Alexey V. Alekseenko, Maria M. Machevariani, Jaume Bech, Daniel Karthe
{"title":"Pollution of coal mine soils: global reference concentrations of chemical elements","authors":"Alexey V. Alekseenko, Maria M. Machevariani, Jaume Bech, Daniel Karthe","doi":"10.1007/s12665-025-12160-0","DOIUrl":"10.1007/s12665-025-12160-0","url":null,"abstract":"<div><p>Despite global efforts to phase out coal, the world’s coal production and consumption reached a record high in 2022. Even though soil pollution around collieries stands in the shadow of greenhouse gas emissions, the anthropogenic geochemical impact of coal mining will persist for decades to centuries after the coal phaseout. Soils are of paramount significance when assessing the pollution of mining sites. This analysis provides a reference dataset for evaluating soil transformation in coal minescapes. Identification, screening, eligibility check, and extraction of data from articles published in peer-reviewed journals between 2000 and 2022 yielded a comprehensive dataset on the chemical composition of 13,925 soil samples from 55 mined coal fields in 32 countries of Eurasia, Africa, Australia, and the Americas. These carefully handpicked records allowed the calculation of mean concentrations for 41 chemical elements, alongside total organic carbon and a total of 15 rare-earth elements. The resulting dataset is of both fundamental geochemical and policy-relevant significance. The maximum enrichment of contaminated soils with As, Bi, Hg, Sb, and Se reveals the role of coals as the source of highly coalphile elements. Remediation guidelines can benefit from the dataset, e.g., for arsenic whose world average contents fall below the standards of Canada, Russia, and the USA. Regional soil quality criteria may incorporate these figures to update threshold levels for mining sites. Finally, for the areas of discovered coal reserves, the question “to mine, or not to mine” can be answered with higher certainty owing to the predicted levels of pollutant burden.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12665-025-12160-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073876","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}
{"title":"Identification of the small-scale scattered flash floods based on high-resolution DEM","authors":"Haiqing Yang, Yuling Xiao, Xingyue Li, Nian Chen","doi":"10.1007/s12665-025-12308-y","DOIUrl":"10.1007/s12665-025-12308-y","url":null,"abstract":"<div><p>Flash floods have often occurred in small-scale scattered areas that often lack hydrological, rainfall and geotechnical data. Under extreme rainfall conditions, evaluating flash flood susceptibility in this region has been a major challenge in current research. Building on this, high-resolution DEM data, combined with the random forest (RF) model optimized by grid search (GS) and a feature selection algorithm, are used to identify small-scale scattered flash floods. At the same time, the prediction effect of the model established by low-resolution and high-resolution DEM data on the flash flood in Taibai Creek small watershed is compared. The results showed that 13 conditioning factors influence the occurrence of flash flood, among which distance to ravine (D2R) is the most important factor affecting the flash flood sensitivity of small watersheds. Evaluating flash floods in small watersheds using high-resolution DEM data combined with the random forest algorithm is feasible. The model demonstrates strong predictive performance, achieving an AUC value of 97.2% in the Taibai Creek small watershed. Low-resolution DEM data lead to inaccurate hazard assessment results. The spatial distribution characteristics of the susceptibility map constructed using high-resolution DEM data are highly consistent with observations in the small watershed. This study helps improve the assessment of geological disasters in small watersheds and addresses the over-identification issue of high-risk areas in previous susceptibility analysis.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073877","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}
Daniel Souza dos Santos, Kátia Leite Mansur, Jhone Caetano de Araújo, Elisa Elena de Souza Santos, Neila Nunes Ferreira
