Chemosphere最新文献

{"title":"Occurrence of legacy, emerging, and novel brominated and chlorinated flame retardants in eggs of Black Stork (Ciconia nigra) from Eastern Europe","authors":"Dzintars Zacs ,&nbsp;Maris Strazds ,&nbsp;Ingus Perkons ,&nbsp;Vadims Bartkevics","doi":"10.1016/j.chemosphere.2026.144885","DOIUrl":"10.1016/j.chemosphere.2026.144885","url":null,"abstract":"<div><div>This study presented the occurrence of halogenated flame retardants (HFRs) in the eggs of the Black Stork (<em>Ciconia nigra</em>). Sixty egg samples were analyzed for the presence of polybrominated diphenyl ethers (PBDEs), hexabromocyclododecanes (HBCDDs), emerging brominated flame retardants (EBFRs) and dechlorane-related compounds (DRCs). The total selected HFR concentrations (∑_HFRs) in analyzed samples ranged from 1.04 to 44.5 ng g⁻¹ wet weight (w.w.), reaching mean and median values of 7.76 and 4.03 ng g⁻¹ w.w., respectively. The median contributions of PBDEs, DRCs, and HBCDDs to the total HFR composition were similar, making up approximately 25% to 40% of the total ∑_HFR profile, whereas EBFRs represented the minor category among the selected HFRs. The ratio between different HFR group profiles and contributions to the total HFR burden in the whole set of samples varied significantly, indicating different contamination sources or environmental behaviors. The observed HFR concentrations in Black Stork eggs were comparable to those found in White Stork (<em>Ciconia ciconia</em>) eggs from other regions of Europe. Statistical treatment of the datasets didn't reveal any correlations between the biological parameters of the analyzed eggs and levels of selected organohalogens.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"397 ","pages":"Article 144885"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147313130","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 tire and road wear particles in artificial water bodies in Japan","authors":"Kimleng Keang,&nbsp;Shuo Cheng,&nbsp;Snehal Wasnik,&nbsp;Haoge Zhang,&nbsp;Jeffrey S. Cross","doi":"10.1016/j.chemosphere.2026.144869","DOIUrl":"10.1016/j.chemosphere.2026.144869","url":null,"abstract":"<div><div>Tire and road wear particles (TRWPs) are a major source of microplastic pollution in urban environments. While research has largely focused on natural aquatic systems, artificial urban water bodies in Japan remain understudied despite their high potential to accumulate these pollutants. This study provides a detailed evaluation of TRWPs in artificial water bodies across four major regions (Kinki, Chukyo, Kitakyushu/Fukuoka, and Sapporo) in Japan using microscopy, SEM-EDX, and Raman spectroscopy. TRWPs were characterized by distinctive morphologies, elemental signatures (Zn, S, Si, and C), and Raman spectral features, including carbon black and styrene-butadiene rubber (SBR) markers. Quantitative analysis revealed spatial variability, with TRWP concentrations ranging from 291.2 to 489.9 particles/L. The highest abundance was recorded in Sorakuen (489.9 particles/L), while the lowest was observed in Tsurami (291.2 particles/L). Raman spectra from sites like Tsuruma (Nagoya) and Maizuru (Fukuoka) indicated the presence of fresher TRWPs, whereas particles from Shonai (Nagoya) and Maruyama (Kyoto) exhibited signs of advanced weathering. SEM imaging further supported these findings, highlighting extensive surface degradation particularly in high-traffic locations. These artificial systems function both as semi-enclosed ecological habitats and as potential accumulation zones for TRWPs, where prolonged retention promotes particle buildup and transformation. While the findings indicate that such environments can retain substantial TRWP loads, further comparative research is needed to evaluate their relative role within broader urban aquatic systems.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"397 ","pages":"Article 144869"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146260390","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":"Corrigendum to ‘Modelling and parameter estimation of diethyl phthalate partitioning behaviour on glass and aluminum surfaces’ [Chemosphere 285 (2021) 131414]","authors":"Simoní Da Ros ,&nbsp;Katherine Curran","doi":"10.1016/j.chemosphere.2026.144843","DOIUrl":"10.1016/j.chemosphere.2026.144843","url":null,"abstract":"","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"396 ","pages":"Article 144843"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146159552","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":"Contamination of an Afro-tropical river with nicotine from tobacco farming and its implications for ecological and human health","authors":"Emmanuel Cishibanji ,&nbsp;Elias Chirwa ,&nbsp;Rodgers Makwinja ,&nbsp;Benjamin N. Kondowe ,&nbsp;Sébastien Baekelandt ,&nbsp;Fabrice Muvundja ,&nbsp;Godwell Nhamo ,&nbsp;Bossissi Nkuba","doi":"10.1016/j.chemosphere.2026.144876","DOIUrl":"10.1016/j.chemosphere.2026.144876","url":null,"abstract":"<div><div>Tobacco cultivation is associated with ecological and human health risks due to nicotine, an