Environmental Geochemistry and Health最新文献

{"title":"Trace elements in Mytella strigata and Perna viridis from three Chinese coastal regions: comparison and safety assessments.","authors":"Yifei Zhang, Peizhen Ma, Mingjie Mu, Chenxia Zuo, Xiaojie Ma, Yi Zhu, Zhen Zhang","doi":"10.1007/s10653-025-02580-z","DOIUrl":"https://doi.org/10.1007/s10653-025-02580-z","url":null,"abstract":"<p><p>Food safety concerns affect life health. Mussels are a significant source of high-quality marine protein in China, but their ability to bioaccumulate heavy metals raises concerns regarding food safety, warranting further investigation. This study compares the concentrations of seven trace elements include six heavy metals (Cd, Cr, Hg, Pb, Cu, Zn) and harmful element inorganic arsenic (iAs) in the soft tissues of two mussel species, i.e. the invasive Mytella strigata (Hanley, 1843) and the native, commercially important Perna viridis (Linnaeus, 1758), collected from same habitats of Haikou, Shanwei, and Zhanjiang, China. The results revealed species-related variations in trace elements concentrations. Zinc (Zn) exhibited the highest concentration, while cadmium (Cd) and mercury (Hg) had the lowest levels in both mussel species. M. strigata was more proficient in accumulating iAs, Cu, and Pb than P. viridis, but was less efficient in accumulating Cd. Correlation analysis showed significant positive correlations between iAs-Pb and iAs-Zn (p < 0.05). Heavy metal pollution and food safety evaluations indicated that iAs had the highest single-factor pollution index in both species across all locations. The Nemerow comprehensive indices for M. strigata from both Shanwei and Zhanjiang, and P. viridis from Zhanjiang, exceeded 3, indicating severe pollution. Target hazard quotient analysis of iAs suggested a potential health risk for M. strigata from Shanwei. Therefore, the trace elements and food safety of wild mussels, especially invasive mussels, should draw more attention.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"273"},"PeriodicalIF":3.2,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144316236","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":"A scientometric analysis of biochar applications for soil remediation in mining-affected environments: research trends, intellectual structure, and emerging themes.","authors":"Dengkui Zhang, Erastus Mak-Mensah","doi":"10.1007/s10653-025-02583-w","DOIUrl":"https://doi.org/10.1007/s10653-025-02583-w","url":null,"abstract":"<p><p>This study conducts a scientometric analysis to explore research trends, intellectual structures, and emerging themes in biochar applications for soil remediation in mining-affected environments from 2014 to 2024. Using bibliometric data retrieved from Scopus and Web of Science Core Collection, a dataset of 6093 unique peer-reviewed articles was analyzed. Descriptive bibliometric indicators, co-authorship and co-citation networks, and keyword co-occurrence patterns were visualized using the Bibliometrix R package and CiteSpace. The findings reveal significant growth in biochar research post-2018, driven by its increasing application in stabilizing heavy metals and improving soil quality. Co-citation cluster analysis identifies key thematic areas, including \"mine soil,\" \"cadmium-contaminated soil,\" and \"dynamic redox conditions,\" reflecting biochar's role in addressing complex contamination challenges. High citation and sigma values emphasize seminal contributions, particularly on biochar's physicochemical properties and its interactions with heavy metals and microbial communities. Emerging trends highlight growing interest in ecological restoration, microbial dynamics, and innovative approaches such as nanobiochar and machine learning applications. This study provides critical insights into the evolution and interdisciplinary scope of biochar research, offering a roadmap for advancing its application in soil remediation and sustainable land management. Future directions include optimizing biochar formulations for diverse contaminants, integrating computational tools, and exploring its long-term ecological impacts to enhance its transformative potential for environmental sustainability.