Glindmeyer and Roy Rando

5. Across the wood-processing industry, which of the following
    work activities resulted in the highest size-fractionated dust
    exposures?

a. Sawing
b. Milling
c. Sanding
d. Assembly
6. Overall in this survey, which industry segment exhibited
    the lowest prevailing exposure levels for size-fractionated dust.
a. Furniture manufacturing
b. Sawmill/plywood assembly
c. Secondary millworks
d. Cabinet manufacturing
Biomarkers of Mercury Exposure at a Mercury Recycling Facility in Ukraine
Herman Gibb, Kostj Kozlov, Jose Centeno, Jessie Poulin, Vera Jurgenson, Allan Kolker, Kathryn Conko, Edward Landa, Boris Panov, Yuri Panov and Hanna Xu

7. The practice of mercury recycling is becoming more common.
    True or False?

True
False
8. Effects of occupational exposure to mercury have been
    reported to include:
a. diabetes, heart disease, constipation
b. liver cancer, tremor, hair loss
c. tremor, erethism, proteinuria
d. irritability, brain cancer, tremor
Selecting a Lead Hazard Control Strategy Based on Dust Lead Loading and Housing Condition: I. Methods and Results
Sherry Dixon, Jonathan Wilson, Carol Kawecki, Rodney Green, Janet Phoenix, Warren Galke, Scott Clark and Jill Breysse

9. Lead hazard control options described in the HUD Guidelines
    for the Evaluation and Control of Lead-Based Paint Hazards in
    Housing include:

a. removal of all lead-based paint.
b. stabilization of non-intact-lead-based paint.
c. professional cleaning.
d. a and b
e. a, b and c
10. Site/soil treatments (i.e., treatment of soil, fences, or
      outbuildings) were found to influence one-year floor dust
      lead loadings but not one-year sill dust lead loadings.
      True or False?
True
False
Selecting a Lead Hazard Control Strategy Based on Dust Lead Loading and Housing Condition: II. Application of Housing Assessment Tool (HAT) Modeling Results
Jill Breysse, Sherry Dixon, Jonathan Wilson, Carol Kawecki, Rodney Green, Janet Phoenix, Warren Galke and Scott Clark

11. An "acceptable" treatment strategy is defined as:

a. A local decision made based on local regulations.
b. A local decision made based on local resource
         constraints.
c. A 25% one-year post-intervention failure rate on
         a given surface.
d. A 30% one-year post-intervention failure rate on
         a given surface.
e. Both a and b.
12. Lead hazard control practitioners can use a property's
      HAT rating, combined with baseline paint condition, to
      help determine the treatment intensity needed at the property
      to ensure that one-year post-intervention loadings remain
      below federal standards. True or False?
True
False
Quantifying the Relative Importance of Predictors in Multiple Linear Regression Analyses for Public Health Studies
Yi-Chun E. Chao, Yue Zhao, Lawrence L. Kupper and Leena A. Nylander-French

13. Multiple linear regression analysis is widely used to evaluate
      how an outcome or response variable is related to a set of
      predictors. True or False?

True
False
14. Which of the following choices would not be an objective of
      studies conducted to determine which specific exposure route
      (inhalation, dermal, or ingestion) contributed most to increased
      level(s) of urinary metabolite(s)?
a. ranking of exposure routes
b. determining relative rank order
c. estimating relative importance
d. selecting ideal metabolites for HPLC analysis


Deadline for answers is August 31, 2008.

Answers will be available online at
http://www.acgih.org/products/joeh/alanswers.htm
on September 12, 2008.

 
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