{"title":"The importance of the subindices on quantitative assessment of geodiversity: a methodological discussion and application to the Geopark Costões e Lagunas, SE Brazil","authors":"Daniel Souza dos Santos, Kátia Leite Mansur, Jhone Caetano de Araújo, Elisa Elena de Souza Santos, Neila Nunes Ferreira","doi":"10.1007/s12665-025-12291-4","DOIUrl":"10.1007/s12665-025-12291-4","url":null,"abstract":"<div><p>The last decades witnessed methodological advances concerning the creation of quantitative geodiversity maps, which represent the quantity and spatial distribution of abiotic elements. However, there are still issues regarding the creation of these maps. This work presents the geodiversity index map of the Geopark <i>Costões e Lagunas</i>, located in Rio de Janeiro State, Brazil. The map was generated through four subindices: lithological, geomorphological, pedological, and hydrological. The quantification method involved overlaying a regular grid (2,5 × 2,5 km grid cells) onto thematic maps representing the subindices, which is the most common method to generate geodiversity index maps. This resulted in five maps: geodiversity index, and the four subindex maps. We argue that the subindices should not be simply used as steps to achieve the final product, since they are relevant on their own. Therefore, attention should be given both to the methodological procedures for their creation and to the generated results. The manuscript discusses the selection of subindices; potential errors for counting a single element more than once; the notion that a geodiversity index map may hide areas that are important due to specific components; and the importance of using subindex maps as relevant results and not only as secondary products. These discussions are intended to contribute to the methodological consolidation concerning the creation of geodiversity index maps, which are acknowledged as important environmental management tools for displaying the richness and spatial distribution of the abiotic environment.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074105","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}
Jiří Brychta, Jan Vopravil, Martina Brychtová, Jana Kozlovsky Dufková, Jana Podhrázská, Milada Šťastná, Jan Pacina, Jan Popelka, Tadeáš Děd, Petr Zálešák, Martina Urbanová, Alžběta Maxianová, David Kincl, Tomáš Khel
{"title":"Down-scaling method for transformation of national soil maps into spatially distributed values of soil erodibility factor according to terrain morphology using GIS tools","authors":"Jiří Brychta, Jan Vopravil, Martina Brychtová, Jana Kozlovsky Dufková, Jana Podhrázská, Milada Šťastná, Jan Pacina, Jan Popelka, Tadeáš Děd, Petr Zálešák, Martina Urbanová, Alžběta Maxianová, David Kincl, Tomáš Khel","doi":"10.1007/s12665-025-12298-x","DOIUrl":"10.1007/s12665-025-12298-x","url":null,"abstract":"<div><p>With the current advancements in GIS and remote sensing methods, especially the use of high-precision LiDAR data, there is a significant disparity in the accuracy of morphological and soil data in erosion assessment. In current practice, a soil geospatial database is used to determine erodibility (K factor), often causing step changes in value within a field. However, soil properties influencing the K factor typically vary smoothly with terrain morphology and the soil catena pattern. Terrain morphology should therefore be taken into account, and it will lead to a more precise spatial distribution of K-factor values, significantly refining soil loss calculations and erosion control planning. For this purpose, the Czech Soil-Morphological Geospatial Database containing 1,417 soil samples was created. All soil samples were analyzed in the laboratory, and their K values were linked to morphometric characteristics (MMCH) based on geographical coordinates. The correlation dependences of the MMCH and spatial changes of K values, as deviations from the average values for the drainage areas within the closed erosion units, were calculated. The results of the methodology validation show a statistically high significant dependence between the K values obtained from field measurements and the values generated by the K-terrain model, created to automate the calculation. The tool can be used for down-scaling of K factor maps of large areas according to digital terrain model. To allow it to be applied more effectively to land management, a map with K terrain values for the entire Czech Republic was created with a resolution of 10 m.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12665-025-12298-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074113","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}
