"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 Continuance of Certification (COC) 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 CM or COC 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.

Beginning in 2016, only calendar year subscriptions running from January 1 to December 31 will be 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.


November 2017 — Volume 14 No 11


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

Performance Evaluation of Mobile Downflow Booths for Reducing Airborne Particles in the Workplace

Li-Ming Lo, Braden Hocker, Austin E. Steltz, John Kremer and H. Amy Feng

1. A downflow booth is operated at slightly lower pressure than its surroundings. True or False?

2. What is a safe working zone (limit) of the downflow booth if it is measured from the rear exhausts and expressed by percentage of the depth of the booth?



Trends of ATV Use and Associated Injury on Saskatchewan Farms

Lynne Clay, Stephan Milosavljevic, Niels Koehncke, James Dosman and Catherine Trask

3. What percentage of Saskatchewan farmers used an ATV more than 100 days per year?



4. Results suggest there is no relationship between neck/back pain and ATV use in farmers. True or False?

Exposure to Benzene in a Pooled Analysis of Petroleum Industry Case-Control Studies

D.C. Glass, A.R. Schnatter, G. Tang, T.W. Armstrong and L. Rushton

5. Participants from the Canadian study had the highest mean cumulative exposure only because they had the highest mean intensity. True or False?

6. In this study, pooling data was more advantageous than a meta-analysis because:




Profiles of Law Enforcement Agency Body Armor Policies – A Latent Class Analysis of the LEMAS 2013 Data

Weiwei Liu and Bruce Taylor

7. The study found four clusters of law enforcement agencies (LEA) in terms of their body armor policies. It was found that agency type is significantly related to the likelihood of an LEA belonging to one of the clusters. Compared to local agencies, Sherriff's departments are less likely to be in:





8. Over half of the law enforcement agencies in the U.S. required their officers to be trained for the proper wear, care and maintenance of the armor in 2013. True or False?

Air, Hand Wipe, and Surface Wipe Sampling for Bisphenol A (BPA) among Workers in Industries That Manufacture and Use BPA in the United States

Cynthia J. Hines, Matthew V. Jackson, Annette L. Christianson, John C. Clark, James E. Arnold, Jack R. Pretty and James A. Deddens

9. In this study, those in the job of working with molten BPA-filled wax had the highest air and post-shift hand wipe BPA levels. True or False?

10. Which of the following factors in the stepwise regression model was not a significant determinant of increased BPA air concentrations?



Improved Hearing Protector Attenuation through the Use of a Lubricant

Timothy J. Ryan, Rebecca S. Meier and Ashley Tatarka

11. Results generally suggest that lubricated right ear plugs were more readily fitted properly by inexperienced users. True or False?

12. Most earplugs will perform better with the use of lubricant, at least for the short-term. True or False?

Transfer of Bacteriophage MS2 and Fluorescein from N95 Filtering Facepiece Respirators to Hands: Measuring Fomite Potential

Tyler M. Brady, Amanda L. Strauch, Claudia M. Almaguer, George Niezgoda, Ronald E. Shaffer, Patrick L. Yorio and Edward M. Fisher

13. Viruses can be transferred from a contaminated filtering facepiece respirator to wearer’s hands when doffing. True or False?

14. In healthcare settings, the Centers for Disease Control and Prevention recommend doffing filtering facepiece respirators by:


Models for Nearly Every Occasion: Part III – One Box Decreasing Emission Models

Paul Hewett and Gary H. Ganser

15. Which of the following is not required when using a “decreasing emission” steady state equation to predict the average concentration for a task?



16. The model calibration procedure only calibrates the steady state models. True or False?

Models for Nearly Every Occasion: Part IV – Two Box Decreasing Emission Models

Gary H. Ganser and Paul Hewett

17. A portable laboratory hood, with filtered recirculation, has been purchased for tasks involving solvents and glues. Which transient model should be applied to this scenario?



18. The time T required to achieve ZnZ conditions decreases whenever the emission rate constant increases. True or False?



Deadline for answers is November 30, 2017.

Answers will be available online on December 15, 2017.