"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 Global EHS Credentialing®, 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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October 2019 — Volume 16 No10


Provide FULL NAME and EMAIL information below, then answer the questions and click "Submit".

Cleaning Workers’ Exposure to Volatile Organic Compounds and Particulate Matter during Floor Polish Removal and Reapplication

Joonas Ruokolainen and Marko Hyttinen

1. What are the main exposure agents related to chemical floor polish removal and floor polish application?


2. There is no difference in the exposure of a cleaning worker between the dry floor polish removal and chemical floor polish removal. True or False?

Passive Personal Air Sampling of Dust in a Working Environment – A Pilot Study

Mariam Shirdel, Ingvar A. Bergdahl, Britt M. Andersson, Håkan Wingfors, Johan N. Sommar and Ingrid E. Liljelind

3. Passive personal air sampling of chemical substances is fairly common. But how common is it for dust?


4. The passive sampler uses gravity and diffusion, but no pump, to collect particles. True or False?

Potential for Occupational Exposures to Pathogens during Bronchoscopy Procedures

Maryshe Zietsman, Linh T. Phan and Rachael M. Jones

5. Particle concentrations during bronchoscopy procedures are variable, exhibiting short-term peak exposures. True or False?

6. Characteristics of observed bronchoscopy procedures that may contribute to the risk of infection among pulmonologists include:




Respiratory Deposition of Ultrafine Welding Fume Particles

Wei-Chung Su, Jun Wang, Yi Chen and Marcio Bezerra

7. Which of the following best describes the morphology of welding fume particles?



8. In this study, the respiratory depositions of welding fume were found to be generally equivalent to that of NaCl particles. True or False?

Respirable Crystalline Silica Is a Confirmed Occupational Exposure Risk during Hydraulic Fracturing: What Do We Know About Controls: Proceedings from the Silica in the Oilfield Conference

Eric J. Esswein, Bradley King, Mwangi Ndonga and Evgeny Andronov

9. Conference presentations at the Silica in the Oilfield Conference reported that use of treated sand was an engineering control used to minimize exposure of respirable crystalline silica aerosols during hydraulic fracturing operations. True or False?

10. According to the article, what control (or controls) were suggested as appropriate to best minimize workplace exposures to respirable crystalline silica aerosols during hydraulic fracturing operations?






Deadline for answers is October 31, 2019.

Answers will be available online on November 8, 2019.