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Unveiling microplastic pollution: Evaluating the role of Sinotaia quadrata (Caenogastropoda, Viviparidae) as a monitoring tool in freshwater ecosystems
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-03-31 DOI: 10.1016/j.envres.2025.121513
Alice Gabetti , Annamaria Nocita , Alessandra Maganza , Camilla Mossotto , Serena Anselmi , Tecla Bentivoglio , Giuseppe Esposito , Elena Bozzetta , Antonia Concetta Elia , Monia Renzi , Marino Prearo , Damià Barceló , Paolo Pastorino
{"title":"Unveiling microplastic pollution: Evaluating the role of Sinotaia quadrata (Caenogastropoda, Viviparidae) as a monitoring tool in freshwater ecosystems","authors":"Alice Gabetti ,&nbsp;Annamaria Nocita ,&nbsp;Alessandra Maganza ,&nbsp;Camilla Mossotto ,&nbsp;Serena Anselmi ,&nbsp;Tecla Bentivoglio ,&nbsp;Giuseppe Esposito ,&nbsp;Elena Bozzetta ,&nbsp;Antonia Concetta Elia ,&nbsp;Monia Renzi ,&nbsp;Marino Prearo ,&nbsp;Damià Barceló ,&nbsp;Paolo Pastorino","doi":"10.1016/j.envres.2025.121513","DOIUrl":"10.1016/j.envres.2025.121513","url":null,"abstract":"<div><div>Freshwater species play a key role in monitoring microplastics (MPs) pollution, providing insights into its distribution, accumulation, and potential ecological and human health risks in aquatic ecosystems. This study evaluates the invasive snail <em>Sinotaia quadrata</em> as a potential tool for monitoring MPs pollution in freshwater ecosystems heavily impacted by human activities. Specifically, we examined whether the characteristics of MPs (i.e., shape, color, and chemical composition) found in water and sediment were reflected in those accumulated by <em>S. quadrata</em>, and whether MPs accumulation varied across different snail size classes. MPs were detected in all environmental matrices and snail samples, with fragments and filaments as the dominant shapes, blue, white, and black as the most common colors, and polypropylene, polyethylene, and polyethylene terephthalate as the primary polymers. A significant difference in MPs concentration per gram was found across snail size classes, with smaller snails accumulating more MPs than larger individuals, likely due to higher feeding rates during growth. A positive correlation was observed between snail shell length and weight, while MPs concentration per gram showed significant negative correlations with both parameters. These findings suggest that <em>S. quadrata</em> accumulates MPs from the environment, reflecting local contamination levels. While <em>S. quadrata</em> is an invasive species, this study demonstrates its potential utility in MPs monitoring, particularly in the context of eradication efforts. This approach integrates pollution assessment with invasive species management, offering a broader perspective on the role of biological invasions in environmental monitoring.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"276 ","pages":"Article 121513"},"PeriodicalIF":7.7,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746401","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 ‘Primary producers in freshwater ecosystem respond differently to multiple environmental stressors: A mesocosm study’ [Environ. Res. 272 (2025) 121145]
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-03-31 DOI: 10.1016/j.envres.2025.121490
Jianlin Chen , Haowu Cheng , Yifeng Yan , Jiangqiu Zhu , Min Zhang , Songguang Xie , Jun Xu , Huan Wang
{"title":"Corrigendum to ‘Primary producers in freshwater ecosystem respond differently to multiple environmental stressors: A mesocosm study’ [Environ. Res. 272 (2025) 121145]","authors":"Jianlin Chen ,&nbsp;Haowu Cheng ,&nbsp;Yifeng Yan ,&nbsp;Jiangqiu Zhu ,&nbsp;Min Zhang ,&nbsp;Songguang Xie ,&nbsp;Jun Xu ,&nbsp;Huan Wang","doi":"10.1016/j.envres.2025.121490","DOIUrl":"10.1016/j.envres.2025.121490","url":null,"abstract":"","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"274 ","pages":"Article 121490"},"PeriodicalIF":7.7,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Thermal environment driving specific microbial species to form the visible biofilms on the UNESCO World Heritage Dazu Rock Carvings
