Trace element distribution and pollution status of surface sediments in lakes impacted by volcanic activity

Mostrar todas las versiones(2)

Purpose The main objective of the study was to assess the environmental quality status of the sediments of eleven Patagon-ian lakes regarding the concentrations of five trace elements, evaluating the influence of volcanic activity and water and sediment parameters on element concentration and distr...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Apestegui, Aranza, Juncos, Romina, Daga, Romina, Barriga, Juan Pablo, Rizzo, Andrea, Ribeiro Guevara, Sergio
Formato: Articulo article acceptedVersion
Lenguaje:Inglés
Publicado: Springer Link 2023
Materias:
Potentially toxic elements
Contamination assessment
Lake sediments
Volcanic impact
Ciencias de la Tierra y Medio Ambiente
Acceso en línea:http://rdi.uncoma.edu.ar/handle/uncomaid/17456
Aporte de:
Repositorio Institucional UNCo de Universidad Nacional del Comahue
id I22-R178-uncomaid-17456
record_format dspace
spelling I22-R178-uncomaid-174562023-10-18T11:48:37Z Trace element distribution and pollution status of surface sediments in lakes impacted by volcanic activity Apestegui, Aranza Juncos, Romina Daga, Romina Barriga, Juan Pablo Rizzo, Andrea Ribeiro Guevara, Sergio Potentially toxic elements Contamination assessment Lake sediments Volcanic impact Ciencias de la Tierra y Medio Ambiente Purpose The main objective of the study was to assess the environmental quality status of the sediments of eleven Patagon-ian lakes regarding the concentrations of five trace elements, evaluating the influence of volcanic activity and water and sediment parameters on element concentration and distribution. Materials and methods Surface sediment samples from 11 lakes were collected at different depths for granulometric analysis, organic matter (OM) contents, and determination of As, Br, Cr, Hg, Ni, and Zn concentrations. Physicochemical variables of the water column were also measured. The quality of the sediments and the potential ecological risks were assessed by comparing the concentrations of elements with local and global geochemical background values and with consensus-based sediment quality guidelines and through the calculation of environmental quality indices (enrichment factor and index of geo-accumulation). Results and discussion A higher proportion of sand with a lower %OM characterized the surface sediments in lakes close to the volcanic complex (PCCVC), while a higher proportion of silt–clay with a higher %OM was found in sediments from lakes furthest from the PCCVC, consistent with the expected gradient of volcanic ash size deposited in the lakes. The pres-ence of volcanic ashes in sediments seems to dilute trace element concentrations of samples, having sediment samples from lakes near the PCCVC lower concentrations of Br, Cr, and Ni than the furthest lakes. Environmental quality indices indicated minimal to moderate enrichment/contamination in sediments from deep lakes near the PCCVC and significant to high enrichment/contamination in sediments from lakes far from the volcano and in the shallower lakes. The concentrations of As, Cr, and Ni in six of the 11 sampled lakes are at levels considered harmful for sediment-dwelling organisms according to north hemisphere guidelines. Conclusions Despite being in a protected area, the sediments of some Patagonian lakes have concentrations of potentially toxic elements at levels that may cause pollution and be of risk to the aquatic biota, with the volcanic ashes acting to dilute this effect. Fil: Apestegui, Aranza. Universidad Nacional de Río Negro; Argentina. Fil: Juncos, Romina. Centro Atómico Bariloche. Comisión Nacional de Energía Atómica. Laboratorio de Análisis por Activación Neutrónica; Argentina. Fil: Juncos, Romina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Daga, Romina. Centro Atómico Bariloche. Comisión Nacional de Energía Atómica. Laboratorio de Análisis por Activación Neutrónica; Argentina. Fil: Daga, Romina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Barriga, Juan Pablo. Universidad Nacional del Comahue. Instituto de Investigaciones en Biodiversidad y Medioambiente. Grupo de Ecología y Fisiología de Peces; Argentina. Fil: Rizzo, Andrea. Centro Atómico Bariloche. Comisión Nacional de Energía Atómica. Laboratorio de Análisis por Activación Neutrónica; Argentina. Fil: Rizzo, Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Ribeiro Guevara, Sergio. Centro Atómico Bariloche. Comisión Nacional de Energía Atómica. Laboratorio de Análisis por Activación Neutrónica; Argentina. 2023 2023-10-12T17:11:16Z 2023-10-12T17:11:16Z Articulo article acceptedVersion http://rdi.uncoma.edu.ar/handle/uncomaid/17456 eng https://doi.org/10.1007/s11368-023-03429-7 Atribución-NoComercial-CompartirIgual 2.5 Argentina https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ application/pdf pp. 1552–1567 application/pdf Springer Link Journal of Soils and Sediments (2023) 23
