In such a case, the program window is a XZ-plane (perpendicular to the water surface). A pollutant point source (outfall pipeline) is represented by a small square.
In the Status bar at the bottom, we have X,Y and Z coordinate values in meters and data on our environmental system. Point the mouse where you want in the program window and the X,Y and Z values will be shown in the status bar at the bottom.
On the left bottom corner, a text box appears: the pollutant concentration value (grams per cubic meter, g/m3). Point the mouse where you want in the program window and the concentration value will be shown in the text box. Remember that 1g/m3=1mg/L.
The pollutant concentrations will be calculated in a perpendicular plane to the water surface (XZ-Plane). The plane height will be determined by the user (yr).