Experimental evaluation of zinc and copper terrestrial ecotoxicity prediction by life cycle assessment in agricultural recycling of livestock effluent

Clement Emma, Bravin Matthieu, Avadi Angel, Doelsch Emmanuel. 2025. Experimental evaluation of zinc and copper terrestrial ecotoxicity prediction by life cycle assessment in agricultural recycling of livestock effluent. Environmental Science and Technology, 11 p.

Url - autres données associées : https://gitlab.cirad.fr/recyclageetrisque/acv_ecoto_mix

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Résumé : The agronomic benefits of organic waste application on farmland can be overshadowed by the potential health and environmental impacts associated with trace element emissions, especially copper (Cu) and zinc (Zn). This has prompted a need for life cycle assessment (LCA) models to predict their terrestrial comparative toxicity potential (CTP) and impact score. We compared the LCA (reference method) prediction ability with that obtained with an experimental data set obtained from a month-long incubation experiment (experimental method) on a soil amended or not with 31 livestock effluents mimicking agronomically relevant scenarios. The impact scores for Cu and Zn differed between the reference and experimental methods due to CTP discrepancies between the two methods. The application of 31 livestock effluents on the soil resulted in variability in the experimentally determined CTP for Zn and Cu (0.6 and 1.9 log10 units) comparable to the CTP variability estimated by the reference method for several hundred worldwide soils. These results could be explained by the inadequate prediction of the dissolved organic carbon concentration and Cu and Zn concentration and speciation in soil solution. We propose refinements to the multilinear regressions used for the CTP computation that take the soil property patterns following livestock effluent application on soils into account.

Mots-clés Agrovoc : oligo-élement, écotoxicité, effluent, déchet organique, évaluation de l'impact, cuivre, zinc, impact sur l'environnement, technique analytique

Mots-clés géographiques Agrovoc : France, La Réunion

Mots-clés libres : Heavy metals, Manure, Ecotoxicity, Intermediate factors, Chemical speciation

Agences de financement européennes : European Commission

Agences de financement hors UE : Eurostars

Programme de financement européen : H2020

Projets sur financement : (FRA) Sustainable Usage of traces de minéraux dans les programmes de production animale

Auteurs et affiliations

• Clement Emma, CIRAD-PERSYST-UPR Recyclage et risque (FRA)
• Bravin Matthieu, CIRAD-PERSYST-UPR Recyclage et risque (FRA) ORCID: 0000-0002-1436-7837
• Avadi Angel, CIRAD-PERSYST-UPR Recyclage et risque (CIV) ORCID: 0000-0002-8114-916X
• Doelsch Emmanuel, CIRAD-PERSYST-UPR Recyclage et risque (FRA) ORCID: 0000-0002-7478-4296 - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/612193/)

Métriques

[ Page générée et mise en cache le 2025-03-01 ]