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Heavy metal concentrations in the fruticose lichen Usnea aurantiacoatra from King George Islands, South Shetland Islands, West Antarctica

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Title
Heavy metal concentrations in the fruticose lichen Usnea aurantiacoatra from King George Islands, South Shetland Islands, West Antarctica
Other Titles
서남극 남셰틀랜드군도 킹조지섬의 지의류 Usnea aurantiacoatra의 중금속 농도
Authors
Lim, Hyoun Soo
Han, Myung Ja
Seo, Dong Cheol
Kim, Ji Hee
Lee, Jae Il
Park, Hyun
Hur, Jae-Seoun
Cheong, Yong Hwa
Heo, Jong Soo
Yoon, Ho Il
Cho, Ju-Sik
Subject
Food Science & Technology
Keywords
Antarctica; biomonitoring; heavy metal; human impact; lichen
Issue Date
2009
Publisher
한국응용생명화학회
Citation
Lim, Hyoun Soo, et al. 2009. "Heavy metal concentrations in the fruticose lichen Usnea aurantiacoatra from King George Islands, South Shetland Islands, West Antarctica". Journal of the Korean Society for Applied Biological Chemistry, 52(5): 503-508.
Abstract
Abbreviatons The accumulation of selected heavy metals in the fruticose lichen Usnea aurantiacoatra is reported in the vicinity of the Korean research station on Barton Peninsula, King George Island, West Antarctica. To assess the impact of human activities in the study area, all samples were divided into five groups according to distance from the research station. The corresponding heavy metal levels in samples near the station were relatively higher than those collected far from the station. In particular, a very high level of Pb near the station strongly suggests the anthropogenic release of this pollutant. The relationship between trace metal content and age of the lichen was investigated, but no significant difference was found. When evaluating the vertical distribution of heavy metals in lichen thalli, most elements, particularly Pb, accumulated preferentially in the upper parts, probably due to the morphology of U. aurantiacoatra. Therefore, the vertical distribution of heavy metals in fruticose lichens should be considered to enhance data quality in biomonitoring studies.
URI
http://repository.kopri.re.kr/handle/201206/6525
DOI
http://dx.doi.org/10.3839/jksabc.2009.086
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