Environmental Geochemistry and Health最新文献

{"title":"pH induced incongruent-dissolution impacts Al-ferrihydrite transformations and As mobilization.","authors":"Shanglin Yu","doi":"10.1007/s10653-025-02415-x","DOIUrl":"10.1007/s10653-025-02415-x","url":null,"abstract":"<p><p>This study investigated the role of Al and As fate during the transformation process of ferrihydrite influenced by different pH values under oxic conditions. The results indicate that the Al doping greatly enhanced the transformation of ferrihydrite (Fh) to Al-substituted goethite at all acidic or alkaline pH values under oxic conditions by promoting the incongruent dissolution and reprecipitation reactions of Al-substituted ferrihydrite (AlFh). Under acidic conditions, the preferential dissolution of structural Fe (4.73 mg/L) from AlFh occurs, whereas under alkaline conditions, the preferential dissolution of structural Al (1.25 mg/L) takes place. In contrast, under neutral conditions, the low solubility of Fh and AlFh induces the significant particle assembly, with Fe/Al minerals primarily transforming into goethite through oriented aggregation. As predominantly remains in an adsorbed state at all pH values during the transformation of Fh and AlFh, with the highest proportion of adsorbed As (86.9-96.7%) observed under neutral conditions. During the aging process, the adsorbed As gradually transforms into non-extractable As, and the changes in As speciation within Fe/Al minerals are closely coupled with the transformation of AlFh and Fh. Under alkaline and acidic conditions, the proportion of non-extractable As in the transformation products of Fh and AlFh increases by 14.02-19.72% and 12.27-16.28%, respectively, while under neutral conditions, it increases only by 12-13.02%. Therefore, regulating soil pH can partially modify As speciation and mitigate its environmental impact by altering the mineral transformation process. The results of this study facilitate better understanding of the role of Al substitution in the transformation of Fh and the cycling of As in the environment.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 4","pages":"108"},"PeriodicalIF":3.2,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143572462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Research on the traceability and treatment of nitrate pollution in groundwater: a comprehensive review.","authors":"Yuhao Liu, Yu Zhang, Haiyang Lv, Lei Zhao, Xinyi Wang, Ziyan Yang, Ruihua Li, Weisheng Chen, Gangfu Song, Haiping Gu","doi":"10.1007/s10653-025-02412-0","DOIUrl":"10.1007/s10653-025-02412-0","url":null,"abstract":"<p><p>The preservation of groundwater quality is essential for maintaining the integrity of the water ecological cycle. The preservation of groundwater quality is crucial for sustaining the integrity of the water ecological cycle. Nitrate (NO₃^-) has emerged as a pervasive contaminant in groundwater, attracting significant research attention due to its extensive distribution and the potential environmental consequences it poses. The primary sources of NO₃^- pollution include soil organic nitrogen, atmospheric nitrogen deposition, domestic sewage, industrial wastewater, landfill leachate, as well as organic and inorganic nitrogen fertilizers and manure. A comprehensive understanding of these sources is imperative for devising effective strategies to mitigate NO₃^- contamination. Technologies for tracing NO₃^--polluted groundwater include hydrochemical analysis, nitrogen and oxygen isotope techniques, microbial tracers, and numerical simulations. Quantitative isotope analysis frequently necessitates the application of mathematical models such as IsoSource, IsoError, IsoConc, MixSIR, SIAR, and MixSIAR to deduce the origins of pollution. This study provides a summary of the application scenarios, as well as the strengths and limitations of these models. In terms of remediation, pump and treat and permeable reactive barrier are predominant technologies currently employed. These approaches are designed to remove or reduce NO₃^- concentrations in groundwater, thereby restoring its quality. The study offers a systematic examination of NO₃^- pollution, encompassing its origins, detection methodologies, and remediation approaches, highlighting the role of numerical simulations and integrating multidisciplinary knowledge. Additionally, this review delves into technological advancements and future trends concerning the detection and treatment of NO₃^- pollution in groundwater. It proposes methods to control the spread of pollution and acts as a guide for identifying and preventing pollution sources.