Environmental Geochemistry and Health最新文献

{"title":"The role of cationic bridges in enhancing sulfamethoxazole adsorption onto montmorillonite.","authors":"Qianhui Guan, Xiao Shu, Wensheng Wu, Yue Zhang, Chenhui Wang, Mingfu Li, Ni Liang, Quan Chen","doi":"10.1007/s10653-025-02366-3","DOIUrl":"10.1007/s10653-025-02366-3","url":null,"abstract":"<p><p>The coexistence and interaction of free metal cations in the environment can significantly affect the migration of organic pollutants, leading to varied effects depending on environmental conditions. However, the mechanisms affecting the adsorption of organic pollutants in the presence of metal ions remain poorly understood due to limited molecular-level studies. This study investigated the adsorption behavior of sulfamethoxazole (SMX) on montmorillonite (MT) at different pH values (1.6, 3.0, and 5.0) in the presence of three metal cations with different valences: Na⁺, Ca²⁺, and Cr³⁺. At pH 5.0, the adsorption of SMX by MT at pH 5.0 in Ca²⁺ and Cr³⁺ systems increased significantly-by 7.25 times and 47 times, respectively, compared to those at pH 1.6. In contrast, Na⁺ had a less pronounced effect on SMX adsorption. Density functional theory (DFT) calculations indicated that as the pH value increases, the interaction between SMX, metal ions, and MT strengthens. Furthermore, the adsorption binding energy of SMX in the high-valence Cr³⁺ system (- 94.51 kcal/mol) was significantly lower than in the low-valence Na⁺ system (- 36.55 kcal/mol). As pH and cation valency increased, the bonding density of cation bridges also increased, leading to a more substantial enhancement in SMX adsorption. This study provides insights into the adsorption mechanism of SMX on MT in the presence of metal cations, contributing valuable understanding of the environmental behavior of organic pollutants under varying cationic conditions.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 2","pages":"54"},"PeriodicalIF":3.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143001709","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":"Temporal and spatial variations of soil Se in China over the past half century and its influencing factors.","authors":"Xiangjun Wang, Yuexuan Wang, Minghuan Xu, Xianglei Cheng, Changmao Long, Lijun Wei, Baojun Zhang","doi":"10.1007/s10653-025-02365-4","DOIUrl":"10.1007/s10653-025-02365-4","url":null,"abstract":"<p><p>Soil serves as a significant reservoir of selenium (Se) and plays a crucial role for the entry of Se into the food chain. Therefore, it is of utmost importance to gain a deep understanding of the spatial and temporal variation of total soil Se content in China, as well as its influencing factors. This understanding is essential for the rational and efficient utilization of Se resources, the maintenance of ecological balance, and the preservation of human health in the future. Through a comprehensive literature search, relevant studies were identified, and information regarding soil total Se content, soil available Se content, soil pH, and soil organic matter (SOM) was extracted. The Mann-Kendall (M-K) test was employed to analyze the variation of total soil Se content, while Moran's I was used to examine the global and local spatial clustering characteristics of soil Se. The results indicate that the total Se content in China has shown an increase at different spatial and temporal scales, particularly in Central China. Furthermore, there is a significant difference in total Se content between cultivated soil and natural soil in Central China (P < 0.05). Additionally, soil physicochemical properties have been found to impact soil total Se content. Specifically, pH is negatively correlated with soil total Se content, while SOM is positively correlated with it (P < 0.05). Overall, the findings suggest that the total Se content in Chinese soil is increasing over time, and human agricultural activities and physicochemical properties of the soil, such as soil pH and SOM, likely influence the bioavailability of Se or the overall soil total Se content through their interaction with Se speciation in the soil to some extent. It is important to note that changes in environmental conditions may also have some degree of impact on the total Se content.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 2","pages":"55"},"PeriodicalIF":3.