Journal of hazardous materials advances最新文献

{"title":"Enhanced electrochemical removal of sulfamethazine on Sm-doped Ti4O7 anode: Mechanisms and toxicity evaluation","authors":"Nan Tao ,&nbsp;Yina Tian ,&nbsp;Jianing Wang ,&nbsp;Jie Teng","doi":"10.1016/j.hazadv.2025.100607","DOIUrl":"10.1016/j.hazadv.2025.100607","url":null,"abstract":"<div><div>As one typical broad-spectrum antibiotics, the abuse of sulfonamide induce potential ecology risk to aquatic environment. Here, the novel Sm-doped Ti₄O₇ electrode (Sm-Ti₄O₇) were fabricated using a facile spark plasma sintering (SPS) method for anodic decomposition of recalcitrant pollutants of sulfamethazine (SMZ). Electrochemical degradation experiments demonstrated that the 0.25% Sm-Ti₄O₇ anode achieved a remarkable 91.2% removal SMZ (<em>k</em>_obs = 0.0158 min⁻¹), which the degradation kinetics was 3.16 times higher than that of the pristine Ti₄O₇ anode. Electron paramagnetic resonance (EPR) and quenching experiments confirmed that hydroxyl radicals (•OH) were the primary active species responsible for the SMZ degradation. Linear sweep voltammetry (LSV) revealed that the oxygen evolution potential (OEP) of 0.25% Sm-Ti₄O₇ anode was 2.23 V (vs. standard hydrogen electrode, SHE), which is higher than that of pristine Ti₄O₇ anode. Thus, the one-electron water oxidation reaction was boosted on 0.25% Sm-Ti₄O₇ anode for producing highly reactive of •OH. The degradation pathway and intermediate products were validated using high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS), and the toxicity analysis was also estimated. In summary, the doping of rare metal Sm in Ti₄O₇ could boosts the electro-generation of hydroxyl radical via H₂O oxidation, which make the electrochemical oxidation more effective and efficient.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100607"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nanoplastic exposure inhibits growth, photosynthetic pigment synthesis and oxidative enzymes in microalgae: A new threat to primary producers in aquatic environment","authors":"Pritam Sarkar ,&nbsp;K.A. Martin Xavier ,&nbsp;Satya Prakash Shukla ,&nbsp;Govindarajan Rathi Bhuvaneswari","doi":"10.1016/j.hazadv.2025.100613","DOIUrl":"10.1016/j.hazadv.2025.100613","url":null,"abstract":"<div><div>The acute toxicity of graded concentrations of polysterene nanoplastic (PS NPs) spheres (Size 0.1 µm) was evaluated to ascertain the effects of NPs on growth, vital photosynthetic pigments, protein and oxidative stress enzymes. The findings show that PS NPs inhibited the growth of microalgae (<em>Chlorella vulgaris</em> and <em>Spirulina</em> (<em>Arthrospira</em>) <em>platensis</em>) in a dose-dependent manner. The growth inhibition percentage reached 40.12 % for <em>C. vulgaris</em> and 42.57 % for <em>S. platensis</em>, compared to the control. Additionally, pigment content decreased by 31.62 % to 35.06 %, while protein content dropped by 37.27 % to 48.48 % of both the tested microalgae as the concentration of PS NPs in the medium increased. The oxidative stress created by PS NPs was evident from an increase in catalase and peroxidase activity. The findings conclusively endorse that NPs pollution in the aquatic environment will disrupt the functioning of ecosystems through its detrimental effects on microalgae forming the base of the food chain and supporting the successive trophic levels in the aquatic environment. This research will give a deeper insight into the ecotoxicological impacts of NPs in aquatic environments and the baseline information will be helpful in developing an effective strategy for mitigation of plastic pollution with a greater emphasis on nanoplastics.