air flow and pollution modeling

1. Sulfur dioxide is being emitted in a rural area at a rate of 0.90kg/s from a stack with an effective height of 220m. The average wind speed at stack height is 4.8m/s and the stability category is B. Determine the short-time period, downwind, centerline concentration in micrograms per cubic meter at ground-level distances from the stack of (a) 0.6, (b) 0.8, (c) 1.0, (d) 1.2, (e) 1.6, (f) 2.0,(g)3.0, and (h) 4.0km. Plot C versus the logarithm of the distance. 2. What is the expected short-time period ground-level concentration at (a) 150m and (b) 250m away from the downwind center line for the conditions of Problem 1 for cases (a) through (h)? 3. The concentration of hydrogen sulfide " H2S" is 55ppb at a location 150m downwind from an abandoned oil well. What is the rate of H2S emission from the well if the winds are 2.7m/s on a sunny June afternoon, in grams per second? Assume ground-level emission and rural conditions. 1. Sulfur dioxide is being emitted in a rural area at a rate of 0.90kg/s from a stack with an effective height of 220m. The average wind speed at stack height is 4.8m/s and the stability category is B. Determine the short-time period, downwind, centerline concentration in micrograms per cubic meter at ground-level distances from the stack of (a) 0.6, (b) 0.8, (c) 1.0, (d) 1.2, (e) 1.6, (f) 2.0,(g)3.0, and (h) 4.0km. Plot C versus the logarithm of the distance. 2. What is the expected short-time period ground-level concentration at (a) 150m and (b) 250m away from the downwind center line for the conditions of Problem 1 for cases (a) through (h)? 3. The concentration of hydrogen sulfide " H2S" is 55ppb at a location 150m downwind from an abandoned oil well. What is the rate of H2S emission from the well if the winds are 2.7m/s on a sunny June afternoon, in grams per second? Assume ground-level emission and rural conditions