Using the information from question 1, What would be the concentration (in ppm) in the garage after 24 hours if there were no air circulation in the garage? What hazards are present?

Question 1 information: Volume of gasoline in can = 5 gallons = 18.93 L Density of gasoline = 0.73 g/mL Mass of gasoline in can = 18.93 L x 0.73 g/mL = 13.81 kg Mass of gasoline evaporated per day = 0.10 x 13.81 kg = 1.38 kg Concentration = (1.38 kg) / (2 cfm x 0.0283 m^3/min x 24 hours x 1.2 kg/m^3) = 100 ppm The concentration of gasoline vapors in the garage is below the TLV of 300 ppm. However, it is still above the lower explosive limit (LEL) of 1.4%, which means a potential fire hazard is present in the garage.