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143002462","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":"Sources identification and health risk assessment of heavy metals in total suspended particulates (TSP) in a geochemical anomaly area influenced by historical indigenous zinc smelting activities.","authors":"Qiuye Zhang, Hongyan Liu, Xiaozhui Ran, Faustino Dinis, Enjiang Yu","doi":"10.1007/s10653-025-02363-6","DOIUrl":"10.1007/s10653-025-02363-6","url":null,"abstract":"<p><p>The superposition of heavy metals (HMs) from multiple anthropogenic sources in geochemical anomaly areas makes it difficult to discriminate prime sources in atmospheric HMs. This study utilized a combination of microscopic features, positive matrix factorisation, and Pb isotope fingerprints to trace the main sources of HMs bound to total suspended particulates (TSP) at a pollution site (Msoshui: MS) and control site (Lushan: LS) in northwestern Guizhou. The results reveal that the concentrations of Cd, Pb, Cr, As, Cu, Ni, and Zn in the TSP of LS are 3.97, 94.25, 2.93, 26.51, 3.15, 3.23, and 122.08 ng m^-3, respectively, in the 5 years from 2018 to 2022, compared to 20.15, 960.28, 4.20, 41.50, 7.72, 2.95, and 1614.50 ng m^-3 in that of MS. In comparison with other cities and remote areas, the concentrations of TSP-bound Cd, Pb, As, and Zn at MS and LS are high. The microscopic morphology shows that atmospheric particles of LS are primarily derived from mineral dust, whereas those of MS are mainly affected by multiple anthropogenic sources. The results of the positive matrix factorisation model (PMF) suggest that the predominant sources of TSP-bound HMs at MS are industrial sources, mixed sources (coal combustion and traffic sources), and mineral dust, reflecting the noticeable superposition of industrial sources compared to those at LS. The Pb isotope analysis demonstrates that TSP-bound Pb principally derive from surface soil (61.33%) and vehicle exhaust & dust from burning coal (38.67%) at LS, while it is mainly influenced by surface soil (29.21%), smelter dust (27.50%), and vehicle exhaust & dust from burning coal (43.29%) at MS. Moreover, it also indicates that the lingering effects of historical indigenous zinc smelting activities continue to impact the atmospheric and surface soil conditions in northwestern Guizhou Province. Risk assessment indicates that although the non-carcinogenic risk for each element is within acceptable limits, the total non-carcinogenic risk of HMs exceeds the minimal risk level, and Cd and As are the primary contributors.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 2","pages":"53"},"PeriodicalIF":3.2,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143002460","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":"Source-oriented health risk assessment of soil potentially toxic elements based on Monte Carlo simulation in the upper reaches of Wei River Basin, China.","authors":"Yuqi Zhang, Bing Jiang, Zongjun Gao, Jiutan Liu, Bo Jiang, Jianbin Zhang","doi":"10.1007/s10653-025-02361-8","DOIUrl":"10.1007/s10653-025-02361-8","url":null,"abstract":"<p><p>The natural environment and public health are gravely threatened by the enrichment of soil potentially toxic elements (PTEs). To explore the contamination level, sources and human health risks posed by PTEs, high-density soil sampling was carried out in the upper Wei River region (UWRR). The results demonstrated that the pollution risk and ecological risk in UWRR as a whole were at a low level, but there were moderate or higher ecological risks of Hg and Cd in some areas. Source analysis of soil PTEs was conducted via absolute principal component score multiple linear regression (APCS-MLR) and positive matrix factorization (PMF) receptor models. APCS-MLR identified three potential sources, while the source division of PMF model was more detailed, which identified four potential sources: mining, coal combustion, machinery manufacturing and agricultural sources, with contribution percentages of 31%, 3%, 37% and 29% respectively. According to the probabilistic human health risk assessment (HHRA), the non-carcinogenic risk for adults was negligible, while that for children cannot be negligible. There were total carcinogenic risks for all populations, but the risk level was acceptable. The total cancer risk for children surpassed 1E-04 by 31.29%, implying a significant carcinogenic risk. Machinery manufacturing was found to be the most significant anthropogenic source of health concerns. This study offers an illustration of probabilistic risk assessment based on sources. The results of the study are favorable to provide new perspectives and scientific reference for soil PTE risk assessment and pollution control.