Effects of scrubber washwater discharge on microplankton in the Baltic Sea
Artikel i vetenskaplig tidskrift, 2019

In 2020, the global cap of maximum allowable sulphur content in marine fuel will be reduced from the current 3.5% to 0.5%. Another way to reduce the sulphur emissions is to install a seawater scrubber that cleans exhausts but instead release acidic water containing nutrients and contaminants back to the marine environment. In the current study, scrubber washwater was tested on a Baltic Sea microplankton community. A significant increase in chlorophyll a, particulate organic phosphorus (POP), carbon (POC) and nitrogen (PON) were observed when the community was exposed to 10% scrubber washwater for 13 days as compared to the control. A laboratory experiment with the filamentous cyanobacteria Nodularia spumigena and the chain-forming diatom Melosira cf. arctica showed negative responses in photosynthetic activity (EC10 = 8.6% for N. spumigena) and increased primary productivity (EC10 = 5.5% for M. cf. arctica), implying species-specific responses to scrubber washwater discharge.


Erik Ytreberg

Chalmers, Mekanik och maritima vetenskaper, Maritima studier

Ida-Maja Hassellöv

Chalmers, Mekanik och maritima vetenskaper, Maritima studier

Amanda Nylund

Chalmers, Mekanik och maritima vetenskaper, Maritima studier

Mikael Hedblom

Göteborgs universitet

Adil Y. Al-Handal

Göteborgs universitet

Angela Wulff

Göteborgs universitet

Marine Pollution Bulletin

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

Vol. 145 316-324

Ekotoxikologiska effekter av Seawater Srubbing och dess koppling till havsförsurning

Formas (210-2012-1298), 2013-01-01 -- 2016-12-31.

Sjöfartens bidrag till försurning i Östersjön (SHipH)

Formas (brg8613), 2013-01-01 -- 2016-12-31.




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