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We present a blue mussel exposure system where the fate of microplastics (polystyrene beads) is tracked during exposure and depuration phases. This enabled the establishment of a complete mass balance. Quantification of beads in mussels was done with a novel enzymatic digestion protocol. We found a similar relative distribution of beads for 2 environmentally realistic concentrations (5 and 100 beads L ) and no substantial egestion of particles within 2 h of depuration. Environ Toxicol Chem 2019;38:99-105. © 2018 SETAC.
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http://dx.doi.org/10.1002/etc.4285 | DOI Listing |
J Hazard Mater
September 2025
School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, PR China. Electronic address:
Microplastics (MPs) and the plastisphere they form pose substantial ecological risks in aquatic environments and wastewater treatment processes. As a unique niche, the evolution of plastisphere in anaerobic ammonium oxidation (anammox) systems remains poorly understood. This study investigated the physicochemical evolution of polyethylene terephthalate (PET) MPs and microbial succession within the plastisphere during a 30-day incubation with anammox granular sludge.
View Article and Find Full Text PDFSci Total Environ
September 2025
Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China. Electronic address:
Sewage sludge has long been believed as an essential sink for microplastics (MPs), with concentrations up to 1380 particles/kg dry weight. Considering that MP residues in present sewage sludge are predominantly aged, their surface characteristics have been modified, with specific surface area ranging from 1 m/g to 5 m/g and a carbonyl index increasing from 0.2 to 1.
View Article and Find Full Text PDFEnviron Sci Technol
September 2025
Environmental Systems Science Department, ETH Zürich, Universitätstrasse 16, 8092 Zurich, Switzerland.
The interactions of environmental DNA (eDNA) with microplastics (MPs) in aquatic ecosystems are influenced by water chemistry and the surface properties of plastics, impacting the fate of genetic material. While MPs' fate and transport have been studied extensively, the adsorption of eDNA onto polymer surfaces and its persistence remain less understood. Here, we systematically studied eDNA adsorption onto poly(ethylene terephthalate) (PET), polyethylene (PE), and silica (Si) surfaces, where the latter material was used as a proxy for comparison to natural particles.
View Article and Find Full Text PDFChemosphere
August 2025
University of Minnesota-Twin Cities Chemistry, 225 Pleasant St SE, Minneapolis, MN, 55455, USA. Electronic address:
Microplastics can facilitate the transport of environmental contaminants through sorption, which impacts the bioavailability of these contaminants. Due to the prevalence of both microplastics and polycyclic aromatic hydrocarbons (PAHs) in sludge and wastewater systems, we investigated the effects of sludge exposure on the uptake of PAHs by polylactic acid (PLA) and polyethylene (PE) films. In general, rates of PAH sorption were found to increase with longer sludge exposure times.
View Article and Find Full Text PDFMaterials (Basel)
August 2025
Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia.
This study investigates the adsorption behavior of 4-methylbenzylidene camphor (4-MBC), a persistent ultraviolet filter, onto microplastic fibers (MPFs) released from domestic textiles, under environmentally relevant conditions. Two types of MPFs were used: MPF A, a heterogeneous blend of synthetic and natural fibers, and MPF B, a uniform polyester source. Adsorption experiments were conducted in municipal wastewater, Danube River surface water, and laundry effluent.
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