METEOROLOGY – AIR QUALITY & ATMOPHERIC CHEMITRY CALCULATOR
Dispersion Gaussian Plume
A precise tool.
What is the Dispersion Gaussian Plume & How does it work?
The Gaussian plume model is a widely used method for predicting the dispersion of pollutants from point sources in the atmosphere. It assumes that the concentration of the pollutant forms a Gaussian distribution around the source.
C(x, y, z) = frac{Q}{2pi u_0 sigma_y sigma_z} e^{-frac{(y-y_s)^2}{2sigma_y^2}} e^{-frac{(z-z_s)^2}{2sigma_z^2}}
C = Concentration at point (x, y, z)
Q = Emission rate of the pollutant
u_0 = Mean wind speed in the plume centerline direction
y_s, z_s = Coordinates of the source
sigma_y, sigma_z = Standard deviations in y and z directions
Q = Emission rate of the pollutant
u_0 = Mean wind speed in the plume centerline direction
y_s, z_s = Coordinates of the source
sigma_y, sigma_z = Standard deviations in y and z directions
This model is particularly useful for estimating air quality impacts around industrial facilities or other point sources.
Parameters
Result
β
Frequently Asked Questions
What is the Gaussian plume model used for?
The Gaussian plume model is used to predict how pollutants disperse in the atmosphere from a point source.
How does the model assume pollutant concentration is distributed?
The model assumes that the concentration of the pollutant forms a Gaussian distribution around the source.
What do Q, u_0, and Ο_y represent in the formula?
Q is the emission rate of the pollutant, u_0 is the mean wind speed in the plume centerline direction, and Ο_y is the standard deviation in the y-direction.
Can this model be used for any type of pollutant?
Yes, the Gaussian plume model can be adapted for various pollutants by adjusting parameters like emission rate and wind conditions.
What are the limitations of the Gaussian plume model?
The model assumes uniform wind speed and direction, stable atmospheric conditions, and neglects turbulence and chemical reactions.
Results are for informational purposes only and do not constitute professional advice.