Lead/Calcium profiles in the common time window 1770-2010 of the three Arctica islandica shells
Cobertura |
MEDIAN LATITUDE: 52.892767 * MEDIAN LONGITUDE: -27.021667 * SOUTH-BOUND LATITUDE: 38.500000 * WEST-BOUND LONGITUDE: -74.000000 * NORTH-BOUND LATITUDE: 66.028000 * EAST-BOUND LONGITUDE: 7.784300 * DATE/TIME START: 2005-01-01T00:00:00 * DATE/TIME END: 2010-01-01T00:00:00 |
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Data(s) |
07/02/2012
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Resumo |
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. |
Formato |
application/zip, 3 datasets |
Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.775489 doi:10.1594/PANGAEA.775489 |
Idioma(s) |
en |
Publicador |
PANGAEA |
Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
Fonte |
Supplement to: Krause-Nehring, Jacqueline; Brey, Thomas; Thorrold, Simon R (2012): Centennial records of lead contamination in northern Atlantic bivalves (Arctica islandica). Marine Pollution Bulletin, 64(2), 233-240, doi:10.1016/j.marpolbul.2011.11.028 |
Palavras-Chave | #Age; AGE; Arctica islandica, annual average; for years with > 1 Pb/Ca measurement; Grab; GRAB; HELG; ICEL; Iceland; LA-ICP-MS Thermo Finnigan Element 2; Lead/Calcium ratio; Lead/Calcium ratio, standard deviation; Lead/Calcium ratio, standard error; off Helgoland, North Sea; Pb/Ca; Pb/Ca std dev; Pb/Ca std e; VIRG; Virginia, USA |
Tipo |
Dataset |