Data for: Evaluating spatiotemporal patterns of arsenic, antimony, and lead deposition from legacy gold mine emissions using lake sediment records

In the absence of long-term environmental monitoring prior to and during resource development, identifying the extent of pollution is challenging but important for assessing risks to ecosystem health. Legacy pollution from Giant Mine in the Northwest Territories is a concern because while gold smelt...

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Main Authors: Jasiak, Izabela, Wolfe, Brent, Hall, Roland, Venkiteswaran, Jason
Format: Dataset
Language:unknown
Published: 2021
Subjects:
Online Access:https://search.dataone.org/view/sha256:1d11c6349cd21962e9e7d78a6a0ed47488d20ce0778a121b67d59d6470fbc513
id dataone:sha256:1d11c6349cd21962e9e7d78a6a0ed47488d20ce0778a121b67d59d6470fbc513
record_format openpolar
spelling dataone:sha256:1d11c6349cd21962e9e7d78a6a0ed47488d20ce0778a121b67d59d6470fbc513 2024-06-03T18:46:38+00:00 Data for: Evaluating spatiotemporal patterns of arsenic, antimony, and lead deposition from legacy gold mine emissions using lake sediment records Jasiak, Izabela Wolfe, Brent Hall, Roland Venkiteswaran, Jason 2021-09-09T00:00:00Z https://search.dataone.org/view/sha256:1d11c6349cd21962e9e7d78a6a0ed47488d20ce0778a121b67d59d6470fbc513 unknown Lake sediment Geochemistry Earth and Environmental Sciences Metals Legacy pollution Giant Mine Dataset 2021 dataone:urn:node:BOREALIS 2024-06-03T18:17:39Z In the absence of long-term environmental monitoring prior to and during resource development, identifying the extent of pollution is challenging but important for assessing risks to ecosystem health. Legacy pollution from Giant Mine in the Northwest Territories is a concern because while gold smelting operations ceased in the late 1990s, the fine, toxic dust arsenic trioxide dispersed into the atmosphere, potentially creating repositories in the surrounding landscape. Lake water surveys and the sampling of surficial sediment have identified a confined emissions footprint within a 30-km radius of the mine. However, these measurements may not capture the range of aerial deposition of emissions from the mine, particularly peak emissions released during the 1950s. Paleolimnological studies from far-field locations have shown evidence of arsenic enrichment coinciding with the timing of peak mine emissions during the 1950s, suggesting further research is needed to characterize stores of legacy metals derived from Giant Mine pollution.To address this need, as part of the Sub-Arctic Metal Mobility Study, temporal patterns of metals (arsenic, antimony, and lead) deposition and hydrological conditions were reconstructed from sediment cores collected from eight lakes along an 80-km transect northwest of Yellowknife, following the prevailing wind direction. Two sediment cores were collected from each lake by using a Uwitec gravity corer fitted with PVC tubes (86-mm internal diameter). These lake sediment cores provide further characterization of the Giant Mine emission footprint, and the depositional and post-depositional history of arsenic and other metals in sub-arctic lakes and their catchments. Dataset Arctic Northwest Territories Yellowknife Unknown Arctic Northwest Territories Yellowknife
institution Open Polar
collection Unknown
op_collection_id dataone:urn:node:BOREALIS
language unknown
topic Lake sediment
Geochemistry
Earth and Environmental Sciences
Metals
Legacy pollution
Giant Mine
spellingShingle Lake sediment
Geochemistry
Earth and Environmental Sciences
Metals
Legacy pollution
Giant Mine
Jasiak, Izabela
Wolfe, Brent
Hall, Roland
Venkiteswaran, Jason
Data for: Evaluating spatiotemporal patterns of arsenic, antimony, and lead deposition from legacy gold mine emissions using lake sediment records
topic_facet Lake sediment
Geochemistry
Earth and Environmental Sciences
Metals
Legacy pollution
Giant Mine
description In the absence of long-term environmental monitoring prior to and during resource development, identifying the extent of pollution is challenging but important for assessing risks to ecosystem health. Legacy pollution from Giant Mine in the Northwest Territories is a concern because while gold smelting operations ceased in the late 1990s, the fine, toxic dust arsenic trioxide dispersed into the atmosphere, potentially creating repositories in the surrounding landscape. Lake water surveys and the sampling of surficial sediment have identified a confined emissions footprint within a 30-km radius of the mine. However, these measurements may not capture the range of aerial deposition of emissions from the mine, particularly peak emissions released during the 1950s. Paleolimnological studies from far-field locations have shown evidence of arsenic enrichment coinciding with the timing of peak mine emissions during the 1950s, suggesting further research is needed to characterize stores of legacy metals derived from Giant Mine pollution.To address this need, as part of the Sub-Arctic Metal Mobility Study, temporal patterns of metals (arsenic, antimony, and lead) deposition and hydrological conditions were reconstructed from sediment cores collected from eight lakes along an 80-km transect northwest of Yellowknife, following the prevailing wind direction. Two sediment cores were collected from each lake by using a Uwitec gravity corer fitted with PVC tubes (86-mm internal diameter). These lake sediment cores provide further characterization of the Giant Mine emission footprint, and the depositional and post-depositional history of arsenic and other metals in sub-arctic lakes and their catchments.
format Dataset
author Jasiak, Izabela
Wolfe, Brent
Hall, Roland
Venkiteswaran, Jason
author_facet Jasiak, Izabela
Wolfe, Brent
Hall, Roland
Venkiteswaran, Jason
author_sort Jasiak, Izabela
title Data for: Evaluating spatiotemporal patterns of arsenic, antimony, and lead deposition from legacy gold mine emissions using lake sediment records
title_short Data for: Evaluating spatiotemporal patterns of arsenic, antimony, and lead deposition from legacy gold mine emissions using lake sediment records
title_full Data for: Evaluating spatiotemporal patterns of arsenic, antimony, and lead deposition from legacy gold mine emissions using lake sediment records
title_fullStr Data for: Evaluating spatiotemporal patterns of arsenic, antimony, and lead deposition from legacy gold mine emissions using lake sediment records
title_full_unstemmed Data for: Evaluating spatiotemporal patterns of arsenic, antimony, and lead deposition from legacy gold mine emissions using lake sediment records
title_sort data for: evaluating spatiotemporal patterns of arsenic, antimony, and lead deposition from legacy gold mine emissions using lake sediment records
publishDate 2021
url https://search.dataone.org/view/sha256:1d11c6349cd21962e9e7d78a6a0ed47488d20ce0778a121b67d59d6470fbc513
geographic Arctic
Northwest Territories
Yellowknife
geographic_facet Arctic
Northwest Territories
Yellowknife
genre Arctic
Northwest Territories
Yellowknife
genre_facet Arctic
Northwest Territories
Yellowknife
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