{"title":"Field experiment and numerical simulation on sequence dewatering of a sand inrush tunnel under high water pressure in semi-diagenetic rock: a case study","authors":"Jianxiu Wang, Qianyuan Zhang, Minlin Lei, Jinsong Xu, Hua Lei, Ansheng Cao, Yanxia Long","doi":"10.1007/s12665-025-12245-w","DOIUrl":"10.1007/s12665-025-12245-w","url":null,"abstract":"<div><p>The semi-diagenetic sandstone stratum has the characteristics of weak cementation and low strength. Gushing induced sand inrush in semi-diagenetic surrounding rock under high water pressure is one of the most difficult worldwide disasters during tunnelling. In the construction of Wangjiazhai Tunnel in Lincang-Qingshuihe expressway, gushing and sand inrush disasters in semi-diagenetic surrounding rock occurred numerous times under high water pressure causing serious economic loss, environment influence and construction delay. Conventional grouting reinforcement and drainage measures in tunnel cannot effectively solved the disaster problem resulting in repeated gushing and sand inrush, rescue and re-excavation without confidence construction period. In order to solve the surge and sand inrush disaster problem of the tunnel, this study proposed a surface ultra-deep pumping well dewatering method. The pumping well exceeding 250 m deep was designed and sequentially pumping scheme was adopted adapted to the progress of the excavation face. Three deep wells were successfully installed, and pumping experiments was carried out which inversed hydraulic parameters and confirmed the feasibility of well structure. The pumping capacity of these wells exceeding 700 m<sup>3</sup>/d and a maximum drawdown of 70 m. Based on the field experiments, a sequential dynamic dewatering scheme was proposed. The sequential dynamic dewatering scheme was verified by numerical simulation. The results show that this scheme can reduce the groundwater level above the tunnel by more than 50 m and effectively reduce the groundwater level in front of the tunnel excavation face. The design ideas and results of this study provide a reliable solution for the control of tunnel surge and sand inrush disasters under similar challenges.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12665-025-12245-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074114","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}
{"title":"Response of cultivation suitability for Polygonatum kingianum to climate change in China","authors":"Mingyu Zhao, Hao Jia, Jiongchao Zhao, Yixuan Wang, Iqra Laraib, Xiaoyu Shi, Jiale Hao, Qingquan Chu","doi":"10.1007/s12665-025-12304-2","DOIUrl":"10.1007/s12665-025-12304-2","url":null,"abstract":"<div><p><i>Polygonatum kingianum</i> is an important cultivated Chinese medicinal herb in southwest China. Assessing the impact of climate change on its cultivation suitability is crucial for optimizing cultivation locations, developing climate-appropriate strategies, and improving both yield and quality. In this study, we employed the MaxEnt model and utilized comprehensive datasets, including 222 occurrence data of <i>P. kingianum</i>, climate data from 707 meteorological stations, soil characteristics, and topography, to evaluate changes in the cultivation suitable distribution in China from 1961 to 2020 at a 1 km<sup>2</sup> spatial resolution. Our findings revealed that solar radiation from June to October, precipitation from September to November, elevation, isothermality, and precipitation of the coldest quarter were the main environmental variables influencing the cultivation suitability of <i>P. kingianum</i>. The cultivation suitable areas for <i>P. kingianum</i> were primarily located in the southwest mountainous regions of China, encompassing Yunnan, Guizhou, central and eastern Sichuan, and Chongqing Province, with a total coverage of 10.05 × 10<sup>5</sup> km<sup>2</sup> (5.53 × 10<sup>5</sup> km<sup>2</sup> in forested areas). Over the past 60 years, the cultivation suitability for <i>P. kingianum</i> has increased in the western, northern, and eastern boundaries due to a decrease in solar radiation from June to October. However, it has declined in the central area due to a decrease in precipitation from September to November. The findings of this research contributed to the development of effective cultivation plans and offer guidance for the sustainable management of <i>P. kingianum</i> resources in the face of climate change.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12665-025-12304-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074106","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}
Yang Yang, Wentao Xu, Xiaozhao Li, Xiaodong Ma, Chao-Sheng Tang