emerging aquatic contaminant. In tobacco-growing areas, nicotine can enter aquatic ecosystems through plant secretions and tobacco stalks used as organic fertilizer. Using a modified QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) extraction method and liquid chromatography-tandem mass spectrometry (LC-MS/MS), this study aimed to <em>(i)</em> quantify nicotine residues in the Bua River, which flows through a central tobacco-growing region in Malawi – the country with the highest proportion of arable land dedicated to tobacco farming globally – and <em>(ii)</em> assess ecological risks in water and sediment, as well as potential human health risks from contaminated fish. The highest geometric mean concentrations were detected in fish tissues, particularly <em>Clarias gariepinus</em> (10.29 ± 2.09 μg/kg) compared to <em>Oreochromis shiranus</em> (1.35 ± 6.79 μg/kg), sediment (0.93 ± 3.54 μg/kg), and surface water (0.67 ± 1.96 μg/L). Nicotine levels were associated with several water quality parameters. Findings revealed that nicotine residues occur at ecologically concerning levels, posing high ecological risks to freshwater invertebrates and fish populations. Although nicotine levels in fish muscle do not currently pose human health risks under prevailing consumption rates, cumulative exposure from tobacco farming activities may elevate risks. This study provides evidence of substantial ecological risks that may disrupt trophic balances and alter aquatic communities. It recommends regular monitoring to assess long-term impacts, enable timely ecological responses, and minimize cumulative risks.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"397 ","pages":"Article 144876"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146260396","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":"Adaptive learning rate optimization in deep recurrent architectures for precision PM2.5 forecasting under climate variability","authors":"Caner Erden","doi":"10.1016/j.chemosphere.2026.144875","DOIUrl":"10.1016/j.chemosphere.2026.144875","url":null,"abstract":"<div><div>Accurate forecasting of fine particulate matter (PM_{2.5}) is critical for safeguarding public health; however, conventional deep learning models frequently encounter convergence instability when exposed to highly volatile meteorological inputs. This study evaluates advanced learning rate scheduling strategies to improve long short-term memory (LSTM) and gated recurrent unit (GRU) performance using Atlanta's 2023–2025 air quality and meteorological data. The research compares polynomial, piecewise constant, and cosine decay schedules, revealing architecture-specific sensitivities: the analysis identifies that LSTM achieved optimal stability with piecewise constant decay (MAE = 0.9255 <span><math><mrow><mi>μ</mi><mi>g</mi><mo>/</mo><msup><mi>m</mi><mn>3</mn></msup></mrow></math></span>), whereas GRU performed best under polynomial decay (MAE = 1.1092 <span><math><mrow><mi>μ</mi><mi>g</mi><mo>/</mo><msup><mi>m</mi><mn>3</mn></msup></mrow></math></span>). Although Cosine Decay reduces peak errors in isolated instances, it demonstrates insufficient robustness against stochastic gradient noise. The optimized framework yields exceptional predictive fidelity, with the GRU and LSTM models attaining R² values of 0.9495 and 0.9443, respectively. Beyond methodological advances, this study establishes a reliable computational baseline for site-specific temporal air quality monitoring, offering actionable insights into the interplay between anthropogenic emissions and climate-driven volatility. By supporting industrial emissions management and evidence-based policy, this study contributes to the broader goals of mitigating air pollution in a changing climate and advancing ecological co-governance.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"397 ","pages":"Article 144875"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146260411","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":"Advanced vitrification and selective partitioning strategies for sustainable high-level radioactive liquid waste management","authors":"Jayaprakasam Selvakumar ,&nbsp;Gattu Suneel ,&nbsp;Chetan Parkash Kaushik","doi":"10.1016/j.chemosphere.2026.144858","DOIUrl":"10.1016/j.chemosphere.2026.144858","url":null,"abstract":"<div><div>Managing high-level radioactive liquid waste (HLW) from spent nuclear fuel reprocessing remains a significant challenge in the nuclear fuel cycle. Conventional vitrification into glass matrices for geological disposal, although technologically mature, represents a largely one-dimensional approach that permanently immobilizes radionuclides, including isotopes valuable for medical, industrial, and space applications. This review examines selective vitrification and strategic radionuclide recovery as an integrated framework for sustainable HLW management. The approach combines advanced vitrification technologies—such as Joule-heated ceramic melters, cold crucible induction melters, induction-heated metallic melters, and in-can melter—with targeted partitioning processes including UREX+, DIAMEX-SANEX, and extraction chromatography. These schemes achieve decontamination factors exceeding 10³ and enable waste loadings of 15-30 wt% in tailored glass and glass-ceramic waste forms. Selective recovery of key radionuclides offers significant reuse potential, including Sr-90 and Cs-137 for irradiation applications and Am-241 for radioisotope power systems. Importantly, removal of heat-generating nuclides before vitrification can reduce repository thermal loads by 30-40% and overall waste volumes by ∼25%. This strategy marks a shift from non-retrievable disposal to resource recovery, aligning HLW management with circular-economy principles and long-term sustainability goals.