Environmental Chemistry and Ecotoxicology最新文献

{"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}

{"title":"Consumer risks and benefits: Macro and trace elements in muscle of dominant fish species from Vrana Lake, Croatia","authors":"Zorana Kljaković-Gašpić ,&nbsp;Tatjana Orct ,&nbsp;Ankica Sekovanić ,&nbsp;Antonija Sulimanec ,&nbsp;Ivan Župan ,&nbsp;Marijana Matek Sarić","doi":"10.1016/j.enceco.2025.03.008","DOIUrl":"10.1016/j.enceco.2025.03.008","url":null,"abstract":"<div><div>Although fish muscles are a valuable source of protein and essential nutrients necessary for a balanced diet, the presence of environmental contaminants in fish tissue may present potential health risks. This study evaluated the nutritional benefits and health risks associated with consuming fish from Vrana Lake, Croatia, focusing on the inorganic elements in fish meat. It also examined inter-species differences and the influence of biometric parameters on element levels. Eighteen elements were analysed in the muscle tissue of three fish species using inductively coupled plasma mass spectrometry (ICP-MS). Metal(loid) concentrations in fish muscle were partially influenced by eating habits, size, age, and condition index of species. Despite these variations, element concentrations aligned with levels typical of low-contaminated freshwater systems. The concentrations of Cd (0.024–3.15 μg/kg w.m.), Hg (11.3–179 μg/kg w.m.), and Pb (0.303–28.8 μg/kg w.m.) were significantly lower than the European regulatory limits for these toxic elements in food (0.05, 0.3, and 0.3 mg/kg w.m. for Cd, Hg and Pb, respectively). All species had Se:Hg molar ratios above one (range: 2.4–66.1; median: 17.1–22.7) and selenium health benefit values (HBV_Se) above zero (range: 1.13–12.3; median: 2.62–3.44), providing evidence of Se’s protective role against Hg toxicity in the analysed fish species within the monitored ecosystem. Analysis of health risks and benefits indicated that consumption of one, three, and four weekly servings of carp, Prussian carp, and rudd, respectively, provides a valuable source of essential elements for adults without exceeding safety thresholds for toxic elements. A risk assessment confirmed that both cumulative non-carcinogenic and carcinogenic risks associated with fish consumption were within safe limits (HI &lt; 1.0; CCR &lt; 10⁻⁴) for adults. Overall, these findings indicate that inorganic contaminant levels in fish from Vrana Lake are low and do not pose health risks, making these fish a safe and nutritious dietary choice.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 655-670"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760068","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 global research trends and hotspots on phthalate esters (PAEs): A comprehensive visualization and bibliometric analysis (2000-2023)","authors":"Yajun Hong ,&nbsp;Sizhe Zhang ,&nbsp;Zhenfei Yan ,&nbsp;Saraschandra Naraginti ,&nbsp;Meiqing Zhu ,&nbsp;Dayong Xu","doi":"10.1016/j.enceco.2025.02.001","DOIUrl":"10.1016/j.enceco.2025.02.001","url":null,"abstract":"<div><div>Phthalate esters (PAEs) have garnered significant interest over the last twenty years due to their widespread presence and substantial environmental hazards. Nevertheless, absence of a complete bibliometric study of recent advances and trends in research on PAEs. This paper aims to fill this gap by offering an in-depth analysis of 7069 PAEs-related articles published from 2000 to 2023, highlighting research progress, emerging trends, and key themes. From 2012 to 2023, the number of publications on PAEs surged, reflecting a growing focus within Environmental Sciences. Current research topics predominantly encompass pollution surveys, characterization, spatial distribution, and risk identification, with ecological risk assessment emerging as a prominent research area between 2012 and 2021. China and the United States are the most influential countries according to total publications, total citations and average citations per article, while the Chinese Academy of Sciences and the United States Environmental Protection Agency were identified as leading institutions. PAEs levels in Chinese waters and sediments were notably higher compared to other nations. PAEs present significant risks to human health and ecological systems, necessitating serious attention. This research gives an objective and comprehensive summary of the current situation of PAEs research and suggests future directions for scholars in this domain.