环境•农林最新文献

{"title":"Heterogeneous Nucleation of Calcium Carbonate on Functionalized Surfaces: Insights into Engineered Surfaces in Water Systems","authors":"Ping I Chou,Honghyun Kim,Deoukchen Ghim,Prashant Gupta,Zhenwei Gao,Minkyoung Jung,Srikanth Singamaneni,Byeongdu Lee,Young-Shin Jun","doi":"10.1039/d6en00765a","DOIUrl":"https://doi.org/10.1039/d6en00765a","url":null,"abstract":"Calcium carbonate (CaCO3) is a common mineral scale across diverse industrial and water infrastructure. Yet, the kinetics and thermodynamics of heterogeneously formed CaCO3 nanoparticles controlled by chemical functional groups remain poorly understood. By utilizing in situ grazing incidence small angle X-ray scattering and atomic force microscopy, this study investigates heterogeneous nucleation rates and nucleus sizes of CaCO3 nanoparticles on COOH-, OH-, NH2-, and F-functionalized surfaces with diverse chemical properties. The nucleation rates were in the order of COOH > OH > NH2 > F. Notably, COOH-surfaces exhibited significantly faster CaCO3 nucleation. The favorable CaCO3 nucleation on COOH-surfaces can be attributed to the hydrophilic surface and high chemical affinity to Ca2+. On the other hand, the positive surface potential and high hydrophobicity of NH2- and F-surfaces reduced their nucleation, respectively. Grazing incidence wide angle X-ray scattering determined the mineral phases of heterogeneously nucleated CaCO3 as vaterite and calcite. For both mineral phases, the F-surfaces had the highest free energy barrier of nucleation, followed by NH2-, OH-, and COOH-surfaces. These findings advance our understanding of the impact of surface functional groups on heterogeneous CaCO3 nucleation and help us better predict early-stage CaCO3 scaling in water treatment and energy-related subsurface operations.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"10 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149367817","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":"Neurotoxicity of micro- and nanoplastics: evidence, mechanisms, and environmental relevance","authors":"Jiahui Xia,Huixia Niu,Jiajing Zhou,Lizhi Wu,Longxiao Liu,Xin Gong,Xueqing Li,Mingluan Xing,Minjie Zhao,Pengcheng Tu,Zhijian Chen,Xiaoming Lou","doi":"10.1039/d6en00421k","DOIUrl":"https://doi.org/10.1039/d6en00421k","url":null,"abstract":"Micro- and nanoplastics (MNPs) have emerged as pervasive environmental contaminants that are now widely distributed across diverse ecosystems worldwide. Increasing evidence indicates that MNPs can enter biological systems through multiple exposure routes and accumulate in various organs, including the brain. To provide a comprehensive synthesis of current knowledge, we systematically searched the Web of Science Core Collection and PubMed for relevant literature published from database inception to 2026. The resulting evidence was reviewed to characterize the physicochemical properties, environmental distribution, and bioaccumulation of MNPs, with particular emphasis on their neurotoxic effects and underlying molecular and cellular mechanisms. Current findings suggest that MNPs can access the central nervous system by disrupting the blood–brain barrier (BBB) or via the olfactory nerve pathway. Once in neural tissues, MNPs may induce neurotoxicity through multiple mechanisms, including oxidative stress, neuroinflammation, disruption of protein signaling pathways, and modulation of the gut–brain axis. These processes may ultimately lead to behavioral abnormalities, neuronal damage, and an increased risk of neurodegenerative disorders. Despite the growing body of research, several critical challenges remain, including limitations in detection technologies, the diversity of MNP types, and the complexity of mixed environmental exposures. Future studies integrating multidisciplinary approaches will be essential to elucidate the neurotoxic mechanisms of MNPs more comprehensively and to inform evidence-based environmental and public health policies.