Relationship between waste discharge amount and length of pollution zone of the offshore area in the tidal bay

A hydrodynamic water quality model of the Haizhou Bay was established using the three-dimensional model with variable boundaries(ECOM3D)developed by Princeton University.The computation results can characterize the temporal and spatial distributions of the tidal current field of M2tide(major lunar semidiurnal tide)and pollutant transportation field in the offshore area of Haizhou Bay.On the basis,the relationship between the discharge amount of CODCrand length of pollution zone was developed,which can provide the scientific basis for the environmental administration to perform water quality management and pollution control of total discharge in the tidal bay area.