Journal of Hazardous Materials最新文献

{"title":"Geochemical stability of vitrified glass prepared from arsenic trioxide roaster waste from the Giant Gold Mine (Yellowknife, NT)","authors":"Alana O. Wang, Carol J. Ptacek, David Wilson, David W. Blowes","doi":"10.1016/j.jhazmat.2025.138098","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.138098","url":null,"abstract":"This study evaluated the geochemical stability of three ATRW-based glasses, containing 5<!-- --> <!-- -->wt.% As (G5), 10<!-- --> <!-- -->wt.% As (G10), and 15<!-- --> <!-- -->wt.% As (G15), using selective extraction protocols. Micro X-ray fluorescence (µ-XRF) maps incorporated with micro-X-ray absorption near edge spectroscopy (µ-XANES) and bulk XANES across the As K-edge were collected to determine the distributions and oxidation number of As within the glasses. Antimony K-edge XANES were collected to determine oxidation number of Sb within the glasses. Uncrushed or crushed subsamples were immersed into solutions to target the potential for dissolution of the vitrified glasses under different environmental characteristics, including phases associated with water-soluble, cation/anion exchangeable, weak-acid extractable, amorphous-to-poorly crystalline, oxidizable, and strong-acid leachable. No discrete particles of ATRW were observed in the µ-XRF maps. Results of XANES analysis across the As K-edge and the Sb K-edge suggests G5 mainly contains oxidized As and Sb phases, whereas G10 and G15 contain up to 30% of As(III) and Sb(III), respectively. Water-soluble extractable As concentrations from the glasses (&lt;0.001<!-- --> <!-- -->g<!-- --> <!-- -->L^-1) were all ¹0⁴ times lower than from the ATRW in water at 25 °C (10<!-- --> <!-- -->g<!-- --> <!-- -->L^-1). Limited As release (&lt;0.025<!-- --> <!-- -->mg<!-- --> <!-- -->g^-1 per mass of glass) from the glasses occurs in solutions targeting exchangeable phases. Release of As increases in more acidic solutions (pH&lt; 3), especially in solutions targeting amorphous-to-poorly-crystalline phases. Crushed glasses leach commensurately higher masses of As. The results of this study indicate that vitrifying ATRW decreases its solubility and associated As release.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"50 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Potential Lead Exposure from Aluminum Cooking Pots in Lower and Middle-Income Countries","authors":"Gordon Binkhorst, Barbara Jones, Aelita Sargsyan, Alexander van Geen, Keith Wagner","doi":"10.1016/j.jhazmat.2025.138134","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.138134","url":null,"abstract":"Food cooked in pots produced from recycled aluminum can contain impurities including lead, especially in lower and middle-income countries (LMICs) where quality control may be limited. Our study analyzed 113 mostly new aluminum pots from 25 LMICs for total lead with an XRF and lab-based leachable lead to mimic the release of lead while cooking. Total lead concentrations in the pots ranged from &lt;5 ppm to almost 16,000 ppm, averaging 1,600 ppm, with the highest total lead concentrations in pots from Vietnam, Pakistan, Indonesia, and India. Leachable lead concentrations ranged from &lt;1 to 2,900<!-- --> <!-- -->μg/L averaging 100<!-- --> <!-- -->μg/L after boiling 4% acetic acid for 2<!-- --> <!-- -->hours. Total and leachable lead concentrations were roughly proportional, with pots manufactured by casting leaching proportionally more lead compared to wrought pots manufactured from rolled aluminum. Optical microscopy, scanning electron microscopy and energy dispersive X-ray spectroscopy of selected leached pots indicated a heterogeneous distribution of lead in the aluminum matrix and pitting of the aluminum along preferential pathways. Modelling using U.S. EPA’s All Ages Lead Model indicated that leachate concentrations &gt;250<!-- --> <!-- -->μg/L, found in about one tenth of the pots tested, could result in blood lead levels that exceed the WHO’s intervention threshold of 5<!-- --> <!-- -->μg/dL in children and women of child-bearing age. This could be an overestimate, however, as laboratory leaching conditions were probably more aggressive than typical foods.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"75 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Cross-Platform Detection of Microplastics in Human Biological Tissues: Comparing Spectroscopic and Chromatographic Approaches","authors":"Lin Zhang, Jiaqi Tian, Xiaodan Zhu, Linlin Wang, Xiang Yun, Liyang Liang, Shuyin Duan","doi":"10.1016/j.jhazmat.2025.138133","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.138133","url":null,"abstract":"Microplastic (MP) contamination in ecosystems underscores concerns about human bioaccumulation, yet analytical challenges persist due to complex biological matrices and polymer diversity. To systematically evaluate the efficacy of complementary analytical platforms, we conducted this study to systematically evaluate