"The Action Level!®"
— Current Quiz


Edited by J. Thomas Pierce, PhD, CIH (1980-2012), DABT (Retired)

“The Action Level!®, a self-study, continuing education program, provides a convenient and interesting opportunity for individuals to expand their knowledge in relevant areas of industrial hygiene, as well as occupational and environmental safety and health. The program is approved by both the American Board of Industrial Hygiene, and the Board of Certified Safety Professionals, which award Certification Maintenance (CM) points and recertification points, respectively, for successful participation.

Participants must read each issue of the Journal, answer “The Action Level!® questions, and return the completed answer sheet at the end of that issue’s “The Action Level!® column. To earn the designated credit, an average score of 70 percent or better is required within a 12-month period. Certified Industrial Hygienists and Certified Associate Industrial Hygienists may earn up to 12 contact hours per year. Certified Safety Professionals may earn up to 1.2 recertification points per year.

Credit is awarded only four times each year—in March, June, September, and December—to participants who score an average of 70 percent or better within each three-month quarter. To earn credit in any quarter, participants must satisfactorily complete answer sheets for all three months of that quarter.

The program is based on a calendar year and subscriptions running from January 1 to December 31 are available to participate in
 “The Action Level!® program. New participants in the program can enroll at any time, but their enrollment fees will be prorated by the number of quarters they are eligible to participate. 

To enroll, click here,  read about the program and click on “register” to complete your registration.  The cost is $219 (ACGIH®/AIHA members)/$249 (nonmembers) for one calendar year running January 1 to December 31. Prorations are available for new participants who purchase after January 31.  Nonmembers are encouraged to become members to take advantage of the member discount. For more information regarding ACGIH® membership, call 513-742-2020, or apply online.  

This continuing education program fee is separate from the Journal subscription cost. The fee covers administration costs, and is nonrefundable. 

Answers must be received by the date listed at the end of each quiz.


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January 2019 — Volume 16 No 1


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Comparison between Personal Sampling Methodologies for Evaluating Diesel Particulate Matter Exposures in Mines; Submicron Total Carbon Corrected for the Adsorption of Vapor-phase Organic Carbon vs. Respirable Total Carbon

Alan Fleck, Virginie Cabelguen, Caroline Couture, Guillaume Lachapelle, Patrick Ryan, Ross Thuot and Maximilien Debia

1. Respirable total carbon concentrations measured in an underground gold mine were higher than sub-micron total carbon concentrations. True or False?

2. Which indicator of diesel engine exhaust is used to assess worker exposures?



Efficacy of Four Cleaning Solutions for the Decontamination of Selected Cytotoxic Drugs on the Different Surfaces of an Automated Compounding System

Matteo Federici, Jacopo Raffaelli, Demis Paolucci, Rudolf Schierl and Irene Krämer

3. Which cleaning solution can imply various drawbacks such as skin and eye irritations, unpleasant odors, formation of mutagenic residues, and surface damage?



4. The cleaning efficacy varies only by the physicochemical properties of the specific surface material. True or False?

Modeling the Role of Fomites in a Norovirus Outbreak

Robert A. Canales, Kelly A. Reynolds, Amanda M. Wilson, Sonia L.M. Fankem, Mark H. Weir, Joan B. Rose, Sherif Abd-Elmaksoud and Charles P. Gerba

5. Microbial exposure models demonstrate that the frequency of facial orifice contacts does not have a relationship with estimated infection risk. True or False?

6. A person can be exposed to norovirus via:



Actual and Simulated Weather Data to Evaluate Wet Bulb Globe Temperature and Heat Index as Alerts for Occupational Heat-related Illness

Courtney E. Morris, Richard G. Gonzales, Michael J. Hodgson and Aaron W. Tustin

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8. Outdoor workers can die of heat stroke when the Heat Index temperature is less than 90°F (32°C). True or False?

Occupational Exposure to Trichloramine and Trihalomethanes: Adverse Health Effects among Personnel in Habilitation and Rehabilitation Swimming Pools

Jessica Westerlund, Ing-Liss Bryngelsson, Håkan Löfstedt, Kåre Eriksson, Håkan Westberg and Pål Graff

9. How many swimming pool employees were included in the study?


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A Field Evaluation of a Single Sampler for Respirable and Inhalable Indium and Dust Measurements at an Indium-tin Oxide Manufacturing Facility

Brie Hawley Blackley, Jenna L. Gibbs, Kristin J. Cummings, Aleksandr B. Stefaniak, Ji Young Park, Marcia Stanton and M. Abbas Virji

11. The dual IOM measurements had good agreement with the respirable cyclone and traditional IOM measurements for respirable indium and inhalable indium, respectively. True or False?

12. Difference between measurements of indium in blood and current respirable indium exposure may be due to:



Endotoxin, Cat, and House Dust Mite Allergens in Electrostatic Cloths and Bedroom Dust

Gisela A. Kristono, Caroline Shorter, Nevil Pierse, Julian Crane and Robert Siebers

13. Cat ownership was significantly associated with endotoxin levels measured by two of the three sampling methods. True or False?

14. Which bioaerosol had moderate to strong correlations between all three sampling methods?



The Impact of Canister Geometry on Chemical Biological Radiological and Nuclear Filter Performance: A Computational Fluid Dynamics Analysis

Samuel G.A. Wood, Nilanjan Chakraborty, Martin W. Smith, Mark J. Summers and Stuart A. Brewer

15. Non-uniform porosity profile of the carbon bed resulting in alternating regions of high and low velocity close to the canister wall has not been posited as breakthrough route. True or False?

16. Carbon backed directly onto the canister rear wall flows in the axial direction from the outside wall toward the canister axis generally resulting in greater pressure drop and a reduction in minimum mean residence time within the bed. True or False?

The Acute Effect of Training Fire Exercises on Fire Service Instructors

Emily R. Watkins, Mark Hayes, Peter Watt and Alan J. Richardson

17. The primary thrust of this work would be better described as applicable to _________________ scenarios.



18. Increase in which of the following is not indicative of an increased risk from a cardiovascular event?





Deadline for answers is February 28, 2019.

Answers will be available online on March 8, 2019.