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Sediment profile characterisation at contaminated and reference locations in the Windmill Islands, East Antarctica
journal contribution
posted on 2023-05-17, 04:25 authored by Palmer, AS, Snape, I, Ashley TownsendAshley Townsend, Stark, JS, Samson, C, Riddle, MJSediment profiles for pH, Eh, 28 elements, water and organic content are presented here for human impacted and reference locations in the Windmill Islands, East Antarctica. Variations in element concentrations are observed with increasing depth, especially at Brown Bay where the impact of past human activities is most pronounced in the top 10 cm. Spatial differences were observed between sediment profiles at reference and impacted locations and were largely explained by Pb variability in the top 5 cm. Median element concentrations from surface, middle and bottom regions of the sediment profile were compared to composite sample medians (no depth stratigraphy) for 11 elements at O’Brien Bay (reference) and Brown Bay (impacted). Pronounced differences were observed for Brown Bay, particularly surface and middle sections, implying that composite samples dilute the near surface anthropogenic signal by mixing with deeper uncontaminated sediment
History
Publication title
Marine Pollution BulletinVolume
60Issue
9Pagination
1541-1549ISSN
0025-326XDepartment/School
School of Natural SciencesPublisher
Pergamon-Elsevier Science LtdPlace of publication
The Boulevard, Langford Lane, Kidlington, Oxford, England, Ox5 1GbRights statement
The definitive version is available at http://www.sciencedirect.comRepository Status
- Restricted