Environmental Chemistry and Ecotoxicology最新文献

{"title":"Enrichment features, ecological risks assessment and quantitative sources appointment of sediment heavy metals: An example of the urbanized Xizhi River catchment, South China","authors":"Chao Yan ,&nbsp;Qirui Wu ,&nbsp;Rui Li ,&nbsp;Zuobing Liang ,&nbsp;Zaizhi Yang ,&nbsp;Aiping Zhu ,&nbsp;Lei Gao","doi":"10.1016/j.enceco.2025.01.002","DOIUrl":"10.1016/j.enceco.2025.01.002","url":null,"abstract":"<div><div>Rapid industrialization is typically the primary cause for heavy metals [HMs: copper (Cu), zinc (Zn), cadmium (Cd), chromium (Cr), nickel (Ni), and lead (Pb)] contamination in urbanized river basins. In this study, sediment cores were collected from the Xizhi River (XZR) of the Pearl River Delta, South China, and its tributary, the Danshui River (DSR), to analyze the total concentrations and geochemical fractions of these HMs and to assess their potential hazards to the river ecosystem. By integrating a traditional geochemical model and multivariate statistical analysis into a positive matrix factorization (PMF) method, we quantitatively identified the possible sources of HM contamination in the sediments. The total concentrations of sediment HMs distinctly exceeded local background values and were higher in the DSR compared to the XZR. The enrichment levels of HMs were influenced not only by sediment properties, such as texture, but also, more critically, by the distribution of contamination sources. Sediment Cu, Zn, Cd, and Ni were dominated by acid-soluble fractions (31.4–56.2 %), exhibiting a great mobility potential; while reducible and oxidizable fractions were the predominant geochemical forms for Pb (45.0 ± 12.8 %) and Cr (37.3 ± 7.09 %). Based on the geo-accumulation index and enrichment factor of individual metals, contamination levels decreased in the order of Cd &gt; Cu, Zn, and Ni &gt; Cr and Pb. Sediment Cd was identified as the major contributor to the potential ecological risks posed to aquatic species. Across the entire watershed, the main sources of HM contamination were identified as industrial effluents (54 %), agrochemicals (16 %), domestic sewage (14 %), and weathering of parent rocks (16 %).</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 263-274"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The multifaceted power of biochar: A review on its role in pollution control, sustainable agriculture, and circular economy","authors":"Amreen Bano ,&nbsp;Mohd Kashif Aziz ,&nbsp;Bablu Prasad ,&nbsp;Rajesh Ravi ,&nbsp;Maulin P. Shah ,&nbsp;Pollyanna Vanessa Dos Santos Lins ,&nbsp;Lucas Meili ,&nbsp;Kumar Suranjit Prasad","doi":"10.1016/j.enceco.2025.01.004","DOIUrl":"10.1016/j.enceco.2025.01.004","url":null,"abstract":"<div><div>The key challenges of the 21st century include global warming, soil health management, wastewater treatment, and adopting sustainable green technologies. Biochar offers significant potential in addressing these issues, positioning itself as a vital tool in advancing sustainable development goals. Recent biochar research has expanded significantly beyond its traditional focus in agricultural and environmental sciences. These characteristics position biochar as an increasingly valuable material for improving soil health, enhancing agricultural productivity, and capturing atmospheric carbon dioxide, contributing to efforts to mitigate global warming. The “circular economy” concept is rapidly gaining attraction, driven by its central goal of waste elimination through meticulous planning. Recently, biochar has emerged as a significant contributor in the environmental community due to its versatility in reducing waste and enhancing the efficacy of the circular economy. This review delves into advancements in the production, modification, and treatment methods of biochar, as well as its elemental and nutrient composition. It highlights the advantages, challenges, and diverse applications of biochar while critically examining current challenges and research gaps in its potential to mitigate greenhouse gas emissions, enhance soil carbon sequestration, and improve wastewater treatment processes.The potential of biochar to reduce greenhouse gas emissions and sequester carbon in soils, along with its applications in wastewater treatment, are thoroughly covered in this article. The challenges it faces and its prospects are also discussed in detail. This review identifies the key issues that must be addressed for the sustainable utilization of biochar. It explores the development of a circular economy-based environmental management paradigm, leveraging waste conversion into biochar and its diverse applications across regions, thus effectively closing the loop and exemplifying a truly circular economy in action.