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The potential future contribution of shipping to acidification of the Baltic Sea
Univ Gothenburg, Dept Marine Sci, Box 461, S-40530 Gothenburg, Sweden.
SMHI, Sven Kallfelts Gata 15, S-42671 Vastra Frolunda, Sweden.
Univ Gothenburg, Dept Marine Sci, Box 461, S-40530 Gothenburg, Sweden.
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, LUVAL.ORCID iD: 0000-0002-5422-0012
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2018 (English)In: Ambio, ISSN 0044-7447, E-ISSN 1654-7209, Vol. 47, no 3, p. 368-378Article in journal (Refereed) Published
Abstract [en]

International regulation of the emission of acidic sulphur and nitrogen oxides from commercial shipping has focused on the risks to human health, with little attention paid to the consequences for the marine environment. The introduction of stricter regulations in northern Europe has led to substantial investment in scrubbers that absorb the sulphur oxides in a counterflow of seawater. This paper examines the consequences of smokestack and scrubber release of acidic oxides in the Baltic Sea according to a range of scenarios for the coming decades. While shipping is projected to become a major source of strong acid deposition to the Baltic Sea by 2050, the long-term effect on the pH and alkalinity is projected to be significantly smaller than estimated from previous scoping studies. A significant contribution to this difference is the efficient export of surface water acidification to the North Sea on a timescale of 15-20 years.

Place, publisher, year, edition, pages
2018. Vol. 47, no 3, p. 368-378
Keywords [en]
Acidification, Baltic Sea, Biogeochemical modelling, Shipping, Scrubbers
National Category
Oceanography, Hydrology and Water Resources
Identifiers
URN: urn:nbn:se:uu:diva-387464DOI: 10.1007/s13280-017-0950-6ISI: 000427846800010PubMedID: 28983824OAI: oai:DiVA.org:uu-387464DiVA, id: diva2:1330339
Funder
Swedish Research Council Formas, 210-2012-2120Available from: 2019-06-25 Created: 2019-06-25 Last updated: 2019-06-25Bibliographically approved

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