Chemosphere最新文献

{"title":"Peroxide-driven activation on NH2 and graphitic-N doped rice-residue carbon for e−/h+ mediated degradation of acetaminophen and diclofenac","authors":"Larissa Crestani ,&nbsp;Camila Abreu Teles ,&nbsp;Gabriela Carvalho Collazzo ,&nbsp;Guilherme Luiz Dotto ,&nbsp;Yasmin Vieira","doi":"10.1016/j.chemosphere.2025.144641","DOIUrl":"10.1016/j.chemosphere.2025.144641","url":null,"abstract":"<div><div>This study presents a novel, sustainable, and metal-free photocatalyst based on nitrogen-doped carbon derived from pre-carbonized rice residue (CRHN) for the visible-light degradation of acetaminophen (ACT) and diclofenac (DC). Synthesized via urea-assisted pyrolysis, the material incorporated NH₂ and graphitic-N groups, enhancing surface basicity and reduced the band gap from 2.5 to 2.16 eV. Under optimal conditions (85 W, 0.1 g L⁻¹, pH 7), CRHN achieved mineralization efficiencies of 97% for DC and 70% for ACT within 30 min, outperforming the undoped material. Kinetic modeling followed a pseudo-second-order model, with rate constants of 0.022 and 0.002 L mg⁻¹ min⁻¹ for DC and ACT, respectively. Scavenger experiments confirmed the dominant role of <span><math><mrow><msup><mi>e</mi><mo>−</mo></msup><mo>/</mo><mi>h</mi><mmultiscripts><mo>+</mo></mmultiscripts></mrow></math></span> pairs, supported by •OH radicals in a peroxide-driven mechanism. Moreover, adsorption was negligible due to the low dosage of CRHN needed in the experiments. These findings highlight CRHN as a high-performance and eco-friendly photocatalyst for pharmaceutical degradation, promoting sustainable water treatment and agro-industrial waste valorization.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"386 ","pages":"Article 144641"},"PeriodicalIF":8.1,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144827203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Retraction notice to “Meteorological influences on air pollution dynamics in pollution epicentre of National Capital Region, India” [Chemosphere 377, May 2025, 144353]","authors":"Susanta Mahato ,&nbsp;Sonali Kundu ,&nbsp;Jan Cermak ,&nbsp;P.K. Joshi","doi":"10.1016/j.chemosphere.2025.144627","DOIUrl":"10.1016/j.chemosphere.2025.144627","url":null,"abstract":"","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"386 ","pages":"Article 144627"},"PeriodicalIF":8.1,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144857238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identification of flood-prone areas using the HEC-RAS 2D model in a region of the Valley of Mexico","authors":"Magdalena García Martínez,&nbsp;Luis Jesús Osornio Berthet,&nbsp;Jorge Meléndez Estrada,&nbsp;Oscar Cruz Castro","doi":"10.1016/j.chemosphere.2025.144609","DOIUrl":"10.1016/j.chemosphere.2025.144609","url":null,"abstract":"<div><div>This study aims to identify flood-prone areas in the Almoloya-Otzolotepec sub-basin, located in the Valley of Mexico, by applying HEC-RAS 2D model. The region, characterized by a semi-arid climate and variable topography, faces increased flood risks due to accelerated urbanization, which has significantly reduced agricultural land and expanded urban areas. A comprehensive hydrological analysis was conducted, incorporating meteorological data from local stations, IDF curves, and topographic information to develop a Digital Elevation Model (DEM) for simulation purposes. The HEC-RAS 2D model was applied under three different return periods (2, 100, and 500 years) to simulate various flooding scenarios. Results indicated moderate flooding in Zone I during the 2-year return period, with a higher severity observed in Zones II and VI during the 100- and 500-year return periods, where flooding depths could reach up to 5 m. The analysis emphasized the vulnerability of urban areas with insufficient drainage infrastructure, increasing the likelihood of severe flooding in these regions. These findings highlight the critical need for improved flood risk management, including enhanced drainage systems, larger reservoirs, and better urban planning to mitigate the impacts of climate change and protect vulnerable communities. This study provides essential information for designing effective flood mitigation strategies and serves as a basis for future planning and infrastructure improvements in the region to minimize flood damage and enhance resilience to extreme weather events.