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"272"},"PeriodicalIF":3.2,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144316210","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":"PM_2.5 from biofuel smoke induces inflammatory response through the TRPC6/Ca²⁺/NLRP3 signaling pathway.","authors":"Yan Chen, Na Zhan, Jinhuang Xu, Yupeng Huang, Yuying Su, Zhongqin Liu, Haisheng Feng, Wenxin Ji, Jiahao Liang, Shenting Zhao, Jianhua Li","doi":"10.1007/s10653-025-02578-7","DOIUrl":"10.1007/s10653-025-02578-7","url":null,"abstract":"<p><p>Household air pollution caused by biomass burning is strongly linked to pulmonary diseases, primarily due to the emission of fine particulate matter (PM_2.5). Pulmonary macrophages, located in the interstitial space and alveolar lumen, are vulnerable to PM_2.5 exposure and play a crucial role in the resulting inflammatory responses. This study investigates the impact of biofuel smoke-derived PM_2.5 (BPM_2.5) on the activation of the NOD-like receptor family pyrin domain-containing protein 3 (NLRP3) inflammasome in macrophages. Short-term exposure to PM_2.5-rich biofuel smoke in rats induced significant pulmonary inflammation, characterized by increased numbers of neutrophils and macrophages in the bronchoalveolar lavage fluid, along with elevated expression of NLRP3 and transient receptor potential channel 6 (TRPC6) in lung tissues. In vitro, BPM_2.5 exposure upregulated the expression of NLRP3 inflammasome components and TRPC6 in macrophages. Notably, knockout of Trpc6 reversed the BPM_2.5-induced increase in NLRP3, ASC, and Caspase 1 expression, decreased intracellular Ca²⁺ concentration ([Ca²⁺]_i), and suppressed the release of pro-inflammatory cytokines IL-1β and IL-18. These findings highlight that BPM_2.5 activates the NLRP3 inflammasome via the TRPC6/Ca²⁺/NLRP3 pathway, contributing to inflammation. This study provides new insights into the molecular mechanisms underlying PM_2.5-induced pulmonary inflammation and suggests potential approaches for the prevention and treatment of PM_2.5-related respiratory diseases.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"269"},"PeriodicalIF":3.2,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144301390","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":"Health risks associated with occupational contaminants of heavy metals across different professions.","authors":"Sosan Andleeb Khan, Syed Muhammad Nurulain, Baseet Haroon Khan, Aneela Shoukat, Sajid Mehmood, Rabeet Haroon Khan, Rashid Nazir Qureshi, Amina Zafar, Ammara Younas, Syed Tahir Abbas Shah","doi":"10.1007/s10653-025-02587-6","DOIUrl":"https://doi.org/10.1007/s10653-025-02587-6","url":null,"abstract":"<p><p>People in various occupations are chronically exposed to a wide range of workplace pollutants that affect overall health. Among these, certain heavy metals pose a risk even at low concentrations over prolonged exposure. This study aims to examine the health effects of specific heavy metals with chronic exposure in different occupational groups within the Pakistani population. A case-control approach was used, comprising 404 individuals with chronic exposure and 170 age- and gender-matched controls. Volunteers from seven different occupational groups participated in the study, including pump attendants, automobile mechanics, woodworkers, garment workers, furniture shop workers, electric/electronics workers, and office employees. Heavy metals were identified using the ICP-MS method, while renal, hepatic, pancreatic, and lipid parameters were assessed through standard colorimetric and enzymatic techniques. Heavy metals, including Mn, Ni, Co, Cu, and Pb, were detected at varying concentrations, with higher levels observed in exposed groups compared to the control group. Hepatic markers (ALT, AST, ALP, LDH, and GGT), renal function tests (BUN and creatinine), pancreatic parameters (insulin, glucose, amylase, lipase, and HOMA-IR), and lipid profile components (triglycerides, LDL, HDL, and total cholesterol) were found to be dysregulated in the exposed group. The findings conclude that the studied occupational groups face multiple health risks due to continuous exposure to the mixture of heavy metals. Notably, the presence of Pb was associated with multiple organ toxicity. Additionally, trace levels of heavy metals were found in workers not directly involved in metal-related tasks, raising concerns in developing countries where workplace safety measures are often inadequate.