Flood-induced metal contamination in the topsoil of floodplain agricultural soils: A case-study in Colombia
Anomalously cold conditions in the tropical Pacific, related to a strong La Niña event, affected numerous countries in 2010. Several areas in Colombia were severely impacted, including agricultural fields in La Mojana floodplain that were completely flooded for almost 2 years. This study assesses the effects of flooding on the levels, spatial distribution, and sources of trace metals in 222 agricultural topsoils of this floodplain. Our results show that mean concentrations of Cu 48.4 mg kg−1 (11–103 mg kg−1), Zn 79.2 mg kg−1 (6–207 mg kg−1), Ni 58.1 mg kg−1 (17–101 mg kg−1), Pb 3.2 mg kg−1 (0.13–14 mg kg−1), Cd 0.56 mg kg−1 (0.05–1.4 mg kg−1), Mn 411 mg kg−1 (55–1,277 mg kg−1), and Hg 0.10 mg kg−1 (0.05–0.22 mg kg−1) were higher than the world's averages. Topsoils revealed different degrees of pollution depending on the metal, of which Pb was the most problematic element, with 82% of the soil samples classified as heavily contaminated. Principal component analysis suggests that soil contamination was primarily derived from poor agricultural practices and contaminated river overflows from upstream mining areas. Our results show that an extreme flood event might increase the bioavailability of metals (especially Pb) for crops in most (66%) of the agricultural soils, posing a potential threat to human health. © 2019 John Wiley & Sons, Ltd.
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Format: | artículo biblioteca |
Language: | English |
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Wiley-Blackwell
2019-06-28
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Subjects: | Bioavailable, Hg, Floodings, La Niña, Trace metal, Pb, Hazard quotient, |
Online Access: | http://hdl.handle.net/10261/193543 |
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dig-idaea-es-10261-1935432020-09-24T07:47:57Z Flood-induced metal contamination in the topsoil of floodplain agricultural soils: A case-study in Colombia Marrugo-Negrete, José Luis Pinedo-Hernández, José Joaquín Combatt C., Enrique Bravo, Andrea G. Díez, Sergi Díez, Sergi [0000-0002-9870-2179] Bioavailable Hg Floodings La Niña Trace metal Pb Hazard quotient Anomalously cold conditions in the tropical Pacific, related to a strong La Niña event, affected numerous countries in 2010. Several areas in Colombia were severely impacted, including agricultural fields in La Mojana floodplain that were completely flooded for almost 2 years. This study assesses the effects of flooding on the levels, spatial distribution, and sources of trace metals in 222 agricultural topsoils of this floodplain. Our results show that mean concentrations of Cu 48.4 mg kg−1 (11–103 mg kg−1), Zn 79.2 mg kg−1 (6–207 mg kg−1), Ni 58.1 mg kg−1 (17–101 mg kg−1), Pb 3.2 mg kg−1 (0.13–14 mg kg−1), Cd 0.56 mg kg−1 (0.05–1.4 mg kg−1), Mn 411 mg kg−1 (55–1,277 mg kg−1), and Hg 0.10 mg kg−1 (0.05–0.22 mg kg−1) were higher than the world's averages. Topsoils revealed different degrees of pollution depending on the metal, of which Pb was the most problematic element, with 82% of the soil samples classified as heavily contaminated. Principal component analysis suggests that soil contamination was primarily derived from poor agricultural practices and contaminated river overflows from upstream mining areas. Our results show that an extreme flood event might increase the bioavailability of metals (especially Pb) for crops in most (66%) of the agricultural soils, posing a potential threat to human health. © 2019 John Wiley & Sons, Ltd. The authors gratefully acknowledge the University of Córdoba and the Colombian Institute for the Development of Science and Technology ‘Francisco José de Caldas’ (COLCIENCIAS) for financing the codified project 1112‐569‐35214, grant 0211‐2013. Peer reviewed 2019-10-28T08:17:55Z 2019-10-28T08:17:55Z 2019-06-28 artículo http://purl.org/coar/resource_type/c_6501 Land Degradation and Development (2019) http://hdl.handle.net/10261/193543 10.1002/ldr.3398 en #PLACEHOLDER_PARENT_METADATA_VALUE# https://doi.org/10.1002/ldr.3398 Publisher's version Sí open Wiley-Blackwell |
