环境科学与生态学最新文献

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Investigations on the fluidized solidified soil prepared by sand-washing sludge: Engineering properties, solidification mechanism, and environmental impact. 洗砂污泥制备流态化固化土的研究:工程特性、固化机理及环境影响
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-11-15 Epub Date: 2025-08-05 DOI: 10.1016/j.envres.2025.122486
Yidan Mao, Guangwei Yu, Cheng Yu
{"title":"Investigations on the fluidized solidified soil prepared by sand-washing sludge: Engineering properties, solidification mechanism, and environmental impact.","authors":"Yidan Mao, Guangwei Yu, Cheng Yu","doi":"10.1016/j.envres.2025.122486","DOIUrl":"10.1016/j.envres.2025.122486","url":null,"abstract":"<p><p>Sand-washing sludge (SWS), a by-product of sand production processes, poses environmental challenges due to its massive accumulation. To improve resource utilization of waste SWS, this study stabilized SWS to prepare fluidized solidified soil (FSS) using ordinary Portland cement (OPC) and industrial solid waste (ISW). A systematic evaluation framework for FSS was developed by integrating key engineering properties (flowability, mechanical strength, and durability), microstructure, and environmental impact assessment. The results showed that the synergistic effect of SWS with OPC and ISW effectively improved the mechanical strength of FSS. The optimum performance was achieved with a mass ratio of SWS: OPC: ISW of 20:2:1, where the ISW composition comprised tailings: coal fly ash: ground granulated blast furnace slag: calcium carbide residue at a ratio of 20:43:129:8. The unconfined compressive strength, splitting strength, and resilient modulus of the resulting FSS reached 0.82, 0.64, and 242 MPa, respectively. These results confirmed that FSS met the strength requirements for structural backfill materials of the Chinese standard T/CMEA 32-2023. The incorporation of ISW contributed to the development of strength and the immobilization of heavy metals in FSS. Comprehensive environmental assessment confirmed the safety of FSS, with heavy metal leaching concentrations below regulatory thresholds and at low ecological risk levels. This study provides an efficient and environmentally friendly solution for resource utilization of SWS and establishes a theoretical foundation for further research and application of solidified soil materials.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"122486"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144768187","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
Hierarchical machine learning-based prediction for ultrasonic degradation of organic pollutants using sonocatalysts. 基于分层机器学习的超声降解有机污染物预测。
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-11-15 Epub Date: 2025-08-05 DOI: 10.1016/j.envres.2025.122500
Heewon Jeong, Byung-Moon Jun, Hyo Gyeom Kim, Yeomin Yoon, Kyung Hwa Cho
{"title":"Hierarchical machine learning-based prediction for ultrasonic degradation of organic pollutants using sonocatalysts.","authors":"Heewon Jeong, Byung-Moon Jun, Hyo Gyeom Kim, Yeomin Yoon, Kyung Hwa Cho","doi":"10.1016/j.envres.2025.122500","DOIUrl":"10.1016/j.envres.2025.122500","url":null,"abstract":"<p><p>Ultrasound-based advanced oxidation processes (AOPs) are effective for degrading organic pollutants, with hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) acting as a key intermediate in radical generation and overall degradation efficiency. However, conventional machine learning models often overlook the influence of reactive oxygen species (ROS), limiting their ability to accurately capture reaction dynamics. This study developed a two-stage hierarchical machine learning model that explicitly incorporates the role of H<sub>2</sub>O<sub>2</sub> in predicting degradation efficiency in ultrasound-based AOPs using sonocatalysts. The first stage predicts H<sub>2</sub>O<sub>2</sub> concentration generated during ultrasonic reactions. The second stage then estimates degradation efficiency using the predicted H<sub>2</sub>O<sub>2</sub> levels and other experimental conditions. This stepwise structure reflect the mechanistic sequence of ROS-mediated degradation. The optimized CatBoost model exhibited robust predictive performance by achieving coefficients of determination of 0.9941 and 0.9986 and root mean squared errors of 2.0724 and 