Gaussian Equation:

downwind concentration at point (x,y,z) from a source at elevation h

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Step 1. Enter the input variables:

Q = emission rate =grams/sec

x = downwind distance =meters

y = crosswind distance =meters

z = vertical distance =meters

u = average wind speed =meters/sec

Atmospheric Stability (A-F) =

h = Effective Stack Height =meters

Step 2. Record interim values:

sigma y:

sigma z:

Step 3. Results

micrograms/cubic meter