"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 2 points per year. Certified Safety Professionals may earn up to 1.2 points per year.

Points are 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 points 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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October 2018 — Volume 15 No 10


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Evaluating the Use of a Field-based Silica Monitoring Approach with Dust from Copper Mines

Emanuele Cauda, Lauren Chubb, Rustin Reed and Robert Stepp

1. The percent of quartz and other minerals present in the respirable dust in the different mines evaluated is constant. True or False?

2. The article proposes three quantification approaches for crystalline silica using the DoF-FTIR technique. Which one is the most effective?


A Comparison of Respirable Crystalline Silica Concentration Measurements Using a Direct-on-filter Fourier Transform Infrared (FT-IR) Transmission Method versus a Traditional Laboratory X-ray Diffraction Method

Julie F. Hartl, Daniel A. Autenrieth, Emanuele Cauda, Lauren Chubb, Terry M. Spear, Siobhan Wock and Scott Rosenthal

3. The Direct-on-filter quantification of RCS using portable FTIR requires sample preparation. True or False?

4. Which of these statements on the Direct-on-filter Fourier Transform Infrared (FT-IR) Transmission Method is true?



Laboratory Comparison of New High Flow Rate Respirable Size-selective Sampler

Taekhee Lee, Andrew Thorpe, Emanuele Cauda, Leah Tipton, Wayne T. Sanderson and Alan Echt

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6. This study generally confirms 9 L/min as a recommended flow rate. True or False?

Simulations of Dust Dynamics around a Cone Hood in Updraft Conditions

K.I. Logachev, A.M. Ziganshin and O.A. Averkova

7. The goal of simulation of dust dynamics in a cone hood was generally to determine the effect that inflow velocity, suction velocity and terminal settling velocity of dust particles have on the aspiration coefficient in combination with hood length and inclination angle. True or False?

8. Several heuristics reasonably predict precise values of hood flange angle and flange length for capturing updraft flows of dust-laden air. True or False?



Deadline for answers is November 30, 2018.

Answers will be available online on December 5, 2018.