0.9054 for the first and second stages, respectively. Additionally, the analysis revealed that frequency influences degradation efficiency indirectly by modulating H<sub>2</sub>O<sub>2</sub> production. Partial dependence plot analysis demonstrated a nonlinear relationship, where degradation efficiency initially increased with H<sub>2</sub>O<sub>2</sub> concentration but plateaued at higher levels due to catalyst surface interactions and radical scavenging effects. This study establishes a machine learning framework that integrates ROS into predictive modeling, enhancing the mechanistic understanding and optimization of ultrasound-based AOPs with sonocatalysts.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"122500"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144774430","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
Environmental filtering and species interaction shaped the phytoplankton community assembly and diversity in different regulation periods of river-type reservoir. 环境过滤和物种相互作用形成了河型水库不同调控期浮游植物群落的组成和多样性。
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-11-15 Epub Date: 2025-08-05 DOI: 10.1016/j.envres.2025.122512
Xiaoxiong Wen, Yang Zhou, Shanghong Zhang, Hua Zhang, Hao Wang
{"title":"Environmental filtering and species interaction shaped the phytoplankton community assembly and diversity in different regulation periods of river-type reservoir.","authors":"Xiaoxiong Wen, Yang Zhou, Shanghong Zhang, Hua Zhang, Hao Wang","doi":"10.1016/j.envres.2025.122512","DOIUrl":"10.1016/j.envres.2025.122512","url":null,"abstract":"<p><p>Reservoir regulation significantly alters riverine habitats, profoundly influencing phytoplankton communities, key indicators of aquatic ecosystem health. However, the assembly mechanisms shaping them in large, heterogeneous river-type reservoirs remain understudied. This study investigated the phytoplankton community in Three Gorges Reservoir (TGR), a China's representative river-type reservoir, across flood (FLP) and impoundment (IMP) periods, using samples collecting, alpha diversity, neutral community modeling, Mantel's tests, and co-occurrence network analysis to disentangle the underlying ecological processes. Results revealed a pronounced successional shift, from Bacillariophyta dominating the FLP (66.77 % relative abundance) to Cyanophyta dominating the IMP (68.22 %), and tributary areas showed heightened susceptibility to Cyanophyta blooms, particularly during IMP. Community assembly was overwhelmingly governed by deterministic processes, with neutral models explaining less than 25 % of the variation, and their influence intensified during the more stable IMP. Ammonia nitrogen (NH<sub>4</sub><sup>+</sup>-N), and water temperature (WT) were identified as primary environmental factors driving these changes. Furthermore, network analysis revealed a contrasting pattern between complexity and stability, the FLP's network, despite being more complex (45 nodes, 205 links), was less robust due to its centralization around a few dominant hub species, rendering the fluctuating backwater area (FA) particularly sensitive to disturbance. In contrast, the IMP's network was simpler (14 nodes, 27 links) but more stable. This study quantifies the shifting phytoplankton community assembly mechanisms in complex river-type, and provides a mechanistic explanation for these dynamics. These findings offer a robust foundation for future aquatic ecological health assessments and protection strategies.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"122512"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144793073","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
Three-dimensional distribution and key drivers of neonicotinoid residues in hilly agricultural areas. 丘陵农业区新烟碱残留的三维分布特征及主要驱动因素
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-11-15 Epub Date: 2025-08-05 DOI: 10.1016/j.envres.2025.122524
Jiaxun Guo, Wenju Lei, Xu Liang, Haitang Wang, Weixiao Qi, Shuting Huang, Xiaoyu Chen, Shilong He
