Journal of trace elements and minerals最新文献

{"title":"Ecological risks of nutrient and metal contamination in Calabar River sediments, Nigeria","authors":"Honor T. Ifon ,&nbsp;Edak K. Agi-Odey ,&nbsp;Godwin A. Otogo ,&nbsp;Akaninyene P. Joseph","doi":"10.1016/j.jtemin.2026.100279","DOIUrl":"10.1016/j.jtemin.2026.100279","url":null,"abstract":"<div><h3>Introduction</h3><div>The Calabar River in southeastern Nigeria faces severe pollution from industrial discharges, agricultural runoff, and urban wastewater, threatening its ecological integrity and the livelihoods of dependent communities, yet comprehensive risk assessments integrating nutrient enrichment and metal contamination remain limited.</div></div><div><h3>Methods</h3><div>This study examined water and sediment quality at 16 locations along a 10.78 km stretch of the river. Water and surface sediment samples were analyzed for key physicochemical parameters, nutrients, and metals. The Potential Ecological Risk Index (PERI) was used to assess the risk status of the river based on the metals analyzed, categorized as low to moderate, high, and extremely high.</div></div><div><h3>Results</h3><div>Water quality varied across sites, with dissolved oxygen ranging from 3.80 ± 0.10 to 6.50 ± 0.14 mg L⁻¹ and total nitrogen from 5.07 ± 0.03 to 9.17 ± 0.11 mg L⁻¹. Sediment analysis showed elevated levels of lead (27.5 ± 0.9 to 34.0 ± 1.8 mg kg⁻¹), zinc (85.3 ± 3.8 to 138.3 ± 6.7 mg kg⁻¹), and nickel (24.7 ± 0.6 to 94.5 ± 0.6 mg kg⁻¹). PERI results identified sites S9, S10, and S4 as having extremely high ecological risk, mainly due to lead, zinc, and molybdenum. Lead alone contributed up to 29% of the total risk at some locations. Sites S7 and S16 showed low to moderate risk.</div></div><div><h3>Conclusion</h3><div>The findings reveal serious ecological threats from nutrient and metal pollution in the Calabar River, especially near industrial and agricultural zones. These results highlight the need for targeted pollution control and better environmental management to protect the river’s ecosystem and the communities that depend on it.</div></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":"15 ","pages":"Article 100279"},"PeriodicalIF":0.0,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977061","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":"Agroclimatic variation in mineral and heavy metal levels of Raphanus sativus L. Microgreens grown in West Bengal","authors":"Shubhadeep Hazra ,&nbsp;Amitesh Chakraborty ,&nbsp;Santanu Giri ,&nbsp;Aniruddha Sarkar ,&nbsp;Tushar Adhikari","doi":"10.1016/j.jtemin.2026.100278","DOIUrl":"10.1016/j.jtemin.2026.100278","url":null,"abstract":"<div><h3>Introduction</h3><div>Microgreens have emerged as potent ‘functional foods’ or ‘superfoods’ because of their rich nutritional profile.</div></div><div><h3>Objective</h3><div>This research aims to perform Flame Atomic Absorption Spectroscopy based estimation of minerals, heavy metals, and associated health risks of <em>Raphanus sativus</em> L. microgreens grown in different agroclimatic zones of West Bengal, India.</div></div><div><h3>Method</h3><div>The radish microgreens were cultivated in soils collected from different districts (as confirmed by soil analysis), and the mineral content (Ca, Mn, Zn, Se) and heavy metals (Cr, Cd, Pb) were analysed using a Flame Atomic Absorption Spectrometer.</div></div><div><h3>Results</h3><div>Significant variations (p&lt;0.05) in mineral profiles were found in radish microgreens grown in soils of different districts. Major elements determined were Calcium (1091.43±21.87 to 1481.17±12.58 mg/kg); Zinc (44.21±1.54 to 158.92±1.21 mg/kg); Manganese (66.21±8.73 to 83.47±6.43 mg/kg); and Selenium (0.32±0.13 to 1.01±0.22 mg/kg). South 24 Parganas recorded exceptionally high zinc content in the grown microgreens. Chromium concentration was below toxic limits. Lead and cadmium were found in negligible amounts (1.57±0.63 to 11.21±2.02 μg/kg). The hazard index of microgreens grown in all districts was less than 1. A positive correlation between heavy metals indicates that their source and route of uptake are similar.