Humans breathe about 500ml of air per breath and take about 12 breaths per minute during normal activities. If a person is exposed to an atmosphere containing benzene at a concentration of 10ppm (by volume), how many grams of benzene will be deposited in the lungs during an 8-hour shift if all the benzene that enters remains in the lungs? How many drops of liquid is this? A drop of liquid contains about 0.05cm3. The specific gravity of benzene is 0.879. If you were the worker, would this be acceptable