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-03-31 DOI: 10.1016/j.envres.2025.121510
Meng Liu , Shuwan Wang , Hua Zhou , Huan Liu , Di Huang , Lumeng Liu , Qisheng Li , Huili Chen , Yu Lei , Ling N. Jin , Wengang Zhang
{"title":"Thermal environment driving specific microbial species to form the visible biofilms on the UNESCO World Heritage Dazu Rock Carvings","authors":"Meng Liu ,&nbsp;Shuwan Wang ,&nbsp;Hua Zhou ,&nbsp;Huan Liu ,&nbsp;Di Huang ,&nbsp;Lumeng Liu ,&nbsp;Qisheng Li ,&nbsp;Huili Chen ,&nbsp;Yu Lei ,&nbsp;Ling N. Jin ,&nbsp;Wengang Zhang","doi":"10.1016/j.envres.2025.121510","DOIUrl":"10.1016/j.envres.2025.121510","url":null,"abstract":"<div><div>The Dazu Rock Carvings, a UNESCO World Heritage site with over a millennium of history, are facing significant deterioration from microbial biofilms. However, the key microbial species responsible and the environmental factors driving their growth remain unclear. To address this gap, we conducted metagenomic sequencing to characterize the microbial community on the carvings, followed by correlation analyses with a variety of environmental factors in the surrounding air and within the rocks. Bacterial communities exhibited significantly higher richness and diversity than eukaryotic communities, though diversity metrics showed no significant differences between visibly colonized and uncolonized surfaces. We identified a distinctive consortium of 64 bacterial species, 35 fungal species, and 1 algal species specifically associated with visible biofilms, occurring at 9.56-fold higher relative abundance in colonized areas. These microorganisms contribute to characteristic green, brown-black, and white coloration on the carvings. Statistical analysis revealed absolute humidity and dew point temperature as key environmental factors influencing biofilm visibility, with thresholds of 21.00 g/m<sup>3</sup> and 23.4 °C respectively, above which biofilms became visible. This study provides precise targets for conservation efforts and establishes critical environmental parameters to guide preservation strategies for this irreplaceable cultural heritage.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"276 ","pages":"Article 121510"},"PeriodicalIF":7.7,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Night shift work and indicators of cardiovascular risk: a systematic review and meta-analysis.
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-03-29 DOI: 10.1016/j.envres.2025.121503
Johanna Samulin Erdem, Mrinal K Das, Evi De Ryck, Øivind Skare, S Lie Jenny-Anne, Merete Bugge, Barbara Harding, Ingrid L Jorgensen, Ingrid Sivesind Mehlum, Manolis Kogevinas, Karl-Christian Nordby, Shan Zienolddiny-Narui
{"title":"Night shift work and indicators of cardiovascular risk: a systematic review and meta-analysis.","authors":"Johanna Samulin Erdem, Mrinal K Das, Evi De Ryck, Øivind Skare, S Lie Jenny-Anne, Merete Bugge, Barbara Harding, Ingrid L Jorgensen, Ingrid Sivesind Mehlum, Manolis Kogevinas, Karl-Christian Nordby, Shan Zienolddiny-Narui","doi":"10.1016/j.envres.2025.121503","DOIUrl":"https://doi.org/10.1016/j.envres.2025.121503","url":null,"abstract":"<p><p>Cardiovascular disease (CVD) is a leading cause of death worldwide, and shift workers have an increased risk of CVD. This comprehensive systematic review and meta-analysis aimed to assess the association between night shift work and cardiovascular risk indicators. A systematic literature search was performed according to the PRISMA 2020 guidelines using Medline, Embase, and Web of Science databases from inception through May 2024. Original manuscripts reporting relevant cardiovascular risk indicators and biomarkers in night shift workers were included. Risk of bias was assessed using the JBI's critical appraisal tools. When applicable, random-effect meta-analyses were performed. If suitable data was not available, a narrative synthesis