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100613"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Engineered biocorona on microplastics as a toxicity mitigation strategy in marine environment: Experiments with a marine crustacean Artemia salina","authors":"Camil Rex M ,&nbsp;Anushka Bairoliya ,&nbsp;Shristi Gairola ,&nbsp;Pooja Sureshkumar ,&nbsp;Vidya Niranjan ,&nbsp;Anish Nag ,&nbsp;Amitava Mukherjee","doi":"10.1016/j.hazadv.2024.100558","DOIUrl":"10.1016/j.hazadv.2024.100558","url":null,"abstract":"<div><div>The marine environment has become a major sink for microplastics (MPs) wastes. When MPs interact with biological macromolecules, the biocorona forms on their surface, which can alter their biological reactivity and toxicity. In this study, we investigated the impact of biocorona formation on the toxicity of aminated (NH₂) and carboxylated (COOH) polystyrene MPs towards the marine crustacean <em>Artemia salina</em>. Biocoronated MPs were prepared using cell-free extracts (CFEs) from microalgae <em>Chlorella</em> sp. (phytoplankton) and the brine shrimp <em>Artemia salina</em> (zooplankton). The results revealed that biocorona formation effectively reduced the toxicity of MPs. Pristine NH₂-MPs exhibited higher reactive oxygen species production (ROS) (182%) compared to COOH-MPs (162%) in <em>Artemia salina</em>. Notably, NH₂-MPs coronated with brine shrimp CFE exhibited a substantial reduction in ROS production (127%) than those coronated with algal CFE, with COOH-MPs showing a similar trend (120%). Biocorona formation also significantly decreased malondialdehyde (MDA) levels and antioxidant activity compared to pristine MPs. Molecular docking and dynamics simulations demonstrated a strong binding between polystyrene and acetylcholinesterase (AChE). <em>In vitro</em> studies indicated that pristine NH₂-MPs exhibited more reduction in AChE activity (84%) compared to COOH-MPs (95%). However, no significant reduction in AChE activity was observed upon exposure to MPs coronated with either algal or brine shrimp cell-free extracts. Independent action modeling indicated an antagonistic interaction for MPs coronated with both the CFEs. Pearson correlation and cluster heatmap analysis suggested that the toxicity reduction in <em>Artemia salina</em> might be driven by decreased oxidative stress followed by the corona formation. Overall, this study provides valuable insights into the potential of biomolecules from phytoplankton and zooplankton to reduce MPs toxicity in <em>Artemia salina</em>, while highlighting their role in modulating the toxicity of other marine pollutants.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100558"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of high-performance magnetic biochar for adsorption of Ni2+ and Co2+from spent lithium-ion battery effluent","authors":"Moxin Yu ,&nbsp;Yuhang Sun ,&nbsp;Wenxu Shi ,&nbsp;Xiaoting Wang ,&nbsp;Chen Zhang ,&nbsp;Qingping Ke","doi":"10.1016/j.hazadv.2025.100627","DOIUrl":"10.1016/j.hazadv.2025.100627","url":null,"abstract":"<div><div>The recovery of heavy metal ion pollutants, particularly Ni²⁺ and Co²⁺, from lithium-ion battery effluent represents a pivotal focus in contemporary environmental research. In this study, the magnetic biochar (ISBC_x-y) was synthesized co-hydrothermal method using aloe vera skin (AL) as raw material and Fe₂(SO₄)₃ as and Fe and sulfur source, respectively. The structural and chemical properties of the as-prepared ISBC_x-y was characterized by BET, SEM, FTIR, and Zeta analysis, and its adsorption performance for Ni²⁺and Co²⁺ in waste water was also evaluated. The results show that ISBC_5-1 exhibited a lamellar-like surface with many small flakes, demonstrating a specific surface area of 38 m²<strong>/</strong>g and a total pore volume of 0.06 cm³<strong>/</strong>g, featuring a hierarchical porous structure. The surface chemistry of ISBC_5-1 is enriched with active functional groups, such as O, S, and Fe, facilitating efficient interactions with Ni²⁺ and Co²⁺ via mechanisms including ion exchange, electrostatic adsorption, complexation, and co-precipitation. Adsorption studies revealed that ISBC_5-1′s interaction with these metal ions conformed to the Langmuir adsorption isotherm and pseudo-second-order kinetic model, highlighting predominantly chemical adsorption characteristics. Theoretical maximum adsorption capacities calculated from the Langmuir model indicate impressive values of 153.14 mg/g for Ni²⁺ and 163.67 mg/g for Co²⁺. In addition, at pH 10, ISBC_5-1 achieves a removal efficiency of nearly 100% for Ni²⁺ and Co²⁺, underscoring the significant potential of ISBC_5-1 for effective wastewater treatment applications.