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Characterizing nanoplastic suspensions of increasing complexity: Inter-laboratory comparison of size measurements using dynamic light scattering 表征日益复杂的纳米塑料悬浮液:使用动态光散射进行尺寸测量的实验室间比较
IF 8.131 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2025-10-14 DOI: 10.1039/d5en00645g
Korinna Altmann, Raquel Portela, Francesco Barbero, Esther Breuninger, Laura Maria Azzurra Camassa, Tanja Cirkovic Velickovic, Costas A. Charitidis, Anna Costa, Marta Fadda, Petra Fengler, Ivana Fenoglio, Andrea M. Giovannozzi, Øyvind Pernell Haugen, Panagiotis Kainourgios, Frank von der Kammer, Markus J. Kirchner, Madeleine Lomax-Vogt, Tamara Lujic, Frank Milczewski, Mhamad Aly Moussawi, Simona Ortelli, Tatjana N. Parac-Vogt, Annegret Potthoff, Julian J. Jimenez Reinosa, Sophie Röschter, Alessio Sacco, Lukas Wimmer, Ilaria Zanoni, Lea Ann Dailey
{"title":"Characterizing nanoplastic suspensions of increasing complexity: Inter-laboratory comparison of size measurements using dynamic light scattering","authors":"Korinna Altmann, Raquel Portela, Francesco Barbero, Esther Breuninger, Laura Maria Azzurra Camassa, Tanja Cirkovic Velickovic, Costas A. Charitidis, Anna Costa, Marta Fadda, Petra Fengler, Ivana Fenoglio, Andrea M. Giovannozzi, Øyvind Pernell Haugen, Panagiotis Kainourgios, Frank von der Kammer, Markus J. Kirchner, Madeleine Lomax-Vogt, Tamara Lujic, Frank Milczewski, Mhamad Aly Moussawi, Simona Ortelli, Tatjana N. Parac-Vogt, Annegret Potthoff, Julian J. Jimenez Reinosa, Sophie Röschter, Alessio Sacco, Lukas Wimmer, Ilaria Zanoni, Lea Ann Dailey","doi":"10.1039/d5en00645g","DOIUrl":"https://doi.org/10.1039/d5en00645g","url":null,"abstract":"Understanding the potential human health risks associated with micro- and nanoplastic exposure is currently a priority research area. Nanoplastic toxicity studies are complicated by the lack of available, well-characterized test and reference materials. Further, many nanoplastic test materials are inherently more polydisperse and heterogenous in shape compared to polystyrene beads, making accurate and representative size distribution measurements particularly challenging. The aim of this study was to conduct an inter-laboratory comparison of dynamic light scattering measurements, the most commonly used particle sizing method for nanomaterials. Using a published standard operating procedure, size measurements in water and a standardized cell culture medium (CCM) were generated for spherical, carboxy-functionalized polystyrene nanoparticles (PS-COOH; 50 nm; benchmark material), and for in-house produced spherical poly(ethylene terephthalate) (nanoPET) and irregular-shaped polypropylene (nanoPP) test materials. The weighted mean of hydrodynamic diameters of PS-COOH dispersed in water (55 ± 5 nm) showed moderate variation between labs (coefficient of variation, CV=8.2%) and were similar to literature reports. Measurements of nanoPET (82 ± 6 nm) and nanoPP (182 ± 12 nm) in water exhibited similar CV values (nanoPET: 7.3% and nanoPP; 6.8%). Dispersion of PS-COOH and nanoPET in CCM increased the CV to 15.1 and 17.9%, respectively, which is lower than literature reports (CV=30%). We conclude with a series of practical recommendations for robust size measurements of nanoplastics in both water and complex media highlighting that strict adherence to a standard operating procedure is required to prevent particle agglomeration in CCM.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"120 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145283128","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}
引用次数: 0
Herbivory rate is elevated but orb-weaver spider growth unaffected by artificial light at night in subtropical forest. 亚热带森林夜间人工光照对圆织蜘蛛的生长无影响,但对草食率有影响。
IF 2.1 3区 生物学
The Science of Nature Pub Date : 2025-10-14 DOI: 10.1007/s00114-025-02031-w
Yirong Guo, Yiu Siu, John A Allcock, Caroline Dingle, Louise A Ashton, Timothy C Bonebrake
