American Conference of Governmental Industrial Hygienists (ACGIH®), your industrial hygiene, environmental, occupational health and safety resource that advances worker health and safety and offers books, conferences, and education and training courses.

Site MapContact UsFAQsHome


Search  
Advanced

AboutProductsMembershipEducationTLV/BEI ResourcesFoundationResources
Sign up for the ACGIH.ORG Mailing List

Products


Continuing Education — "The Action Level!®"

VOLUME 4(11), November 2007
Journal of Occupational and Environmental Hygiene

Answer the questions below and click "Submit".

Full Name:
E-Mail:

CASE STUDIES:

Survey Assessment of Worker Dermal Exposure and Underlying Behavioral Determinants
Laura Geer, Daniel Anna, Barbara Curbow, Marie Diener-West, Berna van Wendel de Joode, Clifford Mitchell and Timothy Buckley

1. Among workers studied, which choice proved to be the most
    important determinant of dermal exposure?

a. type of PPE
b. job task
c. worker behavior
d. length of employment
2. The level of confidence workers felt about their protection served
    as a predictor of their protective behavior. True or False?
True
False
Determining Acute Health Hazard Ratings in the Absence of Applicable Toxicological Data
Fred Simmons, David Quigley, Dave Freshwater, Helena Whyte, Lydia Boada-Clista and J.C. Laul

3. A significant correlation exists between each NFPA health rating
    (based on the LD50) and comparable occupational exposures
    (TLVs® and PELs). True or False?

True
False
4. The NFPA and HMIS health hazard rating schemes differ because
    an HMIS adds consideration of carcinogenicity to that of acute
    health hazards. True or False?
True
False
Nontuberculous Mycobacteria in Aerosol Droplets and Bulk Water Samples from Therapy Pools and Hot Tubs
Craig S. Glazer, John W. Martyny, Ben Lee, Tracy L. Sanchez, Tricia M. Sells, Lee S. Newman, James Murphy, Leonid Heifets and Cecile S. Rose

5. The presence of elevated levels of non tuberculous Mycobacteria
    (NTM) in hot tubs and therapy pools may be due to which of the
    following factors?

a. bacterial thermal tolerance
b. disinfectant tolerance
c. poor water quality
d. presence of a biofilm
e. all of the above
6. Elevated levels of NTM in hot tubs and therapy pools may result
    in which of the following?
a. skin rashes
b. TB
c. hypersensitivity pneumonitis
d. asthma
e. all of the above
Friction and Impact Surfaces: Are They Lead-Based Paint Hazards?
Sherry Dixon, Jonathan Wilson and Warren Galke

7. Which has a significant effect on floor dust lead loading?

a. paint lead level (door components)
b. condition of paint (door components)
c. rubbing/binding (door)
d. none of the above
8. Code of Federal Regulations, Title 40, Part 745.2001 for lead risk
    assessment includes examination of painted friction or impact
    surfaces only if there are other lead hazards present. True or False?
True
False
Driver Exposure to Combustion Particles in the U.S. Trucking Industry
M.E. Davis, T.J. Smith, F. Laden, J.E. Hart, A.P. Blicharz, P. Reaser and E. Garshick

9. Particulate levels observed in non-smoking driver cabs were not
    significantly different than the levels observed in smoking driver
    cabs. True or False?

True
False
10. Particulate levels proved higher among older truck models.
      Particulate exposures for a 1980 truck would be expected
      to exceed those for a comparable model manufactured in 1999.
      True or False?
True
False
Field Evaluation of an Engineering Control for Respirable Crystalline Silica Exposures During Mortar Removal
Scott Collingwood and William A. Heitbrink

11. Airflow rates proved stable and consistent as vacuum cleaners
     captured debris from mortar removal. True or False?

True
False
12. The authors conclude that:
a. The vacuum cleaner and exhaust hood provide
          sufficient control so that other control measures
          are not needed.
b. In addition to the vacuum cleaner and exhaust
          hood, respirators are needed to control worker
          dust exposures.
c. A comprehensive program including local exhaust
          ventilation, equipment selection, equipment
          maintenance, worker training, work practices that
          facilitate optimal dust capture, and respiratory
          protection is needed to control workers'
          dust exposure.
Predicting Worker Exposure – the Effect of Ventilation Velocity, Free-Stream Turbulence and Thermal Condition
Jun Li, Ibrahim Yavuz, Ismail Celik and Steve Guffey

13. The buoyancy generated by the body heat is more important
      at very low velocities than at high velocities when the mannequin
      faces downstream and holds a gaseous contaminant source.
      True or False?

True
False
14. The dimensionless parameter used to characterize the free-stream
      turbulence is:
a. the Reynolds number
b. the turbulence intensity
c. the Grashof number
Inhibiting the Transport of Hazardous Spores Using Polymer-based Solutions
Paula A. Krauter, D. Mark Hoffman, Alexander K. Vu, Garrett A. Keating and David M. Zalk

15. Which of the following is the most significant issue for industrial
      hygienists to consider relative to decontaminating a bioaerosol
      event (Hint: particle size and character)?

a. Reaerosolization
b. Deposition
c. Spore destruction
16. Water spray completely inhibits weaponized spore
      reaerosolization. True or False?
True
False


Deadline for answers is November 30, 2007.

Answers will be available online at
http://www.acgih.org/products/joeh/alanswers.htm
on December 12, 2007.

 
MEMBERS ONLY: Link to FREE Online Access to JOEH

MEMBERS ONLY: Link to Applied Archives

Register for "The Action Level!®"

Answer "The Action Level!®" Questions

View "The Action Level!®" Answers

JOEH Feedback Form

JOEH Helpline Info

Submit an Article

 

Last update on 09/10/2007. Questions or problems? Please contact us. © 2013 American Conference of Governmental Industrial Hygienists, 1330 Kemper Meadow Drive, Cincinnati, Ohio 45240, 513-742-2020. ACGIH® and related marks are marks of the American Conference of Governmental Industrial Hygienists. All Rights Reserved. Terms of Access. ACGIH® Privacy Policy. Site Map.