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 4","pages":"107"},"PeriodicalIF":3.2,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143572469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Hydrogeochemical characterization and potential geogenic source of fluoride contamination in Gariaband district of southern Chhattisgarh, India.","authors":"S Sooraj, Jugina Thomas, Manash Protim Baruah","doi":"10.1007/s10653-025-02402-2","DOIUrl":"10.1007/s10653-025-02402-2","url":null,"abstract":"<p><p>Fluoride contamination of groundwater exerts serious health concerns in developing countries like India, where surface water resources in general are not considered for domestic consumption. The present investigation attempts to evaluate the groundwater quality in terms of fluoride contamination in Deobhog and adjoining areas in Gariaband district, Chhattisgarh. A total of 68 groundwater samples were collected both in the pre- and post-monsoon period and analyzed for different physicochemical parameters like Temperature, pH, EC, TDS, Na⁺, K⁺, Ca²⁺, Mg²⁺, HCO₃^-, NO₃^-, Cl^-, SO₄^2-, and F^-. The results reveal that the cation abundance is in the order of Ca²⁺ > Na⁺ > Mg²⁺ > K⁺, and that for anions, it is HCO₃^- > Cl^- > SO₄^2- > NO₃^- > F^-. Hydrochemical characterization shows that the water is dominantly calcium bicarbonate type in general, irrespective of their fluoride concentration. The source of the dissolved constituents in water is identified to be due to rock-water interaction. Hydrochemical processes like ion exchange, along with carbonate and silicate weathering, are responsible for major cations and anions concentrations in fluoride-rich water. Changes in alkalinity of water accelerate the dissolution of fluoride from fluoride-bearing mineral phases, thus increasing the concentration in water. The highest concentration of fluoride is observed at Nangaldehi village (4.9 mg L^-1 post-and 3.83 mg L^-1 pre-monsoon), in the north-eastern part where dental fluorosis is noted in residents of the affected area. Lithounits like mafic granulite, Dongargarh granite, charnockite, etc. have a higher concentration of fluoride due to the presence of minerals such as apatite, biotite, hornblende, etc., confirmed through detailed petrographic studies. The fluoride from these sources also dispersed into the residual soil developed over the weathered rocks. The water in the area is observed to be undersaturated with fluoride, which signifies the area's proneness to more fluoride contamination in the near future. The contaminated aquifers are structurally controlled, and the shallow, unconfined aquifers are less contaminated with fluoride than those that are present at an elevation around 200 m above mean sea level. This study provides first-hand information about the fluoride contamination in the area and established its geogenic origin. It also emphasizes to explore the possibility of alternate surface water sources for the affected areas.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 4","pages":"106"},"PeriodicalIF":3.2,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143566552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 salinity sources in groundwater at Golgohar Mine using self-organizing maps (SOM) and correlation analysis: a hydrogeochemical and isotopic approach, south-central Iran.","authors":"Farnoosh Jafari, Hamid Reza Nassery, Farshad Alijani, Saeid Maknooni Gilani","doi":"10.1007/s10653-025-02414-y","DOIUrl":"10.1007/s10653-025-02414-y","url":null,"abstract":"<p><p>Understanding the hydrogeological regime and identifying the sources of salinity in mine pits are crucial for effective groundwater management and mining operations. This study investigates the hydrogeochemistry of the Golgohar Mines in south-central Iran, focusing on Mine Pit No. 2 and the Kheirabad Salt Pan, using a multi-proxy approach that includes Self-Organizing Maps (SOM), Hierarchical Clustering Analysis (HCA), hydrochemical diagrams, and stable isotopic analysis (δ²H, δ¹⁸O) and tritium. 20 sampling points were selected for hydrogeochemical analyses, 16 sampling points for stable isotopes of δ¹⁸O and δ²H, and 4 samples for the tritium radioisotope, with sampling conducted during both wet and dry seasons. Based on ionic ratio diagrams, halite dissolution is the predominant process contributing to salinity, with additional influences from reverse cation exchange and gypsum dissolution. The main type and facies of all groundwater samples in the region are Na-Cl and Ca-Cl. The alignment of self-organizing maps with HCA and the hydrochemical classification identified four distinct water clusters: Cluster I is associated with the Kheirabad Salt Pan, Cluster II originates from the hard rock aquifer, Cluster III results from the mixing of multiple sources, including the alluvial aquifer, hard rock aquifer, and brine from the Kheirabad Salt Pan, and Cluster IV is linked to the alluvial aquifer. A hydraulic and hydrogeochemical relationship was observed between the Kheirabad Salt Pan and Mine Pit No. 2, while the main source of salinity in the hard rock aquifer appears to be unrelated to the Kheirabad Salt Pan, potentially involving extensive mixing with other waters. The study highlights the effectiveness of SOM and HCA in elucidating hydrochemical processes in complex mining environments, offering valuable insights for groundwater management.