Data on transitional, coastal and marine waters are collected annually through the WISE-SoE data collection process.

The data requested on transitional, coastal and marine waters include the physical characteristics of the transitional, coastal and marine water monitoring and flux stations, proxy pressures on the upstream catchment, basin and River Basin District associated with transitional and coastal waters, chemical quality data on nutrients in seawater and hazardous substances in biota, sediment and seawater, as well as data on direct discharges and riverine input loads.

Data spource: <a href='http://www.eea.europa.eu/data-and-maps/data/waterbase-transitional-coastal-and-marine-waters-11'>http://www.eea.europa.eu/data-and-maps/data/waterbase-transitional-coastal-and-marine-waters-11</a>