Source apportionment of major ions and trace metals in the lacustrine systems of Schirmacher Hills, East Antarctica.
The fabric of the Antarctic lacustrine system has a crucial role in assimilating the anthropogenic inputs and mitigating their long time impacts on climate change. Here, we present the changes in the concentrations of major ions and trace metals in the surface water of the lacustrine system to under...
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ftpubmed:38936712 2024-09-15T17:48:35+00:00 Source apportionment of major ions and trace metals in the lacustrine systems of Schirmacher Hills, East Antarctica. M B, Binish Tiwari, A K N S, Magesh Mohan, Mahesh C M, Laluraj 2024 Oct 10 https://doi.org/10.1016/j.scitotenv.2024.174189 https://pubmed.ncbi.nlm.nih.gov/38936712 eng eng Elsevier Science https://doi.org/10.1016/j.scitotenv.2024.174189 https://pubmed.ncbi.nlm.nih.gov/38936712 Copyright © 2024 Elsevier B.V. All rights reserved. Sci Total Environ ISSN:1879-1026 Volume:946 Antarctica Lacustrine system Major ions Trace metals Water quality Journal Article 2024 ftpubmed https://doi.org/10.1016/j.scitotenv.2024.174189 2024-07-20T16:02:00Z The fabric of the Antarctic lacustrine system has a crucial role in assimilating the anthropogenic inputs and mitigating their long time impacts on climate change. Here, we present the changes in the concentrations of major ions and trace metals in the surface water of the lacustrine system to understand the extent of anthropogenic impacts from the adjacent Schirmacher Hills, East Antarctica. The results show that the land-locked lakes (closed-basin lakes surrounded by topographical barriers such as mountains or bedrock formations) in the region have a moderate enrichment in elemental concentrations compared to the pro-glacial lakes (marginal freshwater bodies that form at the terminus of a glacier or ice sheet). The water quality index (WQI: 7.58-12.63) and pollution evaluation index (PEI: 1.36-2.35) remained normal, indicating that the water in these lake are of good quality. However, a significant correlation between lithogenic elements (Al, Fe) and potentially toxic elements (Cd, Cr, and Ba), suggests an increase in the anthropogenic impacts. Based on the principal component analysis (PCA), the source of trace metals to the lacustrine systems appears to be the surrounding environment, followed by aerosol dust particles. Hierarchical cluster analysis (HCA) revealed that regional topography significantly impacts the supply of major ions/trace metals to these lakes. The present study provides baseline data and can be used to estimate and forecast future local and/or global anthropogenic contaminations in the lacustrine system of Schirmacher Hills, East Antarctica. Moreover, the presence of research stations (Maitri and Novolazarevskaya), tourist activities, and the potential for anthropogenic stressors necessitate continued monitoring and impact assessment programs within the Schirmacher Hills lacustrine systems. These programs are crucial for safeguarding this pristine ecosystem from future environmental disturbances under a changing Antarctic climate, as mandated by the Antarctic Treaty System and the Indian Antarctic Act. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Ice Sheet PubMed Central (PMC) Science of The Total Environment 946 174189 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Antarctica Lacustrine system Major ions Trace metals Water quality |
spellingShingle |
Antarctica Lacustrine system Major ions Trace metals Water quality M B, Binish Tiwari, A K N S, Magesh Mohan, Mahesh C M, Laluraj Source apportionment of major ions and trace metals in the lacustrine systems of Schirmacher Hills, East Antarctica. |
topic_facet |
Antarctica Lacustrine system Major ions Trace metals Water quality |
description |
The fabric of the Antarctic lacustrine system has a crucial role in assimilating the anthropogenic inputs and mitigating their long time impacts on climate change. Here, we present the changes in the concentrations of major ions and trace metals in the surface water of the lacustrine system to understand the extent of anthropogenic impacts from the adjacent Schirmacher Hills, East Antarctica. The results show that the land-locked lakes (closed-basin lakes surrounded by topographical barriers such as mountains or bedrock formations) in the region have a moderate enrichment in elemental concentrations compared to the pro-glacial lakes (marginal freshwater bodies that form at the terminus of a glacier or ice sheet). The water quality index (WQI: 7.58-12.63) and pollution evaluation index (PEI: 1.36-2.35) remained normal, indicating that the water in these lake are of good quality. However, a significant correlation between lithogenic elements (Al, Fe) and potentially toxic elements (Cd, Cr, and Ba), suggests an increase in the anthropogenic impacts. Based on the principal component analysis (PCA), the source of trace metals to the lacustrine systems appears to be the surrounding environment, followed by aerosol dust particles. Hierarchical cluster analysis (HCA) revealed that regional topography significantly impacts the supply of major ions/trace metals to these lakes. The present study provides baseline data and can be used to estimate and forecast future local and/or global anthropogenic contaminations in the lacustrine system of Schirmacher Hills, East Antarctica. Moreover, the presence of research stations (Maitri and Novolazarevskaya), tourist activities, and the potential for anthropogenic stressors necessitate continued monitoring and impact assessment programs within the Schirmacher Hills lacustrine systems. These programs are crucial for safeguarding this pristine ecosystem from future environmental disturbances under a changing Antarctic climate, as mandated by the Antarctic Treaty System and the Indian Antarctic Act. |
format |
Article in Journal/Newspaper |
author |
M B, Binish Tiwari, A K N S, Magesh Mohan, Mahesh C M, Laluraj |
author_facet |
M B, Binish Tiwari, A K N S, Magesh Mohan, Mahesh C M, Laluraj |
author_sort |
M B, Binish |
title |
Source apportionment of major ions and trace metals in the lacustrine systems of Schirmacher Hills, East Antarctica. |
title_short |
Source apportionment of major ions and trace metals in the lacustrine systems of Schirmacher Hills, East Antarctica. |
title_full |
Source apportionment of major ions and trace metals in the lacustrine systems of Schirmacher Hills, East Antarctica. |
title_fullStr |
Source apportionment of major ions and trace metals in the lacustrine systems of Schirmacher Hills, East Antarctica. |
title_full_unstemmed |
Source apportionment of major ions and trace metals in the lacustrine systems of Schirmacher Hills, East Antarctica. |
title_sort |
source apportionment of major ions and trace metals in the lacustrine systems of schirmacher hills, east antarctica. |
publisher |
Elsevier Science |
publishDate |
2024 |
url |
https://doi.org/10.1016/j.scitotenv.2024.174189 https://pubmed.ncbi.nlm.nih.gov/38936712 |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet |
op_source |
Sci Total Environ ISSN:1879-1026 Volume:946 |
op_relation |
https://doi.org/10.1016/j.scitotenv.2024.174189 https://pubmed.ncbi.nlm.nih.gov/38936712 |
op_rights |
Copyright © 2024 Elsevier B.V. All rights reserved. |
op_doi |
https://doi.org/10.1016/j.scitotenv.2024.174189 |
container_title |
Science of The Total Environment |
container_volume |
946 |
container_start_page |
174189 |
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1810289977458688000 |