Spatial Distribution of Halogenated Flame Retardants in Mosses and Lichens of South Shetland Islands, Antarctica
Master We investigated the spatial distribution of halogenated flame retardants (HFRs), including polybrominated diphenyl ethers (PBDEs), hexabromocyclododecane (HBCD), and emerging flame retardants, dechlorane plus (DP) and related compounds (dechloranes), in the South Shetland Islands in Antarctic...
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포항공과대학교
2017
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ftponangunivst:oai:oasis.postech.ac.kr:2014.oak/93862 2023-05-15T13:40:33+02:00 Spatial Distribution of Halogenated Flame Retardants in Mosses and Lichens of South Shetland Islands, Antarctica 최윤정 일반대학원 환경공학부 2017- 2 http://postech.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002326304 https://oasis.postech.ac.kr/handle/2014.oak/93862 eng eng 포항공과대학교 OAK-2015-07725 http://postech.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002326304 https://oasis.postech.ac.kr/handle/2014.oak/93862 Thesis 2017 ftponangunivst 2022-10-20T20:56:49Z Master We investigated the spatial distribution of halogenated flame retardants (HFRs), including polybrominated diphenyl ethers (PBDEs), hexabromocyclododecane (HBCD), and emerging flame retardants, dechlorane plus (DP) and related compounds (dechloranes), in the South Shetland Islands in Antarctica using mosses and lichens as bioindicators. The sampled species included 2 mosses (Andreaea depressinervis and Sanionia uncinata) and 2 lichens (Himantormia lugubris and Usnea antarctica). PBDEs were detected in all the samples and their levels ranged between 3.18-71.5 pg/g in the mosses and 1.51-188 pg/g in the lichens. The concentration of HBCD ranged between 0.63-960 pg/g in the mosses and 0.13-21.1 pg/g in the lichens. The levels of dechloranes ranged between 2.04-2400 pg/g in the mosses and 1.04-83.8 pg/g in the lichens. HFRs were detected in all samples from the South Shetland Islands, suggesting the long-range atmospheric transport (LRAT) of the HFRs. In addition, the highest HFR contamination near the King Sejong Station and the Captain Arturo Prat Base implied that the Antarctic research stations acted as local HFR sources. The HFR levels and distribution patterns of these compounds at the Narebski Point and in the wet lowlands suggested that penguin colonies and melting ice water might be secondary HFR sources in Antarctica. The HFR levels differed by plant species, even at the same sampling site, so further research on the factors associated with HFR accumulation is necessary. This study depicted the spatial distribution of HFR levels in the South Shetland Islands, Antarctica and identified the possible HFR sources and differences in HFR accumulation among plants, which could aid our understanding of the sources, transports, and fates of HFRs and the potential ecological effects of HFR contamination in Antarctica. Thesis Antarc* Antarctic Antarctica South Shetland Islands Usnea antarctica Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) Antarctic Captain Arturo Prat base ENVELOPE(-59.683,-59.683,-62.500,-62.500) King Sejong Station ENVELOPE(-58.783,-58.783,-62.220,-62.220) Narebski Point ENVELOPE(-58.783,-58.783,-62.242,-62.242) Prat ENVELOPE(-59.467,-59.467,-62.467,-62.467) South Shetland Islands The Antarctic |
institution |
Open Polar |
collection |
Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) |
op_collection_id |
ftponangunivst |
language |
English |
description |
Master We investigated the spatial distribution of halogenated flame retardants (HFRs), including polybrominated diphenyl ethers (PBDEs), hexabromocyclododecane (HBCD), and emerging flame retardants, dechlorane plus (DP) and related compounds (dechloranes), in the South Shetland Islands in Antarctica using mosses and lichens as bioindicators. The sampled species included 2 mosses (Andreaea depressinervis and Sanionia uncinata) and 2 lichens (Himantormia lugubris and Usnea antarctica). PBDEs were detected in all the samples and their levels ranged between 3.18-71.5 pg/g in the mosses and 1.51-188 pg/g in the lichens. The concentration of HBCD ranged between 0.63-960 pg/g in the mosses and 0.13-21.1 pg/g in the lichens. The levels of dechloranes ranged between 2.04-2400 pg/g in the mosses and 1.04-83.8 pg/g in the lichens. HFRs were detected in all samples from the South Shetland Islands, suggesting the long-range atmospheric transport (LRAT) of the HFRs. In addition, the highest HFR contamination near the King Sejong Station and the Captain Arturo Prat Base implied that the Antarctic research stations acted as local HFR sources. The HFR levels and distribution patterns of these compounds at the Narebski Point and in the wet lowlands suggested that penguin colonies and melting ice water might be secondary HFR sources in Antarctica. The HFR levels differed by plant species, even at the same sampling site, so further research on the factors associated with HFR accumulation is necessary. This study depicted the spatial distribution of HFR levels in the South Shetland Islands, Antarctica and identified the possible HFR sources and differences in HFR accumulation among plants, which could aid our understanding of the sources, transports, and fates of HFRs and the potential ecological effects of HFR contamination in Antarctica. |
author2 |
일반대학원 환경공학부 |
format |
Thesis |
author |
최윤정 |
spellingShingle |
최윤정 Spatial Distribution of Halogenated Flame Retardants in Mosses and Lichens of South Shetland Islands, Antarctica |
author_facet |
최윤정 |
author_sort |
최윤정 |
title |
Spatial Distribution of Halogenated Flame Retardants in Mosses and Lichens of South Shetland Islands, Antarctica |
title_short |
Spatial Distribution of Halogenated Flame Retardants in Mosses and Lichens of South Shetland Islands, Antarctica |
title_full |
Spatial Distribution of Halogenated Flame Retardants in Mosses and Lichens of South Shetland Islands, Antarctica |
title_fullStr |
Spatial Distribution of Halogenated Flame Retardants in Mosses and Lichens of South Shetland Islands, Antarctica |
title_full_unstemmed |
Spatial Distribution of Halogenated Flame Retardants in Mosses and Lichens of South Shetland Islands, Antarctica |
title_sort |
spatial distribution of halogenated flame retardants in mosses and lichens of south shetland islands, antarctica |
publisher |
포항공과대학교 |
publishDate |
2017 |
url |
http://postech.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002326304 https://oasis.postech.ac.kr/handle/2014.oak/93862 |
long_lat |
ENVELOPE(-59.683,-59.683,-62.500,-62.500) ENVELOPE(-58.783,-58.783,-62.220,-62.220) ENVELOPE(-58.783,-58.783,-62.242,-62.242) ENVELOPE(-59.467,-59.467,-62.467,-62.467) |
geographic |
Antarctic Captain Arturo Prat base King Sejong Station Narebski Point Prat South Shetland Islands The Antarctic |
geographic_facet |
Antarctic Captain Arturo Prat base King Sejong Station Narebski Point Prat South Shetland Islands The Antarctic |
genre |
Antarc* Antarctic Antarctica South Shetland Islands Usnea antarctica |
genre_facet |
Antarc* Antarctic Antarctica South Shetland Islands Usnea antarctica |
op_relation |
OAK-2015-07725 http://postech.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002326304 https://oasis.postech.ac.kr/handle/2014.oak/93862 |
_version_ |
1766136943300575232 |