Environmental assessment of volcanic-ash-based alkali-activated binders: oxyanion leaching and marine bioassay responses

Volcanic ash (VA) from the 2021 Tajogaite eruption (La Palma, Spain) is a high-volume aluminosilicate residue with potential for low-carbon construction materials, yet its environmental behaviour remains insufficiently characterised. This study evaluates VA-based alkali-activated binders (AABs) thro...

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Autores: Muñoz Ruiz, Victoria, Santos Terán, Jorge, Mañosa Bover, Jofre, Cifrián Bemposta, Eva, Pérez Gandarillas, Lucía|||0000-0003-4986-0864, Chimenos Ribera, Josep María, Andrés Payán, Ana|||0000-0003-2290-3211
Tipo de recurso: artículo
Fecha de publicación:2026
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:dnet:ucreareposit::b9dc20bf6fb6b6ba503c78adb9b6194d
Acceso en línea:https://hdl.handle.net/10902/40389
Access Level:acceso abierto
Palabra clave:Volcanic ash
Alkali-activated binders
Oxyanion leaching
Seawater extracts
Marine ecotoxicology
Vibrio fischeri
Paracentrotus lividus
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spelling Environmental assessment of volcanic-ash-based alkali-activated binders: oxyanion leaching and marine bioassay responsesMuñoz Ruiz, VictoriaSantos Terán, JorgeMañosa Bover, JofreCifrián Bemposta, EvaPérez Gandarillas, Lucía|||0000-0003-4986-0864Chimenos Ribera, Josep MaríaAndrés Payán, Ana|||0000-0003-2290-3211Volcanic ashAlkali-activated bindersOxyanion leachingSeawater extractsMarine ecotoxicologyVibrio fischeriParacentrotus lividusVolcanic ash (VA) from the 2021 Tajogaite eruption (La Palma, Spain) is a high-volume aluminosilicate residue with potential for low-carbon construction materials, yet its environmental behaviour remains insufficiently characterised. This study evaluates VA-based alkali-activated binders (AABs) through standardized leaching tests UNE-EN 12457-4 (UNE, 2003), ICP-MS trace-element quantification, and two marine bioassays: the Vibrio fischeri luminescence inhibition test (ISO 11348-3:2007) and the Paracentrotus lividus embryo-larval development test. Activation with 6 M and 8 M NaOH substantially modified the geochemical release profile of the precursor, increasing pH, conductivity, and the mobilisation of oxyanion-forming elements (As, Mo, V). Mo exceeded EU inert-landfill limits, while Sb and Se approached regulatory thresholds. Seawater extractants buffered alkalinity but did not suppress oxyanion release, indicating that high ionic strength maintains MoO42-2 and VO4 3- solubility. The consistent release hierarchy (V > Mo > As) highlights the role of alkali-driven speciation. Bioassays showed marked taxon-specific sensitivity. V. fischeri classified all eluates as non-toxic (LID menor o igual que 8; TU < 0.4), suggesting limited acute effects on bacterial metabolism. Conversely, P. lividus exhibited significant sublethal toxicity, especially for the 8 M binder (EC50 = 56.90%), with developmental inhibition correlating with elevated oxyanion concentrations. These results demonstrate that VA-based AABs are technically viable but exhibit activation-dependent environmental behaviour that is not detected by bacterial assays alone. Results support integrating sensitive marine invertebrate bioassays into regulatory and weight-of-evidence frameworks and provide guidance for the sustainable management of volcanic residues and the deployment of alkali-activated materials in coastal and marine-influenced environments.This work was financially supported by the Spanish Government through grants PID2021-125810OB-C21, PID2022-138637OB-C33 and PID2024-160120OB-I00, funded by MCIN/AEI/10.13039/5011000110 33. The Catalan Government contributed with the Grant 2021 SGR 00708 through the Ag`encia de Gesti´o d'Ajuts Universitaris i de Recerca (AGAUR).Elsevier LtdUniversidad de Cantabria20262026-08-01journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttps://hdl.handle.net/10902/40389Marine Pollution Bulletin, 2026, 229, 119737reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:dnet:ucreareposit::b9dc20bf6fb6b6ba503c78adb9b6194d2026-06-02T12:39:31Z
dc.title.none.fl_str_mv Environmental assessment of volcanic-ash-based alkali-activated binders: oxyanion leaching and marine bioassay responses
title Environmental assessment of volcanic-ash-based alkali-activated binders: oxyanion leaching and marine bioassay responses