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 4","pages":"105"},"PeriodicalIF":3.2,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143566558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Hydrogeochemical processes regulating groundwater quality and its suitability for drinking purposes in the recent alluvial plain, Blue Nile Region, Sudan.","authors":"Yousif Hassan Mohamed Salh, Chunli Su, Javed Iqbal, Usman Sunusi Usman, Mohamed Hussein Yousif, Orwa Ismail","doi":"10.1007/s10653-025-02409-9","DOIUrl":"10.1007/s10653-025-02409-9","url":null,"abstract":"<p><p>Groundwater is becoming a critical freshwater source in the Blue Nile Region, Sudan. However, overexploitation and contamination increasingly threaten its sustainability. This study evaluates the hydrogeochemical processes influencing groundwater and its suitability for drinking purposes in the recent alluvial plain. A total of 342 groundwater samples were collected from domestic wells and monitoring boreholes in 2022 for hydrochemical and multivariate statistical analysis. The results revealed that the groundwater is predominantly of HCO₃-Ca·Mg and HCO₃-Ca·Na facies, reflecting the influences of natural processes like mineral dissolution and ion exchange. The key factors affecting groundwater quality include rock-water interactions and anthropogenic influences. Most groundwater samples complied with the World Health Organization (WHO, WHO. (2022). Fourth edition incorporating the first and second addenda Guidelines for drinking-water quality) and Sudanese drinking water standards. However, F^- concentrations exceeding permissible levels were detected in northeastern and southwestern boreholes, posing potential health risks. Elevated total dissolved solids (TDS) were linked to mineral dissolution and agricultural runoff. The Water Quality Index (WQI) categorized 39.42% of samples as excellent, 50.72% as good, and 9.57% as poor to very poor, with 0.29% unsuitable for drinking. Areas with low human activities exhibited better water quality, while compromised samples correlated with nitrate contamination, salinity, and poor waste management practices. This study provides a robust foundation for developing sustainable groundwater management strategies to mitigate contamination risks and secure safe drinking water access.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 4","pages":"102"},"PeriodicalIF":3.2,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143556202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Changes in the spectroscopic response of soil organic matters by PBAT microplastics regulated the Cd adsorption behaviors in different soils.","authors":"Rongxin Xie, Ming Li, Zhiwang Feng, Jiayi Xie, Akaninyene Joseph, Minori Uchimiya, Yimin Wang","doi":"10.1007/s10653-025-02417-9","DOIUrl":"10.1007/s10653-025-02417-9","url":null,"abstract":"<p><p>Contamination of microplastics (MPs) and heavy metals occurs frequently in terrestrial ecosystems, but their interactions remain unclear. A 60-day incubation experiment was conducted to study the behaviors of cadmium (Cd) in polybutylene adipate terephthalate (PBAT) MPs-contaminated soils, with different doses (1, 10%) and sizes (150-300 and 75-150 μm). Soil chemical properties, including the three-dimensional fluorescence of dissolved organic matter (DOM) and microbial diversity in both farmland and woodland soils were analyzed. Results showed that soil properties, especially the components and fluorescence characteristics of DOM varied with soil types and PBAT properties. Higher soil chemical properties and microbial diversity were found in woodland soils. The soluble microbial by-product substances and humic acid-like substance were dominated in soil DOM, while the proportions of fulvic/humic-acid like substances and soil humification decreased with the addition of 10% PBAT. Soil microbial diversity increased with doses of PBAT, but not sensitive to the sizes of PBAT. The adsorption capacity of Cd decreased with the addition of PBAT, especially in the 10% and 75-150 μm PBAT treatments. Both Langmuir and Freundlich models fitted well with the adsorption isotherms of Cd. Multiple correlation analyses showed that low molecular weight fractions, humus index of DOM and soil microbial diversity such as Shannon, Simpson, and Pielou all positively correlated with the adsorption behaviors of Cd in PBAT-contaminated soils. Biodegradable MPs can change soil quality and promote the release of soil Cd, which deserves further research attention.