Thank you so much. Great work. I received full credit for my portion of this group assignment. Please continue to keep up the great work and help me as much as possible.
A worker uses Chemical X all day to perform Tasks A, B and C. An industrial hygienist performs personal sampling for each task during one 8-hour work shift and obtains the following data:
Task A took 3 hrs and had a concentration of 40 mg/m3
Task B took 4 hrs and had a concentration of 25 mg/m3
Task C took 1 hr and had a concentration of 70 mg/m3
What was this worker’s 8-hour time weighted average exposure to chemical X? Please show work
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