Graph II · software · atmospheric pollution
DISPER: 16 air quality management 17 air quality guidelines 18 outdoor air pollution 19 air pollution cause 20 environmental science 21 environmental monitoring 22 environmental impact assessment 23 indoor air quality 24 environmental assesment 25 air monitoring 26 modelling emissions 27 software · pollution 28 environmental engineering 29 atmospheric pollution 30 air pollution 31 environmental maps
XZ-Planes (perpendicular to ground surface):
In such a case, the program window is a XZ-plane (perpendicular to the ground surface). A pollutant point source (stack) 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 (micrograms per cubic meter, ug/m3). Point the mouse where you want in the program window and the concentration value will be shown in the text box. The pollutant concentrations will be calculated in a perpendicular plane to the ground surface (XZ-Plane). The plane height will be determined by the user (yr).
All the points of the XZ-Plane will be to a yr height. The yr value is chosen by the user before the calculation. We will be able to make many calculations considering different plane heights. The different plane heights will be determined by the user (yr values). In this way, the physical form of the pollutant plume can be studied.
Both XY-Calculation and XZ-Calculation have been used in our simulation. In this way, the physical form of the pollutant plume can be obtained. Calculation in both XY-plane (parallel to ground surface) and XZ-plane (perpendicular to ground surface). The fucshia squares represent three point sources (stacks). The red colour represents high pollutant concentrations. Pollution map of Nitrogen oxides (NOx) produced by en industrial stack. The wind angle is 0 degrees (N), the wind velocity is 5 m/s and the pollutant flow rate is 1g/s. The fucshia squares represent the point sources (position of the stacks). We have a three-dimensional image of the pollutant plume with these two computer screens.
Pollution map produced by continuous discharge in this region. Top: the orange horizontal line indicates us the position of the XZ-Plane. Bottom: The fucshia line represents a point source (stack). The red colour represents high pollutant concentrations.
Atmospheric pollution: The system of simulation of processes of dispersion offers to the beginner and the expert programmer, a quick and practical system to evaluate the indoor air pollution in the air.