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"270"},"PeriodicalIF":3.2,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144309762","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":"Pilot-scale stabilization of toxic metal leachates from zinc plant residues using half-burnt dolomite: implications for remediation at Kabwe legacy mine in Zambia.","authors":"Walubita Mufalo, Takahiko Arima, Toshifumi Igarashi, Mayumi Ito, Tsutomu Sato, Shingo Tomiyama, Imasiku Nyambe, Marthias Silwamba, Hokuto Nakata, Shouta Nakayama, Mayumi Ishizuka","doi":"10.1007/s10653-025-02581-y","DOIUrl":"https://doi.org/10.1007/s10653-025-02581-y","url":null,"abstract":"<p><p>Stabilizing toxic elements in mine wastes is a practical strategy for countermeasures against improper disposal. Kabwe, Zambia, one of Africa's most lead (Pb)-polluted cities, faces severe contamination from historic zinc plant residues (ZPRs). This study validates the chemical stabilization of Pb and zinc (Zn) in ZPRs using half-burnt dolomite (HbD) in four embankments, two of which were treated with 10% HbD. The embankments were constructed with/without covering soil and a bottom adsorption layer containing soil with HbD (pilot-scale experiments). Five years after construction, batch experiments were conducted to evaluate the leaching behavior of Pb, Zn, and other coexisting ions from the embankments. Mechanisms of stabilization were investigated via surface binding characterization, mineralogical/elemental analysis, sequential extraction, and thermodynamic modeling of the leachates. The ZPRs were mainly composed of anglesite (PbSO₄), gypsum (CaSO₄·2H₂O) and quartz (SiO₂), with elevated Pb and Zn contents ranging from 55,700 to 73,800 mg/kg and 16,500 to 25,300 mg/kg, respectively. Untreated-ZPRs indicated that Zn leaching was driven by the dissolution of soluble Zn-sulfates in mildly acidic conditions, whereas Pb remained immobile due to its association as PbSO₄. In ZPRs-HbD-treated, stabilization of Pb and Zn was facilitated by the decrease in their exchangeable phases and enhanced incorporation into stable carbonate phases, along with binding with Fe-oxyhydroxides, confirmed by X-ray photoelectron spectroscopy. Pilot-scale experiments demonstrated that the bottom soil adsorption layer could effectively sequester leached Pb and Zn from untreated-ZPRs by stabilizing them in the soil matrix-carbonate and Fe-oxyhydroxide phases. Furthermore, the results suggest that a soil cover could form a protective barrier for oral ingestion-induced bioaccessible Pb and Zn in the stabilized residues. Given the extent of legacy pollution in Kabwe, this stabilization technique coupled with a soil cover presents a promising solution for ZPRs contamination from legacy mines.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"271"},"PeriodicalIF":3.2,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144309763","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":"Effect of hydrochemical conditions on transport of HFPO-DA in saturated quartz sand and limestone porous media.","authors":"Yanfeng Shi, Xinle Han, Lixingzi Wu, Ling Fu, Weina Xue, Xuli Jing, Jing Xu, Zhibin Zhang, Botao Ding","doi":"10.1007/s10653-025-02532-7","DOIUrl":"https://doi.org/10.1007/s10653-025-02532-7","url":null,"abstract":"<p><p>Hexafluoropropylene oxide dimer acid (HFPO-DA, tradename Gen-X) is used as a substitute to perfluorooctanoic acid (PFOA). Its widespread presence in the environment and potential health risks on humans. Nevertheless, the research on transport of HFPO-DA in saturated porous media remains limited. This study investigates the effects of hydrochemical conditions on the transport behavior of HFPO-DA and PFOA in quartz sand and limestone porous media, such as ionic type (Na⁺, Ca²⁺), ionic strength (1 mM, 10 mM, 50 mM) and initial solution pH (pH = 4, 7, 10). Findings indicate that both HFPO-DA and PFOA have high mobility in saturated media. The transport of HFPO-DA through quartz sand and limestone porous media is not notably influenced by different ionic types and strengths, with recoveries all over 98.94% and R_f all below 1.02. Similarly, PFOA showed high mobility under different ionic conditions, with recoveries exceeding 101.68% and Rf less than 1.02.The influence of initial pH on the transport of HFPO-DA showed that HFPO-DA is pH-sensitive in quartz sand, with retention enhanced and significant trailing of the BTC at pH = 4; however, the pH-buffering capacity of limestone media reduced the impact of pH on HFPO-DA transportation. Compared with PFOA, HFPO-DA transported faster at pH = 4 with an R_f value of 0.97, lower than that of PFOA at 1.21, due to its smaller molecular weight and shorter carbon chain. Overall, the research reveals the potent mobility of HFPO-DA and PFOA in the environment, highlighting their groundwater pollution potential and environmental risks.