was performed by combining p-values or vote-counting. Meta-regression analyses were performed to assess the contribution of sex, body mass index, and age as possible modifiers of effect. Evidence was weighed using an adapted GRADE. This study is registered in PROSPERO (CRD42022337285). Of the 8,387 studies identified, 81 were included in the synthesis, comprising 14 cohort and 67 cross-sectional studies. Moderate-confidence evidence was presented demonstrating increased inflammation, dyslipidaemia and impaired cardiac excitability among night shift workers. Dose-dependent effects were reported for these cardiovascular risk indicators, suggesting that the intensity and duration of night shift work contribute to risk of CVD. Furthermore, no association between night shift work and indicators of vascular dysfunction, deregulation of the autonomic nervous system, or altered homeostasis was observed. Considering this, regulatory and preventative initiatives are essential to reduce the cardiovascular risk among night shift workers.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"121503"},"PeriodicalIF":7.7,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143750130","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
Engineering the SrTiO3/CuO heterostructure nanocomposite by CNT for superior visible light-driven photocatalytic performance and hydrogen evolution
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-03-29 DOI: 10.1016/j.envres.2025.121502
Gita Asghari , Vahid Mahdikhah , Kooshan Kalantarian , Saeed Sheibani
{"title":"Engineering the SrTiO3/CuO heterostructure nanocomposite by CNT for superior visible light-driven photocatalytic performance and hydrogen evolution","authors":"Gita Asghari ,&nbsp;Vahid Mahdikhah ,&nbsp;Kooshan Kalantarian ,&nbsp;Saeed Sheibani","doi":"10.1016/j.envres.2025.121502","DOIUrl":"10.1016/j.envres.2025.121502","url":null,"abstract":"<div><div>In this paper, a SrTiO<sub>3</sub>/CuO/CNT nanocomposite was synthesized through a co-precipitation to achieve better visible light photocatalytic performance. Analysis of X-ray diffraction (XRD) combined with field emission scanning electron microscopy (FESEM), diffuse reflectance spectroscopy (DRS), photoluminescence (PL) spectroscopy, and X-ray photoelectron spectroscopy (XPS) confirmed a successful integration of CuO and CNTs into the SrTiO<sub>3</sub> nanoparticle. The modifications resulted in a smaller particle size while narrowing the bandgap to 2.85 eV. They enhanced electric charge capabilities with lower PL intensity, increased photocurrent density, and decreased charge transfer resistance. The photocatalytic performance was evaluated for both organic pollutant degradation and hydrogen production through water splitting. The nanocomposite demonstrated complete degradation of methylene blue (MB) within 60 min, with high efficiency for other pollutants like methyl orange (MO) and rhodamine B (RhB). A study of the mechanism using scavenger methods identified the type-II charge transfer while showing superoxide radicals act as main reactive species. The nanocomposite produced hydrogen with a rate of 1495 μmol/g.h. The degradation kinetics followed a pseudo-first-order model at low concentrations and a Langmuir-Hinshelwood model at higher levels, emphasizing the role of CNTs in enhancing charge transfer and degradation efficiency. The enhanced photocatalytic activity is attributed to the synergistic effects of CuO and CNTs, promoting efficient charge separation, extended visible light absorption, and faster electron transport. Stability tests confirmed the composite's durability, retaining 91 % efficiency after four cycles.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"276 ","pages":"Article 121502"},"PeriodicalIF":7.7,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Acid-resistant bismuth-doped antimony for effective Sr2+ adsorption in nitric acid solutions
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-03-29 DOI: 10.1016/j.envres.2025.121476
