Evaluation of the Ecotoxicity of New Polyurethane Composites on Target Organisms for Aquatic and Atmospheric Environments.

Bio-based polyurethanes ammines daphnia magna ecophysiological parameters lichens toxicity

Journal

Environmental toxicology and chemistry
ISSN: 1552-8618
Titre abrégé: Environ Toxicol Chem
Pays: United States
ID NLM: 8308958

Informations de publication

Date de publication:
02 2023
Historique:
revised: 03 10 2022
received: 30 06 2022
accepted: 23 11 2022
pubmed: 25 11 2022
medline: 31 1 2023
entrez: 24 11 2022
Statut: ppublish

Résumé

The present study investigated if new biocomposite materials, polyurethanes (PURs) added with functionalized cellulose fibers, produce potential toxic effects on two target organisms currently used in biomonitoring the quality of two different environmental compartments. Natural fibers were extracted from the species Spartium junceum L., a shrub commonly found in the southern region of the Mediterranean having a high cellulose content. All PURs produced were characterized by Fourier-transform infrared spectroscopy, and their structure was analyzed by scanning electron microscopy. We measured the effects of exposure to aromatic and aliphatic PUR composites (containing or not cellulose fibers) on the aquatic model organism Daphnia magna Straus, a freshwater crustacean (Cladocera), and a biomonitor of air quality, the fruticose epiphytic lichen Pseudevernia furfuracea (L.) Zopf. Leachates from aliphatic PUR composite not containing cellulose are more toxic to D. magna than all others, showing a slight acute toxicity in the case of the shortest exposure (24 h) and a moderate acute toxicity in the longer one (48 h). This effect is most likely due to the presence of free organic ammines and amides, which, in their turn, are immobilized in composites containing cellulosic fibers because of the considerable amount of chemical functional groups. Regarding lichens, both types of aliphatic PURs resulted in a toxic effect. Formulate not added with cellulose strongly promoted fungal peroxidation, whereas that which was functionalized affected the pigment concentration of the algal partner. Our results suggest that the use of cellulose in PUR production, in general, can limit the ecotoxicological effects on both test organisms and reduce the potential environmental impact due to this type of polymer. Environ Toxicol Chem 2023;42:421-436. © 2022 SETAC.

Identifiants

pubmed: 36420672
doi: 10.1002/etc.5532
doi:

Substances chimiques

Polyurethanes 0
Water Pollutants, Chemical 0

Types de publication

Journal Article Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

421-436

Informations de copyright

© 2022 SETAC.

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Auteurs

Anna Corapi (A)

Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende, Calabria, Italy.

Luana Gallo (L)

Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende, Calabria, Italy.

Lucio Lucadamo (L)

Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende, Calabria, Italy.

Antonio Tursi (A)

Department of Chemistry and Chemical Technologies, University of Calabria, Arcavacata di Rende, Calabria, Italy.

Giuseppe Chidichimo (G)

Department of Chemistry and Chemical Technologies, University of Calabria, Arcavacata di Rende, Calabria, Italy.

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