Journal of hazardous materials advances最新文献

{"title":"Assessing the capacity of different organic amendments to reduce trifluralin bioavailability in a contaminated sediment","authors":"Jelena Beljin ,&nbsp;Marijana Kragulj Isakovski ,&nbsp;Srđan Rončević ,&nbsp;Lutz Weihermüller ,&nbsp;Snežana Maletić","doi":"10.1016/j.hazadv.2025.100874","DOIUrl":"10.1016/j.hazadv.2025.100874","url":null,"abstract":"<div><div>This study provides new insights into the behavior, fate, and remediation of trifluralin (TFL), a persistent herbicide, in contaminated river sediments. By focusing on bioavailability, desorption, biodegradation, and immobilization, we evaluated the potential of combined bioremediation strategies. Desorption experiments identified XAD-4 resin as the most effective extraction agent, while β-cyclodextrin showed limited efficacy due to solubility constraints. Kinetic modeling confirmed the presence of both fast and slow desorption phases. To reduce TFL bioavailability, sediment amendments with activated carbon (AC), biochar (BC), and compost (CO) were investigated. AC at a rate of 0.5% reduced TFL bioavailability from 67.1% to &lt;10 µg/kg within 90 days, outperforming BC and CO. Under anaerobic conditions, TFL degradation reached near-complete removal within 2 weeks, while XAD-4 enabled &gt;95% extraction efficiency in 8 hours for accurate desorption assessment. Compost supported plant growth and enhanced phytoextraction potential. Phytotoxicity tests confirmed <em>Zea mays</em> as a resilient candidate for phytoremediation. Our findings suggest that integrating anaerobic biodegradation with carbon-rich amendments, particularly AC and BC, presents a promising in-situ remediation strategy. The application of compost offers a sustainable and locally available solution for pollutant sequestration, meriting further investigation for long-term and large-scale use.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"20 ","pages":"Article 100874"},"PeriodicalIF":7.7,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144989993","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":"Electronic wastes in sub-Saharan Africa: A critical review of environmental and health impacts, regulatory responses, and future perspectives","authors":"Patrick Ssebugere ,&nbsp;Ashirafu Miiro ,&nbsp;Henry Matovu ,&nbsp;Silver Odongo ,&nbsp;Charles Drago Kato ,&nbsp;Prudence Mary Babirye ,&nbsp;Josephine Nabuuma ,&nbsp;Mika Sillanpaä ,&nbsp;Douglas Sifuna ,&nbsp;George William Nyakairu","doi":"10.1016/j.hazadv.2025.100873","DOIUrl":"10.1016/j.hazadv.2025.100873","url":null,"abstract":"<div><div>Recent technological advancements coupled with lax policy regulations have caused increased electronic waste (e-waste) burden in the Sub-Saharan Africa (SSA), thereby exacerbating the environmental signatures of hazardous substances including contaminants of emerging concern (CECs), endocrine-disrupting chemicals (EDCs), persistent organic pollutants (POPs), and toxic metals such as lead (Pb), mercury (Hg), and cadmium (Cd), among others. This review synthesized 62 studies published between 2008 and 2025 to assess the environmental and health risks associated with e-waste disposal in SSA. Pb, Hg, Cd, and brominated flame retardants were the most detected hazardous substances. Near e-waste sites, Pb levels in soil ranged from 120 to 14,000 mg/kg, while Cd reached 6.8 mg/kg in topsoil. Water contamination by Hg near informal processing sites ranged from 0.3 to 2.8 µg/L, exceeding the U.S Centers for Disease Control and Prevention (CDC) safety thresholds. Air pollution from open burning releases polycyclic aromatic hydrocarbons (400–1800 ng/m³), dioxins (3.5–19.2 ng/m³), and volatile metals, worsening the environmental health crisis. Informal recycling practices were the primary source of these pollutants, exposing workers and nearby communities to these toxic substances. This review highlighted significantly elevated health risks, with widespread exceedance of safety thresholds (e.g., blood Pb levels up to 309 µg/dL, compared to CDC reference: 5 µg/dL; Cd up to 8.5 µg/L), leading to cognitive deficits, neurological damage, cancer, and respiratory and reproductive disorders, particularly for the vulnerable populations. Observed trends, gaps in recycling infrastructure and policy underscore the urgent need for improved legislation, formal recycling systems, and public awareness to mitigate health risks in the SSA.