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"15 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149367818","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":"Gut microbiome reorganization: Post-exposure responses after multigenerational graphene oxide treatment","authors":"Maria Augustyniak,Łukasz Napora-Rutkowski,Monika Malicka,Barbara Flasz,Christopher Rensing,Ewa Świerczek,Agnieszka Babczyńska,Monika Tarnawska,Andrzej Kędziorski","doi":"10.1039/d6en00678g","DOIUrl":"https://doi.org/10.1039/d6en00678g","url":null,"abstract":"Graphene oxide (GO) is increasingly recognized as an emerging environmental contaminant. However, studies examining chronic, multigenerational exposure and post-exposure responses following GO withdrawal remain scarce. We investigated the effects of low dietary GO concentrations (0.02 or 0.2 µg·g⁻¹) on the gut microbiome of the house cricket (Acheta domesticus) across five consecutive generations and a subsequent GO-free generation, using wild-type and longevity-selected strains. GO exposure did not cause microbiome collapse but induced concentration-, strain-, and generation-dependent reorganization of community composition. The strongest shifts occurred at the higher GO concentration and involved increased representation of Lactobacillales and selected Proteobacteria, whereas lower GO exposure was associated mainly with Tannerellaceae-related taxa. The longevity-selected strain exhibited a more constrained microbiome response and less pronounced physiological changes, suggesting that life-history traits influence host-microbiome responses to chronic environmental stress. The most distinctive responses occurred during the initial and post-exposure generations rather than during continuous exposure. In the post-exposure generation, the microbiome did not return to the control configuration. Instead, it exhibited a distinct community structure, with shifts in Tannerellaceae, Streptococcaceae, and Enterobacterales, while body mass in the previously exposed high-dose groups was 14.5% and 32.5% lower than in controls in the wild-type and longevity-selected strains, respectively. These findings indicate that chronic low-dose GO exposure results in microbiome reorganization rather than dysbiosis and highlight the importance of post-exposure responses, exposure history, and host life-history traits in shaping responses to environmental contaminants.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"48 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149360177","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":"Qualitative Screening of Pretreatment Workflows for Stereomicroscopic Visualization of Suspected Atmospheric Microplastics","authors":"Mohd Rosiskada Mohamed,&nbsp;Sara Yasina Yusuf,&nbsp;Anis Nadhirah Nasir,&nbsp;Nor Ruwaida Jamian,&nbsp;Muhamad Nur Firdaus Farid,&nbsp;Syazwaana Mohd Noor","doi":"10.1007/s11270-026-10133-y","DOIUrl":"10.1007/s11270-026-10133-y","url":null,"abstract":"<div><p>Atmospheric particulate samples collected on quartz-fibre filters can be difficult to examine stereomicroscopically because dense dark and granular residues obscure potential target particles. This exploratory study qualitatively screened five pretreatment configurations intended to improve visualization of morphologically suspected atmospheric microplastics. One PM₁₀-loaded quartz filter from a single 24-h sampling event was divided into eight approximately equal sections; five sections were allocated individually, one per method, without independent replication. All sections underwent static digestion in 100 mL of 30% H₂O₂ for eight days. The configurations then differed in additional heating, exploratory NaI-acetone or ZnCl₂ treatment, and final filtration through mixed cellulose ester (MCE) or glass microfibre (GF/F) filters. Entire filter surfaces were examined at 35 × magnification. H₂O₂-only treatment left a dense dark residue, additional heating produced abundant granular residue, and the NaI-acetone-treated MCE became tacky and yellowish. ZnCl₂ treatment followed by MCE filtration permitted visual detection of suspected particles, although granular residue remained. Under the conditions examined, the ZnCl₂-GF/F configuration provided the clearest visual differentiation of morphologically suspected particles against the processed filter background. These observations indicate visual promise only and do not demonstrate recovery, counting accuracy, reproducibility, polymer identity, or superiority of GF/F independently of treatment conditions. Replicated recovery experiments using matched filter substrates, treatment-specific blanks, complete-suspension filtration, and spectroscopic confirmation are required before analytical performance can be established.