Organochlorine Pollutants within a Polythermal Glacier in the Interior Eastern Alaska Range
To assess the presence of organochlorine pollutants (OCP) in Alaskan sub-Arctic latitudes, we analyzed ice core and meltwater samples from Jarvis Glacier, a polythermal glacier in Interior Alaska. Jarvis Glacier is receding as atmospheric warming continues throughout the region, increasing opportuni...
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ftmdpi:oai:mdpi.com:/2073-4441/10/9/1157/ 2023-08-20T03:59:15+02:00 Organochlorine Pollutants within a Polythermal Glacier in the Interior Eastern Alaska Range Kimberley R. Miner Seth Campbell Christopher Gerbi Anna Liljedahl Therese Anderson L. Brian Perkins Steven Bernsen Tiffany Gatesman Karl J. Kreutz agris 2018-08-29 application/pdf https://doi.org/10.3390/w10091157 EN eng Multidisciplinary Digital Publishing Institute Water Resources Management, Policy and Governance https://dx.doi.org/10.3390/w10091157 https://creativecommons.org/licenses/by/4.0/ Water; Volume 10; Issue 9; Pages: 1157 persistent pollutants glaciers Arctic Text 2018 ftmdpi https://doi.org/10.3390/w10091157 2023-07-31T21:42:02Z To assess the presence of organochlorine pollutants (OCP) in Alaskan sub-Arctic latitudes, we analyzed ice core and meltwater samples from Jarvis Glacier, a polythermal glacier in Interior Alaska. Jarvis Glacier is receding as atmospheric warming continues throughout the region, increasing opportunity for OCP transport both englacially and into the proglacial watershed. Across glacial meltwater and ice core samples, we utilize solid-phase extraction technology and identify the pesticides DDT, DDE and DDD, α-HCH and γ-HCH. OCP concentrations in ice core samples were highest at the 7–14 m depth (0.51 ng/L of DDT) and decreased gradually approaching the bedrock at 79 m. Meltwater concentrations from the proglacial creek slightly exceeded concentrations found in the ice core, potentially indicating aggregate OCP glacial loss, with peak OCP concentration (1.12 ng/L of DDD) taken in July and possibly associated to peak melt. Ongoing use of DDT to fight malaria in Asia and the extended atmospheric range of HCH may account for concentrations in near-surface ice of this remote glacier, correlating with use and atmospheric transport. The opportunity for bioaccumulation of OCPs, in humans or animals, of glacially distributed pollutants may increase as glacial melt continues. Text alaska range Arctic glacier glaciers ice core Alaska MDPI Open Access Publishing Arctic Jarvis Glacier ENVELOPE(-136.537,-136.537,59.449,59.449) Water 10 9 1157 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
persistent pollutants glaciers Arctic |
spellingShingle |
persistent pollutants glaciers Arctic Kimberley R. Miner Seth Campbell Christopher Gerbi Anna Liljedahl Therese Anderson L. Brian Perkins Steven Bernsen Tiffany Gatesman Karl J. Kreutz Organochlorine Pollutants within a Polythermal Glacier in the Interior Eastern Alaska Range |
topic_facet |
persistent pollutants glaciers Arctic |
description |
To assess the presence of organochlorine pollutants (OCP) in Alaskan sub-Arctic latitudes, we analyzed ice core and meltwater samples from Jarvis Glacier, a polythermal glacier in Interior Alaska. Jarvis Glacier is receding as atmospheric warming continues throughout the region, increasing opportunity for OCP transport both englacially and into the proglacial watershed. Across glacial meltwater and ice core samples, we utilize solid-phase extraction technology and identify the pesticides DDT, DDE and DDD, α-HCH and γ-HCH. OCP concentrations in ice core samples were highest at the 7–14 m depth (0.51 ng/L of DDT) and decreased gradually approaching the bedrock at 79 m. Meltwater concentrations from the proglacial creek slightly exceeded concentrations found in the ice core, potentially indicating aggregate OCP glacial loss, with peak OCP concentration (1.12 ng/L of DDD) taken in July and possibly associated to peak melt. Ongoing use of DDT to fight malaria in Asia and the extended atmospheric range of HCH may account for concentrations in near-surface ice of this remote glacier, correlating with use and atmospheric transport. The opportunity for bioaccumulation of OCPs, in humans or animals, of glacially distributed pollutants may increase as glacial melt continues. |
format |
Text |
author |
Kimberley R. Miner Seth Campbell Christopher Gerbi Anna Liljedahl Therese Anderson L. Brian Perkins Steven Bernsen Tiffany Gatesman Karl J. Kreutz |
author_facet |
Kimberley R. Miner Seth Campbell Christopher Gerbi Anna Liljedahl Therese Anderson L. Brian Perkins Steven Bernsen Tiffany Gatesman Karl J. Kreutz |
author_sort |
Kimberley R. Miner |
title |
Organochlorine Pollutants within a Polythermal Glacier in the Interior Eastern Alaska Range |
title_short |
Organochlorine Pollutants within a Polythermal Glacier in the Interior Eastern Alaska Range |
title_full |
Organochlorine Pollutants within a Polythermal Glacier in the Interior Eastern Alaska Range |
title_fullStr |
Organochlorine Pollutants within a Polythermal Glacier in the Interior Eastern Alaska Range |
title_full_unstemmed |
Organochlorine Pollutants within a Polythermal Glacier in the Interior Eastern Alaska Range |
title_sort |
organochlorine pollutants within a polythermal glacier in the interior eastern alaska range |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2018 |
url |
https://doi.org/10.3390/w10091157 |
op_coverage |
agris |
long_lat |
ENVELOPE(-136.537,-136.537,59.449,59.449) |
geographic |
Arctic Jarvis Glacier |
geographic_facet |
Arctic Jarvis Glacier |
genre |
alaska range Arctic glacier glaciers ice core Alaska |
genre_facet |
alaska range Arctic glacier glaciers ice core Alaska |
op_source |
Water; Volume 10; Issue 9; Pages: 1157 |
op_relation |
Water Resources Management, Policy and Governance https://dx.doi.org/10.3390/w10091157 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/w10091157 |
container_title |
Water |
container_volume |
10 |
container_issue |
9 |
container_start_page |
1157 |
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1774724744140029952 |