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Workers in a 1000 m3 processing room in a plastics factory are exposed to vinyl chloride (C2H3Cl)...

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Civil Engineering

Workers in a 1000 m3 processing room in a plasticsfactory are exposed to vinyl chloride(C2H3Cl) gas, which is emitted when theplastic pellets are heated to make the final products.

a. If the source strength of C2H3Cl is 80mg/h and the air change rate in the room is 0.21/h, what is thesteady state concentration ofC2H3Cl (in mg/m3 and in ppmv) inthe room at 25?C and 1 atm? Assume thatC2H3Cl is conservative and that theconcentration of the gas in the ambient air is zero.

b. What is the concentration (in ppmv) in the same room 6 hoursafter all the machines are turned off at the end of the day?

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