"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. 

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August 2019 — Volume 16 No 8


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

Particle and Vapor Emissions from Vat Polymerization Desktop-scale 3-Dimensional Printers

A.B. Stefaniak, L.N. Bowers, A.K. Knepp, T.P. Luxton, D.M. Peloquin, E.J. Baumann, J.E. Ham, J.R. Wells, A.R. Johnson, R.F. LeBouf, F.-C. Su, S.B. Martin, Jr. and M.A. Virji

1. Vat polymerization 3-dimensional printers use solid thermoplastics to build objects. True or False?

2. Differences in emissions between digital light processing (DLP) and stereolithography (SLA) vat printers are likely due to:



Understanding Airborne Contaminants Produced by Different Fuel Packages during Training Fires

Kenneth W. Fent, Alexander Mayer, Stephen Bertke, Steve Kerber, Denise Smith and Gavin P. Horn

3. Compared to other fuel packages, ________ appears to have the lowest potential for exposure to chemicals analyzed in this study.


4. Because chemical concentrations downwind of training structures are above background levels, efforts should be taken to position the fire apparatus upwind from the burning structure. True or False?

Benchmarking Heat Index as an Occupational Exposure Limit for Heat Stress

Ximena P. Garzón-Villalba, Candi D. Ashley and Thomas E. Bernard

5. Based on the data used to propose a benchmark limit using Heat Index, the limit is most suited to:



6. For heat stress evaluations, WBGT (wet bulb globe temperature) is the preferred metric over Heat Index (HI) for the environment. True or False?

Evaluation of Waste Anesthetic Gas Surveillance Program and Isoflurane Exposures during Animal and Human Surgery

Derek Newcomer and Ishveen Chopra

7. OSHA established a PEL of 2 ppm averaged over 8 hours for isoflurane to minimize risk of illness to clinicians performing surgical procedures involving human or animal patients. True or False?

8. Based on the study sample, passive scavenging is the preferred engineering control compared to active scavenging to reduce occupational exposures to waste anesthetic gas during surgical procedures. True or False?

Sources of Error and Variability in Particulate Matter Sensor Network Measurements

Christopher Zuidema, Larissa V. Stebounova, Sinan Sousan, Geb Thomas, Kirsten Koehler and Thomas M. Peters

9. Photometric-equivalent mass concentration measurements are influenced by particle:



10. Direct-reading instruments, calibrated with a test aerosol, may not provide accurate concentration measurements in the environment of interest. True or False?

Experience of Chicagoland Acute Care Hospitals in Preparing for Ebola Virus Disease, 2014-2015

Susan C. Bleasdale, Monica K. Sikka, Donna C. Moritz, Charissa Fritzen-Pedicini, Emily Stiehl, Lisa M. Brosseau and Rachel M. Jones

11. During the 2014-15 Ebola Virus Disease Outbreak, Chicagoland medical centers used which of the following criteria to select personal protective equipment?





12. During the 2014-15 Ebola Virus Disease Outbreak, Chicagoland medical centers selected powered air purifying respirators (PAPR) because of cooling effect and mucous membrane coverage rather than for airborne exposure protection. True or False?

Filtering Performances of 20 Protective Fabrics against Solid Aerosols

Loïc Wingert, Yves Cloutier, Stéphane Hallé, Ali Bahloul, Dominic Tessier, Jean-Luc Giraudel, Patricia Dolez and Ludovic Tuduri
13. The ISO test for Type-5 protective clothing generally provides sufficient knowledge to allow workers to balance comfort and protection. True or False?

14. Type-5 certification generally assesses the clothing performances using particles smaller than 500 nm. True or False?

Personal Protective Equipment Doffing Practices of Healthcare Workers

Linh T. Phan, Dayana Maita, Donna C. Moritz, Rachel Weber, Charissa Fritzen-Pedicini, Susan C. Bleasdale and Rachel M. Jones

15. Which of these organizations is not central to PPE recommendations for infection control?


16. Which of the following was the most likely scenario in this work?





Deadline for answers is August 31, 2019.

Answers will be available online on September 13, 2019.