“The Action Level”R

Continuing Education –
“The Action Level” ○R
QUESTIONS 8(5)
Effects of Forearm vs. Leg Submersion in Work
Tolerance Time in a Hot Environment While Wearing
Firefighter Protective Clothing
Charles P. Katica, Robert C. Pritchett, Kelly L. Pritchett, Andrew
T. Del Pozzi, Gytis Balilionis, and Tim Burnham
1. In the article, the average WBGT temperature of the
environmental chamber was .
a. ∼ 30.8 ± 0.7 ◦ C
b. ∼ 35.2 ± 0.8 ◦ C
c. ∼ 32.8 ± 0.9 ◦ C
d. ∼ 37.2 ± 0.8 ◦ C
2. In the article, the overall findings found an increase of
following lower leg submersion in cool water.
a. 18%
b. 22%
c. 24%
d. 28%
Evaluation of Sampling Methods for Measuring Exposure
to Volatile Inorganic Acids in Workplace Air.
Part 1: Sampling Hydrochloric Acid (HCL) and Nitric
Acid (HNO3) from a Test Gas Atmosphere
Alan Howe, Darren Musgrove, Dietmar Breuer, Krista Gusbeth,
Andreas Moritz, Martine Demange, Véronique Oury, Davy
Rousset, and Michel Dorotte
3. When volatile acids such as hydrochloric acid and
nitric acid are sampled using a sodium carbonateimpregnated
quartz fiber filter and a prefilter, more
reliable estimates of exposure are obtained than when
the acids are sampled using a silica gel sorbent tube.
This is because volatile acids can be present in the
air in the form of both mist and vapor and, while filter
sampling methods typically collect the inhalable fraction
of airborne particles, silica gel tubes significantly undersample
acid mist droplets. True or False?
4. Measurement of exposure to volatile acids can be
subject to both positive and negative interference, even
if a prefilter is used, potentially leading to high or low
results. True or False?
Implementation of a Quantitative Real-Time PCR
Assay for the Detection of Mycobacterium immunogenum
in Metalworking Fluids
Glenn Rhodes, Alexandra Fluri, Andrea Ruefenacht, Marco
Gerber, and Roger Pickup
5. Quantitative real-time PCR assays detect .
a. DNA
b. antigens
c. RNA
d. enzymes
6. The term “cell equivalents” (CE) is used because
obtaining accurate cell counts of mycobacteria is difficult
due to what physiological feature?
a. slow growth
b. rapid growth
c. cell clumping
d. low cell densities
Personal PM2.5 Exposure Among Wildland Firefighters
Working at Prescribed Forest Burns in Southeastern
United States
Olorunfemi Adetona, Kevin Dunn, Dan Hall, Gary Achtemeier,
Allison Stock, and Luke P. Naeher
7. and are the chief occupational
woodsmoke inhalation exposures for wildland
firefighters.
a. Volatile organic compounds; carbon dioxide
b. Carbon monoxide; respirable particulate matter
c. Nitrogen oxides; ozone
d. Lead; benzene
8. Factors that may limit the utility of using carbon monoxide
as a proxy for respirable particulate matter exposure in
smoke from forest fires for wildland firefighters include:
a. Job task/location (i.e., working fire line on foot, driving
bulldozer, flying helicopter).
b. Exposure to emissions from trucks, mules (4wheelers),
and other vehicles used for managing and
fighting forest fires.
c. Time and location of sampling (i.e., sampling firefighters
at base camp for overnight exposures vs. sampling
firefighters at fire line during working/fighting
forest fires).
d. All of the above
Ice Cooling Vest on Tolerance for Exercise Under
Uncompensable Heat Stress
Glen P. Kenny, Andrew R. Schissler, Jill Stapleton, Matthew
Piamonte, Konrad Binder, Aaron Lynn, Christopher Q. Lan,
and Stephen Hardcastle
9. Aging is associated with a progressive decrease in the
physical work capacity and reductions in the capacity to
dissipate heat. Using a cooling vest would likely reduce
the level of thermal and cardiovascular strain to the
same extent, therefore resulting in a similar exposure
time in an older worker compared with a younger worker
performing a similar intensity work protocol. True or
False?
10. An ice cooling vest worn under the protective garment
was shown to increase exercise duration by ∼12%
compared with the protective garment-only condition, yet
D78 Journal of Occupational and Environmental Hygiene August 2011