Calculate time-weighted average noise exposure

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Reference no: EM133198058 , Length: Word count: 2 Pages

Question 1: You have been tasked with establishing and implementing an effective hearing conservation program for a metal stamping facility. Noise monitoring shows that employees working in the press areas of the facility are exposed to 8-hour TWA noise exposures between 85.0 dBA and 89.0 dBA. Based on the requirements of 29 CFR 1910.95, summarize the requirements for an effective hearing conservation program and discuss steps to make the program as effective as possible.

Your response must be a minimum of 200 words in length.

Question 2: Three workers (8-hour work shift) were monitored for work in different areas of a facility using calibrated noise dosimeters. The results are summarized in the following table.

Time for Monitoring	Worker 1	Worker 2	Worker 3
3 hours	80.5 dBA	98.5 dBA	92.5 dBA
2 hours	81.0 dBA	86.5 dBA	85.0 dBA
2 hours	82.0 dBA	84.5 dBA	83.5 dBA
1 hour	95.0 dBA	83.5 dBA	80.0 dBA

a. Calculate the 8-hour time-weighted average (TWA) noise exposure for each of the three workers.

b. Summarize which (one) of the exposures exceeds OSHA's permissible exposure limit (PEL) and/or action level for noise.

c. Discuss what factors about the noise monitoring may have affected the accuracy of the noise measurements.

Show your work for all mathematical calculations. Please refer to Appendix A to 29 CFR 1910.95 for assistance on how to solve this problem. Your response must be a minimum of 200 words in length.

Question 3: Summarize the characteristics and abilities of sound level meters (SLMs) and noise dosimeters and how they can be used to evaluate noise exposures at a facility.

Your response must be a minimum of 200 words in length.

Reference no: EM133198058

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