1. Which of the following media contains the largest amount of toluene, CeHsCH3 (show your calculations)? (a) 1 million gallons of water containing 5 ppm of toluene (b) 100 cubic

meters of soils (bulk density = 1.8 g/cu. cm) with 5 ppm of toluene (c) An empty warehouse (30 m x 15 m x 10 m) with 5 ppmV toluene in air (P = 1 atm and T20 °C).