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 2","pages":"52"},"PeriodicalIF":3.2,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143002458","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":"Evaluation of Fenton-like reaction for sorption and degradation of kasugamycin in the presence of biochar.","authors":"Wei Zhang, Liqiang Cui, Jingwen Ma, Shuyan Cui, Guixiang Quan, Jinlong Yan, Fengfeng Sui, Hui Wang, Kiran Hina, Qaiser Hussain","doi":"10.1007/s10653-025-02357-4","DOIUrl":"10.1007/s10653-025-02357-4","url":null,"abstract":"<p><p>Although the use of biochar as an adsorbent for the removal of various pollutants from wastewater is well established, the use of biochar/modified biochar for the scavenging of antibiotics from aqueous media in the Fenton-like system receives less attention. The highest kasugamycin (KSM) adsorption capacity (5.0 mg g^-1) was obtained from the pristine biochar at the lowest initial pH of 3 in Fenton-like system. The Fenton-like system improved the KSM adsorption capacity of pristine biochar by 222.2%, 169.9%, and 159.9% at 25 °C, 35 °C, and 45 °C comparing to control, respectively, and it also increased adsorption capacity by 97.4%, 63.8%, and 56.8% comparing to modified biochar. The amounts of biochar applied and the Fenton-like system affected KSM mineralization and degradation. The KSM degradation products had a significant amount of small molecular organic matter (m/z 384) and a tetrahydropyran structure that was difficult to degrade. The highly efficient degradation of KSM in Fenton-like system can be attributed to the generation of large amounts of hydroxyl radical (·OH) and functional groups (C=C, C=O, etc.).</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 2","pages":"50"},"PeriodicalIF":3.2,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142982862","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":"Sustainable remediation of abandoned coal mines using vermicompost: a case study in Ledo coal mine, India.","authors":"Krishna Das, Sajan Kumar Dansena, Suryateja Pottipati, Krishna Chaitanya Maturi, Ganesh Chandra Dhal, Ajay S Kalamdhad","doi":"10.1007/s10653-024-02355-y","DOIUrl":"10.1007/s10653-024-02355-y","url":null,"abstract":"<p><p>Coal mining in India, especially open-cast mining, substantially strengthens the economy while concurrently causing environmental deterioration, such as soil pollution with toxic chemicals and heavy metals. This study sought to examine the efficacy of vermicompost as a remediation technique for Mine Tailing Soil (MTS) in the Ledo Coal Fields. During a 120-day duration, different concentrations of vermicompost (20%, 30%, and 40%) were administered to MTS, and the impacts on soil physicochemical parameters, fertility, and plant growth were evaluated. The findings indicated substantial enhancements in soil fertility, encompassing increased nutrient availability, improved water retention, and diminished bulk density. Plant species, including Abelmoschus esculentus, Solanum lycopersicum, and Delonix regia, showed substantial growth when subjected to 20% and 30% vermicompost amendments, with the 30% treatment producing the most remarkable outcomes. Furthermore, Risk Assessment Code values for soils amended with 20%, 30%, and 40% vermicompost were markedly diminished, reducing the bioavailability and mobility of heavy metals. The data indicate that vermicompost is an efficient and sustainable method for remediating MTS, alleviating heavy metal contamination, and enhancing plant development, thus addressing the environmental hazards of coal mining.