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 381-393"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143377337","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":"Microplastics: An emerging environmental risk factor for gut microbiota dysbiosis and cancer development?","authors":"Sheik Aliya ,&nbsp;Munirah Alhammadi ,&nbsp;Sujatha Ilangovan ,&nbsp;Soobin Han ,&nbsp;Sujina Tamang ,&nbsp;Byoungchul Son ,&nbsp;Hyun Uk Lee ,&nbsp;Yun Suk Huh","doi":"10.1016/j.enceco.2025.03.005","DOIUrl":"10.1016/j.enceco.2025.03.005","url":null,"abstract":"<div><div>Microplastics (MPs) are contaminants of emerging concern, as increased exposure levels pose a major threat to animals and human health. These contaminants insidiously infiltrate the environment by dispersing in air, water, and soil, potentially entering the human food chain. Bioaccumulation of these unmetabolizable MPs in organisms of increasing trophic levels has heightened the urgency to develop approaches to mitigate their input in the environment and day-to-day life. In addition, a disquieting research conclusion suggests a cancer risk associated with these ubiquitous particles, shaking the foundation of our understanding of MPs pollution’s health risks. This review article discusses the current state of knowledge surrounding MPs. The major MPs sources, and how they, along with associated additive chemicals and pathogenic bacteria, find their way into the human body through the food chain are described. In addition, MPs’ potential to cause inflammation and their effects on the gut microbiome and immune system, which can lead to the development of various types of cancers, including lungs, liver, skin, bone marrow, breast, colon, ovarian, cervical, and prostate, and pancreas, metastasis, and development of chemotherapy resistance, are reviewed based on recent literature. Overall, this review has presented evidence of the complex interplay between MPs, gut health, and cancer which warrants in-depth investigation and exploration of effective preventive and lenitive strategies to safeguard vulnerable populations from the potential long-term effects of MPs exposure.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 706-728"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Split phosphorus application strategies in calcareous soil enhance hyperaccumulator growth without compromising cadmium uptake","authors":"Yijun Liu ,&nbsp;Rui Wang ,&nbsp;Yinzhu Liu ,&nbsp;Weixiang Wang ,&nbsp;Qijie Yu ,&nbsp;Jieqiong Su ,&nbsp;Yahu Hu","doi":"10.1016/j.enceco.2025.03.003","DOIUrl":"10.1016/j.enceco.2025.03.003","url":null,"abstract":"<div><div>Enhancing hyperaccumulator biomass without compromising metal uptake remains a critical challenge in phytoremediation. This study investigated the effects of split phosphorus (P) fertilization on cadmium (Cd) extraction by <em>Solanum alatum</em> Moench in calcareous soil. Phosphorus was applied either fully as basal fertilizer (control) or split into 50 % basal and 50 % top dressing during seedling, flowering, and fruit-setting stages at ratios of 0:1:0, 1:1:1, and 1:2:1. Split P application increased shoot dry biomass by 6.1–26.9 % compared to the control, without altering shoot P concentration, indicating efficient fertilization. Soil phytase activity surged by 415 % during flowering in the treatment with the lowest fertilization level at this stage, suggesting enhanced organic P mineralization. Concurrently, active calcium carbonate concentration decreased by 10.7–12 %, reducing Cd retention and elevating soil bioavailable Cd by 7.6–62 %. Despite biomass dilution, shoot Cd uptake remained stable, ultimately increasing shoot Cd extraction by 10.4–26.1 %. These results demonstrate that split P application amplifies Cd phytoextraction in calcareous soils through dual mechanisms: direct biomass stimulation and indirect Cd mobilization via organic P mineralization and calcium carbonate suppression.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 573-579"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685402","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":"Transition metal-based MOFs for Fenton-like photocatalytic degradation of organic pollutants: Performance, stability, and biocompatibility","authors":"S.M. Tikhanova ,&nbsp;Yu.A. Tishchenko ,&nbsp;E.Yu. Stovpiaga ,&nbsp;M. Timofeeva ,&nbsp;D.V. Lipin ,&nbsp;S.A. Povarov ,&nbsp;V.A. Milichko ,&nbsp;A.S. Timin ,&nbsp;S.A. Shipilovskikh ,&nbsp;V.I. Popkov","doi":"10.1016/j.enceco.2025.01.003","DOIUrl":"10.1016/j.enceco.2025.01.003","url":null,"abstract":"<div><div>The development of efficient materials for water treatment is crucial to addressing global environmental challenges. In this study, transition metal-based metal-organic frameworks (MeBDC MOFs; Me = Fe, Co, Ni; BDC = benzene dicarboxylic acid) were synthesized via a solvothermal method and considered as dual-function photocatalysts for adsorption and removal of organic pollutant. Comprehensive physicochemical analysis of the developed samples was performed using scanning electron microscopy (SEM), powder X-ray diffraction (PXRD), energy-dispersive X-ray spectroscopy (EDX), fourier-transform infrared spectroscopy (FTIR), raman spectroscopy, N₂ adsorption-desorption isotherms (BET), and diffuse reflectance spectroscopy (DRS). The materials exhibited a high visible-light absorption with band gap energies of 1.76 eV (FeBDC), 3.08 eV (CoBDC), and 3.73 eV (NiBDC), BET surface areas of 28.2 m²/g (FeBDC), 74.3 m²/g (CoBDC), and 31.4 m²/g (NiBDC). Photocatalytic performance was