Unit IV Essay
After reading the Unit IV Lesson and your assigned readings, choose three substances that were discussed. One
substance must be a gas/vapor hazard, one must be an aerosol hazard, and one must be a biological hazard.
Write a minimum of one page for each hazard you choose (a minimum of three pages total), which summarizes the
following information:
Explain whether the substance is a chemical or biological hazard, and explain how you determined that.
Explain the key chemical properties (vapor pressure, vapor density, molecular weight, relative size) as applicable, and
describe how these properties affect the different routes of exposure. Based on the chemical properties, how would you
identify which exposure route is the most important?
Analyze how the substance could enter the body through the dermal route, and discuss why the dermal route would or
would not be important.
Describe the region of the respiratory system where deposition would be expected (only for the aerosol hazard).
You should use your textbook and resources from the CSU Online Library to obtain information for this assignment. You
must use proper APA formatting for all references that you use. The title page and reference page do not count toward
meeting the required page count.
Information about accessing the grading rubric for this assignment is provided below.
Unit V Article Review
In the Health and Medical Collection database within the CSU Online Library, locate and read the following article:
Swierczynska-Machura, D., Brzeznicki, S., Nowakowska-Swirta, E., Walusiak-Skorupa, J., Wittczak, T., Dudek, W., . . .
Palczynski, C. (2015). Occupational exposure to diisocyanates in polyurethane foam factory workers. International
Journal of Occupational Medicine and Environmental Health, 28(6), 985-998.
Write a summary of the article that addresses the following variables:
Summarize the industrial hygiene sampling procedures that were used in the study to evaluate a chemical hazard.
Explain the results of each of the sampling procedures used, how those results were used to evaluate occupational
exposures, and the potential health effects of chemical hazards.
Provide your opinion as to which of the sampling procedures used in the study provided the most accurate and precise
information about the occupational exposures of the workers and potential health effects. Explain why you chose one
particular sampling procedure over the others.
You should use the textbook and resources from the CSU Online Library to obtain information for this assignment. Your
article review must be a minimum of three pages in length, not counting the title page and reference page. Use APA style
when writing the paper, making certain to include in-text citations and references.
Information about accessing the grading rubric for this assignment is provided below.
Unit VI ScholarlyActivity
In the following assignment, you will be given two different questions concerning the material covered in this unit. Each
question should be answered using a minimum of 250 words. Any resources, including your textbook, that are utilized to
answer the questions should be cited and referenced using APA formatting. A template has been provided here for you to
use to answer the questions. Enter your answers into the template, and upload the template into the assignment area within
Blackboard. The questions you will be answering are shown below (and in the template).
The Occupational Safety and Health Administration (OSHA) currently has a permissible exposure limit (PEL) for noise of 90
dBA at an 8-hour time-weighted average (TWA) exposure with an action level of 50% of that exposure. OSHA uses a 5 dB
exchange rate (doubling rate); this means that if the exposure increases from 90 dBA to 95 dBA, the allowed exposure time
decreases to one-half—from 8 hours to 4 hours.
The National Institute for Occupational Safety and Health (NIOSH) and the American Conference of Governmental Industrial
Hygienists (ACGIH) recommend using an exposure limit of 85 dBA instead of 90 dBA and also recommend using a 3 dB
exchange rate. These levels are much more protective than the levels currently used by OSHA.
Discuss the merits of each of the two methods. Provide your opinion as to which of the approaches you believe should be
used. Support your answer with at least one professional/scholarly reference.
OSHA does not currently have a regulation specifically covering ergonomic issues. OSHA has issued several guidelines for
some specific industries. Consider a workplace you are familiar with where there is a potential for repetitive motion injuries.
Discuss what methods you would use to identify tasks that would present the greatest risk for repetitive motion injuries. How
would you establish an ergonomics program to address the issues? What would be the greatest obstacles in establishing
the ergonomics program?
MOS 6301, Advanced Industrial Hygiene 3
Information about accessing the grading rubric for this assignment is provided below.
Unit VIII Research Paper
For the following research paper assignment, you have been asked to perform an evaluation of employee exposures at a
small automobile parts manufacturing facility. The manufacturing processes include two metal presses, two machining
stations, three welding stations, a small paint booth, and a shipping/receiving area. There are two employees working at
each press, one person working at each machining station, one person working at each welding station, two people working
in the paint booth, and four employees working in the shipping/receiving area.
One of the presses is a 2,000-ton press, and the other press is a 200-ton press. The 2,000-ton press is the greatest noise
source for the facility. The machining area uses a metal working fluid. The safety data sheet (SDS) for the metal working
fluid is attached here. All welding is performed on stainless steel. The painting booth uses a powder coating operation, but
the employees use xylene and methyl ethyl ketone (MEK) to clean the parts prior to the powder coating operation. At the end
of the shift, one of the employees uses 1,3 butadiene to clean the nozzles for the paint booth. The facility uses two electric
forklifts to move materials between the production area and the storage warehouse and between the warehouse and the
shipping area. All employees work an 8-hour shift.
Part 1:
Using the information on anticipation and control we studied in the textbook, identify the hazards that are present in the
facility. In your discussion, explain why you chose the hazards, and describe whether you believe the hazards to be actual
hazards or potential hazards (which require further evaluation). Describe the specific location(s) at the facility where the
hazards are located, and determine how many employees are potentially at risk in those areas.
Your response for Part 1 should be at least one page in length.
Part 2:
Using the information on evaluation that we studied in the textbook, summarize how you would measure the personal
exposures to the hazards that you identified in Part 1. Use the Occupational Safety and Health Administration (OSHA)
website (https://www.osha.gov/dts/sltc/methods/toc.html) or the National Institute for Occupational Safety and Health
(NIOSH) website (http://www.cdc.gov/niosh/docs/2003-154/default.html) to select the specific sampling and analytical
method that would work best to evaluate any chemical hazards you identified. Provide a summary of the sampling media
you would use, include the sampling flow rate, discuss how long you would sample, and explain how you would calibrate the
sampling train. Include a discussion about why you selected the specific sampling and analytical method.
Your response to Part 2 should be at least one page in length.
Part 3:
Access the attached sampling results here. For each set of results, perform the following actions:
Calculate the 8-hour time weighted average (TWA) exposure.
Compare the results to the appropriate OSHA permissible exposure limit (PEL).
Determine which results exceed an established OSHA PEL.
Write a one-page summary of the sampling results; document the exposures that exceeded an OSHA PEL, and identify
those areas that you believe will require the application of controls to reduce risk. Include your calculations, include a list of
the OSHA PELs you compared the results to, and explain how you decided that an exposure exceeded an OSHA PEL.
Part 4:
Using OSHA’s hierarchy of controls, recommend the control methods that you believe would be the most effective for
reducing the risks associated with the exposures that exceeded the OSHA PEL above. Explain how you would implement
the controls and how you would evaluate the effectiveness of the controls. Also, discuss any interim control methods you
would recommend for the facility.
This section should be at least one page in length.
Include a reference page and in-text citations for all sources you used in this project, including your textbook, using proper
APA format.
Information about accessing the grading rubric for this assignment is provided below.
APA Guidelines
The application of the APA writing style shall be practical, functional, and appropriate to each academic level, with the
primary purpose being the documentation (citation) of sources. CSU requires that students use APA style for certain papers
and projects. Students should always carefully read and follow assignment directions and review the associated grading
rubric when available. Students can find CSU’s Citation Guide by clicking here. This document includes examples and
sample papers and provides information on how to contact the CSU Success Center.
Grading Rubrics
MOS 6301, Advanced Industrial Hygiene 4
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