</div></div><div><h3>Conclusion</h3><div>Almost all investigated microgreens were good sources of minerals, with the best mineral profile and high germination rate rich alluvial soils, indicating that fertile soils are best for growth. Based on the obtained results, these microgreens might be further assessed for any seasonal variation in mineral content and in vivo bioavailability studies of minerals needs to be analyzed.</div></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":"15 ","pages":"Article 100278"},"PeriodicalIF":0.0,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977062","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":"Green-Synthesized selenium nanoparticles from Saraca asoca leaves: A multifunctional evaluation of antioxidant, anticoagulant, antigout and thrombolytic activities","authors":"Suhana Malik ,&nbsp;Prachi Tiwari ,&nbsp;Anuradha Singhaniya ,&nbsp;Chandrababu Rejeeth","doi":"10.1016/j.jtemin.2025.100277","DOIUrl":"10.1016/j.jtemin.2025.100277","url":null,"abstract":"<div><h3>Background</h3><div>This study presents the green synthesis and comprehensive biological evaluation of selenium nanoparticles (Se-NPs) derived from <em>Saraca asoca</em> leaf extract.</div></div><div><h3>Methods</h3><div>The biosynthesized Se-NPs were characterized using UV – Visible spectroscopy, Fourier - transfer infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM), confirming their nanoscale morphology and phytochemical capping. The antioxidant potential of Se-NPs was assessed via DPPH and ABTS radical scavenging assays.</div></div><div><h3>Results</h3><div>demonstrating significant activity with 73 ± 3.65% and 90 ± 4.5% inhibition, respectively, at 100 µg/mL. Antigout efficacy was evaluated through uric acid degradation and xanthine oxidase inhibition (XOI), revealing dose- dependent activity with 62 ± 1.86% UA degradation at 19 mg/mL and 76% XOI at 200 µg/mL. Furthermore, Se-NPs exhibited notable anticoagulant and thrombolytic effects in mammalian blood, indicating their potential to modulates haemostatic pathways.</div></div><div><h3>Conclusion</h3><div>Collectively, these findings underscore the multifunctional therapeutic properties of <em>Saraca asoca</em> -mediated Se-NPs, positioning them as promising candidates for future biomedical application targeting oxidant stress, hyperuricemia, thrombotic disorders.</div></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":"15 ","pages":"Article 100277"},"PeriodicalIF":0.0,"publicationDate":"2025-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977055","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":"Enhancing soil fertility, nutrient recovery and carbon sequestration: the role of biochar, composted biochar, and biochar-compost mixtures in sustainable agriculture","authors":"Misbah Rani ,&nbsp;Zainul Abideen ,&nbsp;Neelma Munir ,&nbsp;Maria Hasnain ,&nbsp;Mohammad Mehdizadeh ,&nbsp;Muhammed Qasim ,&nbsp;Emanuele Radicetti","doi":"10.1016/j.jtemin.2025.100276","DOIUrl":"10.1016/j.jtemin.2025.100276","url":null,"abstract":"<div><h3>Background</h3><div>Soil degradation, caused by salinity, nutrient depletion, and trace metal pollutants, is a major problem for agricultural productivity. Organic amendments, such as biochar, have shown potential to improve soil health, water retention, and nutrient availability. However, biochar-based blended amendments, such as biochar compost mixture and composted biochar, may offer greater benefits even under harsh soil environments.</div></div><div><h3>Objectives</h3><div>This systematic review evaluates the limitations and advantages of biochar, compost, and biochar-compost mixtures in restoring degraded and polluted soils. The review assesses their roles in improving soil fertility, nutrient availability, microbial activity, and key physiochemical properties relevant to sustainable agriculture.</div></div><div><h3>Methods</h3><div>Following PRISMA guidelines, we systematically searched major scientific databases and screened studies based on predefined inclusion and exclusion criteria. Eligible studies included laboratory, greenhouse, and field experiments assessing soil restoration outcomes using biochar-based amendments.