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 2","pages":"51"},"PeriodicalIF":3.2,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142982897","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":"Evaluating the bioavailability of rare earth elements in paddy soils and their uptake in rice grains for human health risk.","authors":"Zzu-Ying Huang, Chien-Hui Syu, Zeng-Yei Hseu","doi":"10.1007/s10653-025-02360-9","DOIUrl":"10.1007/s10653-025-02360-9","url":null,"abstract":"<p><p>Rare earth elements (REEs) are a critical global focus due to their increasing use, raising concerns about their environmental distribution and human exposure, both vital to food safety and human health. Surface soil (0-30 cm) and corresponding rice grain samples (n = 85) were collected from paddy fields in Taiwan. This study investigated the total REE contents in soil through aqua regia digestion, as well as their labile forms extracted using 0.05 M ethylenediaminetetraacetic acid (EDTA), 0.10 M hydrogen chloride (HCl), and 0.01 M calcium chloride (CaCl₂). The REE concentrations in the rice grains (Oryza sativa L.) were also analyzed. The estimated daily intake (EDI) of REEs through rice consumption for males was 1.3 times higher than that for females. Children under 12 years of age, regardless of gender, had the highest EDI of REEs compared to other age groups. High rice consumption and a high proportion of children are potentially at higher risk for elevated REE exposure. The transport of REEs from soil to rice demonstrated their shift of fractionation by the lower ratio of light REEs and heavy REEs in rice grain compared to soil and their upper continental crust (UCC)-normalized patterns. Empirical equations were developed to estimate the concentrations of REEs in rice grains based on soil pH, clay content, organic carbon, cation exchange capacity, dithionite-citrate-bicarbonate extractable iron, and labile REEs. This study provides critical insights into the health risks of REEs, clarifying their human exposure and the bioavailability from paddy soil to rice.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 2","pages":"49"},"PeriodicalIF":3.2,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142978136","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":"Geochemical partitioning and leaching behaviour of geogenic contaminants from the partially weathered rocks in chronic kidney disease of unknown etiology (CKDu) endemic regions in Sri Lanka.","authors":"Manura Weerasinghe, Sandun Sandanayake, Anushka Upamali Rajapaksha, Meththika Vithanage","doi":"10.1007/s10653-024-02353-0","DOIUrl":"10.1007/s10653-024-02353-0","url":null,"abstract":"<p><p>Studies regarding geochemical partitioning and leaching behavior of Hofmeister ions, which is considered as a risk/causative factor for chronic kidney disease of unknown etiology (CKDu), are scarce. Therefore, Hofmeister ions' leaching behavior of partially weathered rocks from CKDu endemic (Girandurukotte) and non-endemic (Sewanagala) areas, Sri Lanka were compared. Rock mineralogy was analyzed using X-ray Diffraction, and total ion contents were determined using alkaline and acid digestions. Leaching experiments were conducted for powdered rocks using HCO₃^- rich water and deionized water (DI) to determine the kinetics of Hofmeister ion release into groundwater. Fluoride fractionation in rocks was determined through a sequential extraction. The most abundant ions in both rocks from CKDu endemic and non-endemic areas were Cl^-; possibly due to carbonate and silicate minerals and Mg²⁺; possibly due to biotite minerals. Maximum leaching capacities of Hofmeister ions; F^-, Cl^-, SO₄^2-, K⁺, Mg²⁺, Ca²⁺ were higher with HCO₃^- rich water compared to deionized water in both rocks from Girandurukotte (F^-_HCO3: 5.51 mg/kg > F^-_DI: 2.62 mg/kg) and Sewanagala (F^-_HCO3: 6.24 mg/kg > F^-_DI: 3.78 mg/kg). This F^- variation might be due to the higher exchangeable fraction in the rock from Sewanagala (2.027 mg/kg) compared to Girandurukotte (0.963 mg/kg). Although, the organic matter bound F^- fraction in the rock from Girandurukotte (47.62 mg/kg) was higher than that of Sewanagala (31.66 mg/kg). However, the cumulative effect of exchangeable, carbonate bound, Fe-Mn oxide bound, and organic matter bound F^- fraction in the rock from Girandurukotte was higher (52.6%) compared to Sewanagala, making F^- a possible risk factor for CKDu.