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"268"},"PeriodicalIF":3.2,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144293551","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":"Eco-friendly and effectively glyphosate removal using novel banana peel-derived biopolymer-supported CoFe₂O₄ activated peroxydisulfate: kinetic and mechanism insights.","authors":"Lan Huong Nguyen, Thanh Nghia Pham, Nam Thai Van","doi":"10.1007/s10653-025-02571-0","DOIUrl":"https://doi.org/10.1007/s10653-025-02571-0","url":null,"abstract":"<p><p>In this work, an eco-friendly and novel heterogeneous catalyst deriving biopolymer extracted from banana peel for supporting CoFe₂O₄ (CoFe₂O₄@BP-BiP) was successfully developed to activate peroxydisulfate (PDS) for mineralization removal of glyphosate (GP) herbicide from wastewater. GP mineralization performance, evaluating via COD removal efficiency, in CoFe₂O₄@BP-BiP/PDS system was compared with that in CoFe₂O₄/PDS system under various operational conditions. The chemical-physical properties were systematically analyzed to explore the mineralization mechanisms of GP. Quenching and competitive anion tests were conducted to study mineralization mechanisms of GP by CoFe₂O₄@BP-BiP activing PDS during catalytic process. The results illustrate that composition of BP-BiP and CoFe₂O₄ remarkably reduced the agglomeration of nanoparticles and enriching oxygen-containing functional groups (OCFGs), which accelerated electron transfer cycles of Co³⁺/Co²⁺ and Fe³⁺/Fe²⁺ redox couples to continuously regenerate Fe²⁺ and Co²⁺. This led to the effective decomposition of PDS, generating more reactive oxygen species (ROS) for promoted mineralization of GP. CoFe₂O₄@BP-BiP system exhibited higher GP mineralization performance and rate, approximately twofold greater than the CoFe₂O₄/PDS system. Mechanistic studies showed that GP mineralization occurred via both non-free radical and free radical pathways, involving ROS such as singlet oxygen (¹O₂) and radicals (^*SO₄^-, ^*OH, ^*O₂^-). Additionally, CoFe₂O₄@BP-BiP demonstrated excellent stability and reusability across five consecutive runs with minimal Co and Fe leaching. These findings suggest that CoFe₂O₄@BP-BiP is an effective and sustainable catalyst for activating PDS in the removal of glyphosate from wastewater.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"267"},"PeriodicalIF":3.2,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144283025","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":"Unveiling the power of nanotechnology: a novel approach to eliminating antibiotic-resistant bacteria and genes from municipal effluent.","authors":"Maede Esmaeili Khoshmardan, Hadi Esmaeili Khoshmardan, Behnam Khoshandam, Mohamadreza Massoudinejad, Saeed Motesaddi Zarandi, Hassan Abdoos","doi":"10.1007/s10653-025-02569-8","DOIUrl":"https://doi.org/10.1007/s10653-025-02569-8","url":null,"abstract":"<p><p>The increasing global population and declining freshwater resources have heightened the urgency of ensuring safe and accessible water supplies.Query The persistence of antibiotic-resistant bacteria (ARB) and antibiotic-resistant genes (ARGs) in municipal effluents poses a significant public health threat, exacerbated by the widespread use of antibiotics and the inadequate removal of contaminants in wastewater treatment facilities. Conventional treatment methods often fail to eliminate these emerging pollutants, facilitating their entry into agricultural systems and natural water bodies, thereby accelerating the spread of antimicrobial resistance. To address these challenges, interdisciplinary strategies in water treatment are essential. Nanotechnology has emerged as a promising approach due to its unique physicochemical properties, biocompatibility, and high efficiency in detecting and removing biological and chemical contaminants. Various nanomaterials, including graphene-based structures, Carbon nanotubes (CNTs), noble metal nanoparticles (gold (Au) and silver (Ag)), silicon and chitosan-based nanomaterials, as well as titanium and Zinc oxide (ZnO) nanomaterials, demonstrate potent antimicrobial effects. Moreover, nanosensors and photocatalysts utilizing these nanomaterials enable precise detection and effective degradation of ARB and ARGs in wastewater. This review examines the mechanisms by which nanotechnology-based materials can mitigate the risks associated with antibiotic resistance in urban effluents, focusing on their applications in pathogen detection, pollutant removal, and wastewater treatment. By integrating nanotechnology into existing treatment frameworks, we can significantly enhance the efficiency of water purification processes, ultimately contributing to global water security and the protection of public health.