"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 complimentary to ACGIH® members; $219 for AIHA members; and $249 for 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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April 2020 — Volume 17 No 4

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Contribution of Various Types and Categories of Diesel-powered Vehicles to Aerosols in an Underground Mine

Aleksandar D. Bugarski and Jon A. Hummer

1. Exposures of underground miners to diesel aerosols can be attributed solely to the emissions from heavy-duty diesel-powered vehicles operated in their vicinity. True or False?

2. Retrofit-type diesel particulate filter systems are a very effective control strategy for reducing diesel particulate emissions from existing heavy-duty diesel-powered fleets. True or False?

Glove Permeation of Chemicals: The State of the Art of Current Practice – Part 2. Research Emphases on High Boiling Point Compounds and Simulating the Donned Glove Environment

S. Banaee and S.S. Que Hee

3. The worst case scenario in glove chemical permeation risk assessment to humans includes the assumption that all the mass permeated by the glove exposes the underneath skin of the hand. True or False?

4. The glove permeation of a chemical that causes swelling is best explained through solubility theory. True or False?

Chemical Permeation of Similar Disposable Nitrile Gloves Exposed to Volatile Organic Compounds with Different Polarities Part 1: Product Variation

Brittany Claire Brown, Anton Dubrovskiy, Aleksandre Roman Gvetadze, and Robert N. Phalen

5. Which of the following factors, associated with polarity, appears to play a role in the permeation breakthrough time and/or permeation rate of organic solvents through disposable nitrile gloves?

6. In the absence of product chemical permeation testing data, generic or general chemical resistance data can provide a reliable indication of expected product chemical resistance to permeation. True or False?

Chemical Permeation of Similar Disposable Nitrile Gloves Exposed to Volatile Organic Compounds with Different Polarities Part 2: Predictive Polymer Properties

Robert N. Phalen, Brittany Claire Brown, Aleksandre Roman Gvetadze, and Mariela Bustillos

7. Which of the following parameters appears to play a role in the permeation breakthrough time and/or permeation rate of organic solvents through disposable nitrile gloves?

8. In general, increases in disposable nitrile glove thickness and/or area density are associated with increased resistance to chemical permeation. True or False?

Comparison between OSHA-NIOSH Heat Safety Tool App and Wet Bulb Globe Temperature Monitor as Risk Assessment Methods for Heat Stress in Agricultural Settings in Eastern North Carolina

Danielle Dillane and Jo Anne G. Balanay

9. The OSHA-NIOSH Heat Safety Tool app was found to have the highest reliability in correctly assessing occupational heat stress in:

10. The reliability of the OSHA-NIOSH Heat Safety Tool app in assessing occupational stress remains high even with increasing workload. True or False?


Dylan A. Stauffer, Daniel A. Autenrieth, Julie F. Hart and Stella Capoccia



Estimated Dermal Exposure to Nebulized Pharmaceuticals for a Simulated Home Healthcare Worker Scenario

Simileoluwa Ishua, John F. Reichard, Andrew Maier, Mamadou Niang, Michael Yermakov, and Sergey A. Grinshpun

13. Dermal deposition in home healthcare workers decreases as the ____________ increases.

14. When a home healthcare worker (HHCW) is in close proximity with the patient during nebulizer treatment, the patient’s mean inspiratory flow rate has an effect on the HHCW’s dermal deposition. True or False?

Deadline for answers is April 30, 2020.

Answers will be available online on May 8, 2020.