{"title":"Herbivory rate is elevated but orb-weaver spider growth unaffected by artificial light at night in subtropical forest.","authors":"Yirong Guo, Yiu Siu, John A Allcock, Caroline Dingle, Louise A Ashton, Timothy C Bonebrake","doi":"10.1007/s00114-025-02031-w","DOIUrl":"10.1007/s00114-025-02031-w","url":null,"abstract":"<p><p>Artificial light at night (ALAN) is a growing threat to biodiversity and ecosystems globally. However, a limited number of studies have focused on the effect of ALAN in the tropical or subtropical regions, and the impact of ALAN on species interactions and ecological processes is particularly understudied. We introduced ALAN into light-naïve forest plots to examine whether ALAN affects herbivory rate and alters the growth and abundance of Nephila pilipes, a common orb-weaver spider. We found illuminated plots had a higher herbivory rate than control plots in the early wet season. The growth rate and abundance of the spider species, however, were not affected by ALAN. Our results indicate that ecological processes in tropical ecosystems, such as herbivory, are potentially sensitive to ALAN. Additionally, this study highlights the importance of a more mechanistic understanding of the sensitivities of tropical species interactions to ALAN and the possible complications caused by environmental variation.</p>","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"112 6","pages":"76"},"PeriodicalIF":2.1,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12521300/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145285419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Engineering MOFs-Based Homojunction Photocatalysts for Sustainable Energy and Environment 基于mofs的工程同结光催化剂在可持续能源与环境中的应用
IF 8.131 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2025-10-13 DOI: 10.1039/d5en00657k
Ruo-Xuan Mei, Peng Wang, Xiao-Hong Yi, Chong-Chen Wang
{"title":"Engineering MOFs-Based Homojunction Photocatalysts for Sustainable Energy and Environment","authors":"Ruo-Xuan Mei, Peng Wang, Xiao-Hong Yi, Chong-Chen Wang","doi":"10.1039/d5en00657k","DOIUrl":"https://doi.org/10.1039/d5en00657k","url":null,"abstract":"Homojunction photocatalysts have emerged as a promising alternative to conventional heterojunction systems, addressing critical limitations such as interfacial lattice mismatch and inefficient charge carrier separation. Metal–organic frameworks (MOFs), with their unique structural flexibility, tunable chemistry, and intrinsic semiconductor-like behavior, serve as an ideal platform for designing high-performance homojunction photocatalysts. This review systematically summarizes recent advances in MOFs-based homojunction photocatalysts for sustainable energy production and environmental remediation. We first discuss construction strategies within pristine MOFs, including morphological engineering, hetero-phase engineering, and functional group modification, which enable precise control over electronic and interfacial properties. Next, we comprehensively analyze approaches for fabricating homojunctions from MOFs derivatives, such as hetero-phase engineering, p–n junction engineering, morphological engineering, and doping engineering, highlighting their synergistic effects on charge separation, light absorption, and redox capacity while preserving structural integrity. The applications of these MOFs-based homojunctions are then detailed, showcasing their exceptional performance in photocatalytic hydrogen evolution, CO₂ reduction, and pollutant elimination (e.g., Cr(VI), antibiotics, and volatile organic compounds (VOCs)), outperforming traditional heterojunction systems. Finally, we outline current challenges and future research directions, providing a roadmap for advancing MOFs-based homojunction photocatalysts toward practical implementation. This review aims to serve as a foundational reference for the rational design of next-generation photocatalytic materials for energy and environmental sustainability.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"102 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145283126","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}