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"397 ","pages":"Article 144858"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147319199","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":"Closed-loop recycling: Could Denmark produce clinker from end-of-life concrete at scale?","authors":"Arvind Chauhan ,&nbsp;Teklit Ambaye ,&nbsp;Wolfgang Kunther ,&nbsp;Ana Teresa Lima","doi":"10.1016/j.chemosphere.2026.144844","DOIUrl":"10.1016/j.chemosphere.2026.144844","url":null,"abstract":"<div><div>Circular economy (CE), particularly closed-loop recycling, has been identified as a strategy to enhance the sustainability of the cement industry. The chemical composition of the raw meal – the raw materials used to produce cement – is a limiting factor in cement manufacturing, particularly for CE and end-of-life (EOL) concrete recycling. Cement closed-loop recycling entails retrieving ultrafine concrete waste particles (UFCWP, particle fraction between 0 and 0.25 mm) from EOL concrete using advanced recycling technologies that could replace clinker raw meal in cement clinker manufacturing. Utilizing a combined conceptual stoichiometry mass balance model with material flow analysis for the first time, this study demonstrates the chemical limitations of substituting raw materials with ultrafine EOL concrete in a closed-loop recycling process within the Danish clinker production. The main results indicate that a maximum of 11.76% UFCWP can be used to replace conventional raw meal in Danish cement clinker production, resulting in a 10% reduction in global warming potential compared to conventional cement clinker production. For this, we would require three times more EOL CEM I concrete in Denmark than is currently produced (approx 1.2 Mton). This study highlights the mismatch between current cement demand and EOL concrete for closed-loop recycling in Denmark.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"396 ","pages":"Article 144844"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171282","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":"Drastic changes in carbon monoxide pollution in rural India (2000–2019) and its CMIP6 model future (2015–2100) projections","authors":"Mansi Pathak,&nbsp;Jayanarayanan Kuttippurath","doi":"10.1016/j.chemosphere.2025.144814","DOIUrl":"10.1016/j.chemosphere.2025.144814","url":null,"abstract":"<div><div>Carbon Monoxide (CO) is a reactive gas that plays a crucial role in the atmospheric carbon cycle. It has significant implications for human health, manifesting in both short and long-term effects such as fatigue, headaches, nausea and confusion, as well as impacts on ecosystems and climate. Here, we investigate the long-term changes in CO levels, utilising data from ground-based, satellite, reanalysis, emission inventory and climate model projections for the period 2000–2019, in rural India. This investigation reveals that rural regions of Indo-Gangetic Plain (IGP), North East India (NEI) and Central India (CI) exhibit elevated CO levels ranging from 150 to 400 ppbv. The highest levels are observed during the months followed by agricultural waste burning (AWB) in January–March in rural IGP (200 ppbv) and NEI (275 ppbv), but the rural Hilly Regions (HR) maintain the lowest CO concentrations in India throughout the year. We find a reversal in CO trend from 2006 onwards, with a significant decrease of −1.25 ppbv/yr throughout rural India in 2006–2019. This decline in CO, despite the rise in emissions from all sources, except road transport, reveals its role in regulating the CO pollution. The engagement and enforcement of proper regulations (e.g. implementation of stringent Bharat Stage standards) also might have contributed to this reduction. Future projections across all Shared Socioeconomic Pathways (SSP) scenarios, with the exception of SSP3-7.0, indicate a substantial decrease in CO pollution in rural India by the end of 21st century. The decrease in CO levels in rural India signifies improvement in air quality resulting from government initiatives, including the Bharat Stage regulations, Pradhan Mantri Ujjwala Yojana and the promotion of agricultural mechanisation for in-situ management of crop residue. This study, therefore, reiterates the significance of policies and their prompt execution in regulating CO pollution to enhance air quality and safeguard public health and environment.