Question

Q4. A large, poorly controlled copper smelter has a stack 150 m high and a plume rise of 75 m. It is currently emitting 1000 g/s of SO2. Estimate the ground-level concentration of SO2 from this source at a distance 5 km directly downwind when the wind speed is 3 m/s and the stability class is C. (16 marks) Oy, Lateral dispersion coefficient (m) 10 AA CA 102 2 5 5 105 103 2 5 104 2 Distance from source (m) Vertical dispersion coefficient (m) 102 2 5 5 105 103 2 5 104 2 Distance from source (m)

Answer 1

Given Stack height = 150m pleame rise 15m "Effective stack weight (t) = (150 +75) 2 225m stability chems c wind speed (u), 3 m/s Flow (&)2 tooo gols. for source distance de 5000 m or 5km Tyz 495 Ozo 250 Concentration of so, will be 250 Rx 3x495x2501- 5,727 104 g / m² 572 g/m?)