institution Universidad Nacional del Comahue
institution_str I-22
repository_str R-178
collection Repositorio Institucional UNCo
language Inglés
topic Potentially toxic elements
Contamination assessment
Lake sediments
Volcanic impact
Ciencias de la Tierra y Medio Ambiente
spellingShingle Potentially toxic elements
Contamination assessment
Lake sediments
Volcanic impact
Ciencias de la Tierra y Medio Ambiente
Apestegui, Aranza
Juncos, Romina
Daga, Romina
Barriga, Juan Pablo
Rizzo, Andrea
Ribeiro Guevara, Sergio
Trace element distribution and pollution status of surface sediments in lakes impacted by volcanic activity
topic_facet Potentially toxic elements
Contamination assessment
Lake sediments
Volcanic impact
Ciencias de la Tierra y Medio Ambiente
description Purpose The main objective of the study was to assess the environmental quality status of the sediments of eleven Patagon-ian lakes regarding the concentrations of five trace elements, evaluating the influence of volcanic activity and water and sediment parameters on element concentration and distribution. Materials and methods Surface sediment samples from 11 lakes were collected at different depths for granulometric analysis, organic matter (OM) contents, and determination of As, Br, Cr, Hg, Ni, and Zn concentrations. Physicochemical variables of the water column were also measured. The quality of the sediments and the potential ecological risks were assessed by comparing the concentrations of elements with local and global geochemical background values and with consensus-based sediment quality guidelines and through the calculation of environmental quality indices (enrichment factor and index of geo-accumulation). Results and discussion A higher proportion of sand with a lower %OM characterized the surface sediments in lakes close to the volcanic complex (PCCVC), while a higher proportion of silt–clay with a higher %OM was found in sediments from lakes furthest from the PCCVC, consistent with the expected gradient of volcanic ash size deposited in the lakes. The pres-ence of volcanic ashes in sediments seems to dilute trace element concentrations of samples, having sediment samples from lakes near the PCCVC lower concentrations of Br, Cr, and Ni than the furthest lakes. Environmental quality indices indicated minimal to moderate enrichment/contamination in sediments from deep lakes near the PCCVC and significant to high enrichment/contamination in sediments from lakes far from the volcano and in the shallower lakes. The concentrations of As, Cr, and Ni in six of the 11 sampled lakes are at levels considered harmful for sediment-dwelling organisms according to north hemisphere guidelines. Conclusions Despite being in a protected area, the sediments of some Patagonian lakes have concentrations of potentially toxic elements at levels that may cause pollution and be of risk to the aquatic biota, with the volcanic ashes acting to dilute this effect.
format Articulo
article
acceptedVersion
author Apestegui, Aranza
Juncos, Romina
Daga, Romina
Barriga, Juan Pablo
Rizzo, Andrea
Ribeiro Guevara, Sergio
author_facet Apestegui, Aranza
Juncos, Romina
Daga, Romina
Barriga, Juan Pablo
Rizzo, Andrea
Ribeiro Guevara, Sergio
author_sort Apestegui, Aranza
title Trace element distribution and pollution status of surface sediments in lakes impacted by volcanic activity
title_short Trace element distribution and pollution status of surface sediments in lakes impacted by volcanic activity
title_full Trace element distribution and pollution status of surface sediments in lakes impacted by volcanic activity
title_fullStr Trace element distribution and pollution status of surface sediments in lakes impacted by volcanic activity
title_full_unstemmed Trace element distribution and pollution status of surface sediments in lakes impacted by volcanic activity
title_sort trace element distribution and pollution status of surface sediments in lakes impacted by volcanic activity
publisher Springer Link
publishDate 2023
url http://rdi.uncoma.edu.ar/handle/uncomaid/17456
work_keys_str_mv AT apesteguiaranza traceelementdistributionandpollutionstatusofsurfacesedimentsinlakesimpactedbyvolcanicactivity
AT juncosromina traceelementdistributionandpollutionstatusofsurfacesedimentsinlakesimpactedbyvolcanicactivity
AT dagaromina traceelementdistributionandpollutionstatusofsurfacesedimentsinlakesimpactedbyvolcanicactivity
AT barrigajuanpablo traceelementdistributionandpollutionstatusofsurfacesedimentsinlakesimpactedbyvolcanicactivity
AT rizzoandrea traceelementdistributionandpollutionstatusofsurfacesedimentsinlakesimpactedbyvolcanicactivity
AT ribeiroguevarasergio traceelementdistributionandpollutionstatusofsurfacesedimentsinlakesimpactedbyvolcanicactivity
_version_ 1807224474131496960

Ejemplares similares