"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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November 2018 — Volume 15 No 11


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

Choosing the Number of Images and Image Position When Analyzing the UNC Passive Aerosol Sampler for Occupational Exposure Assessment

M. Shirdel, J.N. Sommar, B.M. Andersson, I.A. Bergdahl, H. Wingfors and I.E. Liljelind

1. A pump is used for dust sampling with the UNC Passive Aerosol Sampler. True or False?

2. If a sampler samples dust with a coefficient of variation of 20% and the subsequent analytical step has a coefficient of variation of 8%, what will the overall coefficient of variation be?


Efficiencies and Noise Levels of Portable Surgical Smoke Evacuation Systems

Hans-Martin Seipp, Thomas Steffens, Janine Weigold, Armin Lahmer, Andreas Maier-Hasselmann, Torsten Herzog and Jennifer Herzog-Niescery

3. Which of the following would NOT be a suitable measure to reduce surgical smoke?




4. Surgical smoke, resulting from electrocauterization, can be partly reduced by portable smoke evacuation systems (62–99%). The remaining concentration of approximately E+9 to E+10 particles/m³ is not a health risk for operating room personnel. True or False?

Assessing the Accuracy of Commercially Available Gas Sensors for the Measurement of Ambient Ozone and Nitrogen Dioxide

Kelechi Isiugo, Nicholas Newman, Roman Jandarov, Sergey A. Grinshpun and Tiina Reponen

5. Environmental conditions such as relative humidity did not interfere with the accuracy of the tested NO2 and O3 gas sensors. True or False?

6. The average error between raw readings from the tested sensors (NO2 and O3 gas sensors) and the true concentration of NO2 and O3 was always acceptable (within -25 to +25%). True or False?

Firefighters’ Protective Jackets: Fit to Female Form and Its Effects on Attributes Relevant to Thermal Comfort

Nazia Nawaz and Olga Troynikov

7. Volume of trapped air appeared to affect which of the following?



8. Firefighters’ protective jackets were investigated across the span of sizes including small, medium, large and extra-large. True or False?



Deadline for answers is December 31, 2018.

Answers will be available online on January 11, 2019.