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Qualitative analysis of the structures of the polymers composing floating plastic debris was performed using attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), and the aging of the debris was assessed by measuring carbonyl group formation on the particle surfaces. Plastic material made up >75% of the 2313 items collected during a three-year survey. The size, shape and color of the microplastic were correlated with the polymer structure. The most abundant plastic materials were polypropylene (68%) and low-density polyethylene (11%), and the predominant colors of the plastics were white, blue and green. Cilacap Bay, Indonesia, was contaminated with microplastic at a concentration of 2.5mg·m. The carbonyl index demonstrated that most of the floating microplastic was only slightly degraded. This study highlights the need to raise environmental awareness through citizen science education and adopting good environmental practices.
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http://dx.doi.org/10.1016/j.marpolbul.2017.06.046 | DOI Listing |
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August 2025
State Key Laboratory of Fire Science, University of Science and Technology of China, Jin Zhai Road 96, Hefei, Anhui, 230026, China.
Solar-driven interfacial evaporation is promising for seawater desalination and wastewater purification. However, its practical application remains limited by several challenges, including low effectiveness in microplastic removal, insufficient stability under extreme environmental conditions, and lack of well-integrated multifunctional optimization. In this work, a multifunctional, self-floating interfacial solar evaporator is designed by incorporating MXene (TiCT) with excellent photothermal conversion efficiency and silver nanowires (AgNWs), offering synergistic photothermal and antimicrobial properties.
View Article and Find Full Text PDFJ Hazard Mater
September 2025
Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, PR China.
This study investigated how microplastic (MP) hybridization influence the environmental behavior of per(poly)fluoroalkyl substances (PFASs), with a focus on the bioaccumulation and phytotoxicity of Eichhornia crassipes, a macrophyte employed for phytoremediation. Perfluorooctanoic acid (PFOA) and perfluoro-2-methyl-3-oxahexanoic acid (GenX) were selected as the targeted PFASs, and polypropylene (PP), polyethylene (PE), and polystyrene (PS) were selected as the model MPs. Compared with previous co-exposure studies, this study considered the exposed polymer component, and innovatively introduced Simpson diversity (SDI) index to evaluate the component evenness and complexity, thereby quantifying the MP hybridization.
View Article and Find Full Text PDFJ Hazard Mater
September 2025
School of Geographical Sciences, Hebei Key Laboratory of Environmental Change and Ecological Construction, Hebei Normal University, Shijiazhuang, Hebei 050024, China. Electronic address:
An ongoing debate exists on the magnitude of microplastics (MPs) emissions from the soil-air interface. Electrification of airborne microplastics MPs complicated the issue of modelling the transport of MPs by wind. Here, we first report new observations of wind-blown MP particles pronounced charged through wind tunnel experiments.
View Article and Find Full Text PDFSci Total Environ
August 2025
Jagiellonian University in Krakow, Faculty of Geography and Geology, Institute of Geography and Spatial Management, Gronostajowa 7, 30-387 Krakow, Poland.
Riverine litter poses a significant environmental challenge, with macroplastics being particularly problematic due to their persistence, potential to fragment into microplastics, and ability to act as vectors for pathogens, facilitating the spread of harmful bacteria in river ecosystems. In this study we employed field mapping, microbiological analysis, tracer experiments using PET-bottles, and probabilistic methods (survival analysis and hazard functions) to investigate litter composition, pathogen colonisation, and the influence of riverbed morphology and flow conditions on macroplastic transport and deposition in a mountain gravel-bed river (southern Poland). Field mapping revealed that macroplastics accounted for 86% of all litter in the Białka River, with foils making up 50% of plastic waste.
View Article and Find Full Text PDFEnviron Pollut
September 2025
Institute of Coastal Environmental Pollution Control, Key Laboratory of Marine Environment and Ecology (Ministry of Education), Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao, 266100, China; Laboratory for Marine Ecology and Environmental Sc
The combined effect of per- and polyfluoroalkyl substances (PFASs) and nanoplastics (NPs) on fish behavior is unclear. In the present study, PS NPs (65 nm, 1 mg/L) or perfluorobutyric acid (PFBA, 10 μg/L) alone caused behavioral disorders (e.g.
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