{"title":"Three-dimensional distribution and key drivers of neonicotinoid residues in hilly agricultural areas.","authors":"Jiaxun Guo, Wenju Lei, Xu Liang, Haitang Wang, Weixiao Qi, Shuting Huang, Xiaoyu Chen, Shilong He","doi":"10.1016/j.envres.2025.122524","DOIUrl":"10.1016/j.envres.2025.122524","url":null,"abstract":"<p><p>Neonicotinoids (NNIs) raise global concern due to their substantial soil residues and potential health risks to animal and human health. High water solubility and low soil adsorption enhanced vertical and horizontal migration of NNIs. However, understanding of NNIs' three-dimensional distribution in soils and influencing factors remains limited, limiting accurate risk assessment and remediation strategies for agriculture ecosystems. This study selected typical mountainous farmland soil to investigate the three-dimensional distribution of NNIs contents and composition. The findings indicated that the average detection rate of imidacloprid (IMI) in the 0-20 cm layer was 33 % higher than that in the 30-40 cm layer, whereas clothianidin (CLO) detection rates remained consistent across 0-40 cm layer. The contents of eight NNIs (∑<sub>8</sub>NNIs) in the study area ranged from 0.09 to 37.08 ng/g, with the 6.58 ± 8.65 ng/g in the 0-10 cm and 2.60 ± 7.78 ng/g in the 30-40 cm layer. The contents of ∑<sub>8</sub>NNIs, IMI, and CLO decreased by 60 %, 62 %, and 75 %, respectively, with increasing depth. The proportion of IMI and CLO to ∑<sub>8</sub>NNIs decreased and increased by 35 % and 12 %, respectively, in the 0-40 cm soil, leading to IMI predominance in the topsoil (60 %) and CLO in the deeper soil (29 %). Correlation analysis revealed that soil particle size, slope, and elevation were significantly associated with both the ∑<sub>8</sub>NNIs and the proportions of IMI and CLO. These results highlighted the substantial influence of topography and soil structure on the vertical distribution of NNIs. Additionally, the ∑<sub>8</sub>NNIs content in stem mustard soil was higher than in sweet potato, rice, corn, and forest. Overall, the study found very low health risks to humans (hazard index, HI < 1) and no overall potential ecological risk in the study area, though localized sublethal risks to non-target organisms were identified. Furthermore, the spatial correlation between IMI and CLO health risk regions identified overlapping high-risk areas.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"122524"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144797779","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
Performance and mechanism of double S-scheme FeOOH/TiO2/g-C3N4 heterojunction for acetochlor degradation under visible-light-driven photo-Fenton. 双s型FeOOH/TiO2/g-C3N4异质结在可见光- fenton下降解乙草胺的性能及机理
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-11-15 Epub Date: 2025-08-06 DOI: 10.1016/j.envres.2025.122516
Jing Zhang, Xinlei Zhu, Tao Lin, Jianjun Liang
{"title":"Performance and mechanism of double S-scheme FeOOH/TiO<sub>2</sub>/g-C<sub>3</sub>N<sub>4</sub> heterojunction for acetochlor degradation under visible-light-driven photo-Fenton.","authors":"Jing Zhang, Xinlei Zhu, Tao Lin, Jianjun Liang","doi":"10.1016/j.envres.2025.122516","DOIUrl":"10.1016/j.envres.2025.122516","url":null,"abstract":"<p><p>A novel FeOOH/TiO<sub>2</sub>/g-C<sub>3</sub>N<sub>4</sub> (FTCN) dual S-scheme heterojunction catalyst was synthesized via hydrothermal assembly and comprehensively characterized. The catalytic performance of various systems was evaluated through acetochlor (ACT) degradation experiments, which revealed the FTCN/Visible-Light Photo-Fenton system as the optimal configuration. Under controlled conditions ([ACT] = 10 mg L<sup>-1</sup>, FTCN = 100 mg L<sup>-1</sup>, H<sub>2</sub>O<sub>2</sub> = 5 mmol L<sup>-1</sup>, pH 7, light intensity = 2300 W m<sup>-2</sup>), the system achieved 100 % ACT degradation within 20 min with an apparent rate constant of 0.252 min<sup>-1</sup>. FTCN catalyst exhibited exceptional reusability and structural integrity across four consecutive photo-Fenton cycles, effectively reducing energy consumption while more closely resembling the actual use of sunlight. Radical scavenging assays and electron paramagnetic resonance (EPR) spectroscopy conclusively identified four reactive species in the FTCN/photo-Fenton system: e<sup>-</sup>, h, ·O<sub>2</sub><sup>-</sup>, and ·OH, with ·OH being the predominant oxidative agent.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"122516"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144803111","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
