"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.

October 2017 — Volume 14 No 10

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

The Uses and Limitations of a Hand-held Germicidal Ultraviolet Wand for Surface Disinfection

George Byrns, Beverly Barham, Liangcheng Yang, Kathryn Webster, George Rutherford, Garrett Steiner, Daniel Petras and Michele Scannell

1. Depending on exposure time, scatter radiation to the operator of a hand-held ultraviolet C (UVC) wand may exceed the occupational exposure limit. True or False?

2. The most significant limitation of using UVC to kill Bacillus subtilis on surfaces appears to be:


Carla Viegas, Tiago Faria, Liliana Aranha Caetano, Elisabete Carolino, Anita Quintal Gomes, and Susana Viegas

3. The waste sorting unit presented:

3. Answer Key:

Interzonal Airflow Rates for Use in Near-field Far-field Workplace Concentration Modeling

Chris Keil and Yuxi Zhao

5. The air and chemical concentrations in the “near field” around a point source of pollution exhibit poor mixing. True or False?

6. Which of the following is the most influential in determining the pollutant concentrations near a point source of pollution?

Contamination of Firefighter Personal Protective Equipment and Skin and the Effectiveness of Decontamination Procedures

Kenneth W. Fent, Barbara Alexander, Jennifer Roberts, Shirley Robertson, Christine Toennis, Deborah Sammons, Stephen Bertke, Steve Kerber, Denise Smith and Gavin Horn

7. Commercially available cleansing wipes were used after firefighting to decontaminate the neck region. What was the median reduction in PAHs on exposed neck anatomy from using these cleansing wipes?

8. Firefighters assigned to Overhaul/RIT had higher median hand contamination than firefighters assigned to Inside Attack. True or False?

Workers’ Exposure to Bioaerosols from Three Different Types of Composting Facilities

Laetitia Bonifait, Geneviève Marchand, Marc Veillette, Hamza M’Bareche, Marie-Eve Dubuis, Carole Pépin, Yves Cloutier and Caroline Duchaine

9. What types of material are composted in the three facilities studied?

10. Bioaerosols exposure in the three different composting plants exceeded the suggested exposure limit values. True or False?

Thoracic and Respirable Aerosol Fractions of Spray Products Containing Non-volatile Compounds

Katharina Schwarz and Wolfgang Koch

11. What are the spray parameters controlling the throracic and respirable release fraction of the non-volatile compound in the spray formulation?

12. The method of determination of the release fraction requires that the air exchange of the control chamber must be zero. True or False?

Behavioural Interventions to Reduce Nickel Exposure in a Nickel Processing Plant

Krassi Rumchev, Helen Brown, Amanda Wheeler, Gavin Pereira and Jeff Spickett

13. Which of the following would likely not constitute a route of exposure to nickel?

14. Factors involving hygiene behavior of workers would likely lead to an improved relationship between environmental and biological exposures. True or False?

Testing the Efficacy of Existing Force-endurance Models to Account for the Prevalence of Obesity in the Workforce

Mojdeh Pajoutan, Lora A. Cavuoto and Ranjana K. Mehta

15. In this study’s sampled population, significantly higher fatigue rates were found for the shoulder flexion and hand grip tasks among what were categorized as obese subjects. True or False?

16. Modes validated to date have sufficient representation from obese individuals. True or False?

Three-axial Evaluation of Whole-body Vibration in Agricultural Telehandlers: The Effects of an Active Cab-suspension System

Frederica Caffaro, Christian Preti, Margherita Micheletti Cremasco and Eugenio Cavallo

17. Which of the following is not particularly noted among off-road operators as a cause of work-related musculoskeletal disorders?

18. Which of the following is not considered an advantage of cab-suspension systems?

Deadline for answers is November 27, 2017.

Answers will be available online on November 30, 2017.