Persistent organohalogen contaminant burdens in Antarctic krill from the eastern Antarctic sector - BROKE-West Cruise
Researchers studied persistent organohalogen contaminants (POCs) in the eastern Antarctic sector. Samples were collected during January and February 2006 and originated from 12 sampling stations. They were analysed for greater than 100 organohalogen compounds including chlorinated pesticides, polych...
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Australian Antarctic Data Centre
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Online Access: | https://researchdata.edu.au/persistent-organohalogen-contaminant-west-cruise/700895 https://doi.org/10.4225/15/5aea88ec99503 https://data.aad.gov.au/metadata/records/ECA032 http://nla.gov.au/nla.party-617536 |
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ftands:oai:ands.org.au::700895 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
environment oceans ECOTOXICOLOGY EARTH SCIENCE BIOSPHERE ECOLOGICAL DYNAMICS EUPHAUSIIDS (KRILL) BIOLOGICAL CLASSIFICATION ANIMALS/INVERTEBRATES ARTHROPODS CRUSTACEANS krill POCs Southern Ocean ecosystem BROKE-West GC-MS > Gas Chromatograph/Mass Spectrometry R/V AA > R/V Aurora Australis CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR OCEAN > SOUTHERN OCEAN |
spellingShingle |
environment oceans ECOTOXICOLOGY EARTH SCIENCE BIOSPHERE ECOLOGICAL DYNAMICS EUPHAUSIIDS (KRILL) BIOLOGICAL CLASSIFICATION ANIMALS/INVERTEBRATES ARTHROPODS CRUSTACEANS krill POCs Southern Ocean ecosystem BROKE-West GC-MS > Gas Chromatograph/Mass Spectrometry R/V AA > R/V Aurora Australis CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR OCEAN > SOUTHERN OCEAN Persistent organohalogen contaminant burdens in Antarctic krill from the eastern Antarctic sector - BROKE-West Cruise |
topic_facet |
environment oceans ECOTOXICOLOGY EARTH SCIENCE BIOSPHERE ECOLOGICAL DYNAMICS EUPHAUSIIDS (KRILL) BIOLOGICAL CLASSIFICATION ANIMALS/INVERTEBRATES ARTHROPODS CRUSTACEANS krill POCs Southern Ocean ecosystem BROKE-West GC-MS > Gas Chromatograph/Mass Spectrometry R/V AA > R/V Aurora Australis CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR OCEAN > SOUTHERN OCEAN |
description |
Researchers studied persistent organohalogen contaminants (POCs) in the eastern Antarctic sector. Samples were collected during January and February 2006 and originated from 12 sampling stations. They were analysed for greater than 100 organohalogen compounds including chlorinated pesticides, polychlorinated biphenyls (PCBs), polybrominated organic compounds and polychlorinated dibenzo-p-dioxins/furans (PCDD/Fs). The suspected naturally occurring organohalogen, 2,4,6-tribromoanisole (TBA) as well as delta-HCH; o,p'- DDE; o,p'-DDD; p,p'-DDD; p,p'-DDT; penta-chlorobenzene (PeCB); HCB; heptachlor-exoepoxide; heptachlor; trans-nonachlor, mirex and toxaphene congeners Tox-26 (B8-1413), Tox-40+41 (B8-1414+ B8-1945) and Tox-50 (B8-2229) were quantified in all samples analysed whilst PCB-101, gamma-HCH, p,p'-DDE cis-nonachlor, Tox-42a (B8-806) and Tox-44 (B8-2229) were quantified in greater than or equal to 75% of samples analysed. Organochlorine pesticides dominated measured krill contaminant burdens with hexachlorobenzene (HCB) as the single most abundant compound quantified: 4.37 ng/glw (lipid weight) or 0.2 ng/gww (wet weight). HCB concentrations were comparable to those detected at this trophic level in both the Arctic and temperate northwest Atlantic, lending support to the hypothesis that HCB will approach global equilibrium at a faster rate than other POCs. Para, para'-dichlorodiphenylethene (p,p'- DDE) was