Yifu Hu, Zhi Cao, Zhongwei Yuan, Wentao Wang, Qi Chen, Guoan Ye, Taihong Yan
{"title":"Acid-resistant bismuth-doped antimony for effective Sr2+ adsorption in nitric acid solutions","authors":"Yifu Hu,&nbsp;Zhi Cao,&nbsp;Zhongwei Yuan,&nbsp;Wentao Wang,&nbsp;Qi Chen,&nbsp;Guoan Ye,&nbsp;Taihong Yan","doi":"10.1016/j.envres.2025.121476","DOIUrl":"10.1016/j.envres.2025.121476","url":null,"abstract":"<div><div><sup>90</sup>Sr, a radioactive fission product in high-level liquid waste (HLLW), poses long-term environmental risks due to potential waterborne dispersion. A bismuth-doped Sb<sub>2</sub>O<sub>5</sub> material (BiSb-0.1) was synthesized in this work to effectively remove strontium from simulated high-level liquid waste (HLLW). The maximum adsorption capacity attained 51.69 mg/g for Sr<sup>2+</sup> in a 0.1 mol/L HNO<sub>3</sub> solution. The adsorption data were well-fitted by the pseudo-second-order kinetic model and the Freundlich isotherm model. According to the thermodynamic parameters, the Sr<sup>2+</sup> adsorption procedures are endothermic. Additionally, BiSb-0.1 demonstrated notable stability against γ-irradiation. Various characterization methods and DFT calculations have proved that the mechanism of Sr<sup>2+</sup> adsorption is the exchange between Sr<sup>2+</sup> and H<sup>+</sup> in Sb−OH and the coordination between O atom and Sr<sup>2+</sup>.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"276 ","pages":"Article 121476"},"PeriodicalIF":7.7,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746408","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
Fabrication of Fe-Doped UiO-66-NH2@b-TiO2 Z-Scheme Heterojunction for Enhanced Visible Light-Driven Degradation of VSCs and Antibiotics.
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-03-29 DOI: 10.1016/j.envres.2025.121498
Li He, Xingkai Lu, Yuyao Xu, Zichang Yang, Jiayao Zhang, Changming Li, Xiaolong Yao, Yue Yi, Zhiliang Yao
{"title":"Fabrication of Fe-Doped UiO-66-NH<sub>2</sub>@b-TiO<sub>2</sub> Z-Scheme Heterojunction for Enhanced Visible Light-Driven Degradation of VSCs and Antibiotics.","authors":"Li He, Xingkai Lu, Yuyao Xu, Zichang Yang, Jiayao Zhang, Changming Li, Xiaolong Yao, Yue Yi, Zhiliang Yao","doi":"10.1016/j.envres.2025.121498","DOIUrl":"https://doi.org/10.1016/j.envres.2025.121498","url":null,"abstract":"<p><p>Volatile sulfur compounds (VSCs) and sulfur-containing antibiotic wastewater are pervasive environmental pollutants that pose significant risks to atmospheric and aquatic ecosystems. Traditional photocatalysts often lack the versatility to simultaneously address multiple pollutants, highlighting the need for multifunctional materials. A novel FeUiO-66-NH<sub>2</sub>@b-TiO<sub>2</sub> composite with a Z-scheme heterojunction has been developed as a highly efficient and tunable visible-light photocatalyst for the degradation of both VSCs and sulfur-containing antibiotics. The composite was synthesized through a one-pot hydrothermal method, and its photocatalytic performance was optimized by varying the ratio of FeUiO-66-NH<sub>2</sub> to b-TiO<sub>2</sub>. The Z-scheme heterojunction facilitates effective separation and transfer of photogenerated carriers, significantly enhancing the material's photocatalytic activity. The material's structure and photoresponse were evaluated using XRD and FTIR. Under visible light, the composite exhibited remarkable degradation performance. For example, FU1T6 achieved complete degradation of CH<sub>3</sub>SH within 20 minutes, while FU3T1 degraded 90% of the antibiotic cefixime within 140 minutes. Moreover, the material demonstrated excellent degradation efficiency for other cephalosporins and amoxicillin, proving its broad-spectrum capability for sulfur-containing antibiotics. This study highlights the FeUiO-66-NH<sub>2</sub>@b-TiO<sub>2</sub> composite as a promising candidate for the treatment of complex environmental pollutants, including odorous gases and antibiotic wastewater. The results suggest that material design, particularly the integration of the Z-scheme heterojunction, enables multifunctional pollutant treatment, contributing significantly to environmental protection and public health. These findings provide an innovative strategy for tackling diverse sulfur-based pollutants in environmental remediation.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"121498"},"PeriodicalIF":7.7,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143750126","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