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 286-304"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Accumulation of thallium and potential toxic elements in a water-soil-rice system from a pyrite mining area, southern China: Source apportionment and health risk assessment","authors":"Zhiyi Song ,&nbsp;Hongmei Deng ,&nbsp;Zezhi Chen ,&nbsp;Tao Liu ,&nbsp;Tangfu Xiao","doi":"10.1016/j.enceco.2025.02.003","DOIUrl":"10.1016/j.enceco.2025.02.003","url":null,"abstract":"<div><div>Contamination of heavy metals in the arable soil around mining areas has become a hot issue of global concern, relating to food security and human health risks. This study investigates the accumulation of thallium (Tl) and six other potential toxic elements (PTEs) (Pb, Cu, Cd, As, Ni, Zn) in irrigation water, rhizosphere soil, and corresponding rice grain samples collected from the region downstream of pyrite mining areas, southern China. Surface water in this area might be under the influence of sewage discharge from pyrite mines, with irrigation water exhibiting elevated Tl, Cd, and Zn contents of 26.22, 10.43, and 18,275 μg/L respectively. As a result, 67 %, 78 % and 44 % of rice samples exceeded food safety standards for As, Pb, and Cd respectively. Positive matrix factorization (PMF) modeling revealed that, irrigation activities account for 27.1 % target contaminates accumulation in paddy lands. Although the Tl concentrations in rice grains were relatively low (ranging from 0.01 to 0.06 mg/kg), the substantial consumption of rice, as the staple food, posed significant health risks for local residents (<em>HQ</em> &gt; 16 for adults and &gt; 12 for children, respectively). This study provides a theoretical basis for understating the contribution of irrigation to PTEs contamination in paddy fields in downstream mining-affecting regions. These findings are crucial for developing strategies to mitigate heavy metals contamination, selecting appropriate soil remediation methods, and reducing ecological and health risks.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 407-416"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of low molecular weight organic acids on adsorption of Cd(II) by Auricularia auricula spent substrate-derived biochar: Types and reaction sequence","authors":"Xuesheng Liu ,&nbsp;Yue Jiang ,&nbsp;Wei Yang ,&nbsp;Sha Li ,&nbsp;Yu Jin ,&nbsp;Juanjuan Qu ,&nbsp;Wei Wang","doi":"10.1016/j.enceco.2024.09.001","DOIUrl":"10.1016/j.enceco.2024.09.001","url":null,"abstract":"<div><div>Cadmium (Cd) is one of the most mobile and toxic heavy metals that seriously deteriorates crop quality and threatens human health. It is considered an effective means to stabilize Cd in soil and reduce plant uptake by the application of biochar. However, the interactions and mechanisms between biochar and Cd in the rhizospheric soil are blurred due to the involvement of low molecular weight organic acids (LMWOAs). In this study, four different reaction sequences were established to simulate the chemical interactions between LMWOAs and cadmium (Cd) in the rhizospheric soil with biochar. In terms of adsorption patterns, the results show that, LMWOAs not only slow down the adsorption of Cd ions onto biochar, but also desorb the adsorbed Cd ions from biochar. Tartaric acid (TA) makes adsorption easier, while citric acid (CA) and malic acid (MA) make it more difficult. In terms of adsorption mechanism, the functional groups of MA and CA on biochar the vary wtih reaction sequence, thereby affecting the Cd adsorption onto biochar. The functional groups of TA participate in the adsorption to the greatest extent, and its impact on adsorption is rarely influenced by the reaction sequence. The reaction sequence does not affect the types of Cd-crystals, but affects dissolvement or attachment to the surface of biochar. This study provides chemical insights for further understanding the impact of LMWOAs on the interaction between biochar and heavy metals in soil.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 154-163"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unraveling the pervasive influence of brominated flame retardants on reproductive and developmental outcomes: A systematic review","authors":"Jiahua Meng ,&nbsp;Zitong Zhang ,&nbsp;Jiaqi Tian ,&nbsp;Ning Li ,&nbsp;Zhen Chen ,&nbsp;Xiang Yun ,&nbsp;Dandan Song ,&nbsp;Fei Li ,&nbsp;Lin Zhang","doi":"10.1016/j.enceco.2025.01.006","DOIUrl":"10.1016/j.enceco.2025.01.006","url":null,"abstract":"<div><div>Brominated flame retardants are a class of chemical flame retardants containing bromine elements. Widely used in various consumer products to reduce fire hazards. However, the ubiquitous presence of BFRs in the environment and their potential to bioaccumulate in human tissues have raised concerns about their reproductive and developmental toxicity. This comprehensive review synthesizes the