regulatory purposes in flat terrain. In this paper, the application of an advanced Gaussian
plume modeling system, AERMOD, has been investigated over complex terrain setting
through a field tracer test conducted in April 2018 near Islamabad, Pakistan. The model was
validated through short term (2 h) release from a point elevated non buoyant source of SF 6.
The hourly averaged concentrations were measured at 47 discrete sampling points. The …