Question: From the air sampled in preceding problem, 3.2 ng toluene (Mw = 92.2) were collected. What is the ambient toluene concentration in ng/L and ppbv?

From the air sampled in preceding problem, 3.2 ng toluene (Mw = 92.2) were collected. What is the ambient toluene concentration in ng/L and ppbv?

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