引用次数: 0
Influence of Salinization and Freshening on the Retention of Phosphorus in Non-Amended and Al-WTR Amended Bioretention Media 盐碱化和保鲜对未改性和Al-WTR改性生物滞留介质中磷滞留的影响
IF 3 4区 环境科学与生态学
Water, Air, & Soil Pollution Pub Date : 2025-10-11 DOI: 10.1007/s11270-025-08590-y
B. Donado, J. Goor, N. Mocan, A. Pinto, C. E. Robinson
{"title":"Influence of Salinization and Freshening on the Retention of Phosphorus in Non-Amended and Al-WTR Amended Bioretention Media","authors":"B. Donado,&nbsp;J. Goor,&nbsp;N. Mocan,&nbsp;A. Pinto,&nbsp;C. E. Robinson","doi":"10.1007/s11270-025-08590-y","DOIUrl":"10.1007/s11270-025-08590-y","url":null,"abstract":"<div><p>Bioretention systems can remove pollutants including phosphorus (P) from urban stormwater but in cold climates P retention is complicated by factors including seasonal inputs of de-icing road salts (typically sodium chloride [NaCl]). The objective of this study was to evaluate the influence of stormwater with variably high NaCl concentrations on soluble reactive P (SRP) retention in bioretention media considering the effects of salinization and freshening. Column experiments were conducted using three field bioretention media with and without an aluminum water treatment residual (Al-WTR) amendment added. Columns were exposed to synthetic stormwater influent with NaCl concentrations switching between 10 and 1000 mg/L. Overall, there was net SRP release from the columns with no amendment added, whereas Al-WTR amended columns showed net SRP retention. For non-amended columns, effluent SRP concentrations were significantly higher during the freshening periods compared to the salinization (high salt) and regular (low salt) periods with the timing of maximum SRP concentrations delayed relative to the onset of freshening. The high SRP release during freshening periods co-insided with significantly higher effluent and porewater pH (pH &gt; 9). Iron (Fe), manganese (Mn), Al, pH and oxidation–reduction potential (ORP) data provide insight into possible contributing processes but overall the data highlight the complexity of processes controlling SRP retention and release when media is exposed to variable salt concentrations. Finally, the impact of freshening on SRP retention was limited for Al-WTR amended columns. This study provides important new evidence of the impact of seasonally high NaCl stormwater concentrations on SRP retention in bioretention systems.</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":"236 15","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256809","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}
引用次数: 0
Toxicological and Carcinogenic Risk from Fluoride and Arsenic in Drinking Water of the Mezquital Valley, Mexico, Using Monte Carlo Simulation 基于蒙特卡罗模拟的墨西哥Mezquital山谷饮用水中氟化物和砷的毒理学和致癌风险
IF 3 4区 环境科学与生态学
Water, Air, & Soil Pollution Pub Date : 2025-10-11 DOI: 10.1007/s11270-025-08604-9
Roxana Garcia Chávez, José Luis Expósito Castillo, María Vicenta Esteller Alberich, Miguel Ángel Gómez Albores, Reyna María Guadalupe de Fonseca MontesOca, Jorge Paredes Tavares
{"title":"Toxicological and Carcinogenic Risk from Fluoride and Arsenic in Drinking Water of the Mezquital Valley, Mexico, Using Monte Carlo Simulation","authors":"Roxana Garcia Chávez,&nbsp;José Luis Expósito Castillo,&nbsp;María Vicenta Esteller Alberich,&nbsp;Miguel Ángel Gómez Albores,&nbsp;Reyna María Guadalupe de Fonseca MontesOca,&nbsp;Jorge Paredes Tavares","doi":"10.1007/s11270-025-08604-9","DOIUrl":"10.1007/s11270-025-08604-9","url":null,"abstract":"<div><p>Groundwater is a primary source of drinking water in the southern Mezquital Valley, Mexico. This region has documented high rates of dental fluorosis in children and cancer incidence above the national average, likely due to environmental factors. This study assessed the non-carcinogenic and carcinogenic risks associated with groundwater consumption contaminated with fluoride (F⁻) and