What is the steady-state concentration of radon in the house

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Consider a house into which radon is emitted through cracks in the base-ment. The total volume of the house is 650 m³ (assume that it is well mixed throughout). The radon source emits 250 pCi s^-1 (pCi, or picoCuries, is a unit proportional to the amount of radon gas, and indicates the amount of radioactivity of the gas). Air inflow and outflow can be modeled as a flow of clean air into the house of 722 m³ h^-1 , and an equal air flow out. Radon can be considered to be conservative in this problem.

(a) What is the retention time of the house?

(b) What is the steady-state concentration of radon in the house? Express your answer in units of pCi/L.

Reference no: EM131253354

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