evaluated using methylene blue (MB) degradation under visible-light irradiation containing both conventional and Fenton-like processes. FeBDC achieved a reaction rate constant of 0.2719 min⁻¹ with 50 mmol/L H₂O₂, outperforming other materials due to its superior visible-light absorption and catalytic activity, which justified its selection for more detailed mechanistic studies. The proposed mechanism involves ligand-to-metal charge transfer (LMCT) and Fe-driven generation of reactive oxygen species (ROS) such as hydroxyl radicals. <em>In vitro</em> studies conducted on human monocytes (THP-1), murine embryonic fibroblasts (MEF-NF), breast cancer cells (4T1), melanoma cells (B16-F10), and colorectal cancer cells (CT26) demonstrated high biocompatibility of the developed MOFs. By reducing reliance on toxic chemical treatments, this study highlights MeBDC MOFs as highly efficient, biocompatible, and sustainable photocatalysts, with significant potential for industrial and domestic water purification applications.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 305-318"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143097922","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":"Disruptive technology for integrating bioremediation and biodiesel production from persistent toxic aromatic wastes using termite gut yeasts","authors":"Sameh S. Ali ,&nbsp;Rania Al-Tohamy ,&nbsp;Jianzhong Sun","doi":"10.1016/j.enceco.2025.02.005","DOIUrl":"10.1016/j.enceco.2025.02.005","url":null,"abstract":"<div><div>Termite gut yeasts represent a highly promising yet underexplored resource for the integrated bioremediation of aromatic wastes and biodiesel production. These yeasts possess a remarkable ability to degrade complex aromatic compounds, such as lignin-derived phenolics and azo dye intermediates, while simultaneously accumulating lipids, which can be used for biofuel production. However, several challenges, including low lipid yield, toxicity from aromatic intermediates, scalability issues, and high nutrient requirements, limit their industrial application. To overcome these limitations, advanced metabolic engineering, enzyme optimization, and bioreactor design are essential. This review explores the unique advantages of termite gut yeasts, their current deficiencies, and the potential of novel biotechnological approaches such as synthetic biology, systems biology, and co-culture systems. The paper also discusses a strategic roadmap for optimizing termite yeasts for large-scale industrial applications, including the development of clustered regularly interspaced short palindromic repeats (CRISPR) tools, multi-zone bioreactors, and collaborative partnerships with industries. The integration of bioremediation and biodiesel production presents a disruptive and sustainable technology that, if optimized, could revolutionize both waste management and renewable energy sectors.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 462-493"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143510385","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":"Occurrence, risks, and mitigation of antibiotic pollution in Bangladeshi aquaculture systems","authors":"Umma Salma ,&nbsp;Anwar Hossain ,&nbsp;Md. Shafiujjaman ,&nbsp;Yuri Nishimura ,&nbsp;Masahiro Tokumura ,&nbsp;Rumi Tanoue ,&nbsp;Tatsuya Kunisue ,&nbsp;Kozo Watanabe ,&nbsp;Mohammad Raknuzzaman ,&nbsp;Kazushi Noro ,&nbsp;Takashi Amagai ,&nbsp;Masakazu Makino","doi":"10.1016/j.enceco.2025.01.007","DOIUrl":"10.1016/j.enceco.2025.01.007","url":null,"abstract":"<div><div>The increasing use of antibiotics in Bangladeshi aquaculture to prevent diseases and enhance production has resulted in notable environmental contamination and resistance risks. Despite the increasing use of antibiotics in Bangladeshi aquaculture, their occurrence and the effective removal of antibiotics from aquaculture wastewater remain largely unexplored. Therefore, this study comprehensively investigated the occurrence, distribution, and ecological impacts of 26 antibiotics belongs to seven classes in the surface water of 50 aquaculture farms cultivating finfish and shellfish. Sulfadiazine, sulfamethoxazole, trimethoprim, erythromycin-H₂O, and amoxicillin were the most frequently detected antibiotics, with sulfadiazine reaching a peak concentration of 25,000 ng L⁻¹. Stripped catfish (<em>Pangasius hypophthalmus</em>) culture ponds exhibited the highest contamination levels, with 12 antibiotics quantified. Notably, nine of these antibiotics pose high ecological risks to sensitive aquatic organisms and are likely to exert intense selection pressure for resistance on bacterial communities. Ozonation was explored as a promising treatment method for degrading multiclass antibiotic residues in aquaculture wastewater from Bangladesh, conducted under controlled laboratory conditions in Japan. The results showed 100 % removal efficiency for sulfonamides, tetracyclines, β-lactams, and lincosamide, with fluoroquinolones achieving a 49–83 % reduction. These findings underscore the urgent need for responsible antibiotic use and effective wastewater management in Bangladeshi aquaculture. By providing novel insights into antibiotic contamination and proposing ozonation as a potentially effective treatment method, this study contributes to mitigating the environmental and public health risks associated with antibiotic pollution.