Sulfate-reducing bacteria and sulfur-oxidizing bacteria interactions at redox interfaces: Implications for mercury methylation. 硫酸盐还原细菌和硫氧化细菌在氧化还原界面的相互作用:对汞甲基化的影响。
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-11-15 Epub Date: 2025-08-07 DOI: 10.1016/j.envres.2025.122553
Yangyi Ke, Yuping Xiang, Yongguang Yin, Yongmin Wang, Guangliang Liu, Yong Cai, Dingyong Wang
{"title":"Sulfate-reducing bacteria and sulfur-oxidizing bacteria interactions at redox interfaces: Implications for mercury methylation.","authors":"Yangyi Ke, Yuping Xiang, Yongguang Yin, Yongmin Wang, Guangliang Liu, Yong Cai, Dingyong Wang","doi":"10.1016/j.envres.2025.122553","DOIUrl":"10.1016/j.envres.2025.122553","url":null,"abstract":"<p><p>Methylmercury (MeHg), the most neurotoxic and bioaccumulative mercury (Hg) species, poses significant risks to human and ecosystem health. Predicting these risks requires elucidating the drivers of MeHg production, which peaks at redox interfaces in aquatic systems where the primary Hg methylators, sulfate-reducing bacteria (SRB), are most active. Elevated Hg(II) methylation at these zones is primarily driven by the active sulfur cycling, primarily mediated by Hg-methylating SRB and sulfur-oxidizing bacteria (SOB) interactions. This review explores possible mechanisms enhancing Hg(II) methylation at redox interfaces, focusing on: 1) coupling between Hg(II) methylation and inorganic sulfur cycling; 2) syntrophic coexistence of SRB and SOB; and 3) SRB-SOB interactions that enhance Hg(II) bioavailability and microbial activity. We propose that SOB mitigate HgS precipitation by rapidly oxidizing SRB-derived sulfide, thereby increasing Hg(II) bioavailability. Concurrently, SOB generate sulfate (SO<sub>4</sub><sup>2-</sup>), sustaining Hg-methylating SRB metabolic activity and promoting MeHg production. While previous studies highlight these synergies, direct evidence linking SOB activity to Hg speciation remains scarce. Future research is needed to understand whether SOB directly internalize or excrete Hg(II) and MeHg, and how extracellular metabolites (e.g., exopolysaccharides, thiols) alter Hg speciation and bioavailability. Additionally, although microbial interactions enhance SRB and SOB growth in coculture, the pathways mediating these interactions are poorly characterized. Resolving these knowledge gaps is helpful in mitigating MeHg risks in redox-stratified environments.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"122553"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144811504","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
Temporal trend of cause-specific mortality burden attributable to ambient PM2.5 from different sectors and fuel types across Chinese provinces during 2015-2022. 2015-2022年中国各省不同行业和燃料类型环境PM2.5导致的死因特异性死亡率负担的时间趋势
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-11-15 Epub Date: 2025-08-06 DOI: 10.1016/j.envres.2025.122507
Jianheng Chen, Dashan Zheng, Wanqi Wen, Laura Wieser, Gregor Kiesewetter, Chongjian Wang, Shaohui Zhang, Hualiang Lin
{"title":"Temporal trend of cause-specific mortality burden attributable to ambient PM<sub>2.5</sub> from different sectors and fuel types across Chinese provinces during 2015-2022.","authors":"Jianheng Chen, Dashan Zheng, Wanqi Wen, Laura Wieser, Gregor Kiesewetter, Chongjian Wang, Shaohui Zhang, Hualiang Lin","doi":"10.1016/j.envres.2025.122507","DOIUrl":"10.1016/j.envres.2025.122507","url":null,"abstract":"<p><strong>Background: </strong>To estimate the disease-specific mortality burden attributable to fine particulate matter (PM<sub>2.5</sub>) pollution in China across multiple sectors and fuel types during 2015-2022.</p><p><strong>Methods: </strong>The Greenhouse Gas-Air Pollution Interactions and Synergies (GAINS) model was used to estimate PM<sub>2.5</sub> concentrations in Chinese provinces from seven sectors and five fuel types. The relative risks (RR) of seven diseases were assessed using the Integrated Exposure-Response (IER) model. The number of deaths attributable to PM<sub>2.5</sub> pollution (DAPP) and the attributable fraction (AF), representing the proportion of total deaths caused by PM<sub>2.5</sub> exposure, were estimated by province, sector, and fuel type, then compared across the years 2015, 2019, 2021, and 2022.