Raman microscopy and pyrolysis gas chromatography-mass spectrometry (py-GC/MS) for complementary MP detection in human biological samples. Building upon prior research frameworks, 48 paired endometrial and urine samples from parturient women were analyzed under rigorously controlled protocols to minimize exogenous contamination. Raman microscopy identified six polymer types, with polytetrafluoroethylene (PTFE) and polystyrene (PS) constituting primary components across both sample types. Particle size distributions spanned 1.23–6.98 μm, exhibiting comparable mean diameters in urine (2.85 ± 1.26 μm) and endometrial samples (2.89 ± 1.40 μm). Subsequent py-GC/MS analysis revealed previously undetected polymer co-occurrences (PS, PC, P, and PV) in samples initially classified as single-polymer PTFE or PS via Raman spectroscopy, thereby exposing inherent disparities in method-specific sensitivity and resolution. The follow-up multi-method comparison demonstrates that Raman microscopy excels in particle-specific morphological characterization, while py-GC/MS provides superior polymer quantification and composite identification. Our findings underscore the necessity of integrating orthogonal analytical approaches to overcome methodological limitations and achieve comprehensive MP profiling in complex biological systems.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"183 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating the Contributions of Properties in Doping-modified Co-based Oxides to Oxidation of Volatile Organic Compounds","authors":"Yanling Zhao, Huan Liu, Hao Huang, YiPeng Wang, Hong Yao","doi":"10.1016/j.jhazmat.2025.138125","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.138125","url":null,"abstract":"Doping-modification is extensively employed to enhance the catalyst activity for VOCs oxidation. However, the specific interactions between doped metals and different VOC components remain unclear. This method can positively or negatively influence various catalyst properties, yet their contributions to catalytic activity remain unverified. Herein, the Co₃O₄ was doped with Ce, Mn, or Cu. The relative contributions of their properties to the catalytic performance for three typical VOCs (toluene, butyl acetate and acetone) were quantified by Analysis of Variance. The F-value followed the order as Co³⁺_/ Co²⁺&gt; <em>O</em>_latt-s &gt; <em>O</em>_ads &gt; crystal size(<em>Cs</em>) ≈ BET specific surface area(<em>S</em>_BET) for all VOCs. The Co³⁺_/ Co²⁺ exhibited the prominent influence on the catalytic activity, followed by active oxygen species. Ce doping with the most significant positive effect on Co³⁺_/ Co²⁺, <em>O</em>_ads, <em>S</em>_BET and <em>Cs</em> exhibited the optimal catalytic performance for all VOCs. It achieved the low temperature for 90% VOC conversion(<em>T</em>₉₀), with 242℃ for toluene, 190℃ for butyl acetate and 187℃ for acetone, and maintained activity for over 5600<!-- --> <!-- -->min. Mn doping with the most significant positive effect on <em>O</em>_latt-s, also promoted the catalytic activity, particularly for the oxygen-containing VOCs. In contrast, Cu doping with the inferior <em>Cs</em> and <em>S</em>_BET, slightly enhanced active oxygen species and almost unvarying Co³⁺_/ Co²⁺ could only slightly promote the catalytic activity for toluene and acetone. The established relationship between the doped metals, catalyst properties and the VOCs components, and the quantified contribution will provide strategy for the targeted modification of catalysts to efficiently oxidize VOCs.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"1 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Effective role and mechanism of scrap iron filings in controlling hydrogen sulfide production in septic tanks","authors":"Zhiqiang Zhang, Shanshan Son, Wanze He, Xiaowei Ren, Yating Ren, Honglin Yuan, Heliang Pang, Jing Yang, Jinsuo Lu","doi":"10.1016/j.jhazmat.2025.138114","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.138114","url":null,"abstract":"Long-term anaerobic conditions in septic tanks exacerbate the release of hazardous gases, such as hydrogen sulfide (H₂S), which degrades urban air quality. While traditional iron salt addition effectively inhibits H₂S production, its large-scale application imposes economic burdens and challenges for low-carbon emission reduction. To address this issue, this study proposes the use of scrap iron filings (SIFs) as a source of Fe²⁺ and Fe³⁺ ions and evaluates their efficacy in sulfide control through a long-term laboratory-scale septic tank reactor. Experimental results demonstrated that the addition of SIFs reduced the average concentration of dissolved sulfides by 45.6% and gaseous H₂S by 92.6%. Microbial community analysis of septic tank sediments revealed a significant decrease in sulfate-reducing bacteria (SRB) and an increase in sulfur-oxidizing bacteria (SOB), indicating that SIFs influence microbial activity by suppressing sulfide generation while enhancing sulfide oxidation. Furthermore, the addition of SIFs slightly increased the carbon-to-nitrogen (C/N) and carbon-to-phosphorus (C/P) ratios in the effluent, potentially improving subsequent nitrogen and phosphorus removal in wastewater treatment. These findings suggest a promising strategy for reducing hydrogen sulfide emissions and corrosion in septic tanks.