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Insight into the fate of bioplastic and similar plant-based material debris in aquatic environments via continuous monitoring of their leachate composition – Release of carbon, metals, and additives
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SYSNO ASEP 0587991 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Insight into the fate of bioplastic and similar plant-based material debris in aquatic environments via continuous monitoring of their leachate composition – Release of carbon, metals, and additives Author(s) Pivokonský, Martin (UH-J) SAI, ORCID, RID
Novotná, Kateřina (UH-J) SAI, ORCID, RID
Pivokonská, Lenka (UH-J) SAI, ORCID, RID
Čermáková, Lenka (UH-J) RID, ORCID, SAI
Sakalli, Sidika (UH-J) ORCID, RID, SAIArticle number 174913 Source Title Science of the Total Environment. - : Elsevier - ISSN 0048-9697
Roč. 949, 1 November (2024)Number of pages 14 s. Publication form Online - E Language eng - English Country NL - Netherlands Keywords bio-based materials ; biodegradable materials ; dissolved organic carbon ; microplastics ; non-targeted analysis ; water quality Subject RIV DJ - Water Pollution ; Quality OECD category Environmental sciences (social aspects to be 5.7) Method of publishing Limited access Institutional support UH-J - RVO:67985874 UT WOS 001284041800001 EID SCOPUS 85199717821 DOI https://doi.org/10.1016/j.scitotenv.2024.174913 Annotation Currently, the environmental problems associated with plastic production and waste, such as the consequences of worldwide pollution of natural waters with microplastics, have led to the seeking of alternative materials that can at least partially replace conventional petroleum-based plastics. Substitute materials include bioplastics and similar plant-based materials or their composites. However, their fate when disposed of in unintended environments (e.g., water bodies) remains largely unknown, while such information is highly desirable prior to massive expansion of exploiting such materials. This study aims to contribute filling this knowledge gap. Specifically, 19 different types of bioplastic and similar plant-based material debris (corresponding to the size of microplastics) were kept in long-term contact with water to mimic their behaviour as water pollutants, and the leachates were continuously analysed. Eighteen of the 19 investigated materials released significant amounts of dissolved organic carbon—up to 34.0 mg per g of debris after 12 weeks of leaching. Each leachate also contained one or more of the following elements: Al, B, Ba, Ca, Fe, K, Mg, Mn, N, Na, P, Si, Ti, and Zn. Non-targeted analysis aimed at providing more specific insight into the leachate composition tentatively revealed 91 individual chemicals, mostly fatty acids and other carboxylic acids, phthalates, terephthalates, adipates, phenols, amides, alcohols, or organophosphates. Based on the compound characteristics, they might be additives, nonintentionally added substances, as well as their degradation products. In general, the current results imply that bioplastics and similar plant-based materials should be considered complex materials that undergo industrial processing and comprise additives rather than harmless natural matter. Additionally, various compounds can release from the bioplastic and similar plant-based material debris when deposited in water. It might have consequences on the fluxes of carbon, metals and specific organic contaminants, and it resembles some properties of conventional petroleum-based microplastics. Workplace Institute of Hydrodynamics Contact Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Year of Publishing 2025 Electronic address https://www.sciencedirect.com/science/article/pii/S0048969724050630
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