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 351-363"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141319","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":"Biochar as a tool to optimise Miscanthus sinensis resilience and phytoremediation efficiency: Case study of contamination by mixture of Ni and 4.4′-DDE","authors":"Asil Nurzhanova ,&nbsp;Valentina Pidlisnyuk ,&nbsp;Asiya Nurmagambetova ,&nbsp;Zhadyra Zhumasheva ,&nbsp;Lyazat Naizabayeva ,&nbsp;Aigerim Mamirova","doi":"10.1016/j.enceco.2025.04.006","DOIUrl":"10.1016/j.enceco.2025.04.006","url":null,"abstract":"<div><h3>Background</h3><div>This study investigated the effects of 1 % commercial sewage sludge-based biochar on the physiological, biochemical, and phytoremediation parameters of <em>Miscanthus sinensis</em> And. (<em>M. sinensis</em>) under greenhouse conditions. Biochar was applied to soils subjected to mono- and combined contaminations involving 4.4′-DDE and Ni ions.</div></div><div><h3>Findings</h3><div>Biochar incorporation led to (a) a significant increase in plant yield (up to 121 %), (b) enhanced free proline (up to 366 %) and total protein content (up to 135 %), (c) increased levels of the auxiliary pigment chlorophyll <em>b</em> (up to 154 %), (d) partially restored electron transport in photosystem II (up to 36.9 %), and (e) reduced antioxidant enzyme activity in <em>M. sinensis</em> leaves. However, when applied to control soil, biochar induced plant stress, highlighting its suitability primarily for contaminated environments. Post-vegetation analysis confirmed that biochar sorbed Ni and Cr ions from the soil, desorbed Cu and Zn, and had no effect on Pb across all treatments. Furthermore, biochar incorporation significantly reduced plant uptake of 4.4′-DDE, decreasing its bioavailability by 38.9 % and 59.1 % under combined and mono-DDE contamination, respectively, compared to the respective unamended treatments.</div></div><div><h3>Conclusions</h3><div>Under combined contamination, biochar exhibited selective sorption activity, enhancing 4.4′-DDE adsorption while reducing Ni ion retention, indicating that Ni stabilisation depends on both biochar properties and the nature of contamination. Additionally, biochar’s ability to desorb Cu and Zn suggests its potential use in agricultural soils with Cu and/or Zn deficiencies. These findings underscore biochar’s dual role in promoting <em>M. sinensis</em> growth and reducing pollutant bioavailability, demonstrating its potential to enhance the phytoremediation of complexly contaminated soils.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 802-818"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Methylene blue removal using zinc and magnesium oxides doped banana peels: Isotherm, kinetics and mechanism","authors":"Pornsawai Praipipat ,&nbsp;Pimploy Ngamsurach ,&nbsp;Kanokwan Bunchu ,&nbsp;Varunya Lekwaree","doi":"10.1016/j.enceco.2025.04.005","DOIUrl":"10.1016/j.enceco.2025.04.005","url":null,"abstract":"<div><div>Three banana peel materials which were banana-doped ZnO beads (BZB), banana-doped MgO beads (BMB), and banana-doped ZnO + MgO beads (BZMB) for adsorbing methylene blue dye (MB) were synthesized and characterized by several techniques of XRD, FTIR, FESEM-FIB, EDX, BET, and pH_pzc. Batch experiments, material reusability experiments, adsorption patterns and mechanisms, and thermodynamic studies were examined their abilities for adsorbing MB. The specific ZnO or MgO peaks and chemical functional groups of Zn<img>O, and Mg<img>O were detected in all materials by XRD and FTIR analysis. They had a spherical shape with heterogeneous surfaces, and the specific characteristic structure of ZnO or MgO and the elements of zinc and magnesium were found by FESEM-FIB and EDX analysis. The behaviors of N₂ adsorption-desorption isotherm of all materials were type I with H4 hysteresis loop indicating microporous materials. The pH_pzc values of BZB, BMB, and BZMB were 5.93, 9.61, and 8.95. BZMB demonstrated a higher MB removal efficiency at 98.68 % than BZB and BMB, so the additions of both ZnO and MgO increased MB removal efficiency more than the addition of only ZnO or MgO. Moreover, they could be reused in more than six adsorption cycles with high removal efficiencies of more than 54 %. Freundlich and pseudo-second-order kinetic models were best-fit models for all materials corresponding to a chemisorption process. They were exothermic processes that did not favor MB adsorptions with increasing temperature.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 729-740"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143820873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}