current epidemiological, in vivo, and in vitro evidence regarding the effects of both traditional and novel BFRs on reproductive and developmental health outcomes, where epidemiological studies have linked BFRs exposure to adverse neurodevelopmental, perinatal, and reproductive health consequences, while animal studies provide further insights into the impact of BFRs on parental and offspring health across mammalian and non-mammalian species. Cellular and molecular investigations have unraveled the mechanisms underlying BFRs-induced toxicity, including germ cell and zygote vulnerability, testicular toxicity, sperm quality alterations, and placental dysfunction. Furthermore, the interactive effects of BFRs with other environmental contaminants such as heavy metals, Polychlorinated Biphenyls, methylmercury, and Polyfluoroalkyl Substances have also been explored, which highlights the importance of mixture toxicology in assessing the risks associated with BFRs exposure. Despite the growing body of evidence, limitations in current research and challenges in extrapolating findings to human health risk assessment are discussed, along with recommendations for future research directions and risk management strategies. Based on which this review provides a comprehensive foundation for understanding the reproductive and developmental toxicity of BFRs and underscores the need for proactive measures to mitigate their adverse health effects and protect vulnerable populations.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 319-338"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modelling the association between the El Niño Southern Oscillation and levels of legacy pollutants in Alaskan seabird eggs from 1999 to 2010","authors":"Caitlin A. McConaghy ,&nbsp;Vrinda Kalia ,&nbsp;Amina Salamova ,&nbsp;Lance A. Waller ,&nbsp;Matthew O. Gribble","doi":"10.1016/j.enceco.2024.11.004","DOIUrl":"10.1016/j.enceco.2024.11.004","url":null,"abstract":"<div><h3>Background</h3><div>The circumpolar north has long been a sink for legacy persistent organic pollutants (POPs). Under a warmer climate, these contaminants are predicted to remobilize within environmental media where they are subject to climate processes, underscoring the need to examine the effects of large-scale climate oscillations on the fate of legacy POPs.</div></div><div><h3>Methods</h3><div>We apply piecewise log-linear spline regression models with non-parametric bootstrapping to measure the association between the El Niño Southern Oscillation (ENSO), a measure of Pacific sea surface temperature variability, and levels of polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), and polybrominated diphenyl ethers (PBDEs) measured in common murre (<em>Uria aalge</em>) and thick-billed murre (<em>Uria lomvia)</em> eggs collected from the Gulf of Alaska and Bering Sea between 1999 and 2010.</div></div><div><h3>Results</h3><div>In thick-billed murres, average PCB concentrations increased 143 % per unit increase in ONI during the warm phase of the ENSO, with a meta-regression pooled estimate of 0.887 (95 % CI: 0.674, 1.099). Similarly, average PBDE concentrations increased 562 % per unit increase in ONI during the warm phase, with a pooled estimate of 1.890 (95 % CI: 0.647, 3.133). During the cool phase, average PCB concentrations decreased 59 % per unit increase in ONI, with a pooled estimate of −0.892 (95 % CI: −1.400, −0.384). In common murres, average PCB concentrations decreased 51.4 % per unit increase in ONI during the warm phase, with a meta-regression pooled estimate of −0.722 (95 % CI: −0.894, −0.549), and increased 39.5 % per unit increase in ONI during the cool phase, with a pooled estimate of 0.333 (95 % CI: 0.185, 0.481). Average PBDE concentrations decreased 79.2 % per unit increase in ONI during the warm phase, with a pooled estimate of −1.572 (95 % CI: −2.357, −0.787).</div></div><div><h3>Conclusion</h3><div>Our results indicate associations between the ENSO and PCB and PBDE loads in Alaskan murre eggs, suggesting the ENSO may be an important factor in the fate of legacy POPs within Alaskan marine food webs. To our knowledge, this is the first paper to link the ENSO and levels of legacy POPs in Alaska's environment and may be relevant to health and food security in this region.