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"394 ","pages":"Article 144814"},"PeriodicalIF":8.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145829304","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":"Polyphosphate-mediated heavy metal sequestration in non-genetically modified bacteria: mechanisms and biotechnological prospects","authors":"Eduard Villagrasa ,&nbsp;Neus Ferrer-Miralles ,&nbsp;Alejandro Sánchez-Chardi ,&nbsp;Antonio Solé","doi":"10.1016/j.chemosphere.2026.144828","DOIUrl":"10.1016/j.chemosphere.2026.144828","url":null,"abstract":"<div><div>Human activities are increasing the bioavailability of metals and metalloids, creating serious environmental and health risks. Specifically, there is significant ecotoxicological interest in metalloid (arsenic (As)) and six heavy metals (HMs; cadmium (Cd), chromium (Cr), copper (Cu), lead (Pb), mercury (Hg), and zinc (Zn)) due to their worldwide distribution in all habitats and highly toxic effects on terrestrial and aquatic biota. Understanding toxicity and persistence of HMs is essential for developing effective bioremediation strategies. Bacteria and archaea have evolved diverse cellular adaptations to resist HM toxicity, employing ATP-dependent (active) and ATP-independent (passive) substrate-specific mechanisms. Among them, bioaccumulation via polyphosphate (polyP) inclusions (intracellular) and/or granules (extracellular) has emerged as a central detoxification strategy. Cation-polyP complexes within bacterial structures facilitate metal immobilization, offering a viable approach for reducing HM bioavailability and cellular toxicity. Here, we synthesize the current knowledge on non-genetically modified HM-resistant bacteria, emphasizing bioaccumulation mechanisms mediated by polyP. To date, the role of polyP-mediated bioaccumulation in wild-type bacterial systems remains underexplored and lacks a comprehensive synthesis in the literature. Specifically, we explore (i) the primary bacterial strategies for HM sequestration, (ii) the chronological development of a global understanding of bacterial HM polyP-mediated bioaccumulation, and (iii) emerging biotechnological applications and future perspectives for implementing this strategy in contaminated environments. In contrast to earlier reviews, this work focuses on wild-type, non-genetically modified bacteria and emphasizes the role of polyP-mediated HM bioaccumulation as a resistance mechanism in natural habitats, which can be used for biotechnological applications in resource recovery and HM bioremediation<strong>.</strong></div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"395 ","pages":"Article 144828"},"PeriodicalIF":8.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923970","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":"Sustainable membranes from industrial waste valorization for microbial electrochemical desalination systems","authors":"Himanshi Sen ,&nbsp;Monika Sogani ,&nbsp;Sovik Das ,&nbsp;Karishma Maheshwari","doi":"10.1016/j.chemosphere.2025.144808","DOIUrl":"10.1016/j.chemosphere.2025.144808","url":null,"abstract":"<div><div>Freshwater scarcity and the environmental burden of reverse osmosis (RO) reject streams demand sustainable desalination alternatives. Microbial desalination cells (MDCs), integrated with bioelectrochemical processes, have emerged as eco-friendly platforms for simultaneous wastewater treatment, ion removal, and energy recovery. However, their reliance on costly, ion-exchange membranes limits scalability. This review critically examines low-cost waste-valorized membranes fabricated from agricultural residues, polymeric wastes, ceramics, and industrial byproducts as green substitutes for conventional membranes in MDCs. This review critically discusses the past progress of low-cost waste additives to multifunctional, biofunctionalized membranes with superior ion transport, antifouling, and self-cleaning capabilities. The major focus of the paper is on strategies such as graphene oxide doping, enzyme immobilization, and magnetic biochar integration that can enhance performance, conductivity, and fouling resistance, alongside reducing cost and carbon dioxide footprint. Based on the in-depth analysis, a comprehensive roadmap is proposed encompassing feedstock standardization, green fabrication, novel manufacturing techniques including digital process optimization, techno-economic analysis, integrated MDC-RO systems, and end-of-life recycling, aimed at enabling scalable, decentralized, and cost-effective desalination solutions. Further, the integration of waste-derived membranes into MDC-RO hybrids is presented as a viable pathway to increase water recovery, reduce fouling, and lower energy demand. This work underscores the potential of waste-valorized membranes as next-generation sustainable solutions for water-energy nexus challenges.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"394 ","pages":"Article 144808"},"PeriodicalIF":8.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836581","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}