Ecotoxic effect in Allium cepa due to sphalerite weathering arising in calcareous conditions

The ecotoxic effect of Zn species arising from the weathering of the marmatite-like sphalerite ((Fe, Zn)S) in Allium cepa systems was herein evaluated in calcareous soils and connected with its sulfide oxidation mechanism to determine the chemical speciation responsible of this outcome. Mineralogica...

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Veröffentlicht in:Environmental geochemistry and health 2024-03, Vol.46 (3), p.87-87, Article 87
Hauptverfasser: Ponce-Peña, Patricia, López-Ortega, Aldo R., Anguiano-Vega, Gerardo A., Sosa-Rodríguez, Fabiola S., Vázquez-Arenas, Jorge, Ramírez-Aldaba, Hugo, González-Lozano, Ma. Azucena, Trejo, Gabriel, Ruiz-Baca, Estela, Labastida, Israel, Escobedo-Bretado, Miguel A., Lara, René H.
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container_end_page 87
container_issue 3
container_start_page 87
container_title Environmental geochemistry and health
container_volume 46
creator Ponce-Peña, Patricia
López-Ortega, Aldo R.
Anguiano-Vega, Gerardo A.
Sosa-Rodríguez, Fabiola S.
Vázquez-Arenas, Jorge
Ramírez-Aldaba, Hugo
González-Lozano, Ma. Azucena
Trejo, Gabriel
Ruiz-Baca, Estela
Labastida, Israel
Escobedo-Bretado, Miguel A.
Lara, René H.
description The ecotoxic effect of Zn species arising from the weathering of the marmatite-like sphalerite ((Fe, Zn)S) in Allium cepa systems was herein evaluated in calcareous soils and connected with its sulfide oxidation mechanism to determine the chemical speciation responsible of this outcome. Mineralogical analyses (X-ray diffraction patterns, Raman spectroscopy, scanning electron microscopy and atomic force microscopy), chemical study of leachates (total Fe, Zn, Cd, oxidation–reduction potential, pH, sulfates and total alkalinity) and electrochemical assessments (chronoamperometry, chronopotentiometry, cyclic voltammetry, and electrochemical impedance spectroscopy) were carried out using (Fe, Zn)S samples to elucidate interfacial mechanisms simulating calcareous soil conditions. Results indicate the formation of polysulfides (S n 2− ), elemental sulfur (S 0 ), siderite (FeCO 3 )-like, hematite (Fe 2 O 3 )-like with sorbed CO 3 2− species, gunningite (ZnSO 4 ·H 2 O)-like phase and smithsonite (ZnCO 3 )-like compounds in altered surface under calcareous conditions. However, the generation of gunningite (ZnSO 4 ·H 2 O)-like phase was predominant bulk-solution system. Quantification of damage rates ranges from 75 to 90% of bulb cells under non-carbonated conditions after 15–30 days, while 50–75% of damage level is determined under neutral-alkaline carbonated conditions. Damage ratios are 70.08 and 30.26 at the highest level, respectively. These findings revealed lower ecotoxic damage due to ZnCO 3 -like precipitation, indicating the effect of carbonates on Zn compounds during vegetable up-taking (exposure). Other environmental suggestions of the (Fe, Zn)S weathering and ecotoxic effects under calcareous soil conditions are discussed.
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Azucena ; Trejo, Gabriel ; Ruiz-Baca, Estela ; Labastida, Israel ; Escobedo-Bretado, Miguel A. ; Lara, René H.</creator><creatorcontrib>Ponce-Peña, Patricia ; López-Ortega, Aldo R. ; Anguiano-Vega, Gerardo A. ; Sosa-Rodríguez, Fabiola S. ; Vázquez-Arenas, Jorge ; Ramírez-Aldaba, Hugo ; González-Lozano, Ma. Azucena ; Trejo, Gabriel ; Ruiz-Baca, Estela ; Labastida, Israel ; Escobedo-Bretado, Miguel A. ; Lara, René H.</creatorcontrib><description>The ecotoxic effect of Zn species arising from the weathering of the marmatite-like sphalerite ((Fe, Zn)S) in Allium cepa systems was herein evaluated in calcareous soils and connected with its sulfide oxidation mechanism to determine the chemical speciation responsible of this outcome. Mineralogical analyses (X-ray diffraction patterns, Raman spectroscopy, scanning electron microscopy and atomic force microscopy), chemical study of leachates (total Fe, Zn, Cd, oxidation–reduction potential, pH, sulfates and total alkalinity) and electrochemical assessments (chronoamperometry, chronopotentiometry, cyclic voltammetry, and electrochemical impedance spectroscopy) were carried out using (Fe, Zn)S samples to elucidate interfacial mechanisms simulating calcareous soil conditions. Results indicate the formation of polysulfides (S n 2− ), elemental sulfur (S 0 ), siderite (FeCO 3 )-like, hematite (Fe 2 O 3 )-like with sorbed CO 3 2− species, gunningite (ZnSO 4 ·H 2 O)-like phase and smithsonite (ZnCO 3 )-like compounds in altered surface under calcareous conditions. However, the generation of gunningite (ZnSO 4 ·H 2 O)-like phase was predominant bulk-solution system. Quantification of damage rates ranges from 75 to 90% of bulb cells under non-carbonated conditions after 15–30 days, while 50–75% of damage level is determined under neutral-alkaline carbonated conditions. Damage ratios are 70.08 and 30.26 at the highest level, respectively. These findings revealed lower ecotoxic damage due to ZnCO 3 -like precipitation, indicating the effect of carbonates on Zn compounds during vegetable up-taking (exposure). 