Purpose: The derivative calculator allows for the computation of the concentration of pollutants near an exhaust stack.

Restrictions on Use: None

General Information:

1. The sliderbars on the right allow you to change the input parameters of the model.
2. The display on the bottom left shows the ground concentration downwind from the stack.
3. The display on the upper left shows either a side view or a top down view of the pollutant concentration.

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