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"237 25","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149338603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Construction of Sewage Treatment Effluent COD Prediction Model: Feature Optimization and Interpretability Analysis","authors":"Yaqing Jiang,&nbsp;Fan Mo,&nbsp;Haibo Li","doi":"10.1007/s11270-026-10120-3","DOIUrl":"10.1007/s11270-026-10120-3","url":null,"abstract":"<div><p>Reliable effluent Chemical Oxygen Demand (COD) prediction is critical for stable operation and pollution control of municipal wastewater treatment systems. However, conventional forecasting methods are limited by feature redundancy, data imbalance and weak cross-model robustness. This study develops an integrated machine learning framework integrating feature screening, time-series data augmentation, multi-model evaluation and interpretability analysis. Based on 1,186 consecutive daily datasets from a municipal wastewater treatment plant in Yunnan, Pearson correlation analysis and Grey Relational Analysis (GRA) jointly screened six key variables: Mixed Liquor Suspended Solids (MLSS), Sludge Volume (SV), pH, influent Total Phosphorus (TP), influent COD and influent Biochemical Oxygen Demand (BOD₅). A time-series-based Synthetic Minority Oversampling Technique (SMOTE) was adopted to optimize sparse high-COD samples and avoid temporal inconsistency and data leakage. Among 16 typical models, the ExtraTrees model performed best, with a test R² of 0.839 and Mean Absolute Error (MAE) of 1.79 mg/L. Hapley Additive exPlanations (SHAP) analysis proved MLSS as the core factor affecting effluent COD, followed by SV, pH and influent parameters. Effluent COD is co-regulated by biomass, sludge settleability, reactor environment and external load. This framework offers accurate, interpretable references for wastewater treatment plants in effluent prediction, early warning and intelligent management.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"237 25","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149338604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Traceable selenium-doped microplastics and nanoplastics with environmentally realistic morphologies for multi-modal detection in complex biological matrices","authors":"F. Li,F. Blancho,H. R. Alanagh,J. R. Macairan,G. C. Kalogerakis,M. Hadioui,A. Saherwala,E. A. Laurent,K. J. Wilkinson,M. Maric,S. Ghoshal,R. Naccache,N. Tufenkji","doi":"10.1039/d6en00611f","DOIUrl":"https://doi.org/10.1039/d6en00611f","url":null,"abstract":"The detection of microplastics and nanoplastics (MNPs) pollution in environmental studies remains analytically challenging, especially at the nanoscale, due to their small size and low concentrations. Traceable MNPs containing elemental dopants have emerged as an interesting strategy for studying particle fate using element-specific techniques such as inductively coupled plasma mass spectrometry (ICP-MS) and single particle ICP-MS (spICP-MS). However, most existing traceable MNPs rely on model spherical particles that do not reflect the morphological diversity of environmental MNPs. In this work, we produce selenium-doped polystyrene MNPs with environmentally relevant, heterogeneous morphologies by combining free-radical polymerization with cryomilling. Selenium was selected as a tracer due to its low environmental background, its content tunability, its detectability by ICP-MS and the ability to covalently incorporate it into polymer matrices to minimize leaching. To demonstrate the applicability of the traceable particles for biological fate studies, we exposed Daphnia magna to Se-doped MNP suspensions to confirm particle internalization. Time-of-flight secondary ion mass spectrometry (ToF-SIMS) provided sub-micrometer localization of Se and polymer fragments within D. magna tissues, while optical photothermal infrared (O-PTIR) spectroscopy provided further verification of the identity and localization of the MNPs. This work introduces a proof-of-concept of an environmentally relevant platform for traceable MNPs and expands the toolbox for studying the fate, transport, and biological interactions of MNPs in controlled environmental systems.