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"386 ","pages":"Article 144609"},"PeriodicalIF":8.1,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144826853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring the applicability of the RTgill-W1 and ZFL cell line assays in aquatic hazard assessment of mineral and organic nanomaterials","authors":"Ketelen Michele Guilherme de Oliveira ,&nbsp;Rayssa Barbary Pedroza Moura ,&nbsp;Stephânia Fleury Taveira ,&nbsp;Helena Lourenço Zielonka ,&nbsp;Darwin de Oliveira Brum ,&nbsp;Enzo Zini Moreira Silva ,&nbsp;Edvaldo da Silva Trindade ,&nbsp;Marta Margarete Cestari ,&nbsp;Pedro Henrique Gonzalez de Cademartori ,&nbsp;Washington Luiz Esteves Magalhães ,&nbsp;Daniela Morais Leme","doi":"10.1016/j.chemosphere.2025.144617","DOIUrl":"10.1016/j.chemosphere.2025.144617","url":null,"abstract":"<div><div>Many fish have been used annually to evaluate chemical hazards to aquatic environments; thus, cell-based methods, such as the RTgill-W1 and ZFL cell line assays, have been proposed as alternatives to provide information on acute toxicity to fish, mostly in screening approaches and as part of a weight of evidence (WoE) approach. These methods have been developed using soluble chemicals, which can pose challenges for testing novel types of chemicals, such as nanomaterials. Cellulose nanofiber (CNF) kraft-bleached pulp, chitosan nanoparticles (CS-NP), and silica nanoparticles (SiO₂-NP) were evaluated regarding their toxicity to fish cells using the RTgill-W1 and ZFL cell line assays (<em>in vitro</em>). Experiments were performed using the original protocols of each assay and modified versions to enhance the bioavailability of nanoparticles (NPs) during <em>in vitro</em> testing. NPs characterization in the exposure media (mean diameter, polydispersity index) was also performed. Both cell lines were exposed to CNF (39–1250 mg/L), CS-NP (4.88 mg/L to 156.25 mg/L), and SiO₂-NP (7.81 mg/L to 250 mg/L) for 24 h under static culture (original protocols) and orbital shaking at 150 rpm (modified protocols). Fish cell acute toxicity was determined based on cell viability readouts. There was no effect on cell viability for CNF in both cell lines, while SiO₂-NP and CS-NP presented toxicity. The toxic effect levels of SiO₂-NP and CS-NP were higher in the static culture than in the orbital shaking. For SiO₂-NP, ZFL cells showed higher sensitivity to SiO₂-NP toxicity than RTgill-W1; however, the <em>in vitro</em> data did not correlate with the available acute fish toxicity data (<em>in vivo</em>), and if these data were used for classification purposes under the United Nations' Globally Harmonized System of Classification and Labelling of Chemicals (UN GHS), this could lead to overprotective measurements. The NP characterization data demonstrated that all tested NPs exhibit higher aggregation tendencies, which helps explain the observed biological effects. Overall, these results underscore the need for improved <em>in vitro</em> methods to assess the toxicity of NPs to fish cells as well as provide insights into the toxicity of NPs to fish cells.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"386 ","pages":"Article 144617"},"PeriodicalIF":8.1,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144826855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development and performance evaluation of an analytical method for the analysis of polychlorinated naphthalenes (PCNs) and polychlorinated biphenyls (PCBs) accumulated in pine needles","authors":"Sung-Hee Seo ,&nbsp;Adriana C. Torres-Moreno ,&nbsp;Stuart Batterman","doi":"10.1016/j.chemosphere.2025.144630","DOIUrl":"10.1016/j.chemosphere.2025.144630","url":null,"abstract":"<div><div>Polychlorinated naphthalenes (PCNs) and polychlorinated biphenyls (PCBs) are persistent organic pollutants (POPs) characterized by their mobility, bioaccumulation potential, and toxicity. This study developed, optimized and validated an analytical method for measuring these compounds using pine needles as passive air samplers. We conducted a comprehensive literature review to assess previous methods and to propose an optimized sampling, preparation, extraction, clean-up, and