detected at notable concentrations: 2.6 ng/glw 0.13 ng/gww. In contrast to the Arctic, PCBs did not feature prominently in contaminant burdens of Antarctic krill: 1.2 ng g- 1 lw and 0.05 ng/gww., dominant PCB congeners were PCB-18, PCB-28, PCB-31 and PCB- 153. The major commercial polybrominated diphenyl ether (PBDE) congeners -99 and -47 were quantified at low background levels (0.67 ng/glw , 0.03 ng/gww and 0.35 ng/glw, 0.007 ng/gww respectively) with clear concentration spikes observed at around 70 degrees E , in the vicinity of modern, active research stations. The suspected naturally occurring brominated organic compound, 2,4,6-tribromoanisole (TBA), was a ubiquitous contaminant in all samples 49 whereas the only PCDD/Fs quantifiable were trace levels of octachlorodibenzo-p-dioxin (OCDD) and 1,2,3,4,7,8/1,2,3,4,7,9-hexachlorodibenzofuran (HxCDF). This work has been incorporated in AAS project 3115 (ASAC_3115), Persistent Organic Pollutants and Emerging Contaminants of Concern; System Input From Local and Distant Contamination Sources. |
author2 |
BENGTSON NASH, SUSAN (hasPrincipalInvestigator) BENGTSON NASH, SUSAN (processor) Australian Antarctic Data Centre (publisher) |
format |
Dataset |
title |
Persistent organohalogen contaminant burdens in Antarctic krill from the eastern Antarctic sector - BROKE-West Cruise |
title_short |
Persistent organohalogen contaminant burdens in Antarctic krill from the eastern Antarctic sector - BROKE-West Cruise |
title_full |
Persistent organohalogen contaminant burdens in Antarctic krill from the eastern Antarctic sector - BROKE-West Cruise |
title_fullStr |
Persistent organohalogen contaminant burdens in Antarctic krill from the eastern Antarctic sector - BROKE-West Cruise |
title_full_unstemmed |
Persistent organohalogen contaminant burdens in Antarctic krill from the eastern Antarctic sector - BROKE-West Cruise |
title_sort |
persistent organohalogen contaminant burdens in antarctic krill from the eastern antarctic sector - broke-west cruise |
publisher |
Australian Antarctic Data Centre |
url |
https://researchdata.edu.au/persistent-organohalogen-contaminant-west-cruise/700895 https://doi.org/10.4225/15/5aea88ec99503 https://data.aad.gov.au/metadata/records/ECA032 http://nla.gov.au/nla.party-617536 |
op_coverage |
Spatial: northlimit=-59; southlimit=-69; westlimit=30; eastLimit=80; projection=WGS84 Temporal: From 2006-01-12 to 2006-02-27 |
long_lat |
ENVELOPE(30,80,-59,-69) |
geographic |
Arctic Antarctic Southern Ocean |
geographic_facet |
Arctic Antarctic Southern Ocean |
genre |
Antarc* Antarctic Antarctic Krill Antarctica Arctic aurora australis Northwest Atlantic Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctica Arctic aurora australis Northwest Atlantic Southern Ocean |
op_source |
Australian Antarctic Data Centre |
op_relation |
https://researchdata.edu.au/persistent-organohalogen-contaminant-west-cruise/700895 02fc565d-0e38-48f2-92c7-410c76ba2604 doi:10.4225/15/5aea88ec99503 ECA032 https://data.aad.gov.au/metadata/records/ECA032 http://nla.gov.au/nla.party-617536 |
op_doi |
https://doi.org/10.4225/15/5aea88ec99503 |
_version_ |
1766272956980264960 |
spelling |