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"20 ","pages":"Article 100873"},"PeriodicalIF":7.7,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020147","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":"Occurrence and levels of industrial persistent organic pollutants under the Stockholm convention: A review of water resources in southeast Asian countries","authors":"Toan Khanh Vu ,&nbsp;Vincent Fauvelle ,&nbsp;Thi Thao Nguyen ,&nbsp;Van Hoi Bui ,&nbsp;Laure Malleret","doi":"10.1016/j.hazadv.2025.100872","DOIUrl":"10.1016/j.hazadv.2025.100872","url":null,"abstract":"<div><div>The Stockholm Convention (SC) on Persistent Organic Pollutants (POPs) aims to protect the environment and human health by regulating the production and the use of the so-called forever chemicals. Among the compounds listed under the SC, are 209 congeners of Polychlorinated biphenyls (PCBs) and Polybrominated biphenyl ethers (PBDEs), Chlorinated paraffins (CPs) and three molecules and related compounds of Poly- and Perfluoroalkyl substances (PFAS), representing four groups of industrial POPs gathering a huge number of molecules. These chemicals have been extensively used in various applications since the mid-20th century, resulting in their global dispersion as persistent and long-range-transport substances. Moreover, the rapid industrialization and economic development in Southeast Asian countries have heightened the vulnerability of their environments to such pollutants. The differences, both in the phases of economic development and in the history of practices and rulings, implies specific trends of POP concentrations in these developing countries. This articles reviews in sections three to five the occurrence and the reported concentrations of PCBs, PBDEs, and PFAS in the fresh and marine hydro-systems, gathering samples of water, sediment, and aquatic biota, studied across eight Southeast Asian countries over the past three decades. The summarized data provides in-depth information for the national policymakers to align with the objectives of the SC. It shows that these countries are paying increasing attention to document the quality status of the water resources, particularly in connection with the implementation of regulations, or with the edible resources. But the efforts need to be strengthened. Indeed, the review underscores in section 6, the urgent need for the regular environmental monitoring of these broad groups of POPs, points out the knowledge gaps in some countries and for some POPs, and highlights future directions for research to ensure the sustainability of water resources.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"20 ","pages":"Article 100872"},"PeriodicalIF":7.7,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145027127","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":"Elucidating the impact of broiler litter and pinewood biochar application method on metal retention and leaching in undisturbed soil columns using simulated rainfall","authors":"Gurparshad Singh Brar ,&nbsp;Kritika Malhotra ,&nbsp;Rakesh Kumar ,&nbsp;Jasmeet Lamba ,&nbsp;Thomas R. Way ,&nbsp;Rishi Prasad ,&nbsp;Sushil Adhikari","doi":"10.1016/j.hazadv.2025.100860","DOIUrl":"10.1016/j.hazadv.2025.100860","url":null,"abstract":"&lt;div&gt;&lt;div&gt;Repeated and long-term application of broiler litter (BL) to agricultural lands can lead to metal leaching into subsurface soil through preferential flow pathways, thereby raising concerns about groundwater quality. The application of BL along with biochar can provide sustainable solutions for agricultural and environmental management. Biochar, a carbon-rich material, can help reduce metal loss in runoff and mitigate metal leaching while enhancing soil quality and crop productivity. Thus, this study aims