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Advanced Concepts in Environmental Safety

Essay Instructions:

The theme or setting for each project:

You are employed by Be Safe Consulting, Inc. (BSCI), as an entry level safety consultant. You report directly to Bob Sanders, the supervising Certified Safety Professional (CSP). For the last two months you have been assigned to conduct a comprehensive safety evaluation for Acme Manufacturing Co. Based on the observations, calculations, and recommendations in Unit II through Unit VIII prepare a Comprehensive Report to Bob Sanders, who will, in turn, use this information to prepare a final report to Acme Manufacturing Co. Board of Directors. While the Board of Directors may be looking for detailed business impacts, Bob Sanders is looking for a detail of potential employee hazard exposures and your recommendation rationale (calculations, observations, and/or regulation).

Ventilation Report

 

You are employed by Be Safe Consulting, Inc. (BSCI) as an entry level safety consultant. You report directly to Bob Sanders, the supervising Certified Safety Professional (CSP). BSCI has been contracted by Acme Manufacturing Co. to conduct a study to determine employee exposures to various particulates and gases. In addition, your company has been contracted to determine if the current ventilation systems that are in place are adequate to protect employees from an over exposure to these chemicals. After conducting a field assessment, prepare a written report that Bob Sanders can utilize to prepare a final comprehensive report for the Board of Directors. During your field investigation, you find the following field observations:

Welding Room

 

The company has six welding booths, or areas that are partitioned only for the use of welding curtains. The booth is open to mixing in the front and top. The company is worried about the welder's exposure to iron oxide (PEL 10 mg/m³). For a valid sample, you must have a minimum of six hours of sampling (The remaining two hours of the workday is considered to be equal to or less than the sampled exposure. As a result of your air sampling over an eight-hour time period (i.e., the work schedule), you receive the following analytical report:


Name



Location



Conc. 1



Time 1



Conc. 2



Time 2



Conc. 3



Time 3



Anne Welding



Booth #1



4.3 mg/m³



150 min.



3.7 mg/m³



150 min



2.2 mg/m³



240 min



Frank Worldly



Booth #2



2.1 mg/m³



180 min



2.8 mg/m³



120 min



3.1 mg/m³



240 min



Jim Young



Booth #3



1.7 mg/m³



205 min



1.25 mg/m³



125 min



1.03 mg/m³



150 min



Betty Johnson



Booth #4



12.8 mg/m³



165 min



11.2 mg/m³



72 min



9.8 mg/m³



123 min



Jack Jones



Booth #5



7.8 mg/m³



190 min



14.2 mg/m³



149 min



8.8 mg/m³



140 min



Joey Apperton



Booth #6



3.9 mg/m³



155 min



4.6 mg/m³



90 min



2.1 mg/m³



46 min


Based on this information, determine the employee's actual exposure to iron oxide, whether the samples were valid, and if not, why? Show your work either in the report or as an appendix.

During further evaluations of the welding booths, you determine that each booth utilizes a local exhaust system to remove the iron oxide and other contaminants prior to mixing with the breathing air. You take the following measurements:


Location



Air Velocity (fpm)



Work distance from exhaust opening (in inches)



Duct Diameter (in inches)



Flow Rate (cfm)



Booth #1



683



18



8



Unknown



Booth #2



Unknown



16



8



12,375



Booth #3



710



16



12



Unknown



Booth #4



184



26



8



Unknown



Booth #5



Unknown



22



8



9721



Booth #6



Unknown



18



12



11421


After taking the air samples for employee exposures to iron oxide, then measuring and calculating the performance of the local exhaust ventilation (paying particular attention to the specifics), what recommendations would you make to reduce the employee's overexposure, if any, to the ventilation systems?

Hazardous Materials Storage Area

 

As part of your assessment, you have been asked to evaluate and determine if the hazardous materials storage area has adequate ventilation. In addition to the federal requirements, Acme's insurance carrier requires that they have a minimum of 12 air changes per hour. In your evaluation, you collect the following information:


Area Width (ft.)