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"20 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149360179","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":"Integrating Hydrochemical Characterization, Pollution Indices, and Machine Learning for Groundwater Quality Assessment in the Maadher Hodna Aquifer (Algeria)","authors":"Mostafa Dougha,&nbsp;Tahar Selmane,&nbsp;Johnbosco C. Egbueri,&nbsp;Khaled A. El-Nagdy,&nbsp;Mourad Guesri,&nbsp;Ashraf A. Ahmed,&nbsp;Abdulrahman Seraj Almalki,&nbsp;Enas E. Hussein,&nbsp;Yacine Hasnaoui","doi":"10.1007/s11270-026-10107-0","DOIUrl":"10.1007/s11270-026-10107-0","url":null,"abstract":"<div><p>Groundwater in the Maadher Hodna aquifer (Algeria) was assessed using an integrated approach combining hydrochemical analysis, pollution indices, GIS mapping, and machine-learning techniques to distinguish natural hydrochemical controls from nitrate-related anthropogenic impacts. Electrical conductivity exceeded the drinking-water guideline in 93.33% of samples, while nitrate concentrations exceeded 50 mg L⁻¹ in 78.3% of samples. Groundwater was predominantly of the Ca–Mg–SO₄–Cl type, reflecting carbonate and evaporite dissolution, with evaporation contributing to salinization in some wells. The Pollution Index of Groundwater (PIG) indicated mainly low to moderate overall groundwater pollution, whereas the Nitrate Pollution Index (NPI) classified 70% of wells as nitrate-polluted, indicating substantial localized anthropogenic influence. Support vector regression (SVR) showed weak and unstable nitrate prediction from routine hydrochemical variables under five-fold cross-validation (<span>({R}^{2}=0.23pm 0.30)</span>; two folds yielded negative <span>({R}^{2})</span> values), suggesting that nitrate variability is not adequately explained by background hydrochemistry alone. The support vector machine (SVM) efficiently reproduced PIG-based groundwater-quality classes from the hydrochemical variables used in the PIG calculation, demonstrating potential for automated screening rather than an independent predictive relationship. Overall, the integrated framework identifies widespread mineralization and spatially heterogeneous nitrate contamination and provides a basis for targeted groundwater monitoring and agricultural pollution management.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"237 25","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11270-026-10107-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149338501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Studies on the Release of Selected Plasticizers from Polymer Packaging into the Aquatic Environment under Laboratory Conditions","authors":"Alina Pohl","doi":"10.1007/s11270-026-10119-w","DOIUrl":"10.1007/s11270-026-10119-w","url":null,"abstract":"<div><p>Plastics constitute a significant source of chemical additives that can migrate into aquatic environments during use and the degradation of polymer materials. The aim of this study was to determine the release dynamics of selected plasticizers (phthalates and bis(2-ethylhexyl) adipate) and phenolic compounds (alkylphenols and bisphenol A) from single-use products made from different types of plastics. The study was conducted under laboratory conditions using leaching tests in distilled water over three time intervals (7, 30, and 60 days). The analyzed materials were classified into seven groups according to recycling codes (polyethylene terephthalate (PET), high-density polyethylene (HDPE), polyvinyl chloride (PVC), low-density polyethylene (LDPE), polypropylene (PP), polystyrene (PS), other (OTHER)). Concentrations were determined using gas chromatography coupled with mass spectrometry (GC–MS). The results showed significant variation in the amounts of released additives depending on the type of polymer and the duration of the test. The highest concentrations of phthalates and bis(2-ethylhexyl) adipate were observed in products made of HDPE and PVC, whereas for alkylphenols and bisphenol A, PVC was the dominant polymer exhibiting the highest concentrations. Temporal variability in the concentrations of organic compounds leached from the polymer matrix was observed, most likely due to the experimental design and the non-linear nature of the leaching process. The obtained results indicate that single-use polymer products can serve as a potential source of organic contaminants in aquatic environments, and that the migration of additives is influenced by multiple material and environmental factors.