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 2","pages":"48"},"PeriodicalIF":3.2,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142946481","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":"Assessment of groundwater chemistry to predict arsenic contamination from a canal commanded area: applications of different machine learning models.","authors":"Fazila Younas, Muhammad Fahad Sardar, Zahid Ullah, Jawad Ali, Xiaona Yu, Pengcheng Zhu, Weihua Guo, Khalid Mashay Al-Anazi, Mohammad Abul Farah, Zhaojie Cui","doi":"10.1007/s10653-024-02334-3","DOIUrl":"10.1007/s10653-024-02334-3","url":null,"abstract":"<p><p>Groundwater arsenic (As), contamination is a significant issue worldwide including China and Pakistan, particularly in canal command areas. In this study, 131 groundwater samples were collected, and three machine learning models [Random Forest (RF), Logistic Regression (LR), and Artificial Neural Network (ANN)] were employed to predict As concentration. Descriptive statistics helped to conclude that all of the samples were inside the permitted limit of WHO for pH, Ca, Mg, Turbidity, Cl, K, Na, SO₄, NO₃, F and beyond limit of WHO for EC, HCO₃, TDS, and As. RF suggested a median drop in Gini node impurity across all tree divisions. This predicted As contamination in samples due to presence of TDS, EC, HCO₃^- and turbidity in upper end of graph which expressed significance of these factors in contaminating water with Arsenic. Moreover, these factors were found positively correlated with Ar contamination. LR model expressed about best fitness of model. ANN classified large data set into two classes i.e. (1) Inside limit of WHO and (2) and outside limit of WHO. Total dissolved solids (TDS), turbidity, sodium (Na) and electrical conductivity (EC) were positively correlated with Ar (Arsenic concentration) in the collected samples. pH and K were negatively associated with Arsenic concentration of the observed samples. Confusion matrices and ROC-AUC scores evaluated that RF, model outperforming than LR, and ANN, in accuracy and sensitivity. Key variables influencing As concentration in the groundwater resources of the study area were identified, such parameters include TDS, chloride (Cl), bicarbonate (HCO₃^-) and turbidity. The study provided the complete profile of the 131 water samples which can be used to make strategies for the minimization of ground Water contamination for Rohri canal command area. Moreover, the steps can be taken to control the discussed parameters inside the WHO limit.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 2","pages":"46"},"PeriodicalIF":3.2,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142946702","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":"Biosorption performance toward Co(II) and Cd(II) by irradiated Fusarium solani biomass.","authors":"Abeer M Mousa, Ezzat A Abdel-Galil, Mostafa Zhran, Mohamed G Moussa","doi":"10.1007/s10653-024-02342-3","DOIUrl":"10.1007/s10653-024-02342-3","url":null,"abstract":"<p><p>Fusarium solani biomass plays a significant role in water pollution remediation due to its ability to sequester heavy metals, particularly cobalt (Co(II)) and cadmium (Cd(II)), which pose severe environmental and health risks. This study aimed to identify fungi from sewage-contaminated sites and evaluate their efficiency in absorbing and reducing Co(II) and Cd(II) ions. The biosorption potential of irradiated Fusarium solani biomass for removing Co(II) and Cd(II) ions from aqueous solutions was investigated. Six fungal isolates were screened, and the most promising isolate, identified as F. solani, was selected for further research. The biomass was exposed to different gamma irradiation doses (0, 1, 3, and 5 kGy), and its biosorption efficiency was assessed. The highest biosorption efficiencies were observed with the biomass exposed to 5 kGy (FS-5), achieving 37% for Co(II) and 90% for Cd(II) removal within 25 min. The surface area of the biosorbent increased from 13.12 m² g^-1 for unexposed biomass (FS-0) to 34.87 m² g^-1 for FS-5, enhancing the biosorption capacity. The adsorption kinetics followed a pseudo second order model with high correlation coefficients (R² > 0.993), indicating chemisorption as the rate-limiting step. Isotherm studies showed that the Langmuir model provided a better fit to the experimental data, with maximum adsorption capacities of 4.44 mg g^-1 for Co(II) and 21.00 mg g^-1. This study provides valuable insights into the effective removal of Cd and Co from polluted sites, underscoring the potential of developing eco-friendly and cost-effective bioremediation approaches.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 2","pages":"47"},"PeriodicalIF":3.2,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142946704","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}