ftands:oai:ands.org.au::700895 2023-05-15T14:02:38+02:00 Persistent organohalogen contaminant burdens in Antarctic krill from the eastern Antarctic sector - BROKE-West Cruise BENGTSON NASH, SUSAN (hasPrincipalInvestigator) BENGTSON NASH, SUSAN (processor) Australian Antarctic Data Centre (publisher) Spatial: northlimit=-59; southlimit=-69; westlimit=30; eastLimit=80; projection=WGS84 Temporal: From 2006-01-12 to 2006-02-27 https://researchdata.edu.au/persistent-organohalogen-contaminant-west-cruise/700895 https://doi.org/10.4225/15/5aea88ec99503 https://data.aad.gov.au/metadata/records/ECA032 http://nla.gov.au/nla.party-617536 unknown Australian Antarctic Data Centre https://researchdata.edu.au/persistent-organohalogen-contaminant-west-cruise/700895 02fc565d-0e38-48f2-92c7-410c76ba2604 doi:10.4225/15/5aea88ec99503 ECA032 https://data.aad.gov.au/metadata/records/ECA032 http://nla.gov.au/nla.party-617536 Australian Antarctic Data Centre environment oceans ECOTOXICOLOGY EARTH SCIENCE BIOSPHERE ECOLOGICAL DYNAMICS EUPHAUSIIDS (KRILL) BIOLOGICAL CLASSIFICATION ANIMALS/INVERTEBRATES ARTHROPODS CRUSTACEANS krill POCs Southern Ocean ecosystem BROKE-West GC-MS > Gas Chromatograph/Mass Spectrometry R/V AA > R/V Aurora Australis CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR OCEAN > SOUTHERN OCEAN dataset ftands https://doi.org/10.4225/15/5aea88ec99503 2020-08-03T22:20:31Z Researchers studied persistent organohalogen contaminants (POCs) in the eastern Antarctic sector. Samples were collected during January and February 2006 and originated from 12 sampling stations. They were analysed for greater than 100 organohalogen compounds including chlorinated pesticides, polychlorinated biphenyls (PCBs), polybrominated organic compounds and polychlorinated dibenzo-p-dioxins/furans (PCDD/Fs). The suspected naturally occurring organohalogen, 2,4,6-tribromoanisole (TBA) as well as delta-HCH; o,p'- DDE; o,p'-DDD; p,p'-DDD; p,p'-DDT; penta-chlorobenzene (PeCB); HCB; heptachlor-exoepoxide; heptachlor; trans-nonachlor, mirex and toxaphene congeners Tox-26 (B8-1413), Tox-40+41 (B8-1414+ B8-1945) and Tox-50 (B8-2229) were quantified in all samples analysed whilst PCB-101, gamma-HCH, p,p'-DDE cis-nonachlor, Tox-42a (B8-806) and Tox-44 (B8-2229) were quantified in greater than or equal to 75% of samples analysed. Organochlorine pesticides dominated measured krill contaminant burdens with hexachlorobenzene (HCB) as the single most abundant compound quantified: 4.37 ng/glw (lipid weight) or 0.2 ng/gww (wet weight). HCB concentrations were comparable to those detected at this trophic level in both the Arctic and temperate northwest Atlantic, lending support to the hypothesis that HCB will approach global equilibrium at a faster rate than other POCs. Para, para'-dichlorodiphenylethene (p,p'- DDE) was detected at notable concentrations: 2.6 ng/glw 0.13 ng/gww. In contrast to the Arctic, PCBs did not feature prominently in contaminant burdens of Antarctic krill: 1.2 ng g- 1 lw and 0.05 ng/gww., dominant PCB congeners were PCB-18, PCB-28, PCB-31 and PCB- 153. The major commercial polybrominated diphenyl ether (PBDE) congeners -99 and -47 were quantified at low background levels (0.67 ng/glw , 0.03 ng/gww and 0.35 ng/glw, 0.007 ng/gww respectively) with clear concentration spikes observed at around 70 degrees E , in the vicinity of modern, active research stations. The suspected naturally occurring brominated organic compound, 2,4,6-tribromoanisole (TBA), was a ubiquitous contaminant in all samples 49 whereas the only PCDD/Fs quantifiable were trace levels of octachlorodibenzo-p-dioxin (OCDD) and 1,2,3,4,7,8/1,2,3,4,7,9-hexachlorodibenzofuran (HxCDF). This work has been incorporated in AAS project 3115 (ASAC_3115), Persistent Organic Pollutants and Emerging Contaminants of Concern; System Input From Local and Distant Contamination Sources. Dataset Antarc* Antarctic Antarctic Krill Antarctica Arctic aurora australis Northwest Atlantic Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Arctic Antarctic Southern Ocean ENVELOPE(30,80,-59,-69) |