Cumulative environmental risk assessment of metals and polycyclic aromatic hydrocarbons from ship activities in ports
Artikel i vetenskaplig tidskrift, 2023

Marine environmental risk assessments rarely consider the cumulative risk from multiple contaminants and sources. Ships give rise to a range of contaminants, originating from different onboard sources, resulting in contaminant loads to the marine environment. Here, the Ship Traffic Emission Assessment Model (STEAM), in combination with the hydrodynamic and chemical fate model MAMPEC, was used to calculate loads and predicted environmental concentrations (PECs) of metals and polycyclic aromatic hydrocarbons, in four ports. PECs were compared to the predicted no effect concentrations (PNEC) to assess environmental risk from the different onboard sources, both separately and cumulatively. The results show that three out of four ports were subject to unacceptable risk. This study highlights the importance of accounting for multiple contaminant sources when assessing the marine environmental risks of shipping and challenges the suitability of the proposed new international guidelines on how to assess risk of scrubber water discharge.

Ship pollution

Cumulative risk


Polycyclic aromatic hydrocarbons

Marine environment


Anna Lunde Hermansson

Chalmers, Mekanik och maritima vetenskaper, Maritima studier

Ida-Maja Hassellöv

Chalmers, Mekanik och maritima vetenskaper, Maritima studier

J. P. Jalkanen

Finnish Meteorological Institute

Erik Ytreberg

Chalmers, Mekanik och maritima vetenskaper, Maritima studier

Marine Pollution Bulletin

0025-326X (ISSN) 1879-3363 (eISSN)

Vol. 189 114805

Evaluation, control and Mitigation of the EnviRonmental impacts of shippinG Emissions (EMERGE)

Europeiska kommissionen (EU) (EC/H2020/874990), 2020-02-01 -- 2024-01-31.





Oceanografi, hydrologi, vattenresurser






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