instrumental analysis protocol. The final method employed ultrasonic extraction and Florisil solid-phase extraction (SPE) for clean-up, followed by gas chromatography–tandem mass spectrometry (GC-MS/MS) for quantification. We obtained high recoveries and excellent precisions. Method detection limits (MDLs) averaged 0.070 and 0.095 ng/g for PCNs and PCBs, respectively. To verify the method's applicability, pine needles from rural and urban areas were collected and analyzed. PCBs were detected in all areas, while PCNs were detected primarily in urban areas. Despite restrictions on the production of PCNs and PCBs, their continued detection suggests ongoing emissions and possibly long-range atmospheric transport. To our knowledge, this is the first study using a SPE-based method to analyze PCNs in pine needles. Overall, the optimized method is a relatively simple and robust approach for measuring environmental levels of PCNs and PCBs.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"386 ","pages":"Article 144630"},"PeriodicalIF":8.1,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144826854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of per- and polyfluoroalkyl substances in Sydney drinking water","authors":"Lisa Hua,&nbsp;William A. Donald","doi":"10.1016/j.chemosphere.2025.144611","DOIUrl":"10.1016/j.chemosphere.2025.144611","url":null,"abstract":"<div><div>Per- and polyfluoroalkyl substances (PFAS) have emerged as major persistent organic contaminants in global drinking water supplies. While PFAS contamination has been widely reported, their occurrence in Australian drinking water remains understudied. To address this gap, 32 tap water and 12 bottled water samples were collected across Sydney, Australia. The samples were preconcentrated using StrataX-AW solid-phase extraction (SPE) cartridges and analysed for 50 PFAS compounds using liquid chromatography-tandem mass spectrometry (LC-MS/MS), obtaining ultra-trace detection limits (0.031–5.1 ppt), low relative standard deviation (9–12 %), and high recovery (92–99 %). Of the 50 PFAS monitored, 31 were detected, including the first-reported detection of a short-chained fluorotelomer carboxylic acid (3:3 FTCA) in any drinking water and a fluorophosphoric acid diester (6:2 diPAP) in tap water. Compared to previous studies, 21 PFAS were detected in Sydney tap water that had not been previously reported in Australia. PFAS profiles differed between the catchment source and drinking tap water, persisting or appearing in altered proportions at the tap. Notably, maximum PFOS concentrations in some North Richmond catchment samples (6 ppt) were at or above U.S. EPA (4 ppt) but below endorsed 2025 Australian drinking water guidelines (8 ppt). These findings expand current knowledge of PFAS occurrence in drinking water and underscore the need for further assessment of their sources, distribution and environmental persistence.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"385 ","pages":"Article 144611"},"PeriodicalIF":8.1,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144839393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aerobic biodegradation of 3D printed biocomposites containing polylactic acid and industrial residual forest biomass","authors":"Sarra Helaoui ,&nbsp;Ahmed Koubaa ,&nbsp;Hedi Nouri ,&nbsp;Martin Beauregard ,&nbsp;Sofiane Guessasma","doi":"10.1016/j.chemosphere.2025.144608","DOIUrl":"10.1016/j.chemosphere.2025.144608","url":null,"abstract":"<div><div>This study investigates the biodegradation of 3D printed biocomposites under aerobic composting conditions. Biodegradable containers were prepared using forest biomass, wood ash (WA), wood sawdust (WS), and cellulose fiber (CF), as fillers and polylactic acid (PLA) as matrix and were processed via fused filament fabrication (FFF). Biodegradability tests were conducted in a laboratory-scale installation using the compost burial method for three months. Weight loss measurements were measured every 7 days throughout testing. The physicochemical and morphological properties of the samples were characterized. Of the biocomposites, PLA with 20 wt% wood sawdust showed the highest water absorption. The kinetic mechanisms followed typical Fickian diffusion behavior. The crystallinity improved with the addition of 20 