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 4","pages":"103"},"PeriodicalIF":3.2,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143556197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Advancing methodologies for assessing the impact of land use changes on water quality: a comprehensive review and recommendations.","authors":"Silin Su, Kai Ma, Tianhong Zhou, Yuting Yao, Huijuan Xin","doi":"10.1007/s10653-025-02413-z","DOIUrl":"10.1007/s10653-025-02413-z","url":null,"abstract":"<p><p>With increasing scholarly focus on the ramifications of land use changes on water quality, although substantial research has been undertaken, the findings demonstrate pronounced spatial variability and the heterogeneity of research methodologies. To address this critical gap, this review offers a rigorous evaluation of the strengths and limitations of current research methodologies, providing targeted recommendations for refinement. It systematically assesses the existing body of literature concerning the influence of land use changes on water quality, with particular emphasis on the spatial heterogeneity of research results and the uniformity of employed methodologies. Despite variations in geographical contexts and research subjects, the methodological paradigms remain largely consistent, typically encompassing the acquisition and analysis of water quality and land use data, the delineation of buffer zones, and the application of correlation and regression analyses. However, these approaches encounter limitations in addressing regional disparities, nonlinear interactions, and real-time monitoring complexities. The review advocates for methodological advancements, such as the integration of automated monitoring systems and IoT technologies, alongside the fusion of deep learning algorithms with remote sensing techniques, to enhance both the precision and efficiency of data collection. Furthermore, it recommends the standardization of buffer zone delineation, the reinforcement of foundational water quality assessments, and the utilization of catchment-scale analyses to more accurately capture the influence of land use changes on water quality. Future inquiries should prioritize the development of interdisciplinary ecological models to elucidate the interaction and feedback mechanisms between land use, water quality, and climate change.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 4","pages":"101"},"PeriodicalIF":3.2,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143556195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 deep learning models for predicting elemental concentrations in iron ore mine using XRF data: a cost-effective alternative to ICP-MS methods.","authors":"Amirhossein Najafabadipour, Fereshteh Hassanzadeh, Meghdad Kordestani","doi":"10.1007/s10653-025-02419-7","DOIUrl":"10.1007/s10653-025-02419-7","url":null,"abstract":"<p><p>Accurate elemental analysis is a critical requirement for mineral exploration, particularly in regions like Iran, where the mining sector has experienced a substantial increase in exploration activities over the past decade. Inductively Coupled Plasma Mass Spectrometry (ICP-MS) methods have long been regarded as the gold standard due to their high sensitivity and precision; however, their widespread adoption is often limited by high operational costs and complex sample preparation requirements. As Iran's mining industry shifts toward more efficient and sustainable practices-with quantitative studies indicating a significant demand for cost-effective analytical solutions, there is a pressing need for alternative approaches that maintain the analytical strengths of ICP-MS while mitigating its limitations. This demand has paved the way for integrating advanced deep learning techniques with conventional methods, offering promising new avenues for cost-effective and rapid geochemical analysis. This study proposes an advanced deep learning-based approach for predicting critical elements-such as arsenic (As), lithium (Li), antimony (Sb), and vanadium (V)-in the Gohar Zamin iron ore mining area in southwest Kerman, Iran. Using X-ray fluorescence (XRF) geochemical data as input, three deep learning models were developed and compared: Convolutional Neural Networks (CNN), Gated Recurrent Units (GRU), and Spatial Attention Networks (SAN). Among the models tested, the CNN demonstrated superior performance in predicting the concentrations of the target elements, achieving the lowest error rates and effectively capturing complex spatial patterns in the geochemical data. The model's ability to extract meaningful relationships from multidimensional data allowed it to outperform both the GRU and SAN models, particularly across low and high concentration ranges. Moreover, the results from CNN-based 3D modeling revealed significant potential for mineral exploration. This research introduces a novel AI-driven framework for utilizing low-cost XRF data in mineral prediction, reducing reliance on expensive analytical techniques while enhancing decision-making in mining operations. The proposed approach offers an efficient and environmentally friendly alternative for geochemical data analysis, contributing to more sustainable mineral exploration practices.Kindly check and confirm the corresponding author of the article and the first/last name of the authors are correctly identified.Checked and confirmed.