Cargando…
Distribution of metal contamination and grain size in the sediments of Nakdong River, Korea
To assess distribution of metal contamination and grain size in the sediments of Nakdong River (South Korea), surface sediments were collected from 21 sites and analyzed. Within the study area, sand was typically the dominant grain size. However, because of the reduced flow rate and flow velocity, s...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer International Publishing
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7347678/ https://www.ncbi.nlm.nih.gov/pubmed/32648138 http://dx.doi.org/10.1007/s10661-020-08475-z |
_version_ | 1783556639576555520 |
---|---|
author | Kim, Shin Yang, Deuk Seok Kim, Yong Seok |
author_facet | Kim, Shin Yang, Deuk Seok Kim, Yong Seok |
author_sort | Kim, Shin |
collection | PubMed |
description | To assess distribution of metal contamination and grain size in the sediments of Nakdong River (South Korea), surface sediments were collected from 21 sites and analyzed. Within the study area, sand was typically the dominant grain size. However, because of the reduced flow rate and flow velocity, sites adjacent to weirs were composed of relatively fine sediments. A comparison of sediment metal concentrations with sediment quality guidelines proposed by the USA, Canada, and South Korea revealed that sites adjacent to weirs had concentrations that exceeded the standard values. The enrichment factor, index of geo-accumulation, and pollution load index calculation results that the sites adjacent to weirs showed high contamination, with Cd accounting for the highest contamination levels. The metals in the study area varies due to the effect of fine sediments; therefore, high concentrations of metals accumulated adjacent to weirs where fine sediments were distributed in greater proportions. Furthermore, Cd exhibited the greatest contribution to metal contamination in the study area and the highest contamination levels were found at NS19 (adjacent to the Haman weir). Thus, the accumulation of fine sediment increased due to the influence of the weirs, thereby increasing the overall amount of metal contamination. |
format | Online Article Text |
id | pubmed-7347678 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Springer International Publishing |
record_format | MEDLINE/PubMed |
spelling | pubmed-73476782020-07-13 Distribution of metal contamination and grain size in the sediments of Nakdong River, Korea Kim, Shin Yang, Deuk Seok Kim, Yong Seok Environ Monit Assess Article To assess distribution of metal contamination and grain size in the sediments of Nakdong River (South Korea), surface sediments were collected from 21 sites and analyzed. Within the study area, sand was typically the dominant grain size. However, because of the reduced flow rate and flow velocity, sites adjacent to weirs were composed of relatively fine sediments. A comparison of sediment metal concentrations with sediment quality guidelines proposed by the USA, Canada, and South Korea revealed that sites adjacent to weirs had concentrations that exceeded the standard values. The enrichment factor, index of geo-accumulation, and pollution load index calculation results that the sites adjacent to weirs showed high contamination, with Cd accounting for the highest contamination levels. The metals in the study area varies due to the effect of fine sediments; therefore, high concentrations of metals accumulated adjacent to weirs where fine sediments were distributed in greater proportions. Furthermore, Cd exhibited the greatest contribution to metal contamination in the study area and the highest contamination levels were found at NS19 (adjacent to the Haman weir). Thus, the accumulation of fine sediment increased due to the influence of the weirs, thereby increasing the overall amount of metal contamination. Springer International Publishing 2020-07-09 2020 /pmc/articles/PMC7347678/ /pubmed/32648138 http://dx.doi.org/10.1007/s10661-020-08475-z Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Kim, Shin Yang, Deuk Seok Kim, Yong Seok Distribution of metal contamination and grain size in the sediments of Nakdong River, Korea |
title | Distribution of metal contamination and grain size in the sediments of Nakdong River, Korea |
title_full | Distribution of metal contamination and grain size in the sediments of Nakdong River, Korea |
title_fullStr | Distribution of metal contamination and grain size in the sediments of Nakdong River, Korea |
title_full_unstemmed | Distribution of metal contamination and grain size in the sediments of Nakdong River, Korea |
title_short | Distribution of metal contamination and grain size in the sediments of Nakdong River, Korea |
title_sort | distribution of metal contamination and grain size in the sediments of nakdong river, korea |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7347678/ https://www.ncbi.nlm.nih.gov/pubmed/32648138 http://dx.doi.org/10.1007/s10661-020-08475-z |
work_keys_str_mv | AT kimshin distributionofmetalcontaminationandgrainsizeinthesedimentsofnakdongriverkorea AT yangdeukseok distributionofmetalcontaminationandgrainsizeinthesedimentsofnakdongriverkorea AT kimyongseok distributionofmetalcontaminationandgrainsizeinthesedimentsofnakdongriverkorea |