Question: What is the TWA is the below numbers Conc. 1 4.3 mg/m Time 1 150 min. Conc. 2 3.7 mg/m Time 2 150 min Conc.

What is the TWA is the below numbers

Conc. 14.3 mg/m

Time 1 150 min.

Conc. 2 3.7 mg/m

Time 2 150 min

Conc. 3 2.2 mg/m

Time 3 240 min

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