Switching CO2 reduction selectivity in Cu-TiO2 catalysts: Role of Cu+ site location and oxygen vacancy concentration
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-03-29 DOI: 10.1016/j.envres.2025.121501
Yuhan Ji , Haotong Ma , Honglei Shao , Zhanshuo Tao , Wenchao Wang , Yingchun Miao , Shuning Xiao
{"title":"Switching CO2 reduction selectivity in Cu-TiO2 catalysts: Role of Cu+ site location and oxygen vacancy concentration","authors":"Yuhan Ji ,&nbsp;Haotong Ma ,&nbsp;Honglei Shao ,&nbsp;Zhanshuo Tao ,&nbsp;Wenchao Wang ,&nbsp;Yingchun Miao ,&nbsp;Shuning Xiao","doi":"10.1016/j.envres.2025.121501","DOIUrl":"10.1016/j.envres.2025.121501","url":null,"abstract":"<div><div>Efficient conversion of CO<sub>2</sub> into valuable chemicals such as CH<sub>4</sub> under mild conditions is a significant challenge due to the high thermodynamic and kinetic barriers associated with multi-electron transfer reactions. In this study, we present a microwave-assisted strategy for the synthesis of Cu-doped, oxygen vacancy (Ov)-enriched TiO<sub>2</sub> nanotubes (C-CT) that stabilize both bulk and surface Cu<sup>+</sup> species. These photocatalysts exhibit a remarkable CH<sub>4</sub> production rate of 202.1 μmol g<sup>−1</sup> h<sup>−1</sup> under simulated sunlight, with an outstanding electron selectivity of 99 %. Mechanistic investigations reveal that the synergistic interaction between Cu<sup>+</sup> sites and oxygen vacancies enhances charge separation, stabilizes critical reaction intermediates, and facilitates the eight-electron reduction pathway for selective CH<sub>4</sub> production. This work offers a sustainable approach to CO<sub>2</sub> utilization, helping to overcome the thermodynamic and kinetic barriers in CO<sub>2</sub> photoreduction. Such efficient photocatalysts have the potential to significantly reduce CO<sub>2</sub> emissions and promote environmental sustainability.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"276 ","pages":"Article 121501"},"PeriodicalIF":7.7,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Rapid and efficient nitrogen removal by a novel heterotrophic nitrification-aerobic denitrification bacteria Marinobacterium maritimum 5-JS in aquaculture wastewater: performance and potential applications.
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-03-29 DOI: 10.1016/j.envres.2025.121500
Fu-Rong Wang, Shi-Yu Feng, Shuai Liang, Wei-Yu Du, Long-Qi Wang, Yu-Wei Zhang, Jia-Yu Ren, Shuang Gao, Yu-Jie Zhu, Yu-Ting Cong, Li Wang, Jing Gu, Yuan Wang, Hua Wang, Ya-Nan Lu, Lian-Shun Wang, Guo-Jun Yang
{"title":"Rapid and efficient nitrogen removal by a novel heterotrophic nitrification-aerobic denitrification bacteria Marinobacterium maritimum 5-JS in aquaculture wastewater: performance and potential applications.","authors":"Fu-Rong Wang, Shi-Yu Feng, Shuai Liang, Wei-Yu Du, Long-Qi Wang, Yu-Wei Zhang, Jia-Yu Ren, Shuang Gao, Yu-Jie Zhu, Yu-Ting Cong, Li Wang, Jing Gu, Yuan Wang, Hua Wang, Ya-Nan Lu, Lian-Shun Wang, Guo-Jun Yang","doi":"10.1016/j.envres.2025.121500","DOIUrl":"https://doi.org/10.1016/j.envres.2025.121500","url":null,"abstract":"<p><p>Efficient nitrogen removal from aquaculture wastewater is crucial for environmental sustainability. A novel strain, Marinobacterium maritimum 5-JS, exhibiting HN-AD capabilities, was isolated from a sea cucumber aquaculture pond. This strain demonstrated remarkable nitrogen removal efficiencies, achieving nearly 100% elimination of NH<sub>4</sub><sup>+</sup>-N, NO<sub>3</sub><sup>-</sup>-N and NO<sub>2</sub><sup>-</sup>-N within 