Question

The urban air above the city of Shanghai if the mixing height above the city is 1210 m, the width of the box perpendicular to the wind is 10^5 m, the average annual wind speed is 15,400 m/hr, and the amount of sulfur dioxide discharged is 1375 × 10^6 lb/yr.

1. Is this a conservative or non-conservative system?

2. State all assumptions.

3. Sketch a diagram to represent the system.

4. Write the complete mass balance for SO2.

5. Estimate the SO2 concentration in the air leaving the city in μg/m3.

Answer 1