</div></div><div><h3>Key findings</h3><div>Biochar applications enhanced biomass production, CO₂ capture, soil quality, and immobilization of inorganic ions and organic waste material due to promising properties like advanced cation exchange capacity, high permeability, and large surface area. Biochar-compost further improved nutrient availability, biomass uptake, water retention, carbon sequestration, and plant physiological responses under stress. Composted biochar offered more sustained and long-lasting improvements in soil quality and plant productivity under salinity stress, thus solving multiple biochar-associated challenges, although further long-term field evidence is still needed.</div></div><div><h3>Broader implications</h3><div>Overall, biochar and biochar-compost represent promising tools for soil restoration, pollutant remediation, and crop productivity. Although their benefits are widely reported, variability in outcomes and gaps in long-term evidence underscore the importance of optimizing application strategies for different soil systems.</div></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":"15 ","pages":"Article 100276"},"PeriodicalIF":0.0,"publicationDate":"2025-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145924963","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":"Neuroprotective potential of Zingiber officinale methanol extract in copper sulfate-induced nigrostriatal neurodegeneration in mice","authors":"Aduema Wadioni ,&nbsp;Olusegun G. Adebayo ,&nbsp;Adebimpe V. Masanwoola ,&nbsp;Joseph Chimezie","doi":"10.1016/j.jtemin.2025.100274","DOIUrl":"10.1016/j.jtemin.2025.100274","url":null,"abstract":"<div><div><strong>Background:</strong> Exposures to transition metals such as copper have been investigated in Parkinson’s disease (PD) patients’ brain with the concentrations higher comparative to the non-diseased. However, the mechanistic approach in PD remains largely unexplored.<strong>Objectives</strong> This study aims to investigate the <em>Zingiber officinale</em> methanol extract (MEZO) neuroprotective effect in mice striatal and nigral neurons after exposure to copper intoxication. <strong>Methods:</strong> A total of 40 mice (n = 8 mice/group) were treated orally with distilled water (10 mL kg^-1; group 1), copper sulfate (CuSO₄, 20 mg kg^-1; group 2), MEZO (50 and 100 mg kg^-1; group 3 and 4), and vitamin C (100 mg kg^-1; group 5) repeatedly for 28 days. The mice in group 3 – 5 were pre-treated with CuSO₄, followed 1 hour later by MEZO and Vitamin C treatment. Locomotor and neuromuscular performances were assessed using open field, negative geotaxis and tail suspension test, respectively. After termination, markers of oxidative stress and inflammation, neuronal transmission, and histoarchitectural changes were evaluated in the brain tissues. <strong>Results:</strong> The exposure to CuSO₄ treatment induced significant reduction in locomotor and neuromuscular competence but was improved following the administration of MEZO. Oral exposure to CuSO₄ increased striatal pro-oxidants (malondialdehyde and nitrite), inflammatory mediators (MPO, TNF-α, and IL-6), and α-synuclein levels; and decreased endogenous antioxidant enzymes (glutathione and catalase), anti-inflammatory cytokine (IL-10), dopamine, acetylcholinesterase (AChE) and brain derived neurotophic factor (BDNF) levels in the striatum. However, the administration of MEZO decreased pro-oxidants, inflammatory mediators, and α-synuclein levels; and increased the endogenous antioxidant enzymes, anti-inflammatory cytokine, dopamine, AChE and BDNF levels in the mice striatum in a dose-related manner. Additionally, the administration of MEZO abated the loss of the nigrostriatal neurons as well as the structural integrity after CuSO₄ lesioning. <strong>Conclusion:</strong> The study suggests that MEZO could be used as a pharmacotherapy in the management and treatment of PD pathophysiology following exposure to CuSO₄ intoxication.</div></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":"15 ","pages":"Article 100274"},"PeriodicalIF":0.0,"publicationDate":"2025-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145924964","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":"Hyphenated mass spectroscopic detection of heavy metals in environmental and biological samples: A review","authors":"Ratnesh Tiwari ,&nbsp;Nihar Ranjan ,&nbsp;Mohini Chaurasia ,&nbsp;S.J.S. Flora","doi":"10.1016/j.jtemin.2025.100273","DOIUrl":"10.1016/j.jtemin.2025.100273","url":null,"abstract":"<div><h3>Introduction</h3><div>Heavy metals constitute a major class of environmental contaminants with a narrow margin between essentiality and toxicity. Their widespread use in industrial, agricultural, and biomedical applications has led to persistent accumulation in air, water, soil, and biological systems. Owing to their non-biodegradable nature, heavy metals readily bioaccumulate and magnify, posing severe risks to human health and ecosystems. Accurate detection and speciation of these metals are therefore essential to understanding their toxicity and environmental behaviour.