Ecological Risk Due to Heavy Metal Contamination in Sediment and Water of Natural Wetlands with Tourist Influence in the Central Region of Peru

In this study, the quality of sediment and surface water in two natural wetlands, Paca and Tragadero, in the central region of Peru was evaluated using pollution indices, including the geoaccumulation index, pollutant load index, modified pollution degree, potential ecological risk index, and site r...

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Main Authors: María Custodio, Anthony Fow, Fernán Chanamé, Edith Orellana-Mendoza, Richard Peñaloza, Juan C. Alvarado, Deyvis Cano, Samuel Pizarro
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/13/16/2256
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author María Custodio
Anthony Fow
Fernán Chanamé
Edith Orellana-Mendoza
Richard Peñaloza
Juan C. Alvarado
Deyvis Cano
Samuel Pizarro
author_facet María Custodio
Anthony Fow
Fernán Chanamé
Edith Orellana-Mendoza
Richard Peñaloza
Juan C. Alvarado
Deyvis Cano
Samuel Pizarro
author_sort María Custodio
collection DOAJ
description In this study, the quality of sediment and surface water in two natural wetlands, Paca and Tragadero, in the central region of Peru was evaluated using pollution indices, including the geoaccumulation index, pollutant load index, modified pollution degree, potential ecological risk index, and site rank index, for four heavy metals. Principal component analysis was used to identify potential metal contaminant sources. The determination of Fe, Zn, Pb, and As was performed by flame atomic absorption spectrophotometry. The average concentrations of metals in the sediments of both lagoons decreased in the order Fe > Zn > Pb > As. The analysis of the contamination indices determined that As and Pb are the elements that contribute the most to environmental degradation in both wetlands. There is a strong correlation between the values of potential ecological risk and the modified degree of contamination, revealing that the Paca wetland has a moderate degree of contamination and potential ecological risk, while Tragadero presents a high degree of contamination and considerable potential ecological risk. The application of the site rank index showed that more than 50% of the sampling sites have between high and severe contamination. The principal component analysis presented 79.2% of the total variance. Finally, the results of this study are essential in order to carry out preventive actions for environmental protection in these lake ecosystems of great importance for many activities, such as bird watching.
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spelling doaj.art-9a8c9b3a8d264ec591bb97baa78ab2752023-11-22T10:15:00ZengMDPI AGWater2073-44412021-08-011316225610.3390/w13162256Ecological Risk Due to Heavy Metal Contamination in Sediment and Water of Natural Wetlands with Tourist Influence in the Central Region of PeruMaría Custodio0Anthony Fow1Fernán Chanamé2Edith Orellana-Mendoza3Richard Peñaloza4Juan C. Alvarado5Deyvis Cano6Samuel Pizarro7Centro de Investigación de Medicina en Altura y Medio Ambiente, Universidad Nacional del Centro del Perú, Av. Mariscal Castilla N° 3909, Huancayo 12006, PeruFacultad de Ingeniería Ambiental y de Recursos Naturales, Universidad Nacional del Callao, Av. Juan Pablo II 306, Bellavista-Callao 07011, PeruCentro de Investigación de Medicina en Altura y Medio Ambiente, Universidad Nacional del Centro del Perú, Av. Mariscal Castilla N° 3909, Huancayo 12006, PeruCentro de Investigación de Medicina en Altura y Medio Ambiente, Universidad Nacional del Centro del Perú, Av. Mariscal Castilla N° 3909, Huancayo 12006, PeruCentro de Investigación de Medicina en Altura y Medio Ambiente, Universidad Nacional del Centro del Perú, Av. Mariscal Castilla N° 3909, Huancayo 12006, PeruFacultad de Ciencias Naturales y Aplicadas, Universidad Nacional Intercultural “Fabiola Salazar Leguía” de Bagua, Jr. Comercio N 128, Bagua 01720, PeruCentro de Investigación de Medicina en Altura y Medio Ambiente, Universidad Nacional del Centro del Perú, Av. Mariscal Castilla N° 3909, Huancayo 12006, PeruCentro de Investigación de Medicina en Altura y Medio Ambiente, Universidad Nacional del Centro del Perú, Av. Mariscal Castilla N° 3909, Huancayo 12006, PeruIn this study, the quality of sediment and surface water in two natural wetlands, Paca and Tragadero, in the central region of Peru was evaluated using pollution indices, including the geoaccumulation index, pollutant load index, modified pollution degree, potential ecological risk index, and site rank index, for four heavy metals. Principal component analysis was used to identify potential metal contaminant sources. The determination of Fe, Zn, Pb, and As was performed by flame atomic absorption spectrophotometry. The average concentrations of metals in the sediments of both lagoons decreased in the order Fe > Zn > Pb > As. The analysis of the contamination indices determined that As and Pb are the elements that contribute the most to environmental degradation in both wetlands. There is a strong correlation between the values of potential ecological risk and the modified degree of contamination, revealing that the Paca wetland has a moderate degree of contamination and potential ecological risk, while Tragadero presents a high degree of contamination and considerable potential ecological risk. The application of the site rank index showed that more than 50% of the sampling sites have between high and severe contamination. The principal component analysis presented 79.2% of the total variance. Finally, the results of this study are essential in order to carry out preventive actions for environmental protection in these lake ecosystems of great importance for many activities, such as bird watching.https://www.mdpi.com/2073-4441/13/16/2256ecological risksite rank indexcontaminationheavy metalnatural wetlandslagoon
spellingShingle María Custodio
Anthony Fow
Fernán Chanamé
Edith Orellana-Mendoza
Richard Peñaloza
Juan C. Alvarado
Deyvis Cano
Samuel Pizarro
Ecological Risk Due to Heavy Metal Contamination in Sediment and Water of Natural Wetlands with Tourist Influence in the Central Region of Peru
Water
ecological risk
site rank index
contamination
heavy metal
natural wetlands
lagoon
title Ecological Risk Due to Heavy Metal Contamination in Sediment and Water of Natural Wetlands with Tourist Influence in the Central Region of Peru
title_full Ecological Risk Due to Heavy Metal Contamination in Sediment and Water of Natural Wetlands with Tourist Influence in the Central Region of Peru
title_fullStr Ecological Risk Due to Heavy Metal Contamination in Sediment and Water of Natural Wetlands with Tourist Influence in the Central Region of Peru
title_full_unstemmed Ecological Risk Due to Heavy Metal Contamination in Sediment and Water of Natural Wetlands with Tourist Influence in the Central Region of Peru
title_short Ecological Risk Due to Heavy Metal Contamination in Sediment and Water of Natural Wetlands with Tourist Influence in the Central Region of Peru
title_sort ecological risk due to heavy metal contamination in sediment and water of natural wetlands with tourist influence in the central region of peru
topic ecological risk
site rank index
contamination
heavy metal
natural wetlands
lagoon
url https://www.mdpi.com/2073-4441/13/16/2256
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