"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.

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.


May 2018 — Volume 15 No 5


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

An Indoor Air Quality Evaluation in a Residential Retrofit Project Using Spray Polyurethane Foam

Shen Tian, Scott Ecoff, John Sebroski, Jason Miller, Harold Rickenbacker and Melissa Bilec

1. TCPP accumulation onto indoor surfaces is primarily caused by the vapor phase TCPP in the indoor air. Settled dust deposition has little impact on TCPP accumulation onto indoor sink materials (e.g., drywall and carpet). True or False?

2. If we were using the flow rate defined in the OSHA 47 method (1 L/min), how many hours do we need to sample MDI in order to get the actual sampling volume in this study?



Residential Inter-zonal Ventilation Rates for Exposure Modeling

Michael Jayjock and Andrew Anthony Havics

3. What is the best single deterministic mixing air exchange rate (ACH) that one should use for a source in a single room of a house?



4. Except for isolated interior rooms and closets, the inter-zonal ACH is ALWAYS larger than whole house ACH. True or False?

Exploring Nighttime Road Traffic Noise: A Comprehensive Predictive Surface for Toronto, Canada

Christopher Drudge, James Johnson, Elaina MacIntyre, Ye Li, Ray Copes, Stanley Ing, Steven Johnson, Sunil Varughese and Hong Chen

5. The World Health Organization guidelines for environmental noise exposure are the same for daytime and nighttime noise. True or False?

6. Environmental noise exposure is associated with:



Airborne Contaminants during Controlled Residential Fires

Kenneth W. Fent, Douglas E. Evans, Kelsey Babik, Cynthia Striley, Stephen Bertke, Steve Kerber, Denise Smith and Gavin P. Horn

7. Using tubing to draw air from the fire structure into the sampling media appeared to result in an underestimation of the area air concentrations of PAHs. What did the authors hypothesize was the main cause of this sample loss?


8. Personal air concentrations of hydrogen cyanide measured from firefighters performing outside ventilation in this study provided strong justification for SCBA use during this job. True or False?

Grouping Schemes of Welding Fume Exposure in Shipyard Welders

Dong-Hee Koh, Sun-Woo Lee, Byeong-Jin Ye, Jung-Il Kim and the Korea Welders Cohort Group

ActLvl_15(5)-_9__



ActLvl_15(5)-_10__

Assessing Indoor Air Quality in New York City Nail Salons

Brian Pavilonis, Cora Roelofs and Carly Blair

ActLvl_15(5)-_11__

12. New nail salons in New York State must install all of the following devices except:



Microbial Hazards during Harvesting and Processing at an Outdoor United States Cannabis Farm

Brett J. Green, James R. Couch, Angela R. Lemons, Nancy C. Burton, Kerton R. Victory, Ajay P. Nayak and Donald H. Beezhold

13. The primary purpose of sequencing 16S rRNA and ITS regions in this study would be to ____________________.




14. Actinobacteria are a diverse and abundant phylum of gram-positive bacteria that can be easily aerosolized into the breathing zone. True or False?

Nanoparticle Concentrations and Composition in a Dental Office and Dental Laboratory: A Pilot Study on the Influence of Working Procedures

Andreja Lang, Maja Ovsenik, Ivan Verdenik, Maja Remškar, and Čedomir Oblak

15. Average nanoparticle concentrations are likely lower during working compared to non-working hours. True or False?

16. Chemical analysis of the collected nanoparticles generally confirmed their origin as ______________.



An Inexpensive Sensor for Noise

Laura Hallett, Marcus Tatum, Geb Thomas, Sinan Sousan, Kirsten Koehler and Thomas Peters

17. Which of the following comes closest to the cost ratio for reference measuring equipment versus that used in this study?



18. While many applications could be envisioned for the devices developed in this study, a principal application might be ______________.





Deadline for answers is May 31, 2018.

Answers will be available online on June 8, 2018.