{"title":"Human-machine interactive refined identification of complex rock discontinuities using photogrammetric techniques: Case studies from a candidate HLW repository site in China","authors":"Yang Yang, Wentao Xu, Xiaozhao Li, Xiaodong Ma, Chao-Sheng Tang","doi":"10.1007/s12665-025-12287-0","DOIUrl":"10.1007/s12665-025-12287-0","url":null,"abstract":"<div><p>The natural discontinuities present within the surrounding rock significantly influence the integrity of the rock mass, particularly in underground rock engineering, where these discontinuities serve as critical geological structures that can lead to tunnel destabilization and facilitate groundwater movement. This paper systematically presents a methodology for the fine identification of complex discontinuities in surrounding rock using close-range photogrammetry. Firstly, the photogrammetry-based method tailored for various rock engineering scenarios and the 3D digital reconstruction technology specifically devised for surrounding rock images are presented. Building upon this foundation, we propose a human–machine interaction method aimed at the meticulous identification and extraction of discontinuities in surrounding rock. This method comprises several key steps: (1) enhancement of the Laplace smoothing algorithm to eliminate noise of non-rock structures; (2) segmentation and detection of discontinuities; (3) labeling and assignment of key feature points associated with these discontinuities; and (4) identification and fitting of the identified discontinuities. To investigate the performance of the proposed methods, we selected two representative cases: a section of an underground excavation tunnel and a surface granite outcrop located at China’s first high-level waste geological disposal site. The results demonstrate that employing high-resolution images combined with high-precision point clouds effectively captures intricate texture details associated with discontinuities. The proposed approach exhibits exceptional performance in the fine identification and extraction of complex discontinuities, with interpreted discontinuity orientations aligning well with in-site geological compass measurements. In comparison to the widely utilized state-of-the-art Discontinuity Set Extractor (DSE), the method presented herein achieves significant improvements in both identification efficiency and result visualization. This advancement contributes to addressing challenges associated with fine identification of complex linearly exposed discontinuities. Overall, this study offers a convenient and cost-effective solution for accurately identifying complex exposed planar and linear discontinuities encountered in rock engineering applications.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143949610","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}
Yue Wang, Haowei Yuan, Yang Wang, Zhihui Qu, Rui Qi, Wei Du, Ying Zhang
{"title":"Investigation and evaluation of manganese background value of shallow groundwater in jidong plain and study on the causes of high background value","authors":"Yue Wang, Haowei Yuan, Yang Wang, Zhihui Qu, Rui Qi, Wei Du, Ying Zhang","doi":"10.1007/s12665-025-12311-3","DOIUrl":"10.1007/s12665-025-12311-3","url":null,"abstract":"<div><p>Heavy metal contamination of groundwater is a major challenge to ensuring a safe global water supply. Mn<sup>2+</sup> ions have become the main contributing indicator of shallow groundwater exceeding Class III water in the Jidong Plain, posing a threat to the local ecological environment and the health of residents. In this study, the distribution characteristics and influencing factors of Mn<sup>2+</sup> were investigated based on the water chemistry analysis and geological conditions of 171 shallow groundwater samples. The study used mathematical and statistical methods to calculate the background values and found that 66% of the groundwater was unsuitable for direct drinking through the EWQI water quality evaluation method, and the high-Mn groundwater was mainly distributed in the coastal areas. The results show that the migration and enrichment of Mn<sup>2+</sup> are closely related to the nature of the overburden and the conditions of groundwater runoff. Long-term monitoring of Mn<sup>2+</sup> content and management measures is recommended to ensure the safety of groundwater quality. The results of this study can provide a scientific basis for further rational evaluation of the shallow groundwater quality and the degree of groundwater pollution in the Jidong Plain.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073767","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}