wt% cellulose fibers. PLA degrades in a two-step process. Initially, temperature and moisture break down the PLA chains into lactic acid monomers. Subsequently, microorganisms in the compost convert these compounds into carbon dioxide, water, and biomass. A 97 % PLA weight loss was achieved after 3 months, with added fillers decreasing the biodegradability rate. Cracks on the surface and color changes were noted. Microorganisms were observed to settle in the spaces between the layers created by 3D printing. Fourier transform infrared spectra, scanning electron microscope micrographs, and synchrotron X-ray microtomographs revealed a microbial biofilm layer on the sample surfaces. After biodegradation, biocomposites can serve as soil fertilizer. Therefore, 3D printed biodegradable containers offer eco-friendly solutions that help minimize agricultural plastic waste accumulation and lower greenhouse gas emissions.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"385 ","pages":"Article 144608"},"PeriodicalIF":8.1,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144779430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inhibition of Daphnia pulex swimming behavior by volatile petroleum products: Optical monitoring in a novel sealed chamber","authors":"Zoha Siddiqua ,&nbsp;Dima Awad ,&nbsp;Paul Dobry ,&nbsp;Kishore Gopalakrishnan ,&nbsp;Shawn P. McElmurry ,&nbsp;Donna R. Kashian ,&nbsp;Tracie R. Baker ,&nbsp;David K. Pitts","doi":"10.1016/j.chemosphere.2025.144605","DOIUrl":"10.1016/j.chemosphere.2025.144605","url":null,"abstract":"<div><div>Since volatile organic chemicals (VOCs) evaporate at room temperatures, concentration-response studies are challenging in conventional assay systems, and new methods are needed to evaluate the effects of exposure that minimize VOC loss. In this study, the effects of three VOCs, benzene, toluene, and ethylbenzene on <em>Daphnia pulex</em> swimming behavior were evaluated. A novel bioassay system consisting of a sealed single-well cylindrical stainless-steel chamber with a glass bottom and top permit infrared light transmission and recording of movement with a digital camera. Exposure to increasing concentrations of toluene, benzene and ethylbenzene in water media significantly affected swimming behavior by decreasing swimming distance and increasing turning behavior. This novel assay system enables the study of VOCs at consistent exposure levels, and an upgraded multi-well version will increase throughput to test VOC mixtures for potential interactions among constituents that affect behavioral and transcriptomic responses.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"385 ","pages":"Article 144605"},"PeriodicalIF":8.1,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144772527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Retraction notice to “Advancement of green technologies: A comprehensive review on the potential application of microalgae biomass” [Chemosphere 281, October 2021, 130886]","authors":"Jiunn Kwok Yap ,&nbsp;Revathy Sankaran ,&nbsp;Kit Wayne Chew ,&nbsp;Heli Siti Halimatul Munawaroh ,&nbsp;Shih-Hsin Ho ,&nbsp;J. Rajesh Banu ,&nbsp;Pau Loke Show","doi":"10.1016/j.chemosphere.2025.144600","DOIUrl":"10.1016/j.chemosphere.2025.144600","url":null,"abstract":"","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"385 ","pages":"Article 144600"},"PeriodicalIF":8.1,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144769452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Retraction notice to “Plant extract-based green fabrication of nickel ferrite (NiFe2O4) nanoparticles: An operative platform for non-enzymatic determination of pentachlorophenol” [Chemosphere 294, May 2022, 133760]","authors":"Syed Iqleem H. Taqvi ,&nbsp;Amber R. Solangi ,&nbsp;Jamil A. Buledi ,&nbsp;Nadir H. Khand ,&nbsp;Bindia Junejo ,&nbsp;Almas F. Memon ,&nbsp;Sidra Ameen ,&nbsp;Atiya Bhatti ,&nbsp;Pau-Loke Show ,&nbsp;Yasser Vasseghian ,&nbsp;Hassan Karimi-Maleh","doi":"10.1016/j.chemosphere.2025.144601","DOIUrl":"10.1016/j.chemosphere.2025.144601","url":null,"abstract":"","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"385 ","pages":"Article 144601"},"PeriodicalIF":8.1,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144769453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}