spellingShingle Environmental assessment of volcanic-ash-based alkali-activated binders: oxyanion leaching and marine bioassay responses
Muñoz Ruiz, Victoria
Volcanic ash
Alkali-activated binders
Oxyanion leaching
Seawater extracts
Marine ecotoxicology
Vibrio fischeri
Paracentrotus lividus
title_short Environmental assessment of volcanic-ash-based alkali-activated binders: oxyanion leaching and marine bioassay responses
title_full Environmental assessment of volcanic-ash-based alkali-activated binders: oxyanion leaching and marine bioassay responses
title_fullStr Environmental assessment of volcanic-ash-based alkali-activated binders: oxyanion leaching and marine bioassay responses
title_full_unstemmed Environmental assessment of volcanic-ash-based alkali-activated binders: oxyanion leaching and marine bioassay responses
title_sort Environmental assessment of volcanic-ash-based alkali-activated binders: oxyanion leaching and marine bioassay responses
dc.creator.none.fl_str_mv Muñoz Ruiz, Victoria
Santos Terán, Jorge
Mañosa Bover, Jofre
Cifrián Bemposta, Eva
Pérez Gandarillas, Lucía|||0000-0003-4986-0864
Chimenos Ribera, Josep María
Andrés Payán, Ana|||0000-0003-2290-3211
author Muñoz Ruiz, Victoria
author_facet Muñoz Ruiz, Victoria
Santos Terán, Jorge
Mañosa Bover, Jofre
Cifrián Bemposta, Eva
Pérez Gandarillas, Lucía|||0000-0003-4986-0864
Chimenos Ribera, Josep María
Andrés Payán, Ana|||0000-0003-2290-3211
author_role author
author2 Santos Terán, Jorge
Mañosa Bover, Jofre
Cifrián Bemposta, Eva
Pérez Gandarillas, Lucía|||0000-0003-4986-0864
Chimenos Ribera, Josep María
Andrés Payán, Ana|||0000-0003-2290-3211
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv Volcanic ash
Alkali-activated binders
Oxyanion leaching
Seawater extracts
Marine ecotoxicology
Vibrio fischeri
Paracentrotus lividus
topic Volcanic ash
Alkali-activated binders
Oxyanion leaching
Seawater extracts
Marine ecotoxicology
Vibrio fischeri
Paracentrotus lividus
description Volcanic ash (VA) from the 2021 Tajogaite eruption (La Palma, Spain) is a high-volume aluminosilicate residue with potential for low-carbon construction materials, yet its environmental behaviour remains insufficiently characterised. This study evaluates VA-based alkali-activated binders (AABs) through standardized leaching tests UNE-EN 12457-4 (UNE, 2003), ICP-MS trace-element quantification, and two marine bioassays: the Vibrio fischeri luminescence inhibition test (ISO 11348-3:2007) and the Paracentrotus lividus embryo-larval development test. Activation with 6 M and 8 M NaOH substantially modified the geochemical release profile of the precursor, increasing pH, conductivity, and the mobilisation of oxyanion-forming elements (As, Mo, V). Mo exceeded EU inert-landfill limits, while Sb and Se approached regulatory thresholds. Seawater extractants buffered alkalinity but did not suppress oxyanion release, indicating that high ionic strength maintains MoO42-2 and VO4 3- solubility. The consistent release hierarchy (V > Mo > As) highlights the role of alkali-driven speciation. Bioassays showed marked taxon-specific sensitivity. V. fischeri classified all eluates as non-toxic (LID menor o igual que 8; TU < 0.4), suggesting limited acute effects on bacterial metabolism. Conversely, P. lividus exhibited significant sublethal toxicity, especially for the 8 M binder (EC50 = 56.90%), with developmental inhibition correlating with elevated oxyanion concentrations. These results demonstrate that VA-based AABs are technically viable but exhibit activation-dependent environmental behaviour that is not detected by bacterial assays alone. Results support integrating sensitive marine invertebrate bioassays into regulatory and weight-of-evidence frameworks and provide guidance for the sustainable management of volcanic residues and the deployment of alkali-activated materials in coastal and marine-influenced environments.
publishDate 2026
dc.date.none.fl_str_mv 2026
2026-08-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10902/40389
url https://hdl.handle.net/10902/40389
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier Ltd
publisher.none.fl_str_mv Elsevier Ltd
dc.source.none.fl_str_mv Marine Pollution Bulletin, 2026, 229, 119737
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812455

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