Area Length (ft.)



Area Height (ft.)



Ventilation Supply #1 (volume-cfm)



Ventilation Supply #2 (volume-cfm)



22



30



14



874



993


Determine if the current hazardous materials storage area is adequate and meets the requirements of Acme's insurance carrier. What recommendations would you make to correct the discrepancies, if any?

Foundry Room

 

Acme has a foundry room, which is nearing the point of being outdated in terms of engineering controls. For example, one employee stands near an operation that has a canopy hood exhaust and routinely puts his face in the flow of the hood, causing him to inhale particulates and gases that are directly being drawn into the hood. Part of your evaluation is to make a recommendation for a new type of exhaust system. Which one would you recommend, and why?

Respond to the details in each section and format your report in APA style. Include at least each of the following in your report for this unit:

  • Introduction-briefly describe why the studies were performed (why you started the study).

  • Report details-briefly discuss the details of the scenario (what you found from the study).

  • Conclusions and recommendations-briefly describe your recommendations based on your findings (what you recommend resolving any deficiencies).

  • Appendix-Measurements and calculations (show your work).

  • At least one page (double-spaced) in length (not including the reference appendices).

Prepare your report in a word-processing application (i.e., Word) using APA formatting for all references and in-text citations.

Essay Sample Content Preview:

OSH- 4308-Advanced Concepts in Environmental Safety
Student’s Name:
Institution Affiliation:
Advanced Concepts in Environmental Safety
The study was conducted to obtain a hazard evaluation report for different parts of the company where employees were exposed to welding fumes and other hazardous substances. The assessment will serve a prompt for reviewing major safety procedures and processes. One of the primary objectives is to determine whether or not sufficient compliance and safety levels are being maintained, identify the areas that need improving, and develop an action plan to address them.
Acme Manufacturing’s welding room houses six welding booths. TWA (time-weighted average) exposure is the average concentration of substances during an ordinary the eight- to the ten-hour workday. Several have recommended short-period exposure limits intended to complement the TWA where there are identified toxic effects from high exposures. OSHA’s legal permissible exposure limit for iron oxide fume is 10 mg/m3 averaged for an 8-hour work shift.
According to OSHA's asbestos requirements and standards for air sampling to evaluate exposures against the PRLs, sampling time ought to be as close to the possible work shift, not exceeding 8 hours. Also, a minimum of six hours of sampling is required for the samples to be valid.
The sampling time for Booth 1
21/2 hours +21/2 hours + 4 hours = 9 hours
The sampling time for Booth 2
3 hours + 2 hours + 4 hours = 9 hours
The sampling time for Booth 3
3 hrs 25 minutes+ 2 hours 5 minutes + 21/2 hours = 8 hours
The sampling time for Booth 4
23/4 hours + 1 hour 12 min + 2 hours 3 minutes = 6 hours
The sampling time for Booth 5
3 hours 10 minutes + 2 hours 29 minutes + 2 hrs 20 minutes = 7 hours 59 minutes
The sampling time for Booth 6
2 hours 35 minutes + 11/2 +46 minutes = 4 hours 51 minutes
Therefore, the samples for Booth 1, 2, and 6 were invalid.
The formula for determining the average exposure for a shift of 8 hours is:
E = (Ca Ta+Cb Tb+. . .Cn Tn)÷8
((1.7*3.4) + (1.25*2.1)+ (1.03*2.5)) ÷8
(5.78 + 2.63 + 2.58) ÷8
E = 1.37
((12.8*2.8) + (11.2*1.2)+ (9.8*2.05)) ÷8
(34.38 + 13.44 + 20.09) ÷8
E = 8.49
((7.8*3.17) + (14.2*2.48)+ (8.8*2.33)) ÷8
(24.73 + 35.22 + 20.50) ÷8
E = 10.06
The actual exposure for iron oxide ...
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