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Sediment profile characterisation at contaminated and reference locations in the Windmill Islands, East Antarctica

Citation

Palmer, AS and Snape, I and Townsend, AT and Stark, JS and Samson, C and Riddle, MJ, Sediment profile characterisation at contaminated and reference locations in the Windmill Islands, East Antarctica, Marine Pollution Bulletin , 60, (9) pp. 1541-1549. ISSN 0025-326X (2010) [Refereed Article]


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DOI: doi:10.1016/j.marpolbul.2010.04.013

Abstract

Sediment 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

Item Details

Item Type:Refereed Article
Keywords:Eh, pH, depth profile, contamination, Casey Station, Partial extraction
Research Division:Environmental Sciences
Research Group:Environmental Science and Management
Research Field:Environmental Monitoring
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Environmental Sciences
Author:Palmer, AS (Dr Anne Palmer)
Author:Townsend, AT (Associate Professor Ashley Townsend)
ID Code:66780
Year Published:2010
Web of Science® Times Cited:4
Deposited By:Central Science Laboratory
Deposited On:2011-02-11
Last Modified:2011-03-21
Downloads:0

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