arsenic (As) using a tiered approach. For this study, 30 samples were collected from wells and springs, and were analyzed for temperature, electrical conductivity, pH, TDS, redox potential, alkalinity, Cl<sup>−</sup>, SO<sub>4</sub><sup>2−</sup>, F<sup>−</sup>, K<sup>+</sup>, Ca<sup>2+</sup>, Mg<sup>2+</sup>, Na<sup>+</sup> and As. Initial exposure points were identified based on Environmental Media Evaluation Guidelines (EMEG), with conservative thresholds set for children at 0.5 mg/L for F⁻ and 0.003 mg/L for As. A deterministic first-tier evaluation calculated the Hazard Quotient (HQ) and Hazard Index (HI) under the \"worst-case scenario,\" revealing HQ &gt; 1 at multiple exposure points, particularly in children. Subsequently, a probabilistic approach using Monte Carlo simulation (10,000 iterations) was applied to incorporate data variability and uncertainty, resulting in probabilistic distributions of Estimated Exposure Dose (EED). The results indicated that 67% of exposure points exceeded safety thresholds for F⁻, while 100% exceeded those for As, confirming unacceptable risk levels, especially for children due to their higher vulnerability. The R code developed, provided as supplementary material, enables replication and adaptation of this methodology to other scenarios. The highest-risk locations identified in this study include wells W-25, W-24, S-3, and W-6, where both fluoride and arsenic concentrations exceeded health-based thresholds in over 75% of probabilistic scenarios. These points supply primarily rural and semi-urban communities with limited access to treated water, heightening the potential public health impact. Given the magnitude of the exceedances—especially for arsenic, which surpassed safe limits at all sampled sites—there is an urgent need to implement affordable treatment technologies, expand groundwater quality monitoring, and integrate these findings into policy reforms aimed at reducing exposure in vulnerable populations.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 15","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256831","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}
引用次数: 0
Hydrogeological Dynamics, Salinization Risk and Ecological Vulnerability in an Arid Inland River Basin 干旱区内陆河流域水文地质动态、盐渍化风险与生态脆弱性
IF 3 4区 环境科学与生态学
Water, Air, & Soil Pollution Pub Date : 2025-10-11 DOI: 10.1007/s11270-025-08665-w
Xu Zhiyuan, Wu Bin, Aishajiang Aili, Abdul Waheed, Yang Yongqiang
{"title":"Hydrogeological Dynamics, Salinization Risk and Ecological Vulnerability in an Arid Inland River Basin","authors":"Xu Zhiyuan,&nbsp;Wu Bin,&nbsp;Aishajiang Aili,&nbsp;Abdul Waheed,&nbsp;Yang Yongqiang","doi":"10.1007/s11270-025-08665-w","DOIUrl":"10.1007/s11270-025-08665-w","url":null,"abstract":"<div><p>Arid inland oases depend on groundwater, yet many basins face co-occurring water scarcity, salinization risk, and ecological vulnerability. We examined the Cherchen River Basin to clarify how aquifer structure, water-table position, and water quality jointly constrain sustainable oasis use. We asked three questions: what are the basin-scale patterns of aquifer architecture and groundwater depth, how do groundwater, irrigation water, and surface water qualities vary spatially, and where salinization is risk most acute. We hypothesized that shallow phreatic levels coincide with salinization hotspots and that proximity to human activities is associated with degraded groundwater quality. Using integrated field surveys, pumping tests, hydrochemistry, geophysics, and GIS mapping, we produced basin-wide layers of groundwater depth and quality and evaluated irrigation suitability against national standards. The aquifer is a thick, single porous system with marked south–north gradients; shallow water tables dominate irrigated zones, indicating high evaporative risk. Groundwater quality is spatially heterogeneous, with localized degradation near human activity; most irrigation sources are usable, although outliers with high salinity and chloride pose soil risks. Surface water quality is generally acceptable but nutrient enrichment warrants attention. The results provide a decision basis for targeted drainage, irrigation efficiency upgrades, and groundwater protection to mitigate salinization and support long-term ecological security in arid inland basins.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 15","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11270-025-08665-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256787","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}
