Atmospheric Dispersion Equation Formulas Calculator
Air Pollution Control - Stacks
Solving for plume contaminant concentration at ground level.

Inputs:
Conversions:
| pollution rate emission rate(Q) | = | 0 | | = | 0 | gram/second |
| average wind speed (u) | = | 0 | | = | 0 | meter/second |
| y direction plume standard deviation (σy) | = | 0 | | = | 0 | meter |
| z direction plume standard deviation (σz) | = | 0 | | = | 0 | meter |
| y position (y) | = | 0 | | = | 0 | meter |
| effective stach height (H) | = | 0 | | = | 0 | meter |
Solution:
| plume contaminant concentration at ground level (C) | = | HAS NOT BEEN CALCULATED | |
Other Units:
| C |
= |
downwind concentration |
| Q |
= |
pollution source emission rate |
| u |
= |
average wind speed |
| σy |
= |
y direction plume standard deviation |
| σz |
= |
z direction plume standard deviation |
| x |
= |
position in the x direction or downwind direction |
| y |
= |
position in the y direction |
| z |
= |
position in the z direction |
| H |
= |
effective stack height |
References - Books:
1) P. Aarne Vesilind, J. Jeffrey Peirce and Ruth F. Weiner. 1994. Environmental Engineering. Butterworth Heinemann. 3rd ed.