A power plant emits 2.4 g of SO2 every minute. The wind recorded on the same day is 3 ms-1, and the atmospheric stability class is D for the overcast day. There is no plume rise, and the stack height...

Kindly answer this question i, ii & iii

Extracted text: A power plant emits 2.4 g of SO2 every minute. The wind recorded on the same day is 3 ms-1, and the atmospheric stability class is D for the overcast day. There is no plume rise, and the stack height is 15 m. The values of ơy and Oz are 25 m and 15 m, respectively. Estimate: (i) the concentration of SO2 500 m downwind along the plume centreline at ground level (ii) the concentration of SO2 500 m downwind and 100 m to the side at ground level (ii) the maximum ground-level concentration of SO2.