引用次数: 0
Enhancing Sustainability with Macroalgae: Driving Economic Growth and Environmental Stewardship to Achieve the Sustainable Development Goals 利用大型藻类提高可持续性:推动经济增长和环境管理以实现可持续发展目标
IF 3 4区 环境科学与生态学
Water, Air, & Soil Pollution Pub Date : 2025-10-10 DOI: 10.1007/s11270-025-08561-3
Md Nazir, Kushal Roy, Ayan Saha, Dibyendu Saha
{"title":"Enhancing Sustainability with Macroalgae: Driving Economic Growth and Environmental Stewardship to Achieve the Sustainable Development Goals","authors":"Md Nazir,&nbsp;Kushal Roy,&nbsp;Ayan Saha,&nbsp;Dibyendu Saha","doi":"10.1007/s11270-025-08561-3","DOIUrl":"10.1007/s11270-025-08561-3","url":null,"abstract":"<div><p>Macroalgae presents a transformative and sustainable solution to critical environmental challenges, particularly in lignocellulosic biomass valorization, phycoremediation, carbon sequestration, and the production of high-value products. Due to their high polysaccharide content and low lignin levels, macroalgae are ideal for biofuel production, generating biogas and biodiesel, and offer promising potential for bioplastics, supporting sustainable practices. Through biosorption and bioaccumulation, they efficiently remove heavy metals, excess nutrients, and organic pollutants from wastewater, positioning them as a powerful tool for environmental remediation and a renewable industry resource. Cost-effective cultivation systems, especially in shallow ponds, allow natural wastewater treatment without mechanical aeration, amplifying their ecological impact. Additionally, macroalgae's rich bioactive compounds make them invaluable in food, pharmaceuticals, nutraceuticals, and animal feed industries, enhancing economic sustainability. As a renewable resource, macroalgae produce diverse products—biofuels, biochar, glycerol, pigments, nutraceuticals, and pharmaceuticals—that drive environmental sustainability while empowering communities, particularly women in coastal areas, fostering entrepreneurship in green industries. By addressing ecological challenges and opening economic avenues, macroalgae contribute significantly to achieving the United Nations Sustainable Development Goals (SDGs), advancing food security, climate action, biodiversity conservation, sustainable livelihoods, and social equity.</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":"236 15","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256461","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}
引用次数: 0
Spatial and Temporal Variations in Ganga River Water Quality: Insights from GIS Analysis (2017–2021) 恒河水质时空变化:GIS分析的启示(2017-2021)
IF 3 4区 环境科学与生态学
Water, Air, & Soil Pollution Pub Date : 2025-10-10 DOI: 10.1007/s11270-025-08677-6
Bhupendra P. Singh, Priyanka Khichi, Preeti Sai, Sandeep Kumar Gautam, Seema Chahal, Jyotsana Gupta
{"title":"Spatial and Temporal Variations in Ganga River Water Quality: Insights from GIS Analysis (2017–2021)","authors":"Bhupendra P. Singh,&nbsp;Priyanka Khichi,&nbsp;Preeti Sai,&nbsp;Sandeep Kumar Gautam,&nbsp;Seema Chahal,&nbsp;Jyotsana Gupta","doi":"10.1007/s11270-025-08677-6","DOIUrl":"10.1007/s11270-025-08677-6","url":null,"abstract":"<div><p>The Ganga River serves as a vital source of fresh water and holds significant cultural and religious value in India, however, pollution has severely degraded the water quality, posing threats to human health and ecological integrity. This study analyzes water quality trends in the Ganga River from 2017 to 2021, focusing