</div></div><div><h3>Methods</h3><div>Traditional analytical techniques for metal detection are limited by high costs, laborious workflows, and insufficient sensitivity when applied to complex samples. Over the past two decades, hyphenated analytical platforms have emerged as powerful alternatives by integrating separation techniques such as liquid chromatography, gas chromatography, capillary electrophoresis, and pyrolysis with advanced mass spectrometric detection. These combinations significantly enhance selectivity, sensitivity, and throughput while enabling precise speciation analysis across diverse matrices.</div></div><div><h3>Results</h3><div>This review compiles and critically evaluates the major hyphenated mass spectrometric techniques—including GC–MS, LC-MS/MS, LC-ICP-MS, Py-GC–MS, nano-ESI-MS, TGA-MS, ToF-SIMS, AMS, and IC-MS—with representative applications in environmental, biological, food, and toxicological studies. Their advantages over conventional methods, such as lower detection limits, improved matrix tolerance, and multi-element capability, are highlighted alongside recent biological and environmental case studies. Challenges associated with instrumentation complexity, sample preparation, data processing, and on-site applicability are discussed. The review also outlines future prospects, emphasising the need for miniaturisation, user-friendly software, AI-assisted data interpretation, and portable field-deployable systems to improve accessibility and real-time monitoring.</div></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":"15 ","pages":"Article 100273"},"PeriodicalIF":0.0,"publicationDate":"2025-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145737050","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":"Monitoring and assessment of groundwater suitability for drinking and irrigation in the granary region of central-west Bangladesh using entropy index","authors":"Md. Shazzadur Rahman ,&nbsp;Sharmin Sultana ,&nbsp;Pradip Kumar Biswas ,&nbsp;Md. Aminur Rahman ,&nbsp;A.H.M. Selim Reza ,&nbsp;Md. Moniruzzaman ,&nbsp;Md. Abu Bakar Siddique ,&nbsp;Md. Ripaj Uddin ,&nbsp;Md. Shah Alam ,&nbsp;Md. Shohel Rana ,&nbsp;Md. Golam Mostafa ,&nbsp;Shamim Ahmed ,&nbsp;Hayatullah","doi":"10.1016/j.jtemin.2025.100272","DOIUrl":"10.1016/j.jtemin.2025.100272","url":null,"abstract":"<div><h3>Introduction</h3><div>This study assesses groundwater suitability for drinking and irrigation in central-west Bangladesh’s granary region. Using the entropy water quality index (EWQI) and conventional irrigation indices, it evaluates water quality essential for public health and sustainable agriculture.</div></div><div><h3>Materials and methods</h3><div>Groundwater samples from multiple sites were analyzed for major physicochemical parameters. Drinking suitability was assessed using EWQI, while irrigation suitability was evaluated through USSL, Wilcox, and Doneen indices. Hydrochemical facies and geochemical processes were interpreted using Piper, Gibbs, and bivariate analyses.</div></div><div><h3>Results and discussion</h3><div>Groundwater in the study area is neutral to alkaline in nature and is dominated by calcium (Ca²⁺) and bicarbonate (HCO₃^-), characterizing a Ca-Mg-HCO₃ water type. This composition reflects calcite dissolution and ion-exchange processes. Gibbs plots and bivariate relationships indicate that rock weathering, particularly of calcite, dolomite, and silicate minerals, largely governs the groundwater chemistry. The EWQI and WQI results reveal that 96.67 % of the samples are unsuitable for drinking, with 76.67 % classified as poor quality. PCA results indicate that the dissolved constituents are primarily of geogenic origin, with minor anthropogenic influence. For irrigation purposes, the USSL diagram suggests low to medium alkali hazards, Wilcox ratings range from permissible to excellent, and Doneen’s classification places the samples in Class I, indicating high permeability.