to quantify the impact of the BL application method (surface vs. subsurface) and investigate the effect of biochar on trace metal loss in leachate in a no-till pasture field dominated by preferential flow pathways, located in Alabama, United States. Intact undisturbed soil cores (n = 15) were utilized for column-based successive rainfall simulation experiments. Different treatments consisted of surface and subsurface-banded applied BL, surface and subsurface-banded applied BL with pinewood pristine biochar (BC), and a control with no BL and BC. Each treatment underwent three rainfall simulations conducted on the 0&lt;sup&gt;th&lt;/sup&gt;, 5&lt;sup&gt;th&lt;/sup&gt;, and 10&lt;sup&gt;th&lt;/sup&gt; days to understand metal leaching in consecutive drying-wetting scenarios. Breakthrough curves (BTCs) of bromide ions (Br‾) confirmed the presence of preferential flow in all soil columns. Metals, such as nickel (Ni) and chromium (Cr), were below the detection limits in the leachate samples, whereas copper (Cu), zinc (Zn), aluminum (Al), and iron (Fe) were detected in significant concentrations. In the control treatment, leachate samples recorded initial leaching of Cu (0.0002–0.005 mg &lt;em&gt;L&lt;/em&gt;&lt;sup&gt;−1&lt;/sup&gt;), Zn (0.03–0.04 mg &lt;em&gt;L&lt;/em&gt;&lt;sup&gt;−1&lt;/sup&gt;), Fe (0.02–0.07 mg &lt;em&gt;L&lt;/em&gt;&lt;sup&gt;−1&lt;/sup&gt;), and Al (0.19–0.51 mg &lt;em&gt;L&lt;/em&gt;&lt;sup&gt;−1&lt;/sup&gt;). In surface application of BL, treated columns leached more Cu (0.02–0.11 mg &lt;em&gt;L&lt;/em&gt;&lt;sup&gt;−1&lt;/sup&gt;) and Zn (0.03–0.12 mg &lt;em&gt;L&lt;/em&gt;&lt;sup&gt;−1&lt;/sup&gt;) due to the presence of metals in soils in the soluble fraction and changes in soil pH and dissolved organic matter, enhancing metal mobility compared to control columns. No significant difference in Cu and Zn leaching was found for BC application in surface and subsurface BL-applied soil columns. The Al and Fe concentrations in leachate for surface BL application ranged from 0.32 to 0.88 mg &lt;em&gt;L&lt;/em&gt;&lt;sup&gt;−1&lt;/sup&gt; and 0.16 to 1.41 mg &lt;em&gt;L&lt;/em&gt;&lt;sup&gt;−1&lt;/sup&gt;, respectively, which were higher compared to Al and Fe in subsurface BL applications, which ranged from 0.40–0.59 mg &lt;em&gt;L&lt;/em&gt;&lt;sup&gt;−1&lt;/sup&gt; and 0.14–0.35 mg &lt;em&gt;L&lt;/em&gt;&lt;sup&gt;−1&lt;/sup&gt;, respectively. Besides, Fe leaching from surface and subsurface applied BL-amended columns increased over time with consecutive drying-wetting cycles, likely due to reducing conditions. Importantly, BC application leads to reduced Al and Fe leaching in both surface- and subsurface-applied BL-amended columns. However, Al and Fe leaching was similar in BL-amended and","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"20 ","pages":"Article 100860"},"PeriodicalIF":7.7,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145049982","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":"Natural and synthetic zeolites for arsenic removal from water: A comprehensive review of mechanisms, performance, and future perspectives","authors":"Ali Poorkhalil ,&nbsp;Elmira Tayefehseyfi ,&nbsp;Hasan Farrokhzad ,&nbsp;Atefeh Mohsenzadeh","doi":"10.1016/j.hazadv.2025.100866","DOIUrl":"10.1016/j.hazadv.2025.100866","url":null,"abstract":"<div><div>Arsenic contamination in water poses severe global health and environmental risks, necessitating effective and sustainable removal technologies. This review comprehensively evaluates the application of natural and synthetic zeolites for arsenic removal, focusing on their adsorption mechanisms, performance, and operational challenges. Zeolites, with their microporous structures and ion-exchange capabilities, demonstrate high potential, particularly when modified with metals like iron, zinc, or lanthanum, achieving removal efficiencies exceeding 99 % under optimal conditions. Key factors influencing performance including pH, contact time, and particle size are critically analyzed, alongside comparative assessments of natural versus synthetic variants. While zeolite-based adsorbents offer scalable and eco-friendly solutions, challenges such as regeneration, cost, and selectivity must be addressed for widespread implementation. Future perspectives highlight the development of hybrid zeolite systems, advanced modification techniques, and large-scale validation. This review underscores zeolites as promising materials for arsenic remediation, providing actionable insights for advancing water treatment technologies.