</p><p><strong>Results: </strong>Ambient PM<sub>2.5</sub> concentrations in China exhibited a gradual decline, the most substantial reductions were observed in household, industry, and agriculture. There were 1,440,000 PM<sub>2.5</sub>-related deaths and 13.8 % AF for China in 2022, with a reduction of 290,000 compared with 2015. The largest reductions among 31 provinces were observed in Henan, followed by Hebei and Shandong, with 27,000, 26,000, and 25,000 decreases, respectively. Additionally, DAPP decreased most in stroke and ischemic heart disease (IHD). For different sectors, agriculture, household and industry sectors demonstrated the greatest reductions in DAPP from 2015 to 2022, accounting for 131,000, 130,000, and 72,000, respectively. In 2022, DAPP attributable to coal combustion decreased by 190,000, with the most substantial reduction observed in the household sector. However, DAPP increased by 23,000 in 2022 compared to 2021, despite a continued decline in AF.</p><p><strong>Conclusion: </strong>The findings highlight the substantial public health benefits of emission control measures implemented across multiple sectors in China, including industry, agriculture, and transport. To alleviate the health burden of an aging population, it is necessary and feasible to implement further PM<sub>2.5</sub> control efforts and develop targeted policies for different regions, diseases, and industries in China.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"122507"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144783132","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
Functional reorganization and systemic toxicity induced by microplastics and climate-relevant stressors in Tribolium castaneum: Are we simulating tomorrow's toxic reality? 微塑料和气候相关应激源诱导的功能性重组和全身毒性:我们是否在模拟明天的毒性现实?
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-11-15 Epub Date: 2025-08-05 DOI: 10.1016/j.envres.2025.122462
Guilherme Malafaia, Ariane Guimarães, Wesley Rodrigues Soares, Ivandilson Pessoa Pinto de Menezes, Aline Sueli de Lima Rodrigues, Alex Rodrigues Gomes, Raíssa de Oliveira Ferreira, Pâmela de Souza Oliveira, Karina Agrécia Dias Barbosa, Rafaela Ribeiro de Brito, Thiarlen Marinho da Luz
{"title":"Functional reorganization and systemic toxicity induced by microplastics and climate-relevant stressors in Tribolium castaneum: Are we simulating tomorrow's toxic reality?","authors":"Guilherme Malafaia, Ariane Guimarães, Wesley Rodrigues Soares, Ivandilson Pessoa Pinto de Menezes, Aline Sueli de Lima Rodrigues, Alex Rodrigues Gomes, Raíssa de Oliveira Ferreira, Pâmela de Souza Oliveira, Karina Agrécia Dias Barbosa, Rafaela Ribeiro de Brito, Thiarlen Marinho da Luz","doi":"10.1016/j.envres.2025.122462","DOIUrl":"10.1016/j.envres.2025.122462","url":null,"abstract":"<p><p>Microplastic (MP) pollution and the intensification of global climate change raise concerns regarding potential interactions between these stressors and their ecotoxicological effects on terrestrial biota. In this study, we investigated the ecotoxicological effects of polyethylene MPs (PE-MPs) under different climate scenarios in Tribolium castaneum. Adults were exposed for 21 days to two environmentally relevant concentrations of PE-MPs (0.005 % and 0.1 %) under three contrasting temperature and CO<sub>2</sub> scenarios (27 °C/1000 ppm, 28.5 °C/1500 ppm, and 30 °C/2000 ppm). Behavioral, morphofunctional, and biochemical biomarkers were assessed using an integrative approach based on principal component analysis (PCA), factorial ANOVA, partial least squares-discriminant analysis (PLS-DA), and functional correlation networks. MPs induced significant structural alterations, including increased surface irregularity, a more compact body morphology, and loss of physical integrity, with marked effects in groups MP-II [27(1000)] and MP-II [30(2000)]. Anxiety-like behavior, hypoactivity, and locomotor disorganization were detected through PCA-derived integrated scores. At the same time, neuromotor dysfunction was evidenced by increased righting latency in group MP-II [30(2000)], and exploratory deficits were captured by the dispersal propensity index. Biochemically, groups MP-II [28.5(1500)] and [30(2000)] exhibited bioenergetic redistribution, reflected in altered integrated indices, alongside inhibition of digestive, antioxidant, redox, and neurochemical enzyme activities. Functional correlation networks revealed nonlinear reorganizations of biochemical architecture, with specific collapses and compensatory patterns. Network analysis identified MP-II [27(1000)] and [30(2000)] as the most functionally dissonant groups, with the highest MP accumulation in the latter likely responsible for the collapse of highly connected biomarkers. Thus, our study emphasizes that the impacts of MPs are not solely determined by exposure load or accumulation but also by the organism's systemic response capacity, expanding the understanding of their ecotoxicological effects under emerging climate scenarios.