期刊
ENVIRONMENTAL POLLUTION
卷 210, 期 -, 页码 238-245出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2015.11.045
关键词
Pollution; Marine airborne; South shetlands; Biomonitor; Lichen
资金
- (FONCyT/DNAd) project [PICTO 0091]
Several pollutants, which include metals, are present in the Antarctic atmosphere, snow, marine and terrestrial organisms. This work reports the elements incorporated by Usnea sp thalli in Potter Peninsula, 25 de Mayo (King George) Island, South Shetlands, Antarctica. Geological origin was analyzed as possible sources of elements. For this purpose, correlations were done using a geochemical tracer, principal component analysis and enrichment factors were computed. Lithophile elements from particulate matter were present in most of the sampling sites. Bromine, Se and Hg showed the highest enrichment factors suggesting other sources than the particulate matter. Mercury values found in Usnea sp were in the same range as those reported for Deception Island (South Shetlands) and remote areas from the Patagonia Andes. (C) 2015 Elsevier Ltd. All rights reserved.
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