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"19 ","pages":"Article 100866"},"PeriodicalIF":7.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144917671","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":"A perylene derivative for multi-hazard detection in environmental monitoring: Demonstration via DFT, cellular imaging, and real-time applications","authors":"Muthaiah Shellaiah ,&nbsp;Kien-Wen Sun ,&nbsp;Basheer Aazaad ,&nbsp;Kamlesh Awasthi ,&nbsp;Ming-Chang Lin ,&nbsp;Nobuhiro Ohta ,&nbsp;Wen-Tal Li","doi":"10.1016/j.hazadv.2025.100863","DOIUrl":"10.1016/j.hazadv.2025.100863","url":null,"abstract":"<div><div>Simultaneous detection of multiple hazards like cesium (Cs⁺), hydroxide ions (OH⁻), and picric acid (PA) using a fluorescent probe has not been reported before. To address this, a perylene derivative called <strong>PDIDE</strong> was synthesized and effectively used to detect Cs⁺, OH⁻, and PA with minimal interference. UV–visible and photoluminescence (PL) spectral analyses, along with colorimetric and fluorometric images, clearly demonstrate the sensor's selectivity for <strong>PDIDE</strong>. The PL linear response ranges of <strong>PDIDE</strong> for Cs⁺, OH⁻, and PA are set between 0.2–500, 0.3–1000, and 0.1–100 µM, with detection limits (LODs) of 180, 233, and 71 nM, respectively. Job's plots indicate 1:2 (for Cs⁺ and OH⁻) and 2:1 (for PA) stoichiometries. Association constants (K_a) for <strong>PDIDE</strong> with Cs⁺, OH⁻, and PA are estimated at 8.261 × 10⁻⁵ M⁻², 5.628 × 10⁻⁴ M⁻², and 5.375 × 10⁻⁶ M⁻², respectively. Binding modes, bandgap changes, and mechanisms are analyzed using nuclear magnetic resonance (NMR), mass spectrometry, Fourier-transform infrared spectroscopy (FTIR), density functional theory (DFT), and time-resolved photoluminescence (TRPL). Biocompatibility and sensor applicability are demonstrated through sulforhodamine B (SRB) assays, paper strips, cotton buds, fish, and cellular imaging studies. Spiked interrogations of tap water, Radix Hedysari extract, Nelumbinis Stamen extract, corroded iron rod extract, and soil water extract at various concentrations lead to 63 data points, showing &gt; 93 % recoveries with relative standard deviation (RSD) values of &lt; 5 %, confirming the sensor's practical utility.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"19 ","pages":"Article 100863"},"PeriodicalIF":7.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144888749","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":"Genomic and enzymatic analysis of polyethylene biodegradation by Pseudomonas fluorescens JNU01 isolated from landfill environments","authors":"Ye-Bin Kim ,&nbsp;Seongmin Cheon ,&nbsp;Seung-Do Yun ,&nbsp;Seongmin Kim ,&nbsp;Hyung Gwon Kim ,&nbsp;Min-Ju Seo ,&nbsp;Won Seok Chi ,&nbsp;Chul-Ho Yun ,&nbsp;Bong Hyun Sung ,&nbsp;Chungoo Park ,&nbsp;Soo-Jin Yeom","doi":"10.1016/j.hazadv.2025.100857","DOIUrl":"10.1016/j.hazadv.2025.100857","url":null,"abstract":"<div><div>Polyethylene (PE), the world's most produced plastic, poses significant environmental challenges due to its chemical stability and resistance to natural degradation. Here, we report the first isolation of Pseudomonas fluorescens strain JNU01 from landfill environments that can exclusively grow on PE, reaching OD₆₀₀ of 0.9 within 2 days. PE biodegradation was confirmed using Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FE-SEM), and gas chromatography-mass spectrometry (GC-MS). Comparative genomic analysis revealed that strain JNU01 harbors co-localized alkane monooxygenase (AlkB) and Baeyer-Villiger monooxygenase (BVMO) genes within the same genetic locus, which were completely absent in the non-degrading reference