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"266"},"PeriodicalIF":3.2,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144282947","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":"Mining tailings as a frontier for sustainable nanomaterials: advancing circular economy and environmental innovation.","authors":"Sukhpreet Singh, Pankaj Maurya, Amit Karmakar, Prakash Kumar Maurya, Nidhi Pandey, Sandeep Kumar, Tanish Gupta","doi":"10.1007/s10653-025-02566-x","DOIUrl":"https://doi.org/10.1007/s10653-025-02566-x","url":null,"abstract":"<p><p>The mining industry plays a crucial role in global economic growth and technological advancement, faces persistent challenges in managing mining tailings pose significant environmental and societal risks. Mine tailings are primarily composed of finely milled rock, water, and extraction chemicals, often lead to soil and water contamination, atmospheric pollution, and ecological disruption when improperly managed. Recent advancements have transformed mining tailings from waste into valuable resources for synthesizing nanomaterials (NMs) through sustainable extraction processes. Emerging extraction methods, including acidic and alkaline treatments and chemical reduction, enable the recovery of metals like copper, iron, nickel, and gold in nanoparticulate forms. These NMs exhibit exceptional properties enhanced reactivity, tunable optical and mechanical behaviors and support diverse applications in catalysis, environmental remediation, medicine, and energy storage. NMs derived from mining tailings align with circular economic principles, addressing global resource shortages while offering economic and environmental benefits. Their production not only mitigates waste management challenges but also reduces dependence on primary resources. Despite promising advancements, challenges such as process optimization, toxicity management, scalability, and regulatory gaps remain. We emphasize the necessity of life cycle assessments, green chemistry practices, and policy frameworks to ensure safe and efficient industrial integration. This review provides a comprehensive insight into current technologies, applications, risks, and future research directions, underscoring the transformative potential of mining tailings for sustainable development.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"265"},"PeriodicalIF":3.2,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144274478","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":"Adsorption properties and influencing factors of antibiotics on microplastics under simulated gastric fluid environment.","authors":"Jie Jiang, Jiaqian Zhang, Boyan Liu, Yuelin Huang, Hecheng Bai, Meng Zhang, Xinpei Li, Meng Xu, Yanxiao Jiang","doi":"10.1007/s10653-025-02573-y","DOIUrl":"https://doi.org/10.1007/s10653-025-02573-y","url":null,"abstract":"<p><p>Microplastics (MPs) and antibiotics (ATs) are emerging pollutants. Recent studies have confirmed that MPs can act as carriers for toxic pollutants, releasing and accumulating these substances within organisms upon ingestion. Additionally, MPs undergo aging processes within organisms, affecting their ability to adsorb pollutants. This study investigated the adsorption behavior of three aged MPs including polypropylene (PP), polylactic acid (PLA) and polystyrene (PS) for typical ATs in a simulated human gastric fluid environment. The results indicated that the adsorption capacity of MPs for ATs decreases slightly with increasing pH and significantly with higher ionic strength. Smaller particle sizes exhibited higher adsorption capacities. MPs aged in simulated gastric fluid exhibited significantly greater adsorption capacities than their original counterparts. Among the four antibiotics tested, amoxicillin (AMX), ciprofloxacin (CIP), levofloxacin (LEV), and sulfadiazine (SD), the three microplastics exhibited the highest adsorption capacity for AMX. The adsorption capacities were determined as follows: PP-AMX (1.65 mg g^-1), PLA-AMX (1.47 mg g^-1), and PS-AMX (1.48 mg g^-1). Furthermore, the adsorption of ATs on aged MPs followed a pseudo-second-order model, and isotherm analysis aligned with the Freundlich model, suggesting a non-uniform, multilayer surface adsorption process. These findings deepen the understanding of interactions between aged MPs and ATs in the human gastric fluid environment and provide crucial information for ecological risk assessments of MPs.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"264"},"PeriodicalIF":3.2,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144274476","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}