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 174-181"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative environmental impacts analysis of technologies for recovering critical metals from copper anode slime: Insights from LCA","authors":"Yu Li ,&nbsp;Jenny Baker ,&nbsp;Yaxi Fang ,&nbsp;Haizhou Cao ,&nbsp;Cameron Pleydell-Pearce ,&nbsp;Trystan Watson ,&nbsp;Sha Chen ,&nbsp;Guangling Zhao","doi":"10.1016/j.enceco.2025.01.005","DOIUrl":"10.1016/j.enceco.2025.01.005","url":null,"abstract":"<div><div>Copper anode slime (CAS) is a byproduct produced during copper electrorefining process. It contains metals such as gold, silver, copper, selenium, tellurium etc. Without proper treatment, CAS posed significant environmental hazard due to its toxic components. Recovering critical metals from CAS not only mitigates environmental risks but also serves as an important source of these valuable materials. Recycling of critical metals can significantly enhance metal recycling efficiency and support the advancement of a circular economy. However, this process could introduce potential environmental impacts due to the increased consumption of energy, chemical material, and water. The process requires comprehensive assessment. In this study, life cycle assessment is employed to evaluate the potential environmental impact of the four resource recovery processes for copper anode slime: pyrometallurgy, hydrometallurgy, semi-hydrometallurgy, and combining bio-hydrometallurgy and semi-hydrometallurgy (CBS). The functional unit is 1 kg of copper anode slime. 5 metals are recycled during the process named: cupper (Cu), tellurium (Te), selenium (Se), gold (Au), and silver (Ag). Six impact categories—climate change, freshwater ecotoxicity, marine ecotoxicity, terrestrial ecotoxicity, human toxicity (cancer), and human toxicity (non-cancer)—were assessed and compared across the four recycling technologies. The LCA results show that CBS has the lowest environmental impact among all the assessed impact categories. CBS process demonstrated superior metal recovery rates. Hydrometallurgy has the lowest energy and material costs. CBS incurs higher total costs due to the use of expensive chemicals like potassium iodide.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 275-285"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aggregate exposure pathways for 6PPD-quinone: A source-to-target site continuum integrating exposure and human health","authors":"Edmond Sanganyado","doi":"10.1016/j.enceco.2025.02.002","DOIUrl":"10.1016/j.enceco.2025.02.002","url":null,"abstract":"<div><div><em>N</em>-(1,3-Dimethylbutyl)-<em>N</em>′-phenyl-<em>p</em>-phenylenediamine quinone (6PPD-Q), a transformation product of the tire additive 6PPD, has been increasingly detected in environmental compartments, yet its cumulative risk remains poorly characterized. This study developed an Aggregate Exposure Pathway (AEP) framework to assess the mechanistic transport of 6PPD-Q from environmental sources to neuronal mitochondria in humans, focusing on the Pearl River Delta. A Weight of Evidence assessment identified key exposure states (KES) across air, road dust, surface runoff, surface water, and biota, highlighting critical data gaps in mass flux estimates, partitioning coefficients, and uptake rates. The study identified significant data gaps in atmospheric deposition, sludge-soil partitioning, groundwater leaching, oral and respiratory bioaccessibility and bioavailabity, and blood-cerebrospinal fluid permeability of 6PPD-Q. A Weight of Evidence assessment revealed significant gaps in the empirical support and quantitative understanding in 60 % of the key transitional relationships, particularly in intermediate media, external exposure and internal exposure. The findings emphasize the need for quantitative models incorporating mass fluxes and phase transfer dynamics to refine exposure predictions. Future research should focus on experimentally determining partitioning coefficients, uptake and accumulation rates, and the flux of 6PPD-Q in environmental and biological systems to enhance quantitative AEP modeling. By systematically integrating mechanistic exposure data, AEPs provide a structured approach for improving cumulative risk assessment and guiding targeted mitigation strategies.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 394-406"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143403350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evidence linking phthalate exposure to alterations of hematologic parameters in Chinese children: A cross-sectional study","authors":"Mei-Ting Wei ,&nbsp;Ying Wen ,&nbsp;Zhu-Xia Zhang ,&nbsp;Xiu-Ju Liu ,&nbsp;Feng-Xiang Wei ,&nbsp;Wei-Qiang Liu ,&nbsp;Li Zhou ,&nbsp;Ding-Yan Chen ,&nbsp;Yao Yao","doi":"10.1016/j.enceco.2025.01.008","DOIUrl":"10.1016/j.enceco.2025.01.008","url":null,"abstract":"<div><div>School-aged children are a particularly susceptible population to phthalate exposure, yet research examining the correlation between combined exposure to multiple phthalates and hematologic changes is limited. We explored the individual and joint associations of early childhood phthalate exposure with hematologic parameters. A total of 1053 school-aged children from Shenzhen, China, 6–8 years of age, were enrolled in this cross-sectional study. Nine phthalate metabolites (mPAEs) and four hematologic parameters (white blood cell [WBC] count, red blood cell [RBC] count, hemoglobin [Hb], and platelet [PLT] count) were measured at the same time. To evaluate the connections between mPAEs and hematologic indices, both individually and in combination, several analytical approaches were used, including the generalized linear model (GLM), the Bayesian kernel machine regression (BKMR) model, and the quantile g-computation (QGC) model. The findings of the GLM indicated that the majority of mPAEs were correlated with hematologic parameters. Specifically, higher levels of mono-(2-ethyl-5-oxohexyl) phthalate [MEOHP] (<em>β</em>: –0.021; 95 % CI: −0.029, −0.012) and mono-(2-ethylhexyl) phthalate [MEHP] (<em>β</em>: –0.022; 95 % CI: −0.036, −0.008) were associated with a decreased PLT count. The results of the QGC and BKMR models showed that the mPAE mixture had a negative correlation trend with the PLT count (<em>β</em> = −0.023; <em>P</em> = 0.034). There was also a weak downward trend with the WBC count, RBC count, and Hb concentration. It is worth noting that among the mixed effects, MEOHP and MEHP had the greatest impact on the four hematologic parameters and showed a consistent negative correlation. Our study demonstrated that mPAEs are closely associated with hematologic parameters in school-aged children, especially the PLT count, and identified MEOHP and MEHP as the key contributors to the joint effect. These findings demonstrate the importance of reducing the potential health hazards of phthalate exposure to the hematologic system in children.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 373-380"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143377256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sorption and diffusion studies of radiocesium in soil samples from Ibu Kota Nusantara region of Indonesia","authors":"Hana Fikrinabilah Dely Supratman ,&nbsp;Hendra Adhi Pratama ,&nbsp;Budi Setiawan ,&nbsp;Mochamad Adhiraga Pratama ,&nbsp;Sucipta Sucipta ,&nbsp;Sitti Hijraini Nur ,&nbsp;Nurul Efri Ekaningrum ,&nbsp;Gustri Nurliati ,&nbsp;Moh. Cecep Cepi Hikmat ,&nbsp;Andry Setiawan ,&nbsp;Niken Siwi Pamungkas ,&nbsp;Zico Pratama Putra ,&nbsp;Muhammad Yusuf","doi":"10.1016/j.enceco.2024.12.008","DOIUrl":"10.1016/j.enceco.2024.12.008","url":null,"abstract":"<div><div>A plan by Indonesia to develop a Nuclear Power Plant (NPP) 1750 km from the new capital city, Ibu Kota Nusantara (IKN), has increased the need for radiocesium (radio-Cs) sorption and diffusion studies to reduce environmental concerns during reactor operation and decommissioning. This study provides the first comprehensive assessment of the physical, chemical, and mineral aspects of three soil samples (HA, M, and E) from the IKN region to figure out how these characteristics affect the mobilization of radio-Cs in the soil. To achieve this, radio-Cs apparent diffusion (<span><math><msub><mi>D</mi><mi>a</mi></msub></math></span>) and distribution (<span><math><msub><mi>K</mi><mi>d</mi></msub></math></span>) coefficients were determined for each soil sample. Mineralogical revealed distinct characteristics among the samples, with the E sample having the highest clay content of 46.18 %, followed by HA (36.27 %) and M (23.69 %). The <span><math><msub><mi>D</mi><mi>a</mi></msub></math></span> in groundwater (GW) solvent achieved at 12 × 10⁻¹² m²/s for HA, 5.80 × 10⁻¹² m²/s for M, and 9.91 × 10⁻¹² m²/s for E sample. In Deionized water (DW) solvent, the <span><math><msub><mi>D</mi><mi>a</mi></msub></math></span> obtained at 2.57 × 10⁻¹² m²/s for HA, 3.10 × 10⁻¹² m²/s for M, and 2.79 × 10⁻¹² m²/s for E sample. The lower diffusion rates (<span><math><msub><mi>D</mi><mi>a</mi></msub></math></span>) in DW compared to GW suggest reduced competition from other cations, limiting cesium ion interaction. The <span><math><msub><mi>K</mi><mi>d</mi></msub></math></span> values in GW were valued at 1949.82 mL/g, 1864.60 mL/g, and 3450.83 mL/g, for HA, M, and E samples, respectively. Meanwhile, the <span><math><msub><mi>K</mi><mi>d</mi></msub></math></span> values in DW increased up to 2262.73 mL/g, 2106.14 mL/g, and 3819.23 mL/g for HA, M, and E samples, respectively. The E sample offered the largest distribution coefficient (<span><math><msub><mi>K</mi><mi>d</mi></msub></math></span>) across all solvents, highlighting the significant impact of clay concentration on adsorption capacity. These findings highlight the significant impact of soil features in determining the behavior of radio-Cs, which has important implications for strategies related to environmental monitoring and remediation mitigation in IKN region.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 252-262"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143097281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}