The nutrient load from food waste generated onboard ships in the Baltic Sea
Artikel i vetenskaplig tidskrift, 2016

The combination of the sensitive characteristics of the Baltic Sea and the intense maritime traffic makes the marine environment vulnerable to anthropogenic influences. The theoretical scenario calculated in this study shows that the annually generated food waste onboard ships in traffic in the Baltic Sea contains about 182 tonnes of nitrogen and 34 tonnes of phosphorus. Today, all food waste generated onboard can be legally discharged into the marine environment at a distance of 12 NM from the nearest land. The annual load of nitrogen contained in the food waste corresponds to 52% of load of nitrogen from the ship-generated sewage. Future regulations for sewage discharge in the Baltic Sea will require significant reduction of total nitrogen and phosphorus released. The contribution of nutrients from food waste compared to sewage will therefore be relatively larger in the future, if food waste still can be legally discharged.

Shipping

Författare

Magda Wilewska-Bien

Chalmers, Sjöfart och marin teknik, Maritim miljövetenskap

Lena Granhag

Chalmers, Sjöfart och marin teknik, Maritim miljövetenskap

Karin Andersson

Chalmers, Sjöfart och marin teknik, Maritim miljövetenskap

Marine Pollution Bulletin

0025-326X (ISSN)

Vol. 105 1 359-366

Ämneskategorier

Annan naturvetenskap

DOI

10.1016/j.marpolbul.2016.03.002

PubMed

26992746

Mer information

Skapat

2017-10-07