4) In one day, an employee was exposed to: 75 dB for 4.8 hrs; 87 dB for 1.2 hrs; 93 dB for 25 minutes; and 91 dB for 45 minutes a) What was the TWA sound pressure level experienced? b) What was dose received by the employee? Evaluate using ACGIH guidelines. (Assume 0 exposure for any portion of the shift without documented measurements) c) What is the equivalent ACGIH TWA exposure for the employee above?
4) In one day, an employee was exposed to: 75 dB for 4.8 hrs; 87 dB for 1.2 hrs; 93 dB for 25 minutes; and 91 dB for 45 minutes a) What was the TWA sound pressure level experienced? b) What was dose received by the employee? Evaluate using ACGIH guidelines. (Assume 0 exposure for any portion of the shift without documented measurements) c) What is the equivalent ACGIH TWA exposure for the employee above?
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Transcribed Image Text:4) In one day, an employee was exposed to: 75 dB for 4.8 hrs; 87 dB for 1.2 hrs; 93 dB for 25 minutes;
and 91 dB for 45 minutes
a) What was the TWA sound pressure level experienced?
b) What was dose received by the employee? Evaluate using ACGIH guidelines.
(Assume 0 exposure for any portion of the shift without documented measurements)
c) What is the equivalent ACGIH TWA exposure for the employee above?
