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Description

Scenario: "Recent measurement of a worker's exposure to industrial compound  X."

TWA-PEL for Compound X = 50 parts per million (ppm)

Your Sample Results:

oSample 1 (4-hour duration): 30 ppm
oSample 2 (4-hour duration): 70 ppm

Group Task :

1.Calculate the Time-Weighted Average (TWA) for the full 8-hour day.
2.Did it exceed the PEL?
3.What is the next step you recommend?
4.What type of control would you implement first?