环境科学与生态学最新文献

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Non-Linear Influence of Reservoir Initial Condition on Flood Reduction 水库初始条件对减洪的非线性影响
IF 3 3区 环境科学与生态学
Journal of Flood Risk Management Pub Date : 2025-10-20 DOI: 10.1111/jfr3.70142
Giulia Evangelista, Miriam Bertola, Günter Blöschl, Pierluigi Claps
{"title":"Non-Linear Influence of Reservoir Initial Condition on Flood Reduction","authors":"Giulia Evangelista,&nbsp;Miriam Bertola,&nbsp;Günter Blöschl,&nbsp;Pierluigi Claps","doi":"10.1111/jfr3.70142","DOIUrl":"https://doi.org/10.1111/jfr3.70142","url":null,"abstract":"<p>Reservoirs play a crucial role in modifying natural flow regimes and mitigating flood peaks, yet their effectiveness depends heavily on operational strategies, particularly the initial storage level at the onset of a flood event. This study investigates, for the first time, the non-linear effects of reduced initial storage on the relationship between flood peak attenuation efficiency and flood return period for about 250 large dams in Italy. We estimate flood hydrographs via a simplified hydrological model and apply full hydraulic routing under different scenarios of initial reservoir storage, informed by historical reservoir time series and regional flood seasonality. Our findings reveal that flood peak attenuation is highly sensitive to the initial storage level, with dam performance deteriorating sharply as flood return periods increase, especially when initial storage is high. Seven distinct classes of dams are identified based on their flood attenuation capacity relative to flood severity, highlighting non-linear and threshold effects that are often overlooked in regional dam safety assessments. Notably, the commonly assumed full-reservoir condition yields overly conservative estimates: under this assumption, approximately 20% of the dams reach their maximum allowed water level for return periods of 100 years or less. This national-scale analysis provides new insights into regional differences in reservoir operation, particularly between hydropower-oriented dams in the Alps and water supply reservoirs in southern Italy. By explicitly quantifying how reduced initial storage can enhance flood mitigation, the study offers practical recommendations for optimizing reservoir operations under current and future climatic conditions.</p>","PeriodicalId":49294,"journal":{"name":"Journal of Flood Risk Management","volume":"18 4","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jfr3.70142","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145317620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Climate-Driven Increase in Transmission of a Wildlife Malaria Parasite Over the Last Quarter Century 过去四分之一世纪气候驱动的野生疟疾寄生虫传播增加
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-10-20 DOI: 10.1111/gcb.70550
Angela Nicole Theodosopoulos, Fredrik Andreasson, Jane Jönsson, Johan Nilsson, Andreas Nord, Lars Råberg, Martin Stjernman, Ana Sofía Torres Lara, Jan-Åke Nilsson, Olof Hellgren
{"title":"Climate-Driven Increase in Transmission of a Wildlife Malaria Parasite Over the Last Quarter Century","authors":"Angela Nicole Theodosopoulos,&nbsp;Fredrik Andreasson,&nbsp;Jane Jönsson,&nbsp;Johan Nilsson,&nbsp;Andreas Nord,&nbsp;Lars Råberg,&nbsp;Martin Stjernman,&nbsp;Ana Sofía Torres Lara,&nbsp;Jan-Åke Nilsson,&nbsp;Olof Hellgren","doi":"10.1111/gcb.70550","DOIUrl":"https://doi.org/10.1111/gcb.70550","url":null,"abstract":"<p>Climate warming is expected to influence the prevalence of vector-transmitted parasites. Understanding the extent to which this is ongoing, or has already occurred, requires empirical data from populations monitored over long periods of time, but these studies are sparse. Further, vector-disease research involving human health is often influenced by disease control efforts that supersede natural trends. By screening for malaria parasite infections in a wild population of blue tits (<i>Cyanistes caeruleus</i>) in Northern Europe, over a 26-year period, we tested whether prevalence and transmission changes were climate-driven. We found that all three malaria parasite genera occurring in blue tits (<i>Haemoproteus</i>, <i>Plasmodium</i>, and <i>Leucocytozoon</i>) have increased significantly in their prevalence and transmission over time. The most common parasite in the study, <i>Haemoproteus majoris</i>, increased in prevalence from 47% (1996) to 92% (2021), and this was a direct consequence of warmer temperatures elevating transmission. Climate window analyses revealed that elevated temperatures between May 9th and June 24th, a time period that overlaps with the host nestling period, were strongly positively correlated with <i>H. majoris</i> transmission in one-year-old birds. A warming climate during this narrow timeframe has had a demonstrable impact on parasite transmission, and this has favored an increase in the prevalence of parasites in wild birds in a temperate region of Europe. While more challenging to measure, similar implications of climate warming on human vector-disease systems might be occurring. It is therefore critical that we understand what specific aspects of malaria parasite development and transmission are most influenced by climate warming, for the benefit of human and wildlife health.</p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 10","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70550","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145317798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Salinity dynamics in the Sundarbans of Bangladesh: influence of climate, freshwater inflow, and sea level changes 孟加拉国孙德尔本斯的盐度动态:气候、淡水流入和海平面变化的影响
IF 3 4区 环境科学与生态学
Environmental Monitoring and Assessment Pub Date : 2025-10-20 DOI: 10.1007/s10661-025-14667-2
Shahriar Wahid, Mohammed Mainuddin, Francis Chiew, Fazlul Karim, Shaikh Nahiduzzaman, Rubayat Alam, Md. Raqubul Hasib
{"title":"Salinity dynamics in the Sundarbans of Bangladesh: influence of climate, freshwater inflow, and sea level changes","authors":"Shahriar Wahid,&nbsp;Mohammed Mainuddin,&nbsp;Francis Chiew,&nbsp;Fazlul Karim,&nbsp;Shaikh Nahiduzzaman,&nbsp;Rubayat Alam,&nbsp;Md. Raqubul Hasib","doi":"10.1007/s10661-025-14667-2","DOIUrl":"10.1007/s10661-025-14667-2","url":null,"abstract":"<div><p>The Sundarbans mangrove ecosystem, the world’s largest contiguous mangrove forest, is under pressure from changing salinity due to climate change, reduced freshwater input from upstream rivers, and tidal dynamics in the Bay of Bengal. Despite its ecological and socio-economic significance, previous studies have not provided a comprehensive, location-specific assessment of salinity that explicitly links spatial heterogeneity with hydroclimatic drivers. This study synthesised and analysed the best available data in the Bangladesh Sundarbans over the 26 years to quantify the characteristics, trends, and interrelationships of these variables spatially and temporally. The results reveal that salinity has been consistently higher in the western part of the Sundarbans, and extreme salinity levels have increased since 2010. There has been a statistically significant decrease in the freshwater inflow from the Ganges through the Gorai River (at the Gorai railway bridge location) since the early 1980s, which has led to increased downstream salinity. Strong statistical correlations enabled robust predictions of salinity as a function of rainfall and temperature. A rising water level trend at Hiron Point is attributed to the rise in sea levels. The absence of long-term measurement data prevents the exploration of salinity dynamics in the numerous creeks that crisscross the mangrove ecosystem. It is crucial to establish continuous monitoring and assessment to better understand and manage the impacts of climate change and development on the Bangladesh Sundarbans and similar coastal ecosystems worldwide.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 11","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10661-025-14667-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316432","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
Unravelling decades of habitat dynamics in protected areas: A hierarchical approach applied to the Gran Paradiso National Park (NW Italy) 揭示保护区几十年的栖息地动态:一种应用于大天堂国家公园(意大利西北部)的分层方法
IF 3 4区 环境科学与生态学