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"58 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Micro- and nanoplastics differ in particle-mucus interactions: the sight on rheological properties, barrier dysfunction and microbiota dysbiosis","authors":"Xuemei Meng, Xue Zheng, Wenting Mai, Jianying Gao, Yanli Fan, Jing Fu, Junnan Xu","doi":"10.1016/j.jhazmat.2025.138130","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.138130","url":null,"abstract":"Micro- and nanoplastics (MNPs) in food can cross the intestinal barrier and accumulate in multiple organs. Mucus serves as a vital defense against such invaders, but the nature of its interaction with MNPs remains unclear. In this study, we investigated changes in the rheological properties of mucus and the physicochemical properties of MNPs in co-incubation. The effects of MNPs on the mucus layer and gut microbiota were also assessed in vivo at environmentally relevant doses. MNPs adsorbed proteins in mucus, increasing apparent particle size, and reducing the surface charges. They broke the selective permeability of barrier and destroyed the histomorphology and microenvironment of microbiota in mice. Notably, nanoplastics were wrapped in mucus. They induced mucus secretion, crosstalk of microbiota, and reactive oxygen species (ROS) burst. Microplastics reduced the composite viscosity of mucus and thinned the mucus layer, facilitating diversification of harmful bacteria. Size plays a crucial role in particle-mucus interactions: nanoplastics tend to penetrate the mucus layer and disrupt microbial colonization, while microplastics contribute to mucus depletion. The physicochemical properties of MNPs and mucus characteristics affect microbial community, modulating the MNPs biotoxicity. These findings provide insights into mucus barrier homeostasis in health risk of MNPs.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"5 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Exploring the relationships between prenatal phthalate exposure and neonatal thyroid function: A prospective cohort study","authors":"Zhaoying Xiong, Gaga Mahai, Aizhen Wang, Fasheng Li, Xi Qian, Yizhao Huang, Yuanyuan Li, Wei Xia, Shunqing Xu","doi":"10.1016/j.jhazmat.2025.138132","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.138132","url":null,"abstract":"Previous studies have reported the thyroid disruptive effects of prenatal phthalate exposure; however, evidence on the impact of prenatal phthalate alternative exposure on neonatal thyroid function is still limited. We aimed to investigate the associations between prenatal exposure to phthalates and phthalate alternatives (individually and as a mixture) and neonatal thyroid function, based on longitudinal data from the Wuhan Healthy Baby Cohort Study. We measured concentrations of phthalate and phthalate alternative metabolites (mPAEs) in urine samples, provided by 1202 mothers at three trimesters, and neonatal thyroid stimulating hormone (TSH) levels in heel-prick blood samples. The results suggested higher levels of some mPAEs, particularly monomethyl phthalate (MMP) and mono-2-ethyl-5-Carboxypentyl terephthalate (MECPTP), were associated with increased neonatal TSH. Interquartile range (IQR) increases of mPAEs were associated with an increase in TSH ranging from 8.21% to 13.5%, and the associations were more likely to occur in girls. Quantiles g-computation models revealed that joint exposure to phthalates was significantly associated with increased TSH in three trimesters, MEOHP and MMP were the most predominant contributors to the positive associations. The research results imply that prenatal phthalate exposure may interfere with thyroid hormone homeostasis, which warrants further replication.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"33 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Selenium-enriched Kazachstania unispora KU2 ameliorates patulin-induced intestinal injury in mice by mediating the gut microbiota and selenoprotein P synthesis","authors":"Furong Wang, Xian Wang, Yilei Xiao, Ruixin Liu, Xiaoben Li, Jinpeng Hu, Wei Song, Kewei Feng, Yahong Yuan, Tianli Yue","doi":"10.1016/j.jhazmat.2025.138129","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.138129","url":null,"abstract":"Patulin (PAT) is a foodborne mycotoxin that causes intestinal injury. Selenium (Se)-enriched <em>Kazachstania unispora</em> (<em>K. unispora</em>) KU2 is a novel dietary Se carrier, and Se exerts important roles in intestinal homeostasis. Here, we examined the ameliorative effects of <em>K. unispora</em> KU2 