Question: 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

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 MonitoringWorker 1Worker 2Worker 33 hours80.5dBA98.5dBA92.5dBA2 hours81.0dBA86.5dBA85.0dBA2 hours82.0dBA84.5dBA83.5dBA1 hour95.0dBA83.5dBA80.0 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 exceedsOSHA'spermissible 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.

I need to know how to do these calculations.

Three workers (8-hour work shift) were monitored for work in different

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