Nobin Chandra Paul, G. P. Obi Reddy, Nirmal Kumar, K. Sammi Reddy, Bhaskar Bharat Gaikwad, Dhananjay D. Nangare, N. G. Patil, D. S. Mohekar
{"title":"Mapping and assessment of abiotic stresses in hot semi-arid ecosystem of western India using analytical hierarchy process and machine learning models","authors":"Nobin Chandra Paul, G. P. Obi Reddy, Nirmal Kumar, K. Sammi Reddy, Bhaskar Bharat Gaikwad, Dhananjay D. Nangare, N. G. Patil, D. S. Mohekar","doi":"10.1007/s12665-025-12272-7","DOIUrl":"10.1007/s12665-025-12272-7","url":null,"abstract":"<div><p>Abiotic stress refers to non-living environmental factors that adversely affect crop growth, development, and productivity. Accurate mapping of abiotic stresses is essential for effective agricultural planning and resource management. This article introduces a novel approach for abiotic stress mapping by integrating various terrain, climatic, pedological and vegetation parameters using the analytical hierarchy process (AHP) and AHP-integrated machine learning (ML) models for the Pune district, a hot semi-arid ecosystem of western India. The abiotic stress map was generated through three key steps: first, datasets acquisition and processing, where relevant thematic layers were collected and pre-processed; second, AHP-based weightage assignment and consistency analysis, where thematic layers and their sub-classes were assigned, weights based on expert judgment, and consistency was verified; and third, generation of the abiotic stress map using the weighted sum approach. The final abiotic stress map was generated by integrating the reclassified weighted thematic layers. Furthermore, the result of AHP was used with other thematic layers to build AHP-integrated ML models. The generated map was validated using high-resolution Google Earth imagery at randomly selected locations to ensure robust verification. A receiver operating characteristic (ROC) curve was created with these selected points to confirm the model’s ability to effectively discriminate between different stress levels. The results indicate that high and very high-stress zones are predominantly located in the southern and southeastern parts of the district, mainly in Purandar, Baramati, Indapur, and Daund tehsils, where drought, shallow soils, and low annual rainfall (< 550 mm) are prevalent. The study demonstrates the potential of the AHP and combined ML models in abiotic stress mapping and identification of hot spots with reasonable accuracy and the findings of the study can be applied to develop combating strategies to reduce the impact of abiotic stress on agricultural systems.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143949671","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}
Aishwarya Soumitra Kar, Priyanka Balan, M. K. Das, S. Jeyakumar, R. K. Bajpai, M. K. Saxena
{"title":"Understanding of Cs(I) and Am(III) retention behaviour on Vindhyan argillaceous clay for evaluating its suitability for nuclear waste management","authors":"Aishwarya Soumitra Kar, Priyanka Balan, M. K. Das, S. Jeyakumar, R. K. Bajpai, M. K. Saxena","doi":"10.1007/s12665-025-12269-2","DOIUrl":"10.1007/s12665-025-12269-2","url":null,"abstract":"<div><p>The global investigation of geological barriers is advancing for their use in nuclear waste management. Argillaceous clay-based repositories appear to be a suitable and viable option for the management of high-level nuclear waste (HLW). The retention behaviour of Cs(I) and Am(III) on Vindhyan argillaceous clay has been examined from this perspective. The characterization of Vindhyan argillaceous clay indicated that it mostly comprises illite (25%) and quartz (75%), with a cation exchange capacity (CEC) of 210 meq kg<sup>−1</sup>, which is notably higher compared to other clays. The investigation of the influence of time, pH, ionic strength, radionuclide concentration, and temperature on the sorption of Cs(I) and Am(III) by Vindhyan argillaceous clay indicated that Cs(I) sorption occurs through ion exchange, whereas Am(III) sorption become apparent through both ion exchange and surface complexation. Thermodynamic parameters for the sorption reactions were derived from equilibrium constants determined by modelling the profiles of Cs(I) and Am(III). The sorption of Cs(I) was enthalpy-driven, whereas the sorption of Am(III) was entropy-driven.</p></div>","PeriodicalId":542,"journal":{"name":"Environmental Earth Sciences","volume":"84 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12665-025-12269-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073765","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}