and Se-enriched <em>K. unispora</em> KU2 against PAT-induced intestinal injury. Results indicated that both <em>K. unispora</em> KU2 and Se-enriched <em>K. unispora</em> KU2 alleviated PAT-induced inflammatory infiltration, disrupted gut microbiota, and associated metabolic imbalances, indicating the probiotic potential of this strain. Se-enriched <em>K. unispora</em> KU2 exhibited more pronounced remediation comparable to <em>K. unispora</em> KU2, revealing the promoting effect of Se. Furthermore, Se-enriched <em>K. unispora</em> KU2 restored intestinal Se homeostasis by upregulating SEPP1 levels to mitigate intestinal injury. Using pseudo germ-free mouse models, we confirmed that gut microbiota was required for the improvement in SEPP1 synthesis and intestinal transport mediated by Se-enriched <em>K. unispora</em> KU2. These findings elucidate a mechanism whereby the alleviation of PAT-induced intestinal injury by Se-enriched <em>K. unispora</em> KU2 is linked to upregulation of SEPP1 by the gut microbiota, suggesting its potential therapeutic relevance for intestinal diseases.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"103 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 general strategy for design SCR catalysts with enhanced resistance to multiple poisons through constructing highly dispersed paired acid-base sites","authors":"Si Jiang, Shuai Guo, Yaogeng Lu, Yong Yin, Bo Zhao, Yifei Sun, Xiang Li","doi":"10.1016/j.jhazmat.2025.138124","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.138124","url":null,"abstract":"The complex composition of solid waste in co-processing within industrial kilns leads to the coexistence of multiple poisons in flue gas, which accelerates the deactivation of SCR catalysts. In this work, solid superacid modified CeO₂ with highly dispersed acid-base sites was constructed, achieving the capture of acidic/basic poisons. Moreover, the designed catalyst retained active sites for the adsorption and activation of NH₃ after poisoning. The sulfated ZrO₂/CeO₂ exhibited 2.0, 1.1, 2.3, 1.2, and 2.6-fold increase of NO_<em>x</em> conversion than commercial V₂O₅-WO₃/TiO₂ when Pb, As, Zn, K, and Cd loading. The highly dispersed monodentate sulfate species on the catalyst surface provided abundant acid sites for the capture of basic poisons (e.g., Cd, Pb, K, Zn) and NH₃ adsorption. The basic CeO₂ doped with Zr captured acidic poisons (e.g., As) and promoted the activation of NH₃ due to the high capacity of Ce³⁺ and oxygen vacancies. Spectroscopic characterization revealed that the highly dispersed acid-base sites along with more Ce³⁺ species on the catalyst surface facilitated the adsorption and activation of NH₃, crucial for the formation of the reaction intermediate NH₂NO. This work may provide an approach to develop efficient SCR catalysts with superior resistance to poisons and reduce the generation of waste catalysts.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"111 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"AMF and biochar reshape the bacterial network in rhizosphere soil of Ricinus communis under chromium (Cr) stress and improve soil quality","authors":"Yuqiang Wen ,&nbsp;Ruotong Wu ,&nbsp;Tianle Xu ,&nbsp;Ranran Cao ,&nbsp;Ge Song ,&nbsp;Dandan Qi ,&nbsp;Wei Chang ,&nbsp;Kun Li ,&nbsp;Yuan Ping ,&nbsp;Mengmeng Zhang ,&nbsp;Xiaoxu Fan ,&nbsp;Fuqiang Song","doi":"10.1016/j.jhazmat.2025.138122","DOIUrl":"10.1016/j.jhazmat.2025.138122","url":null,"abstract":"<div><div>Arbuscular mycorrhizal fungi (AMF) and biochar synergistically mitigate Cr toxicity in plants. <em>Ricinus communis</em> roots are proficient in heavy metal accumulation. However, the role of AMF and biochar in reshaping bacterial networks during Cr remediation remains unclear. This study utilized pot experiments to investigate how the “AMF-biochar-<em>Ricinus communis</em>” system influences bacterial networks in rhizosphere soil under Cr stress and enhances soil quality. Results indicated that under 150 mg/kg Cr stress, the AMF-biochar combination significantly increased castor plant fresh weight and soil quality index by 359.70 % and 121.25 %, respectively, compared to treatments without biochar or AMF (P &lt; 0.05). Notably, under Cr stress, the combined treatment significantly increased the relative abundance of <em>Arthrobacter</em> while decreasing that of <em>Streptomyces</em>. Network analysis and community assembly results revealed that AMF and biochar together significantly enhanced soil bacterial network complexity and average niche width. In conclusion, the AMF-biochar combination effectively promoted <em>Ricinus communis</em> growth under Cr stress and regulated rhizosphere soil bacterial community stability and assembly processes, providing valuable insights into plant-microbe interactions under Cr(VI) stress.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"492 ","pages":"Article 138122"},"PeriodicalIF":12.2,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}