</div></div><div><h3>Conclusion</h3><div>Groundwater is generally unsuitable for drinking but remains acceptable for irrigation. Regular monitoring and effective management are essential to prevent further degradation and ensure long-term water sustainability.</div></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":"15 ","pages":"Article 100272"},"PeriodicalIF":0.0,"publicationDate":"2025-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145600534","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":"Evaluating climate-induced drivers of trace metal mobilization in environmental systems","authors":"Anita Punia ,&nbsp;Saurabh Kumar Singh","doi":"10.1016/j.jtemin.2025.100271","DOIUrl":"10.1016/j.jtemin.2025.100271","url":null,"abstract":"<div><div><em>Background</em>: Two major threats to the environment are intensification of anthropogenic activities and ongoing climate change. The anthropogenic activities for economic growth are releasing abundant quantity of trace metals into the environment and it is likely to increase leading to disaster in future. Co-currently frequent natural disasters such as floods, droughts, forest fires and rise in sea level due to climate change are resulting in loss of life and economic burden. <em>Purpose and methodology</em>: The extreme weather events influence the environmental redox conditions promoting the dissolution/mobility of trace metals from the waste dumps associated with urban, industrial and mining activities. Climate change is predicated to intensify in future. The main objective of the present study is to understand the role of environmental consequences caused by climate change in governing the mobility of trace metals. It is important to predicate future risk and consequences caused by trace metals to avoid the natural hazards by implementing the mitigation strategies. A total of 191 research and review articles were selected on the basis of their relevance with the objectives of the study. <em>Observations</em>: The climatic factors such as temperature and precipitation influence the geochemical processes and hydrodynamics governing the trace metal mobility in environmental systems. The increase in temperature significantly influences the microbial activities leading to impact on the geochemical properties of soil and sediment. Additionally, the threat of rising sea level and the growing incidents of forest fires are among the key consequences of climate change. The sea water intrusion into the coastal areas facilitates mineral dissolution and leaching of trace metals into the aquifers. The burning of urban infrastructures and elevated temperature during forest fires significantly contribute to trace metal contamination in affected ecosystems. <em>Conclusions</em>: The environmental consequences caused by trace metals are expected to increase under the influence of future climate change. The new guidelines for the permissible limits for trace metals released from anthropogenic activities is recommended to avoid the natural hazard in future under the influence of climate change.</div></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":"15 ","pages":"Article 100271"},"PeriodicalIF":0.0,"publicationDate":"2025-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145600535","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":"Bioaccumulation of minerals and trace elements in spinach (Spinacia oleracea L.) grown under different nutrient management and their implications for human health","authors":"Phalguni Das,&nbsp;Protyasha Biswas,&nbsp;Mousumi Akter,&nbsp;Md. Zakir Hossen,&nbsp;Md. Shohidul Alam","doi":"10.1016/j.jtemin.2025.100270","DOIUrl":"10.1016/j.jtemin.2025.100270","url":null,"abstract":"<div><h3>Background</h3><div>Nutrient management strategies significantly influence the bioaccumulation of minerals and trace elements in leafy vegetables, directly affecting crop nutritional quality and human health.</div></div><div><h3>Objectives</h3><div>This study aimed to evaluate the effects of different chemical fertilizers and organic manures on spinach (<em>Spinacia oleracea</em> L.) growth, yield, mineral content, and the potential health implications of consuming these plants.