Environmental Monitoring and Assessment Pub Date : 2025-10-20 DOI: 10.1007/s10661-025-14669-0
Chiara Richiardi, Consolata Siniscalco, Matteo Garbarino, Maria Adamo
{"title":"Unravelling decades of habitat dynamics in protected areas: A hierarchical approach applied to the Gran Paradiso National Park (NW Italy)","authors":"Chiara Richiardi,&nbsp;Consolata Siniscalco,&nbsp;Matteo Garbarino,&nbsp;Maria Adamo","doi":"10.1007/s10661-025-14669-0","DOIUrl":"10.1007/s10661-025-14669-0","url":null,"abstract":"<div><p>Habitat loss is the main threat to biodiversity at a global level, making habitat mapping an essential tool for the management of protected areas and for the conservation and monitoring, in line with Directive 92/43/EEC. Traditional mapping methods are resource-intensive, while remote sensing approaches depend on the availability of ground truth datasets. In this context, this study presents a novel framework for time series habitat classification. The approach leverages a single pre-existing habitat cartography and a limited set of ancillary data to derive a retrospective training dataset. The method was applied to analyse 39 years (1985–2023) of habitat and land cover changes in Gran Paradiso National Park (NW Italy). Annual seasonal composite images were generated for the growing and senescence seasons using an enhanced Best Available Pixel approach. Annually derived training datasets were used to classify hierarchically land cover and habitats via ensemble random forest models. Validation against high-resolution maps demonstrated the robustness of the approach. The method allows for long-term habitat monitoring even in data-sparse environments. The results reveal high stability of land cover (88% of the area) and significant trends in some vegetation types, including a decline in grasslands (− 10 ha year<sup>−1</sup>) and the expansion of shrublands (+ 10 ha year<sup>−1</sup>). The method proved to be reliable for large patches, less so for ecotones. Future research should explore its application across different landscapes. This work underscores the potential of remote sensing for long-term habitat monitoring, providing a cost-effective solution to support biodiversity preservation efforts.</p></div>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 11","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10661-025-14669-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316367","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
Adsorptive elimination of fluoride ions from water: kinetic and thermodynamic assessment of Chara vulgaris biomass 吸附消除水中氟离子:Chara vulgaris生物质的动力学和热力学评价
IF 3 4区 环境科学与生态学
Environmental Monitoring and Assessment Pub Date : 2025-10-20 DOI: 10.1007/s10661-025-14718-8
Fuad Ameen, Dabeer Hussain Mir, Ashiwin Vadiveloo, Jameelah Alabdulatif, Ibrahim Arif
{"title":"Adsorptive elimination of fluoride ions from water: kinetic and thermodynamic assessment of Chara vulgaris biomass","authors":"Fuad Ameen,&nbsp;Dabeer Hussain Mir,&nbsp;Ashiwin Vadiveloo,&nbsp;Jameelah Alabdulatif,&nbsp;Ibrahim Arif","doi":"10.1007/s10661-025-14718-8","DOIUrl":"10.1007/s10661-025-14718-8","url":null,"abstract":"<div><p>Fluoride ion contamination in drinking water poses a considerable environmental and health risk. Thus, novel sustainable and economic removal techniques are needed. This study examined the biosorption of fluoride ions from aqueous solutions utilizing the dead biomass of the green alga <i>Chara vulgaris</i> as an adsorbent. First, the biomass was studied for its structural and functional characteristics using Fourier transform infrared spectroscopy (<i>FTIR</i>), scanning electron microscopy (<i>SEM</i>), transmission electron microscopy (<i>TEM</i>), X-ray diffraction (<i>XRD</i>), and Brunauer–Emmett–Teller (<i>BET</i>) techniques. The optimal conditions for the biosorption were studied experimentally. Dead <i>Chara vulgaris</i> biomass achieved fluoride removal efficiency of 91% under optimal conditions (pH 2, 35 °C, 0.4 g adsorbent dose, and 300 min contact time). The surface characteristics and functional groups of the algal biomass were assessed to enable effective