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100627"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"GhSERAT1 enhanced the resistance of cotton to cadmium by maintaining the microscopic integrity of chloroplasts in cotton","authors":"Yuan Meng ,&nbsp;Yuping Sun ,&nbsp;Ning Wang ,&nbsp;Shuyan Li ,&nbsp;Lijun Guan ,&nbsp;Yapeng Fan ,&nbsp;Xuke Lu ,&nbsp;Nan Xu ,&nbsp;Shuai Wang ,&nbsp;Hui Huang ,&nbsp;Xiugui Chen ,&nbsp;Junjuan Wang ,&nbsp;Lanjie Zhao ,&nbsp;Lixue Guo ,&nbsp;Hongyu Nan ,&nbsp;Xiaoping Zhu ,&nbsp;Keyun Feng ,&nbsp;Kunpeng Zhang ,&nbsp;Wuwei Ye","doi":"10.1016/j.hazadv.2025.100606","DOIUrl":"10.1016/j.hazadv.2025.100606","url":null,"abstract":"<div><div>Cysteine metabolism is essential for plants to alleviate cadmium (Cd²⁺) stress. Investigating the function of serine acetyltransferase (SAT), the pivotal enzyme in cysteine synthesis, in combating Cd²⁺ stress is highly significant. This study conducted a bioinformatics analysis of the SAT gene family and identified key candidate genes, <em>GhSERAT1;1</em> and <em>GhSERAT1;2</em>, that respond to Cd²⁺ stress. Plants subjected to gene silencing of <em>GhSERAT1;1</em> and <em>GhSERAT1;2</em> through virus-induced gene silencing exhibited a notable reduction in cysteine and glutathione levels, an increase in intracellular malondialdehyde content, and heightened sensitivity to Cd²⁺ stress. Compared with non-silenced plants, those with silenced genes displayed poorer growth conditions, decreased biomass, and more pronounced damage to chloroplast and leaf structures when exposed to Cd²⁺ stress. This study integrated the primary enzyme involved in cysteine synthesis with Cd²⁺ stress, elucidating the relationship between Cd²⁺ and cysteine. These findings significantly enhance our understanding of cysteine synthesis genes and contribute to developing Cd²⁺-resistant plant breeding strategies.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100606"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photocatalytic Reduction of Aqueous Hexavalent Chromium Using Novel Green-Synthesized Magnetite/Chitosan Nanocomposites employing Moringa Oleifera Leaf Extract under UV Irradiation","authors":"Sudarmono ,&nbsp;Nurul Imani Istiqomah ,&nbsp;Rona Cuana ,&nbsp;Larrisa Jestha Mahardhika ,&nbsp;Chotimah ,&nbsp;Edi Suharyadi","doi":"10.1016/j.hazadv.2024.100565","DOIUrl":"10.1016/j.hazadv.2024.100565","url":null,"abstract":"<div><div>The utilization of green synthesized magnetite/chitosan (Fe₃O₄/[C₆H₁₁NO₄]_n(Cs)) nanocomposites catalyst, derived from <em>moringa oleifera</em> (MO) leaf extract, exhibited remarkable efficacy in the UV-induced catalytic transformation of dissolved hexavalent chromium (Cr (VI)). Structural analysis via X-ray diffraction revealed an inverse spinel cubic configuration, while transmission electron microscopy indicated quasi-spherical, heterogeneous morphology. Fourier transform infrared spectroscopy disclosed the existence of characteristic functional groups including metal-oxygen bonds, hydroxyl groups, aliphatic carbon-hydrogen stretches, and various carbon-oxygen linkages, as well as primary amine functionalities. This spectral profile provides evidence for the successful integration of Fe₃O₄ nanoparticles within the Cs. Elemental composition analysis was carried out using energy dispersive X-ray analysis along with scanning electron microscope imaging techniques, resulting in a quantitative assessment of the constituent elements. The unmodified Fe₃O₄ nanoparticles exhibited a composition of 70.9 % iron (Fe) and 29.1 % oxygen (O), while the Cs functionalized Fe₃O₄ nanocomposites demonstrated a more complex elemental distribution: 47.9 % of Fe, 36.4 % of O, 11.3 % of carbon (C), and 4.4 % of nitrogen (N). Magnetic properties assessed through vibrating sample magnetometer and the saturation magnetization of Fe₃O₄, Fe₃O₄/Cs (4:2), and Fe₃O₄/Cs (4:4) are 54.2, 42.0 and 28.0 emu/g, respectively. Ultraviolet-visible spectrophotometer revealed absorption peaks between 365 and 377 nm, with a band gap energy in the interval 2.88–3.00 eV Optimal photocatalytic reduction of Cr(VI) performance was achieved with the composition Fe₃O₄/Cs (4:4) nanocomposites, with an outcome reduction of Cr(VI) of a 76.7 % rate in two hours of irradiation. The characteristics magnetic character of these nanocomposites promotes favorable separation and reuse up to three cycles, enhancing the economic growth and practical application of this wastewater treatment approach. In conclusion the synthesizing of environmentally beneficial Fe₃O₄/Cs nanocomposites is also a promising solution for remediation of Cr(VI) contaminants that is also efficient and sustainable in aqueous environments.