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Azucena</creatorcontrib><creatorcontrib>Trejo, Gabriel</creatorcontrib><creatorcontrib>Ruiz-Baca, Estela</creatorcontrib><creatorcontrib>Labastida, Israel</creatorcontrib><creatorcontrib>Escobedo-Bretado, Miguel A.</creatorcontrib><creatorcontrib>Lara, René H.</creatorcontrib><title>Ecotoxic effect in Allium cepa due to sphalerite weathering arising in calcareous conditions</title><title>Environmental geochemistry and health</title><addtitle>Environ Geochem Health</addtitle><addtitle>Environ Geochem Health</addtitle><description>The ecotoxic effect of Zn species arising from the weathering of the marmatite-like sphalerite ((Fe, Zn)S) in Allium cepa systems was herein evaluated in calcareous soils and connected with its sulfide oxidation mechanism to determine the chemical speciation responsible of this outcome. Mineralogical analyses (X-ray diffraction patterns, Raman spectroscopy, scanning electron microscopy and atomic force microscopy), chemical study of leachates (total Fe, Zn, Cd, oxidation–reduction potential, pH, sulfates and total alkalinity) and electrochemical assessments (chronoamperometry, chronopotentiometry, cyclic voltammetry, and electrochemical impedance spectroscopy) were carried out using (Fe, Zn)S samples to elucidate interfacial mechanisms simulating calcareous soil conditions. Results indicate the formation of polysulfides (S n 2− ), elemental sulfur (S 0 ), siderite (FeCO 3 )-like, hematite (Fe 2 O 3 )-like with sorbed CO 3 2− species, gunningite (ZnSO 4 ·H 2 O)-like phase and smithsonite (ZnCO 3 )-like compounds in altered surface under calcareous conditions. However, the generation of gunningite (ZnSO 4 ·H 2 O)-like phase was predominant bulk-solution system. Quantification of damage rates ranges from 75 to 90% of bulb cells under non-carbonated conditions after 15–30 days, while 50–75% of damage level is determined under neutral-alkaline carbonated conditions. Damage ratios are 70.08 and 30.26 at the highest level, respectively. These findings revealed lower ecotoxic damage due to ZnCO 3 -like precipitation, indicating the effect of carbonates on Zn compounds during vegetable up-taking (exposure). 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Mineralogical analyses (X-ray diffraction patterns, Raman spectroscopy, scanning electron microscopy and atomic force microscopy), chemical study of leachates (total Fe, Zn, Cd, oxidation–reduction potential, pH, sulfates and total alkalinity) and electrochemical assessments (chronoamperometry, chronopotentiometry, cyclic voltammetry, and electrochemical impedance spectroscopy) were carried out using (Fe, Zn)S samples to elucidate interfacial mechanisms simulating calcareous soil conditions. Results indicate the formation of polysulfides (S n 2− ), elemental sulfur (S 0 ), siderite (FeCO 3 )-like, hematite (Fe 2 O 3 )-like with sorbed CO 3 2− species, gunningite (ZnSO 4 ·H 2 O)-like phase and smithsonite (ZnCO 3 )-like compounds in altered surface under calcareous conditions. However, the generation of gunningite (ZnSO 4 ·H 2 O)-like phase was predominant bulk-solution system. Quantification of damage rates ranges from 75 to 90% of bulb cells under non-carbonated conditions after 15–30 days, while 50–75% of damage level is determined under neutral-alkaline carbonated conditions. Damage ratios are 70.08 and 30.26 at the highest level, respectively. These findings revealed lower ecotoxic damage due to ZnCO 3 -like precipitation, indicating the effect of carbonates on Zn compounds during vegetable up-taking (exposure). Other environmental suggestions of the (Fe, Zn)S weathering and ecotoxic effects under calcareous soil conditions are discussed.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><pmid>38367090</pmid><doi>10.1007/s10653-024-01857-z</doi><tpages>1</tpages></addata></record>
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subjects Alkalinity
Allium cepa
Analytical methods
Atomic force microscopy
bulbs
Calcareous soils
Carbonates
Carbonation
Chemical speciation
Damage
dielectric spectroscopy
Diffraction patterns
Earth and Environmental Science
Electrochemical impedance spectroscopy
Electrochemistry
Electron microscopy
Environment
Environmental Chemistry
Environmental Health
Ferric oxide
Geochemistry
Haematite
Hematite
Iron
Iron carbonate
Leachates
Microscopy
Original Paper
Oxidation
Public Health
Raman spectroscopy
redox potential
Scanning electron microscopy
Siderite
smithsonite
Soil
Soil conditions
Soil Science & Conservation
Speciation
species
Spectroscopy
Spectrum analysis
Sphalerite
sulfides
Sulfur
Sulphides
Sulphur
Terrestrial Pollution
vegetables
voltammetry
Weathering
X-ray diffraction
Zinc
Zinc ores
Zinc sulfate
Zincblende
title Ecotoxic effect in Allium cepa due to sphalerite weathering arising in calcareous conditions
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