fluoride adsorption via a spontaneous, exothermic mechanism. The examination of fluoride biosorption indicated that the process was best explained by a Langmuir model with a high fit (<i>R</i><sup>2</sup> = 0.99). It shows that fluoride adheres to the surface in a monolayer. The kinetics of the process followed the pseudo-second-order model (<i>R</i><sup>2</sup> = 0.98), with the internal movement of particles being of lesser significance. The findings indicate that dead <i>Chara vulgaris</i> biomass can be used as an efficient material for fluoride removal, making it highly beneficial for purifying natural water and treating industrial effluent.</p></div>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 11","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316431","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
Exploring the Toxicological Impact of 6PPDQ Exposure on Psoriasis through Network Toxicology, Machine Learning, and Multidimensional Bioinformatics Analysis 通过网络毒理学、机器学习和多维生物信息学分析探索6PPDQ暴露对银屑病的毒理学影响
IF 8.9 2区 环境科学与生态学
Environmental Pollution Pub Date : 2025-10-19 DOI: 10.1016/j.envpol.2025.127291
Xulei Zuo, Yuxi Zhang, Xiaoyu Hou, Cong Zhang, Juan Zhang
{"title":"Exploring the Toxicological Impact of 6PPDQ Exposure on Psoriasis through Network Toxicology, Machine Learning, and Multidimensional Bioinformatics Analysis","authors":"Xulei Zuo, Yuxi Zhang, Xiaoyu Hou, Cong Zhang, Juan Zhang","doi":"10.1016/j.envpol.2025.127291","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.127291","url":null,"abstract":"N-(1,3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine quinone (6PPDQ), a derivative of the tire antioxidant 6-PPD, has recently emerged as an environmental contaminant of concern. This study employed a network toxicology framework to explore its potential role in psoriasis. Through in silico target prediction and disease database integration, 290 overlapping 6PPDQ–psoriasis targets were identified. Gene Ontology and KEGG pathway analyses implicated MAPK and TNF signaling, along with the IL-23/Th17 inflammatory axis—key pathways in psoriasis pathogenesis. Machine learning (LASSO and SVM-RFE) prioritized four core genes (CD3D, IRF7, NR3C1, HDAC1). These genes displayed markedly altered expression in psoriatic transcriptomes (GSE13355) and demonstrated strong diagnostic performance (AUC &gt; 0.99). Immune infiltration analysis (ssGSEA) and single-cell RNA-seq data linked these genes to pro-inflammatory T-cells, dendritic cells (DCs), and keratinocytes in psoriatic lesions. Molecular docking revealed high-affinity binding of 6PPDQ to all four proteins, with NR3C1 exhibiting the strongest interaction (−8.1 kcal/mol). Molecular dynamics simulations confirmed the stability of this complex. An adverse outcome pathway model was established, linking 6PPDQ exposure to immune dysregulation in psoriasis via these core genes. Collectively, the findings suggest that 6PPDQ may exacerbate psoriasis by disrupting key immune-inflammatory regulators—particularly NR3C1—thereby offering mechanistic insights into how environmental pollutants contribute to disease progression.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"70 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145314725","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
“Visible hand” and “invisible hand”: The impact of market-driven environmental regulation on corporate carbon information disclosure “看得见的手”与“看不见的手”:市场环境规制对企业碳信息披露的影响
IF 11.1 1区 环境科学与生态学
Journal of Cleaner Production Pub Date : 2025-10-19 DOI: 10.1016/j.jclepro.2025.146885
Ying Qu, Yaodong Cang
