The map shows the distribution of main passengers transport ports in the Mediterranean Sea. Pressure on marine regions are represented by the port influence area, based also on their activity level. The dispersal of port-derived pollution was modeled as a diffusive plume based on their activity level using Eurostat data on transport of goods (thousand tonnes) and passengers (thousand passengers). Calculations were made following the same methodology developed for ESaTDOR Project (ESPON, 2013).