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100565"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Per- and polyfluoroalkyl substances (PFAS) exposure in biota and remediation strategies: Toxicological and biochemical perspectives","authors":"Md Muzammel Hossain ,&nbsp;Muhammad Zohaib Nawaz ,&nbsp;Mudasir A Dar ,&nbsp;Alei Geng ,&nbsp;Huda Ahmad Alghamdi ,&nbsp;Song Han ,&nbsp;Daochen Zhu","doi":"10.1016/j.hazadv.2024.100579","DOIUrl":"10.1016/j.hazadv.2024.100579","url":null,"abstract":"<div><div>Per- and polyfluoroalkyl substances (PFAS) have become prominent environmental pollutants because of their widespread adoption in various industries. Despite their known persistence, bioaccumulation, detoxifying mechanisms, enzymes and non-enzymes activity, and toxicity behaviour remained poorly understood. The accumulation of “forever chemicals” has been found in water, plants, finfish, and shellfish. They pose adverse effects that might lead to risk and damage. A considerable amount of various PFAS have been identified in biota, raising concern about environmental standards. The current study has investigated the impacts of PFAS on plants, finfish, and animals based on environments and levels. PFAS can interfere with important biological functions. Increased reactive oxygen species (ROS), toxicity, and possible cell damage might result from exposure. Exposure to PFAS has been implicated in metabolic pathways and oxidative stress. Their effects on the environment alter metabolic pathways, lead to detoxification processes for ROS, C and N, and change the activities of enzymes (SOD, CAT, POD) and non-enzymes (MDA, AsA, and GSH). Metabolic processes in breathing creatures depend on the TCA cycle. This article highlights distinct ways the impact of PFAS contamination in water, plants, finfish, and shellfish, which is shown in different model diagrams. Contributes to a deeper understanding of PFAS removal techniques for environmental sustainability.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100579"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exposure to cadmium and its impacts on human health: A short review","authors":"Puthiyavalappil Rasin ,&nbsp;Ashwathi A V ,&nbsp;Sabeel M Basheer ,&nbsp;Jebiti Haribabu ,&nbsp;Juan F. Santibanez ,&nbsp;Claudio Allard Garrote ,&nbsp;Arunachalam Arulraj ,&nbsp;Ramalinga Viswanathan Mangalaraja","doi":"10.1016/j.hazadv.2025.100608","DOIUrl":"10.1016/j.hazadv.2025.100608","url":null,"abstract":"<div><div>One of the most harmful heavy metals that is commonly found in water, air, soil, and sediments is cadmium (Cd). Humans are most exposed to cadmium through inhalation, cigarette smoking, and consumption of contaminated food and water. It shows a half-life of around 25 to 30 years in plants and mammals. Epidemiological evidence suggests a link between cadmium exposure and several cancers: breast, lung, prostate, nasopharynx, pancreas, kidney, <em>etc</em>. Thus, this type of article is necessary to raise awareness in society and help individuals manage heavy metal ion toxicity. With an emphasis on the organs most impacted, the mechanisms of toxicity, and the long-term effects of exposure, this article aims to present a thorough analysis of the effects of cadmium exposure on human health. It also identifies the gaps in the existing literature and makes recommendations for future research areas to fully comprehend the effects of cadmium and create efficient mitigation and prevention plans.