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"122462"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144797774","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
Enhancing phyto-microbial remediation of petroleum-contaminated soil using sophorolipid-modified biochar: Metagenomic and metabolomic insights. 利用槐脂修饰的生物炭加强石油污染土壤的植物微生物修复:宏基因组和代谢组学见解。
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-11-15 Epub Date: 2025-08-07 DOI: 10.1016/j.envres.2025.122525
Yuhang Chen, Fumei Wang, Jiaqi Gao, Qinglong Liu, Jiaming Guo, Huan Liu
{"title":"Enhancing phyto-microbial remediation of petroleum-contaminated soil using sophorolipid-modified biochar: Metagenomic and metabolomic insights.","authors":"Yuhang Chen, Fumei Wang, Jiaqi Gao, Qinglong Liu, Jiaming Guo, Huan Liu","doi":"10.1016/j.envres.2025.122525","DOIUrl":"10.1016/j.envres.2025.122525","url":null,"abstract":"<p><p>We developed KOH-activated biochar (K-BC) and sophorolipid-modified K-BC (S-K-BC) for enhancing phyto-microbial remediation of petroleum hydrocarbon (PH)-contaminated soil using Iris lactea Pall. Subsequently, three remediation systems were established: KBC-SLs (Iris lactea Pall. + 2 wt% S-K-BC), KBC + SLs (Iris lactea Pall. + 2 wt% K-BC + 3 × 10<sup>-4</sup> mol SLs), and KBC (Iris lactea Pall. + 2 wt% K-BC) to study the enhancing effect on phyto-microbial remediation. The removal ratio of petroleum hydrocarbons (PHs) in KBC-SLs, KBC + SLs and KBC were 64.0 %, 53.6 % and 46.7 %, respectively, which were higher than that of the plant alone treatment group (27.8 %). After 90 days of remediation experiments, metagenomics showed that KBC-SLs increased the abundance of PH-degrading bacteria (Actinomycetota +34.3 %, Acidobacteriota +23.3 %) and key genes (alkB +32.3 %, nidB +49.8 %, xylC +33.4 %). Metabolomics revealed that KBC-SLs boosted PHs degradation by upregulating fatty acid and polycyclic aromatic hydrocarbons (PAHs) metabolic pathways. Association analysis of metagenomics and metabolomics showed strong positive correlations between PHs metabolites and PHs degrading microorganisms, such as palmitic acid with Bacteroidota, myristic acid with Acidobacteriota. And, strong positive correlations were observed between PHs metabolites and PHs degradation genes, such as m-toluic acid with nahE (K14585) and xylM (K15757). Additionally, KBC-SLs had enhanced the phyto-microbial remediation of PH-contaminated soil by boosting plant growth, root activity, soil enzymes, and plant-microbe synergy. This study confirms that S-K-BC effectively enhances the phyto-microbial remediation of PH-contaminated soil, providing valuable insights into green and sustainable remediation technologies.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"122525"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144811500","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
Corrigendum to 'Insect-derived chitosan for phosphate recovery and application as a sustainable fertilizer' [Environ. Res. 284 (2025) 122252]. “用于磷酸盐回收和作为可持续肥料的昆虫衍生壳聚糖”的勘误表[环境]。Res. 284(2025)[122252]。
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-11-15 Epub Date: 2025-08-09 DOI: 10.1016/j.envres.2025.122528
Priya E, Akash Jha, Jatin C Paghadal, Sudipta Sarkar
{"title":"Corrigendum to 'Insect-derived chitosan for phosphate recovery and application as a sustainable fertilizer' [Environ. Res. 284 (2025) 122252].","authors":"Priya E, Akash Jha, Jatin C Paghadal, Sudipta Sarkar","doi":"10.1016/j.envres.2025.122528","DOIUrl":"10.1016/j.envres.2025.122528","url":null,"abstract":"","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"285 Pt 3","pages":"122528"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144815393","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
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