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 4","pages":"104"},"PeriodicalIF":3.2,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143566545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Lithology as a factor for the distribution of metals in stream sediments associated with sediment-hosted Cu deposits: a case study from the Alta-Kvænangen tectonic window, northern Norway.","authors":"Laura Posarić, Sabina Strmić Palinkaš, Johan Hilmo, Željka Fiket, Andrea Čobić, Hana Fajković","doi":"10.1007/s10653-025-02387-y","DOIUrl":"10.1007/s10653-025-02387-y","url":null,"abstract":"<p><p>The Kåfjord area in northern Norway hosts numerous Cu deposits that were subjected to mining activities back in the nineteenth century. Relicts of the historical mining activity are still visible at several abandoned mines and associated mine waste disposal sites that may represent an environmental threat. The area was subjected to mining activities during the nineteenth century and abandoned mines and associated mine waste disposal sites still may represent a significant environmental threat. The Cu mineralization, found within the Paleoproterozoic Alta-Kvænangen Tectonic Window, primarily occurs as epigenetic sulfide-quartz-carbonate hydrothermal veins that crosscut the Kvenvik volcano-sedimentary complex and the overlying Storviknes sedimentary sequence. This study aims to determine the geochemical composition of stream sediments associated with the sediment-hosted Cu deposits and examine the role of host lithologies in the dispersion of elements associated with the deposits. Sediments from two streams and a river in the Kåfjord area were analyzed using phase and element analyses (aqua regia chemistry), complemented by a seven-step sequential extraction procedure. Results from Annaselva stream, draining Cu occurrences in the carbonate sediments of the Storviknes sequence, showed a significant positive correlation of Cu with mobile chalcophile elements (Pb, Zn, Ni, Tl, Hg, Ag, Sb, Bi) and lithophile elements (Sr, Ca, Ba, Al, K). In contrast, Brakkelva stream, draining the mafic volcanics of the Kvenvik complex, exhibited no statistically significant correlations between Cu and any of the analyzed elements. Møllneselva River, draining both lithologies, showed a strong Cu-Sc correlation, with principal component analysis indicating limited distinction between lithology-derived elements. These results did not completely align with statistical analysis outcomes highlighting the challenges of statistical data interpretation using a limited number of samples.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 4","pages":"97"},"PeriodicalIF":3.2,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11880057/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143540622","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}

{"title":"Toxicological effects of cobalt on common carp: oxidative stress, ionic imbalance, fatty acid disruption, and gill histopathology.","authors":"Feriel Ghribi, Safa Bejaoui, Imene Chetoui, Wafa Trabelsi, Dalya Belhassen, Chaima Ben Fayala, Samir Boubaker, Sami Mili, Nejla Soudani","doi":"10.1007/s10653-025-02407-x","DOIUrl":"10.1007/s10653-025-02407-x","url":null,"abstract":"<p><p>Cobalt (Co) is an essential element to fish and other organisms that become toxic at high concentrations. This element is emerging as a concerning pollutant in water bodies, potentially endangering the health of marine biota. The aim of this study was to investigate the short-term subcellular toxicity of cobalt in the common carp Cyprinus carpio (0, 1.13, 11.34, 22.68 and 45.37 µg/L of Co²⁺ for 72 h), with emphasis on oxidative balance (enzymatic and non-enzymatic antioxidants), fatty acid composition, Na⁺K⁺/Mg²⁺ATPases activities and histopathological changes. Co exposure increased the levels of the ferric reducing antioxidant power, hydrogen peroxide, malondialdehyde and protein carbonyl along with enzymatic and non-enzymatic antioxidant-related markers. The observed prooxidant-antioxidant imbalance in exposed fish was solidified by histological sections confirming alterations in the histomorphological structure of C. carpio gills. Results showed that increases in Co²⁺ exposure of fish altered the ATPases activities revealing changes in osmoregulation. Additionally, the analysis of fatty acids (FA) underscored shifts in the fish's fatty acid profile, which is indicative of Co²⁺ impact on C. carpio overall metabolism and immune response. Significant changes occurred in some major FA which were associated with lipid peroxidation increase and the inhibition of Na⁺K⁺ and Mg²⁺ ATPases activities. Overall, the current results suggest that the mechanism of Co²⁺ toxicity involves oxidative damage, disruption of ionic balance, cellular homeostasis and the normal physiological function of the fish gills.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 4","pages":"98"},"PeriodicalIF":3.2,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143540623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}