Number of the records: 1
Microplastics meet micropollutants in a central european river stream: Adsorption of pollutants to microplastics under environmentally relevant conditions
- 1.
SYSNO ASEP 0598311 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Microplastics meet micropollutants in a central european river stream: Adsorption of pollutants to microplastics under environmentally relevant conditions Author(s) Titov, Ivan (MBU-M) ORCID
Semerád, Jaroslav (MBU-M) ORCID, RID
Boháčková, Jana (MBU-M) RID, ORCID
Beneš, Hynek (UMCH-V) RID, ORCID
Cajthaml, Tomáš (MBU-M) RID, ORCIDArticle number 124616 Source Title Environmental Pollution. - : Elsevier - ISSN 0269-7491
Roč. 360, November 1 (2024)Number of pages 11 s. Language eng - English Country NL - Netherlands Keywords organic-compounds ; sorption ; polyethylene ; particles ; variability ; degradation ; desorption ; mechanisms ; pellets ; Low-density polyethylene (LDPE) ; Polyethylene terephthalate (PET) ; Polyvinyl chloride (PVC) ; aging ; Telmisartan ; Pharmaceuticals Subject RIV EH - Ecology, Behaviour OECD category Environmental sciences (social aspects to be 5.7) Subject RIV - cooperation Institute of Macromolecular Chemistry - Macromolecular Chemistry R&D Projects GA20-29315S GA ČR - Czech Science Foundation (CSF) Research Infrastructure NanoEnviCz III - 90266 - Ústav fyzikální chemie J. Heyrovského AV ČR, v. v. i. Method of publishing Limited access Institutional support MBU-M - RVO:61388971 ; UMCH-V - RVO:61389013 UT WOS 001290393100001 EID SCOPUS 85200406145 DOI https://doi.org/10.1016/j.envpol.2024.124616 Annotation Microplastics have emerged as pervasive pollutants in aquatic environments, and their interaction with organic contaminants poses a significant environmental challenge. This study aimed to explore the adsorption of micropollutants onto microplastics in a river, examining different plastic materials and the effect of aging on adsorption capacity. Microplastics (low-density polyethylene (LDPE), polyethylene terephthalate (PET), and polyvinyl chloride (PVC)) were introduced into a river stream, and a comprehensive analysis involving 297 organic pollutants was conducted. Passive samplers were deployed to monitor micropollutant presence in the river. Sixty-four analytes were identified in the river flow, with telmisartan being the most prevalent. Nonaged PVC showed the highest telmisartan concentration at 279 ng/g (168 ng/m2 regarding the microplastic surface), while aged PVC exhibited a fourfold decrease. Conversely, aged LDPE preferentially adsorbed metoprolol and tramadol, with concentrations increasing 12- and 3-fold, respectively, compared to nonaged LDPE. Azithromycin and clarithromycin, positively charged compounds, exhibited higher sorption to PET microplastics, regardless of aging. Diclofenac showed higher concentrations on nonaged PVC compared to aged PVC. Aging induced structural changes in microplastics, including color alterations, smaller particle production, and increased specific surface area. These changes influenced micropollutant adsorption, with hydrophobicity, dissociation constants, and the ionic form of pollutants being key factors. Aged microplastics generally showed different sorption properties. A comparison of microplastics and control sand particles indicated preferential micropollutant sorption to microplastics, underscoring their role as vectors for contaminant transport in aquatic ecosystems. Analysis of river sediment emphasized the significance of contact time in pollutant accumulation. Overall, this study provides insights into the complex interactions between microplastics and organic pollutants under environmental conditions and contributes to a better understanding of the fate and behavior of these two types of contaminants in aquatic ecosystems. Workplace Institute of Microbiology Contact Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Year of Publishing 2025 Electronic address https://www.sciencedirect.com/science/article/pii/S0269749124013307?via%3Dihub
Number of the records: 1