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Identification of Novel Iodinated Polyfluoroalkyl Ether Acids and Other Emerging PFAS in Soils Using a Nontargeted Molecular Network Approach.
Environ Sci Technol
January 2025
State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
Despite advancements in high-resolution screening techniques, the identification of novel perfluoroalkyl and polyfluoroalkyl substances (PFAS) remains challenging without prior structural information. In view of this, we proposed and implemented a new data-driven algorithm to calculate spectral similarity among PFAS, facilitating the generation of molecular networks to screen for unknown compounds. Using this approach, 81 PFAS across 12 distinct classes were identified in soil samples collected near an industrial park in Shandong Province, China, including the first reported occurrence of 12 iodine-substituted PFAS.
View Article and Find Full Text PDFSoil polluted system shapes endophytic fungi communities associated with : a field experiment.
PeerJ
January 2025
Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin, China.
With the expansion of the mining industry, environmental pollution from microelements (MP) and red mud (RM) has become a pressing issue. While bioremediation offers a cost-effective and sustainable solution, plant growth in these polluted environments remains difficult. is one of the few plants capable of surviving in RM-affected soils.
View Article and Find Full Text PDFPerformance, kinetics, and mechanism of 1,2,3-trimethylbenzene biodegradation by a newly isolated marine microalga.
J Environ Manage
January 2025
Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China.
Recently, marine pollution by the accidental spills of C9 aromatics has raised public concerns, especially for 1,2,3-trimethylbenzene (1,2,3-TMB) because it is high-toxic and refractory. However, insufficient understanding of molecular mechanism underlying the biodegradation of 1,2,3-TMB hindered research on its bioremediation. In addition, microalgae-mediated bioremediation is popular due to its eco-friendliness and carbon sequestration.
View Article and Find Full Text PDFPurification of arsenic-contaminated drinking water by Fe-Al-CO layered double hydroxide derived from secondary aluminum dross: adsorption and stabilization studies.
Sci Rep
January 2025
Research Laboratory of Inorganic Chemical Process Technologies, School of Chemical Engineering, University of Science and Technology, Narmak, Tehran, 1684613114, Iran.
This study aims to utilize secondary aluminum dross waste to synthesize Fe-Al layered double hydroxide (Fe-Al LDH) for efficient adsorption of arsenic from drinking water. The synthesis process was based on a multi-step hydrometallurgical approach, in which the aluminum content in the waste was first converted to sodium aluminate. This was followed by the transformation into Fe-Al LDH through a series of processes, including gelation, sol formation, simultaneous precipitation, and aging.
View Article and Find Full Text PDFRepair bond strength of composite resin to CAD/CAM glass-ceramic: influence of cleaning methods, surface treatments, and aging.
J Dent
January 2025
DDS, MS, PhD, Department of Dentistry, Federal University of Rio Grande do Norte, Natal, Brazil. Electronic address:
Objective: To evaluate the influence of different cleaning methods, surface treatments, and aging on the repair bond strength to a CAD/CAM glass-ceramic.
Materials And Methods: Forty-eight lithium disilicate CAD/CAM ceramic blocks were fabricated, sintered, and embedded in acrylic resin. After contamination with human saliva, they were divided according to the factors "Cleaning method" (Control-water/air spray, Air-particle abrasion with AlO, Ivoclean cleaning paste), "Surface treatment" (5% Hydrofluoric acid-HF + Silane, Monobond Etch & Prime-MEP), and "Aging" (thermocycling, no thermocycling).
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