{"title":"“Visible hand” and “invisible hand”: The impact of market-driven environmental regulation on corporate carbon information disclosure","authors":"Ying Qu, Yaodong Cang","doi":"10.1016/j.jclepro.2025.146885","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.146885","url":null,"abstract":"In theory, carbon information disclosure (CID) is meant to enhance corporate economic returns during carbon reduction. Unfortunately, in China, CID currently remains insufficient under mandatory-driven environment regulations. In contrast, as a market-driven environment regulation, carbon emission trading (CET) has proven effective in improving both corporate decarbonization outcomes and economic performance. However, whether CET can help promote CID currently remains unclear. Taking A-share listed enterprises in China as research samples, using data spanning the period from 2011 to 2022, this study estimates the impact of CET on CID through the difference-in-differences (DID) method. The findings reveal that: (1) CET significantly enhances corporate CID, both in terms of carbon information disclosure behavior (CIDB) and carbon information disclosure quality (CIDQ). (2) Also, CET facilitates CID by promoting green technological innovation and attracting analysts' attention. (3) Government environmental attention positively moderates improvements in CIDQ. (4) Treatment effects exhibit heterogeneity. Specifically, the effects are more pronounced in large, non-bottleneck enterprises, labor-intensive industries, and regions with advanced digital financial inclusion. The study's results remain robust across parallel trend tests, propensity score matching-difference-in-differences (PSM-DID), counterfactual analyses, and placebo tests. These findings contribute to the theoretical understanding of market-driven environmental regulations and provide policymakers with empirical evidence to optimize CET implementation and enhance CID promotion strategies.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"109 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145314777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Nanoplastic-Induced NAT10/ac4C Axis Drives Both Oxidative Stress and Chemoresistance 纳米塑料诱导的NAT10/ac4C轴驱动氧化应激和化学抗性
IF 13.6 1区 环境科学与生态学
Journal of Hazardous Materials Pub Date : 2025-10-19 DOI: 10.1016/j.jhazmat.2025.140193
Hengtao Fu, Jianfeng Sun, Zijun Shao, Caiyun Wang, Liping Bai, Guoyuan Zhu, Zhihong Jiang, Wei Zhang
{"title":"Nanoplastic-Induced NAT10/ac4C Axis Drives Both Oxidative Stress and Chemoresistance","authors":"Hengtao Fu, Jianfeng Sun, Zijun Shao, Caiyun Wang, Liping Bai, Guoyuan Zhu, Zhihong Jiang, Wei Zhang","doi":"10.1016/j.jhazmat.2025.140193","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.140193","url":null,"abstract":"The exact molecular mechanisms of nanoplastics toxicity remain poorly understood. This study provides the first evidence that exposure to polystyrene nanoparticles (PS-NPs) induces a significant epitranscriptomic reprogramming, detecting 38 different tRNA mononucleotides and 49 oligonucleotides through a derivatization-LC-MS/MS approach. PS-NPs induced potent oxidative stress, marked by a 3.1-fold increase in reactive oxygen species (ROS) and a 2.6-fold increase in the RNA damage marker 8-oxo-GMP. Furthermore, this stress upregulated the acetyltransferase NAT10, leading to N4-acetylcytidine (ac4C) hypermodification that occurred specifically within the D-loop of tRNA<sup>Leu</sup> under nanoplastics stress. Interestingly, NAT10/ac4C axis activation could also decrease the sensitivity to the chemotherapeutic agent sorafenib, increasing its IC<sub>50</sub> from 6.9<!-- --> <!-- -->μM to 25.7<!-- --> <!-- -->μM. Crucially, this chemoresistance was reversed by both pharmacological inhibition (with Remodelin) and genetic knockdown (with siRNA) of NAT10, which subsequently ameliorated oxidative stress and re-sensitized the cells to sorafenib, confirming the pathway's causal role in modulating cellular response to nanoplastic exposure. Our findings establish the upregulation of the NAT10/ac4C axis as a targeted, adaptive response to nanoplastics-induced stress, revealing a direct mechanistic link between an environmental pollutant and impaired chemotherapeutic efficacy. This identifies the NAT10/ac4C axis as both a key mediator of nanoplastics toxicity and a promising therapeutic target to restore cellular health.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"102 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145314810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Are quaternary ammonium compounds emitted into surface waters through wastewater or urban runoff? 季铵化合物是否通过废水或城市径流排放到地表水中?
