Categories
Industrial Hygiene

“Evaluation of Employee Exposures to Methyl n-Amyl Ketone Using NIOSH Method 2553: A Comparison to OSHA PEL and ACGIH TLV”

You are asked to evaluate employees’ exposures to methyl n-amyl ketone
during a painting operation using NIOSH Method 2553 for the sampling.
You can access the method by clicking the link below:
National Institute for Occupational Safety and Health. (2003). Ketones II: Method 2553. In P. M. Eiler & M. E. Cassinelli (Eds.), NIOSH manual of analytical methods (4th ed.). Centers for Disease Control and Prevention. http://www.cdc.gov/niosh/docs/2003-154/pdfs/2553.pdf
Please answer the following questions:
Your pre-sampling and post-sampling pump calibration using a primary standard are both 0.05 L/min. You collect a personal sample on an employee working in the operation. The sample is collected for 460 minutes. Calculate the sample volume.
The laboratory reports that the front section of the sample contains 4,500 µg of methyl n-amyl ketone and the back section contains 100 µg of methyl n-amyl ketone. Neither the front nor back sections of the field blank you supplied contain any detectable levels of methyl
n-amyl ketone. Calculate the concentration of the sample in µg/L and mg/m³. Convert the result to ppm (MW for methyl n-amyl ketone =
114.2). Note: Use the ideal gas constant of 24.45.
You then reference OSHA’s Table Z-1 and find that the 8-hour TWA PEL for methyl n-amyl ketone is 100 ppm. You also look up the ACGIH TLV for methyl n-amyl ketone and find that the TLV is 50 ppm as an 8-hour TWA exposure. Discuss how the results of the personal sample you collected compare to the OSHA PEL and the ACGIH TLV.
Discuss whether you would recommend comparing the results of your sampling to the OSHA PEL or the ACGIH TLV. Include your rationale for
the choice.
Show all your work for the calculations for questions 1 and 2. Your answers for questions 3 and 4 should be at least 70 words in length. Cite the NIOSH document using APA Style

Categories
Industrial Hygiene

Title: The Impact of the OSH Act on Industrial Hygiene and Risk Assessment in the Workplace 1. The Occupational Safety and Health (OSH) Act of 1970 was a landmark legislation that significantly changed the way industrial hygienists (

Answer the following questions based on what you have learned in this course. Each response must be at least 200 words
in length. You may use the textbook as a reference, and you may also use any other resources as necessary. Cite and
reference any resources used in APA Style.
1. Explain how the passage of the OSH Act in 1970 changed the way industrial hygienists (IHs) evaluated health hazards
at facilities covered by the Act. 
2. List two OSHA regulations that you believe are the most important for an IH when reducing the risk of health hazards
in a workplace. Explain your reasoning for choosing the regulations. 
3. List at least three forms of toxicology data that an IH can use to perform a risk assessment for an occupational
chemical exposure. Explain how the three types of data can be used by an IH. 
4. Discuss how you would manage initial and on-going industrial hygiene sampling at a facility if you did not have a fulltime IH on staff. How would you incorporate the IH program into an existing safety and health management system?  

Categories
Industrial Hygiene

“Implementing Ventilation and Engineering Controls for Workplace Safety: A Case Study at Acme Automotive Parts”

Unit VII Scholarly Activity
This assignment will consist of two parts. Both parts will
be compiled into the same document for submission.
Part I
Thus far at Acme Automotive Parts (AAP), you have determined
that controls are required in the paint booths, at the hand[1]welding
stations, and on the machining lines. You have also determined that you cannot
substitute any alternate chemicals in these areas because of requirements from
your clients. You decide to use general dilution ventilation for the machining lines
and local exhaust ventilation systems for the paint booths and the hand-welding
stations. Complete the following tasks. For the general dilution ventilation
used in the machining lines:
Discuss why you believe a general ventilation system is
appropriate for this operation.
State where you would place the fans associated with the
ventilation system.
Explain how you would test the effectiveness of the
ventilation system.
For the local exhaust ventilation systems:
Describe the local exhaust ventilations (LEVs) you would
use for each area (paint booths and hand-welding stations).
Choose a hood type for each of the two LEVs.
Calculate the flow rate that would be required if you
placed the LEV for the welding operation 24 in. from the weld and desired a
capture velocity of 100 ft per minute (ft/min) given W=12 in. and L=24 in. for
any of the three hood types.
Discuss any barriers you might face in implementing the
use of the LEVs for these two operations.
Part II
You also determined that engineering controls are needed for
the hydraulic press area, as well as controls for noise exposure.
Discuss some types of engineering controls that might be
implemented for the hydraulic press area.
Describe the information you might require prior to
designing engineering controls for the hydraulic press area.
Explain how you would evaluate the effectiveness of the
engineering controls for this area.
Your assignment must be at least two pages in length, not
counting the title or reference pages. Your assignment must use at least two
references. One must be gathered from the CSU Online Library, and the other may
be your textbook. All citations and in-text citations must be formatted
according to APA Style.

Categories
Industrial Hygiene

Title: Chemical Hazards and Occupational Exposure Limits: A Risk Assessment Analysis

For each of the chemical hazards in the table, complete the following:
1. Calculate the exposure concentration in mg/m3
for the aerosols. 
2.  Calculate the exposure in parts per million (ppm) for the vapors.
3.  Discuss where you think errors might have been introduced into the results.
4. Compare your calculated exposures to one of the occupational exposure limits (OELs) in the table below. 
5. Do any of the calculated exposures exceed the OEL you chose? 
6. Discuss why you chose the OELs you used. 
7. Provide your opinion as to whether the risk associated with each exposure is an acceptable level of risk.   
Convert the results from dBA to percent. Make sure you show all your work for calculations. Which of the results exceeds the OSHA PEL?
Which of the results exceeds the OSHA action level? 
Provide your opinion as to whether the risk associated with each exposure is an acceptable level of risk. 
Your assignment must be at least three pages in length, not counting the title or reference pages. Your assignment must
use at least two references. One must be gathered from the CSU Online Library; the other may be your textbook. All
references and in-text citations must be formatted according to APA Style.