18 h. Strain 5-JS preferentially utilizes NH<sub>4</sub><sup>+</sup>-N in simultaneous nitrification and denitrification processes, with optimal removal achieved using sodium citrate as a carbon source, a C/N ratio of 11, pH 8.0, and at a temperature of 30 °C. The metabolic pathway of strain 5-JS was elucidated, indicating its adaptability to high concentrations of Mg<sup>2+</sup>, Fe<sup>2+</sup>, and Mn<sup>2+</sup> (up to 50 mg/L). When introduced into mariculture wastewater, strain 5-JS rapidly reduced concentrations of all three nitrogen compounds to undetectable levels within 8 h. These findings highlight the exceptional nitrogen removal capabilities of strain 5-JS and its potential for application in the biological treatment of aquaculture wastewater.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"121500"},"PeriodicalIF":7.7,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143750219","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
Spatial variability and driving factors of soil pH in the desert grasslands of northern Xinjiang
IF 7.7 2区 环境科学与生态学
Environmental Research Pub Date : 2025-03-28 DOI: 10.1016/j.envres.2025.121489
Huixia Liu , Bingjie Yu , Zongjiu Sun , Panxing He , Yiqiang Dong , Helong Yang
{"title":"Spatial variability and driving factors of soil pH in the desert grasslands of northern Xinjiang","authors":"Huixia Liu ,&nbsp;Bingjie Yu ,&nbsp;Zongjiu Sun ,&nbsp;Panxing He ,&nbsp;Yiqiang Dong ,&nbsp;Helong Yang","doi":"10.1016/j.envres.2025.121489","DOIUrl":"10.1016/j.envres.2025.121489","url":null,"abstract":"<div><div>As an important reserve land resource and ecological safety zone, saline-alkali land plays a key role in national food security during the global food crisis. Soil pH is an important indicator of saline-alkali land degradation, and its expansion seriously affects regional food security and sustainable ecosystems. However, limited mechanistic understanding hinders the formulation of land management strategies and affects the storage of soil organic matter. Therefore, identifying the spatial variation of soil properties affected by environmental factors is crucial to promote future agricultural practices. A total of 9405 soil samples (0–100 cm) were collected from 527 sites in the Junggar Basin to measure pH levels. Geostatistical analyses were conducted to elucidate the spatial distribution patterns of pH. Environmental impact pathways were determined through the application of Linear regression (LR), Redundancy analysis (RDA), Random forest(RF), and Structural equation modeling(SEM). The results showed that (1) the mean soil pH in arid desert areas was 8.64, alkaline, with a tendency to increase and then decrease with soil depth (R<sup>2</sup> = 0.82, <em>P</em> &lt; 0.05); sandy and saline deserts were significantly higher than gravelly deserts by a factor of 1.05, and small arbors deserts were significantly higher than shrub deserts by a factor of 1.03 (<em>P</em> &lt; 0.05). (2) The exponential model was the optimal model for soil pH in desert rangeland, which is mainly influenced by structural factors. The study area was completely alkaline, with heavy alkaline sporadically distributed. (3) Different statistical methods all show that monthly precipitation, soil organic carbon density, shrub vegetation cover, and biomass are significant influences on soil pH, and the structural equation model (SEM) clearly showed the direct and indirect pathways of environmental factors on soil pH, with monthly precipitation modifies soil pH changes by regulating vegetation traits and was a key driver of desert soil pH distribution in arid zones. The research results provide a data foundation for formulating effective land management strategies, which can help improve the sustainable development of grasslands in desert areas.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"276 ","pages":"Article 121489"},"PeriodicalIF":7.7,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
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