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"237 25","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11270-026-10119-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149338606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrokinetic–solidification Using Recycled Construction-waste–slag Binders: Strength–leaching Coupling in Pb–Zn Sludge","authors":"Xinhao Qin,&nbsp;Jianwen Ding,&nbsp;Chuanrong Xue,&nbsp;Zhengtao Yang","doi":"10.1007/s11270-026-10135-w","DOIUrl":"10.1007/s11270-026-10135-w","url":null,"abstract":"<div><p>This study investigated Pb–Zn co-contaminated, high-plasticity, low-permeability sludge treated with construction-and-demolition waste powder (CDWP) and ground granulated blast-furnace slag (GGBFS) binders. Three routes were compared: direct solidification, solidification after 72 h electrokinetic remediation (EKR), and ordinary Portland cement solidification. At the optimal 50:50 CDWP:GGBFS ratio, the unconfined compressive strength (UCS) increased from 643 to 1089 kPa for A3 and from 747 to 1191 kPa for B3; B3 exceeded A3 by 16.1% and 9.3% at 7 and 28 days, respectively. EKR pretreatment produced lower electrical conductivity and faster pH recovery during curing. The EKR-stage mass recoveries were 92.43% for Pb and 98.72% for Zn. Zn had a higher electrolyte-associated mass than Pb, indicating stronger migration into the electrolyte, whereas Pb showed lower electrolyte-associated migration and greater retention in the soil–binder matrix with partial leachability. All solidified samples showed Pb and Zn leachate concentrations below the GB 5085.3–2007 limits. SEM and XRD results were consistent with matrix densification and crystalline hydration-phase development, although specific Pb/Zn binding mechanisms require direct speciation analysis. Overall, EKR pretreatment followed by CDWP–GGBFS solidification improved strength and leaching performance and provides preliminary guidance for treating Pb–Zn-contaminated low-permeability sludge.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"237 25","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149338252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Source-Sink Differentiation of Phosphorus in Cascade Reservoirs: Hydrodynamic Controls on Phosphorus Migration and Transformation","authors":"Mengru Li,&nbsp;Yalei Liu,&nbsp;Qing Wang,&nbsp;Weiqing Zhou,&nbsp;Ningtao Wang,&nbsp;Xinyu Hou,&nbsp;Yiyang Li","doi":"10.1007/s11270-026-10118-x","DOIUrl":"10.1007/s11270-026-10118-x","url":null,"abstract":"<div><p>Hydrodynamic disturbance regulates phosphorus (P) release and retention in reservoir sediments, but the response varies spatially among cascade reservoirs. We investigated Xuanmiaoguan and Tianfumiao reservoirs using field measurements, P fractionation, and 48-h adsorption-release experiments conducted under static, low- and high-disturbance conditions. Contrasting source-sink patterns were observed between the two reservoirs. The deep mid-reservoir zone acted as a P source in Xuanmiaoguan, where porewater PO₄-P was 3.89 times that in the overlying water, whereas the tail acted as a sink. The tail was the main source in Tianfumiao, whereas the head acted as a sink. Distinct hydrodynamic responses were further observed between the two reservoirs. The highest cumulative release reached 94.5 mg kg⁻¹ under sustained low disturbance in Xuanmiaoguan source sediment, indicating prolonged P mobilization, whereas Tianfumiao source sediment showed a more sustained release pattern. Phosphorus capture was enhanced differently in the two sink zones, with the highest adsorption reaching 122 mg kg⁻¹ under low disturbance in Tianfumiao. Phosphorus fractionation further indicated that disturbance-driven mobilization was accompanied by redistribution from inorganic P to organic P. These results demonstrate that hydrodynamic forcing regulates phosphorus source-sink differentiation through reservoir-specific effects on release, adsorption, and fraction transformation, providing a basis for site-specific hydrodynamic management.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"237 25","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149338251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}