Investigating the Marine Protected Areas most at risk of current-driven pollution in the Gulf of Finland, the Baltic Sea, using a Lagrangian transport model

► Sections of the major fairway quantified in terms of the probability of transport of pollution to MPAs. ► The number of hits to the MPA almost linearly decreases with the distance from the fairway. ► Remote impact of current-driven pollution extends to 125-200 km in the <100 km wide gulf.