There are 40 customers who are heavy smokers in a small pub. Each person smokes one cigarette every 10 minutes. Each cigarette emits 1015 particles of smoke. The smoke particles have a diameter of 0.1 ?m and a density of 0.8 g/m3.

a. What is the mass emission rate of smoke particles into the room in mg/?

b. If the room measures 5 m wide, 2.5 m high, and 8 m long, and the ventilation rate is 10 per hour, what is the steady-state smoke concentration in the room?

c. If the background concentration is 0.025 mg/, what total steadystate smoke concentration would the nonsmoking bartender be exposed to during an 8-hr shift?

d. The causality of smoke of this size has been determined for what potential health outcomes?

e. Where would these particles be deposited in the respiratory system?



What will be an ideal response?


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