</div></div><div><h3>Methods</h3><div>A pot experiment was conducted using spinach cv. Kopi Palong in a completely randomized design with three replications. Treatments included: 100 % vermicompost (VC), 100 % cow dung (CD), 100 % chemical fertilizers (CF), and various combinations of CF with CD or VC (75 % CF + 25 % CD/VC, 50 % CF + 50 % CD/VC, 25 % CF + 75 % CD/VC), plus a control. Growth parameters, mineral nutrient uptake, and trace element concentrations in edible spinach leaves were measured.</div></div><div><h3>Results</h3><div>Significant variations were observed in spinach growth, nutrient uptake, and trace element accumulation among the nutrient management treatments. Mixed manure and chemical fertilizer treatments produced the tallest plants with the highest dry weight and moisture content, while 100 % chemical fertilizer resulted in the highest yield. Mineral uptake varied among treatments, indicating the potential to optimize nutrient profiles through specific fertilizer combinations. Trace metal accumulation followed the order Fe &gt; Mn &gt; Zn &gt; Cu &gt; Cd &gt; Pb. The highest concentrations in fresh weight (fw) basis recorded were Fe (3.667 mg kg^-1 fw in 100 % VC), Mn (0.598 mg kg^-1 fw in 100 % CD), Zn (0.252 mg kg^-1 fw in 100 % CD), Cu (0.043 mg kg^-1 fw in 100 % VC), and Cd (0.00094 mg kg^-1 fw in 50 % CF + 50 % VC). Pb was below detection in all treatments. Health risk assessments based on hazard indices indicated no noncancerous risk from spinach consumption.</div></div><div><h3>Conclusion</h3><div>Combining organic manures with chemical fertilizers can reduce trace element contamination while enhancing spinach growth and nutrient content, offering safer and more nutritious produce for human consumption.</div></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":"14 ","pages":"Article 100270"},"PeriodicalIF":0.0,"publicationDate":"2025-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145528354","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":"Integrated mineralogical and microstructural analysis of gas field samples in Bangladesh: Optimizing extraction strategies for Salda and Shahbazpur reservoirs","authors":"Mahbuba Begum ,&nbsp;Fatema Tuz Zohora Toma ,&nbsp;Md. Bazlar Rashid ,&nbsp;Md. Ahosan Habib ,&nbsp;Saeed Mahmud Ullah ,&nbsp;Rahat Khan ,&nbsp;Syed Mohammod Hossain ,&nbsp;S. M. Mostafa Al-Mamun","doi":"10.1016/j.jtemin.2025.100268","DOIUrl":"10.1016/j.jtemin.2025.100268","url":null,"abstract":"<div><h3>Background</h3><div>The Salda and Shahbazpur gas fields are two significant natural gas reservoirs in the Bengal Basin, Bangladesh. This study presents a novel integration of mineralogical and microstructural analyses aimed at optimizing gas extraction strategies for the both Salda and Shahbazpur gas fields.</div></div><div><h3>Materials and methods</h3><div>Core samples (consolidated sedimentary rocks) from both fields were analyzed using X-ray Diffraction, Scanning Electron Microscopy equipped with Energy Dispersive X-ray Spectroscopy advanced techniques. These analyses focused on identifying mineral composition, porosity, particle size, and textural features influencing permeability.</div></div><div><h3>Results</h3><div>Salda samples were found to be rich in quartz with minimal diagenetic alteration, exhibiting porosity ranging from 10 to 32% and an average particle size of 7.12 µm, supporting conventional gas extraction methods. Shahbazpur samples, however, contained evaporitic minerals (e.g., halite) and diagenetic features, including iron oxides and silicates, with reduced porosity (8 to 30%) and a finer particle size of 6.73 µm. The presence of syngenetic zircon and alteration minerals suggested possible complex diagenetic processes.</div></div><div><h3>Conclusion</h3><div>Salda gas field conditions favor conventional extraction techniques, whereas Shahbazpur’s mineralogical complexity and compacted matrix require enhanced methods such as hydraulic or waterless fracturing. This study demonstrates a novel approach to correlating mineralogical properties with gas extraction challenges, contributing to sustainable reservoir management in geologically diverse environments.</div></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":"14 ","pages":"Article 100268"},"PeriodicalIF":0.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145528356","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}