IF 13.6 1区 环境科学与生态学
Journal of Hazardous Materials Pub Date : 2025-10-19 DOI: 10.1016/j.jhazmat.2025.140189
Andrea Mongelli, Pedro N Carvalho, Lena Mutzner, Yrsa Larsson, Kai Bester
{"title":"Are quaternary ammonium compounds emitted into surface waters through wastewater or urban runoff?","authors":"Andrea Mongelli, Pedro N Carvalho, Lena Mutzner, Yrsa Larsson, Kai Bester","doi":"10.1016/j.jhazmat.2025.140189","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.140189","url":null,"abstract":"Quaternary ammonium compounds (QACs) such as benzalkonium chlorides (BACs) are used in human hygiene, food production and building protection. However, the use on roofs is popular, but illegal. There are two main pathways for QACs to enter recipients: 1) legal use in human hygiene and emission via wastewater and 2) illegal use on rooftops and emissions via runoff water. However, the relative relevance of these two pathways for the occurrence and levels of QACS observed in surface waters is unknown. To resolve this issue, a process study was conducted on a small riverine system. QAC concentrations were below 0.1<!-- --> <!-- -->ng/L during dry weather while they reached 90<!-- --> <!-- -->ng/L during rainy weather. The concentration patterns of the parent QACs indicate that they originate mainly from surface runoff. Additionally, tributaries without wastewater treatment discharges delivered significant or even major QAC loads during rain events, also suggesting surface runoff from treated buildings as the predominant source. This interpretation is further solidified by using metoprolol as a marker for the river's wastewater fraction, thus calibrating a mass balance model. Both support the hypothesis that urban runoff dominates wastewater treatment plants as a source of QACs.On top of the parent compounds, QAC metabolites, originating from microbial degradation processes, were also detected.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"16 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145314815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Heavy Metals Fate in Mangrove Wetlands: Integrated Insights into Sediment-Microbe-Plant Interactions and Fraction Control 红树林湿地重金属的命运:沉积物-微生物-植物相互作用和分数控制的综合见解
IF 13.6 1区 环境科学与生态学
Journal of Hazardous Materials Pub Date : 2025-10-19 DOI: 10.1016/j.jhazmat.2025.140191
Gang LUO, Chunxiang LIU, Jin LUO, HU Wei, Danyi WEI, Yongze XING, Xiang SUN
{"title":"Heavy Metals Fate in Mangrove Wetlands: Integrated Insights into Sediment-Microbe-Plant Interactions and Fraction Control","authors":"Gang LUO, Chunxiang LIU, Jin LUO, HU Wei, Danyi WEI, Yongze XING, Xiang SUN","doi":"10.1016/j.jhazmat.2025.140191","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.140191","url":null,"abstract":"To unravel the complex biogeochemical fate of heavy metals (HMs) in mangrove ecosystems, this study disentangled the environmental drivers of their total distribution versus their ecological bioavailability. We employed a comparative Partial Least Squares Path Modeling (PLS-PM) approach across four mangrove areas under a distinct anthropogenic pressure gradient in the Beibu Gulf. The models revealed a critical divergence: while sediment physical structure was the primary factor controlling the total distribution of HMs, their bioavailability was more intricately governed by a combination of sediment chemistry (salinity) and nutrient cycling (N, P). This fraction-controlled bioavailability, in turn, was a significantly better predictor of biological responses. For phytoaccumulation, while root uptake correlated with sediment bioavailability, the metal loads in aboveground tissues were largely decoupled from sediment conditions, challenging risk assessment paradigms based solely on sediment data. For microbial communities, their structure was more strongly associated with metal bioavailability than total concentrations, with these bioavailable fractions appearing to exert selective pressure on key taxonomic groups. This study demonstrates that a fraction-centric approach, which separates the drivers of distribution from those of bioavailability, is essential for mechanistically understanding and accurately managing HMs risks in coastal wetlands.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"49 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145314809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
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