Centennial records of lead contamination in northern Atlantic bivalves (Arctica islandica)


Contact
Thomas.Brey [ at ] awi.de

Abstract

In the study, we establish centennial records of anthropogenic lead pollution at different locations in the North Atlantic (Iceland, USA, and Europe) by means of lead deposited in shells of the long-lived bivalve Arctica islandica. Due to local oceanographic and geological conditions we conclude that the lead concentrations in the Icelandic shell reflect natural influxes of lead into Icelandic waters. In comparison, the lead profile of the US shell is clearly driven by anthropogenic lead emissions transported from the continent to the ocean by westerly surface winds. Lead concentrations in the European North Sea shell, in contrast, are dominantly driven by local lead sources resulting in a much less conspicuous 1970s gasoline lead peak. In conclusion, the lead profiles of the three shells are driven by different influxes of lead, and yet, all support the applicability of Pb/Ca analyses of A. islandica shells to reconstruct location specific anthropogenic lead pollution.



Item Type
Article
Authors
Divisions
Programs
Peer revision
ISI/Scopus peer-reviewed
Publication Status
Published
Eprint ID
25736
DOI 10.1016/j.marpolbul.2011.11.028

Cite as
Krause-Nehring, J. , Brey, T. and Thorrold, S. R. (2012): Centennial records of lead contamination in northern Atlantic bivalves (Arctica islandica) , Marine Pollution Bulletin, 64 (2), pp. 233-240 . doi: 10.1016/j.marpolbul.2011.11.028


Download
[img]
Preview
PDF
Krause-Nehring12_MarPolBull64_1.pdf

Download (110kB) | Preview
Cite this document as:

Share


Citation

Research Platforms
N/A

Campaigns


Actions
Edit Item Edit Item