The Action Level!® Quiz - Volume 14 No 10 - October 2017

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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.