Environmental Impact Assessment in Gomishan Lagoon at Southeast Coasts of Caspian Sea

In this work, the environmental impact assessment in a restricted lagoon at south-eastern coasts of Caspian Sea is investigated. The main source of pollution is an aquaculture plant which used the lagoon water for intake and outfall its waste water. Both numerical modeling and field investigations are used to study the effects of pollution which discharge into the lagoon by an adjacent industrial plant. The numerical model is a coupled hydrodynamic and advection-dispersion model which calibrated using field measurement. It was concluded that the accumulation of pollution in lagoon will be occurred because of the long flushing time and low-order windinduced water current.