Class Exercise # 1 - SolutionEstimation of Intake: Adult Ingestion of Water

CW(mg/l) x IR(l/d) x EF(d/yr) x ED(yr)

Intake =

BW(kg) x AT(yr x d/yr)

0.05 mg/l x 2 l/d x 350 d/yr x 30 yr

Benzene =

70 kg x 70 yr x 365 d/yr

= 5.87 x 10-4 mg/kg-day

0.5 mg/l x 2 l/d x 350 d/yr x 30 yr

Toluene =

70 kg x 30 yr x 365 d/yr

= 1.37 x 10-2 mg/kg-day

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