strain DR133. Quantitative RT-PCR showed 1.5-fold upregulation of both genes when cells were grown on PE medium compared to control conditions. Moreover, functional validation demonstrated that recombinant AlkB effectively initiates PE biodegradation through polymer surface hydroxylation under mild conditions (37 °C, pH 7.5). These results suggest a multi-step oxidative pathway involving AlkB and BVMO that could degrade PE by producing 14 distinct metabolites including alkanes, alkanols, and acids. Our findings reveal the first genomically-defined mechanism for complete PE biodegradation, demonstrating that comparative genomic analysis can guide the discovery of novel plastic-degrading enzymes and provide a framework for engineering enhanced plastic waste remediation technologies.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"19 ","pages":"Article 100857"},"PeriodicalIF":7.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144885397","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":"Valorization of toluene from waste gas streams: assessing PHA production by Rhodococcus opacus","authors":"Rebeca Pérez ,&nbsp;Nicolás Díaz-Moreno ,&nbsp;Silvia Rodríguez ,&nbsp;Raquel Lebrero","doi":"10.1016/j.hazadv.2025.100823","DOIUrl":"10.1016/j.hazadv.2025.100823","url":null,"abstract":"<div><div>The conversion of gaseous pollutants from industrial emissions into polyhydroxyalkanoates (PHA) represents a promising strategy for simultaneously reducing environmental impact and producing biodegradable plastics. Volatile organic compounds such as ethylbenzene, toluene, xylene or styrene, are attractive carbon sources for this purpose; however, their sustained bioconversion performance in continuous systems and optimum operating parameters remain unexplored. In this work, a novel approach was investigated using <em>Rhodococcus opacus</em> to valorize toluene into poly(3-hydroxybutyrate) (PHB). Batch experiments confirmed the strain’s capacity to degrade toluene, ethylbenzene, and styrene under both nitrogen-rich and nitrogen-deprived conditions, although PHB accumulation was only observed with toluene and ethylbenzene, reaching up to 11.3 % (w/w). Under continuous operation, <em>R. opacus</em> maintained high toluene removal efficiencies, consistently exceeding 98 %, when supplied with a continuous air stream containing ∼4 g m^-3 of toluene. PHB synthesis was promoted using nitrogen-limiting feast-famine strategies. While extended deprivation promoted high intracellular PHB accumulation (up to 45.7 ± 26.2 %), more frequent cycling yielded better balance between cell growth and polymer formation, with biomass levels reaching 4.7 g L⁻¹ and average PHB content around 12 % over 28 days. This study provides the first evidence of <em>R. opacus</em> supporting continuous toluene biotransformation into PHB, offering valuable insight into its application for gas-phase bioprocesses. Optimizing nutrient management and assessing long-term operational stability will be essential next steps toward industrial deployment.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"19 ","pages":"Article 100823"},"PeriodicalIF":7.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739057","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":"The effects of metals and gut microbiota on weight gain patterns in children admitted to the neonatal intensive care unit: A prospective cohort study","authors":"Yunlong Peng ,&nbsp;Xiongfeng Pan ,&nbsp;Shiting Xiang ,&nbsp;Kunyan Zhao ,&nbsp;Sha Wu ,&nbsp;Yunhui Cao ,&nbsp;Caixia Liu ,&nbsp;Mingyang Wu ,&nbsp;Fei Yang ,&nbsp;Jieyun Yin ,&nbsp;Jun Qiu","doi":"10.1016/j.hazadv.2025.100839","DOIUrl":"10.1016/j.hazadv.2025.100839","url":null,"abstract":"<div><h3>Backgrounds</h3><div>Research indicates that metal exposure and gut microbiota may influence weight gain in children. This study aimed to examine the relationship between metal mixture exposure, gut microbiota composition, and weight gain trajectories among children admitted to the neonatal intensive care unit.