Sources and transport of As, Cu, Cd and Pb in the environmental compartments of Deception Island, Antarctica.

Abstract:

:Sources and transport processes of As, Cu, Cd and Pb were studied in different environmental compartments of Deception Island, an active volcano in the South Shetland Islands, Antarctica. Element concentrations in fresh water samples are consistent with the lowest values reported elsewhere in Antarctica. Interestingly, higher concentration values of As were found in samples collected in or near spring water courses and its transport may be related with processes of lixiviation in underground waters. While in saline waters Cu and Pb had important punctual sources, concentration values for Cd were consistently high pointing to the existence of a natural and diffuse source possibly related with the hydrothermal activity. The high Si/Al ratio, low carbon content, and a non-significant anthropogenic heavy metal input may explain the surprisingly homogeneous heavy metal content found in sediment samples.

journal_name

Mar Pollut Bull

authors

Mão de Ferro A,Mota AM,Canário J

doi

10.1016/j.marpolbul.2013.08.037

subject

Has Abstract

pub_date

2013-12-15 00:00:00

pages

341-8

issue

1-2

eissn

0025-326X

issn

1879-3363

pii

S0025-326X(13)00530-4

journal_volume

77

pub_type

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