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100608"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling micro-nanoplastics (MNPs) induced developmental toxicity, transgenerational transport and associated signaling pathways","authors":"Muskan Budhwar ,&nbsp;Sweety Mehra ,&nbsp;Madhu Sharma ,&nbsp;Aitizaz Ul Ahsan ,&nbsp;Mani Chopra","doi":"10.1016/j.hazadv.2024.100581","DOIUrl":"10.1016/j.hazadv.2024.100581","url":null,"abstract":"<div><div>Micro- and nanoplastics (MNPs) have emerged as pervasive environmental contaminants, raising significant concerns regarding their potential detrimental impacts on human health. These small plastic particles can infiltrate the body through ingestion, inhalation, and cutaneous exposure, resulting in a variety of harmful effects on aquatic and terrestrial organisms particularly during their vulnerable developmental stages. Despite increasing evidence of MNPs prevalence in the placenta and breast milk, less is known about their potential developmental hazards. Nevertheless, few transgenerational studies have demonstrated a variety of MNPs induced hazardous effects, including impaired embryogenesis, altered growth patterns, and abnormalities during development in offspring. These adverse developmental outcomes occur due to the accumulation of MNPs in progenies, which instigate oxidative stress, inflammatory responses, DNA damage, metabolic perturbations and endocrine disruption. Thus, the current review delves into the translocation of MNPs through placenta and breast milk, as well as their transgenerational bioaccumulation &amp; implications in fetal and neonatal stages of different animal models. Moreover, this study also addresses the current research gaps and emphasizes the necessity to examine the long-term transgenerational impacts of MNPs in higher mammalian models. Furthermore, novel prevention and mitigation strategies are required to deal with the transgenerational hazards of MNPs. Additionally, formulations of vital public health policies and environmental protection measures are crucial for ground-level reduction of MNPs exposure.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100581"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143175905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prediction of soil arsenic concentration in European soils: A dimensionality reduction and ensemble learning approach","authors":"Mohammad Sadegh Barkhordari ,&nbsp;Chongchong Qi","doi":"10.1016/j.hazadv.2025.100604","DOIUrl":"10.1016/j.hazadv.2025.100604","url":null,"abstract":"<div><div>Arsenic contamination in soils poses significant risks to human health and the environment, necessitating accurate prediction methods to support effective mitigation strategies. This study addresses critical gaps in previous research, including multicollinearity among predictor variables, limited consideration of anthropogenic factors, and insufficient use of dimensionality reduction techniques. Principal Component Analysis (PCA) was employed for feature extraction, and six ensemble learning models were compared to enhance prediction accuracy for arsenic concentrations in European soils. Key environmental, chemical, physical, and anthropogenic factors were incorporated. Random Forest emerged as the top-performing model, achieving a mean squared error of 0.71 and a prediction accuracy of 89 % on test data. The results highlight the significant role of anthropogenic factors—particularly agricultural practices—in influencing arsenic levels, alongside chemical properties like phosphorus concentration and soil pH. The study demonstrates that advanced feature engineering, including PCA, can address multicollinearity while improving machine learning model performance. The findings provide critical insights for environmental risk assessment and policymaking, emphasizing the need for targeted interventions in regions with high anthropogenic activity. By combining robust data preprocessing and state-of-the-art ensemble learning techniques, this research offers a scalable and effective framework for predicting soil contamination and guiding remediation efforts across diverse geographic settings.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100604"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}