</div></div><div><h3>Methods</h3><div>A total of 207 children were recruited from the Children's Hospital of Hunan Province, Central China. Blood metal concentrations were measured using ICP-MS, and gut microbiota composition was determined through 16S rRNA gene sequencing. Group-based trajectory modeling, logistic regression and Bayesian Kernel Machine Regression (BKMR) were used to assess the effects of metal mixtures and gut microbiota on children's weight gain patterns.</div></div><div><h3>Results</h3><div>Four distinct weight gain trajectories were identified over the five-year follow-up: growth retardation group, catch-up growth group, high-end weight group, and normal growth group. Among 26 metals, Cs (<em>OR</em> = 3.208, 95 %<em>CI</em>: 1.107, 9.963), Cu (<em>OR</em> = 3.270, 95 %<em>CI</em>: 1.132, 10.148), W (<em>OR</em> = 3.393, 95 %<em>CI</em>: 1.208, 10.101), As (<em>OR</em> = 0.272, 95 %<em>CI</em>: 0.069, 0.872) and Mn (<em>OR</em> = 0.201, 95 %<em>CI</em>: 0.047, 0.674) were significantly correlated with the growth retardation group. <em>RB41</em>(<em>OR</em> = 9.630, <em>p</em> = 0.016) and <em>Bacteroides</em> (<em>OR</em>=0.272, <em>p</em> = 0.011) in gut microbiota were correlated with the growth retardation group.</div></div><div><h3>Conclusion</h3><div>Mn, As, Cs, Cu, W, Zn and Sb in 26 metals, <em>RB41</em> and <em>Bacteroides</em> in gut microbiota were associated with the trajectory patterns of children. Maintaining optimal blood metal levels and regulating gut microbiota composition during early infancy may have important implications for promoting healthy weight gain trajectories in early childhood.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"19 ","pages":"Article 100839"},"PeriodicalIF":7.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144757189","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":"Environmental impacts of hydrocarbon contaminants and associated potential public health risks","authors":"Joseph Omeiza Alao ,&nbsp;Ahmed M. Saqr ,&nbsp;Daniel A. Ayejoto ,&nbsp;Oche Joseph Otorkpa ,&nbsp;Fahad Abubakar ,&nbsp;Musaab A.A. Mohammed ,&nbsp;Amarachukwu A. Ibe","doi":"10.1016/j.hazadv.2025.100853","DOIUrl":"10.1016/j.hazadv.2025.100853","url":null,"abstract":"<div><div>Hydrocarbons no doubt remain a major wheel of global energy and economic development. However, the insidious environmental impact of hydrocarbon contaminants (HCCs) presents a pressing concern due to the potential health risks associated with elevated levels of Polycyclic Aromatic Hydrocarbons (PAHs), Total Petroleum Hydrocarbons (TPH), and heavy metals (HMs). This study investigates the impact of HCCs at the Kaduna Refinery Petrochemical Corporation (KRPC) in Nigeria, a site selected due to its history of spills and high potential for contamination. The primary goal was to evaluate both the levels and distribution of HCCs in the area, utilizing hydro-chemical analysis and electrical resistivity imaging (ERI) to measure contaminant concentration and spatial spread. Analytical results indicated PAH levels ranging between 0.65 and 1.47 µg/l, TPH concentrations of (0.3421 - 0.5716) µg/l, and HM values from 0.038 to 1.711 mg/l, many falling within and few slightly exceed safety thresholds, established by the World Health Organization (WHO) and Nigeria’s National Directorate of Petroleum Resources (NDPR). ERI data also showed significant anomalies in topsoil resistivity, with values between 5000 and 50000 Ωm, far exceeding the typical regional range of 300–3000 Ωm, indicating notable contamination concentrated near the surface. Although contamination levels relatively align with regulatory standards, continued monitoring is strongly recommended to prevent potential long-term impacts. This study demonstrates the significance of integrating hydrochemical and geophysical methods for detailed environmental assessments, enhancing contamination detection, guiding sustainable environmental management and regulatory enforcement.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"19 ","pages":"Article 100853"},"PeriodicalIF":7.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858480","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}