on Uttar Pradesh, India, and evaluates the impact of the COVID-19 pandemic on water quality parameters. Results indicated maximum fluctuations in temperature, dissolved oxygen, pH, biochemical oxygen demand (BOD), and nitrate levels were reported 29.5-34ºc, 11–12.5 mg/L, 8.6–9, 560–2200 (µmho/cm), 5.3–9.8 mg/L, 1.83–9.4 (mg/L) influenced by anthropogenic activities and natural environmental dynamics. The correlation analysis highlights significant relationships among water quality parameters. Strong significant positive correlations were observed between pH with fecal coliform (0.73) and total coliform (0.80), whereas a strong negative correlation was calculated between DO with fecal coliform (-.83) and total coliform (0.90). In addition, spatial analysis using GIS underscores the heterogeneous distribution of water quality parameters across the Ganga River basin, emphasizing more pollutant loads downstream which needs targeted interventions to mitigate pollution sources and ensure sustainable water management practices. This study contributes to bridging the existing knowledge gap regarding the dynamic evolution of water quality in the Ganga River, facilitating informed decision-making for policy formulation and implementation to safeguard water resources for future generations.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 15","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256460","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}
引用次数: 0
Graphene Oxide Quantum Dots Enhance Highly Efficient Pyrene Degradation by Shinella sp. B6 氧化石墨烯量子点增强Shinella sp. B6高效降解芘
IF 3 4区 环境科学与生态学
Water, Air, & Soil Pollution Pub Date : 2025-10-10 DOI: 10.1007/s11270-025-08687-4
Weixi Shi, Changmin Peng, Qingling Wang, Xiqian Zhang, Wuxing Liu, Changxun Dong
{"title":"Graphene Oxide Quantum Dots Enhance Highly Efficient Pyrene Degradation by Shinella sp. B6","authors":"Weixi Shi,&nbsp;Changmin Peng,&nbsp;Qingling Wang,&nbsp;Xiqian Zhang,&nbsp;Wuxing Liu,&nbsp;Changxun Dong","doi":"10.1007/s11270-025-08687-4","DOIUrl":"10.1007/s11270-025-08687-4","url":null,"abstract":"<div><p>Bacteria play a crucial role in degrading pyrene in various environments; however, challenges such as selective proliferation and low efficiency hinder their practical applications. To address these limitations, this study investigated the effect of graphene oxide quantum dots (GOQDs) on <i>Shinella</i> sp. B6, a bacterium capable of metabolizing various exogenous aromatic compounds as carbon sources. GOQDs exhibited superior biocompatibility with <i>Shinella</i> sp. B6, increasing culture's optical density at 600 nm (OD<sub>600</sub>) from 0.027 to 0.364, and achieving a 73.5% degradation rate of pyrene in 60 h, a 3.73-fold improvement in efficiency compared with the single bacterium. GOQDs autonomously identified bacteria, leading to fluorescence quenching and subsequent recovery post-degradation. The disappearance of the infrared spectral peak of GOQDs, along with reductions in the ultraviolet absorption of pyrene, indirect antennae and confocal laser scanning fluorescence microscopy, confirms that GOQDs enhanced both biocompatibility and pyrene degradation efficiency. These findings enhance understanding of the interactions among quantum dots, organic pollutants, and degrading bacteria while offering insights for effective strategies to remove polycyclic aromatic hydrocarbon pollutants using bacteria augmented with quantum dot materials.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 15","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256780","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}
引用次数: 0
Nano-La2O3 undermines honeybee cognition by invading the brain and accelerating neuronal apoptosis 纳米la2o3通过入侵大脑和加速神经元凋亡来破坏蜜蜂的认知能力
IF 8.131 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2025-10-10 DOI: 10.1039/d5en00105f
Wangjiang Feng, Yuan Ge, Patricia A. Holden, Yongxiang Zhang, Pingli Dai, Yong-Jun Liu
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