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Bioavailable Hg Floodings La Niña Trace metal Pb Hazard quotient Bioavailable Hg Floodings La Niña Trace metal Pb Hazard quotient |
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Bioavailable Hg Floodings La Niña Trace metal Pb Hazard quotient Bioavailable Hg Floodings La Niña Trace metal Pb Hazard quotient Marrugo-Negrete, José Luis Pinedo-Hernández, José Joaquín Combatt C., Enrique Bravo, Andrea G. Díez, Sergi Flood-induced metal contamination in the topsoil of floodplain agricultural soils: A case-study in Colombia |
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Anomalously cold conditions in the tropical Pacific, related to a strong La Niña event, affected numerous countries in 2010. Several areas in Colombia were severely impacted, including agricultural fields in La Mojana floodplain that were completely flooded for almost 2 years. This study assesses the effects of flooding on the levels, spatial distribution, and sources of trace metals in 222 agricultural topsoils of this floodplain. Our results show that mean concentrations of Cu 48.4 mg kg−1 (11–103 mg kg−1), Zn 79.2 mg kg−1 (6–207 mg kg−1), Ni 58.1 mg kg−1 (17–101 mg kg−1), Pb 3.2 mg kg−1 (0.13–14 mg kg−1), Cd 0.56 mg kg−1 (0.05–1.4 mg kg−1), Mn 411 mg kg−1 (55–1,277 mg kg−1), and Hg 0.10 mg kg−1 (0.05–0.22 mg kg−1) were higher than the world's averages. Topsoils revealed different degrees of pollution depending on the metal, of which Pb was the most problematic element, with 82% of the soil samples classified as heavily contaminated. Principal component analysis suggests that soil contamination was primarily derived from poor agricultural practices and contaminated river overflows from upstream mining areas. Our results show that an extreme flood event might increase the bioavailability of metals (especially Pb) for crops in most (66%) of the agricultural soils, posing a potential threat to human health. © 2019 John Wiley & Sons, Ltd. |
author2 |
Díez, Sergi [0000-0002-9870-2179] |
author_facet |
Díez, Sergi [0000-0002-9870-2179] Marrugo-Negrete, José Luis Pinedo-Hernández, José Joaquín Combatt C., Enrique Bravo, Andrea G. Díez, Sergi |
format |
artículo |
topic_facet |
Bioavailable Hg Floodings La Niña Trace metal Pb Hazard quotient |
author |
Marrugo-Negrete, José Luis Pinedo-Hernández, José Joaquín Combatt C., Enrique Bravo, Andrea G. Díez, Sergi |
author_sort |
Marrugo-Negrete, José Luis |
title |
Flood-induced metal contamination in the topsoil of floodplain agricultural soils: A case-study in Colombia |
title_short |
Flood-induced metal contamination in the topsoil of floodplain agricultural soils: A case-study in Colombia |
title_full |
Flood-induced metal contamination in the topsoil of floodplain agricultural soils: A case-study in Colombia |
title_fullStr |
Flood-induced metal contamination in the topsoil of floodplain agricultural soils: A case-study in Colombia |
title_full_unstemmed |
Flood-induced metal contamination in the topsoil of floodplain agricultural soils: A case-study in Colombia |
title_sort |
flood-induced metal contamination in the topsoil of floodplain agricultural soils: a case-study in colombia |
publisher |
Wiley-Blackwell |
publishDate |
2019-06-28 |
url |
http://hdl.handle.net/10261/193543 |
work_keys_str_mv |
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