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Q1. On a flat field, a park is going to be built 800 m south of a power plant. The power plant has a 60-m stack (stack 1) emitting 5 g-s-of SO2. The plume rise is determined a to be 20 m. Measurement using an anemometer on a 10 m pole shows the wind speed is 2 m/s and the wind direction is north as shown in the figure. The wind speed at the effective height of the stack is estimated to be 2.57m/s. Assuming STP condition. 1) Determine the p and stability class (1 point) 2) Calculate the ground-level SO2 concentration at the center of the park. (1.5 point) 3) Another stack (stack 2) is scheduled to be built east of stack 1. It is assumed that stack 2 will have the stack height, plume rise, emission intensity, uh, and p same as those of stack 1. To fulfill the air quality objective of ground-level SO2 concentration (i.e., 20 ppb) in the park, what is the minimum distance (d) between stack 1 and stack 2? (1.5 point) Stack 1 Stack 2 d W E Park Wind direction Q1. On a flat field, a park is going to be built 800 m south of a power plant. The power plant has a 60-m stack (stack 1) emitting 5 g-s-of SO2. The plume rise is determined a to be 20 m. Measurement using an anemometer on a 10 m pole shows the wind speed is 2 m/s and the wind direction is north as shown in the figure. The wind speed at the effective height of the stack is estimated to be 2.57m/s. Assuming STP condition. 1) Determine the p and stability class (1 point) 2) Calculate the ground-level SO2 concentration at the center of the park. (1.5 point) 3) Another stack (stack 2) is scheduled to be built east of stack 1. It is assumed that stack 2 will have the stack height, plume rise, emission intensity, uh, and p same as those of stack 1. To fulfill the air quality objective of ground-level SO2 concentration (i.e., 20 ppb) in the park, what is the minimum distance (d) between stack 1 and stack 2? (1.5 point) Stack 1 Stack 2 d W E Park Wind direction