Comprehensive study of acute toxicity using Microtox® bioassay in soils contaminated by lindane wastes

This research studies the acute toxicity of real contaminated soils (topsoil and subsoil) with hazardous chlorinated organic compounds (COCs) from lindane manufacturing wastes. The Microtox® bioassay was used to determine the toxicity of soils (modified Basic Solid Phase Test), soil elutriates (Basi...

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Autores: Domínguez Torre, Carmen María, Ventura, Paula, Checa Fernández, Cristina Alicia, Santos López, Aurora
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/72691
Acceso en línea:https://hdl.handle.net/20.500.14352/72691
Access Level:acceso abierto
Palabra clave:HCHs
DNAPL
Lindane wastes
Ecotoxicity
Polluted soil
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spelling Comprehensive study of acute toxicity using Microtox® bioassay in soils contaminated by lindane wastesDomínguez Torre, Carmen MaríaVentura, PaulaCheca Fernández, Cristina AliciaSantos López, AuroraHCHsDNAPLLindane wastesEcotoxicityPolluted soilThis research studies the acute toxicity of real contaminated soils (topsoil and subsoil) with hazardous chlorinated organic compounds (COCs) from lindane manufacturing wastes. The Microtox® bioassay was used to determine the toxicity of soils (modified Basic Solid Phase Test), soil elutriates (Basic Test), and organic extracts (adapted Organic Solvent Sample Solubilization Test), in which hydrophobic organic compounds are soluble. The acute toxicity of these persistent contaminants (hexachlorocyclohexanes, HCH isomers, as particulate matter in topsoil, and COCs, from dense nonaqueous phase liquid, DNAPL, in subsoil) and the commercial compounds were also measured. Soils tested showed different contaminant levels (topsoil: 0.9–1149 mg/kg and subsoil: 20–9528 mg/kg). Soil contaminants distribution, concentration and acute toxicity were highly related to the contamination source (HCHs or DNAPL). Soils, organic extracts, and subsoil elutriates presented high toxicity, highlighting the need for remediation of these sites. EC50 was calculated in the three-test applied for the soils tested. EC50 vs. COCs concentration in soils and soil elutriates showed an asymptotic trend, explained by the low pollutants solubility in the aqueous phase. Contrarily, EC50 vs. soil COCs concentration was more linear in the case of the organic extracts. This test was the most reliable from statistical analysis. The three methods reveal interesting and complementary information and are necessary for a complete overview of the acute toxicity of contaminated soils.ElsevierUniversidad Complutense de Madrid20232023-01-0120232023-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/72691reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial 3.0 Españahttps://creativecommons.org/licenses/by-nc/3.0/es/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/726912026-06-02T12:44:21Z
dc.title.none.fl_str_mv Comprehensive study of acute toxicity using Microtox® bioassay in soils contaminated by lindane wastes
title Comprehensive study of acute toxicity using Microtox® bioassay in soils contaminated by lindane wastes
spellingShingle Comprehensive study of acute toxicity using Microtox® bioassay in soils contaminated by lindane wastes
Domínguez Torre, Carmen María
HCHs
DNAPL
Lindane wastes
Ecotoxicity
Polluted soil
title_short Comprehensive study of acute toxicity using Microtox® bioassay in soils contaminated by lindane wastes
title_full Comprehensive study of acute toxicity using Microtox® bioassay in soils contaminated by lindane wastes
title_fullStr Comprehensive study of acute toxicity using Microtox® bioassay in soils contaminated by lindane wastes
title_full_unstemmed Comprehensive study of acute toxicity using Microtox® bioassay in soils contaminated by lindane wastes
title_sort Comprehensive study of acute toxicity using Microtox® bioassay in soils contaminated by lindane wastes
dc.creator.none.fl_str_mv Domínguez Torre, Carmen María
Ventura, Paula
Checa Fernández, Cristina Alicia
Santos López, Aurora
author Domínguez Torre, Carmen María
author_facet Domínguez Torre, Carmen María
Ventura, Paula
Checa Fernández, Cristina Alicia
Santos López, Aurora
author_role author
author2 Ventura, Paula
Checa Fernández, Cristina Alicia
Santos López, Aurora
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv HCHs
DNAPL
Lindane wastes
Ecotoxicity
Polluted soil
topic HCHs
DNAPL
Lindane wastes
Ecotoxicity
Polluted soil
description This research studies the acute toxicity of real contaminated soils (topsoil and subsoil) with hazardous chlorinated organic compounds (COCs) from lindane manufacturing wastes. The Microtox® bioassay was used to determine the toxicity of soils (modified Basic Solid Phase Test), soil elutriates (Basic Test), and organic extracts (adapted Organic Solvent Sample Solubilization Test), in which hydrophobic organic compounds are soluble. The acute toxicity of these persistent contaminants (hexachlorocyclohexanes, HCH isomers, as particulate matter in topsoil, and COCs, from dense nonaqueous phase liquid, DNAPL, in subsoil) and the commercial compounds were also measured. Soils tested showed different contaminant levels (topsoil: 0.9–1149 mg/kg and subsoil: 20–9528 mg/kg). Soil contaminants distribution, concentration and acute toxicity were highly related to the contamination source (HCHs or DNAPL). Soils, organic extracts, and subsoil elutriates presented high toxicity, highlighting the need for remediation of these sites. EC50 was calculated in the three-test applied for the soils tested. EC50 vs. COCs concentration in soils and soil elutriates showed an asymptotic trend, explained by the low pollutants solubility in the aqueous phase. Contrarily, EC50 vs. soil COCs concentration was more linear in the case of the organic extracts. This test was the most reliable from statistical analysis. The three methods reveal interesting and complementary information and are necessary for a complete overview of the acute toxicity of contaminated soils.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-01-01
2023
2023-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/72691
url https://hdl.handle.net/20.500.14352/72691
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
Atribución-NoComercial 3.0 España
https://creativecommons.org/licenses/by-nc/3.0/es/
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
Atribución-NoComercial 3.0 España
https://creativecommons.org/licenses/by-nc/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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