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GhSERAT1 enhanced the resistance of cotton to cadmium by maintaining the microscopic integrity of chloroplasts in cotton
IF 5.4 Q2 ENGINEERING, ENVIRONMENTAL Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2025.100606
Yuan Meng , Yuping Sun , Ning Wang , Shuyan Li , Lijun Guan , Yapeng Fan , Xuke Lu , Nan Xu , Shuai Wang , Hui Huang , Xiugui Chen , Junjuan Wang , Lanjie Zhao , Lixue Guo , Hongyu Nan , Xiaoping Zhu , Keyun Feng , Kunpeng Zhang , Wuwei Ye
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, GhSERAT1;1 and GhSERAT1;2, that respond to Cd2+ stress. Plants subjected to gene silencing of GhSERAT1;1 and GhSERAT1;2 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.
{"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 (Cd<sup>2+</sup>) stress. Investigating the function of serine acetyltransferase (SAT), the pivotal enzyme in cysteine synthesis, in combating Cd<sup>2+</sup> 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 Cd<sup>2+</sup> 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 Cd<sup>2+</sup> 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 Cd<sup>2+</sup> stress. This study integrated the primary enzyme involved in cysteine synthesis with Cd<sup>2+</sup> stress, elucidating the relationship between Cd<sup>2+</sup> and cysteine. These findings significantly enhance our understanding of cysteine synthesis genes and contribute to developing Cd<sup>2+</sup>-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}
引用次数: 0
Photocatalytic Reduction of Aqueous Hexavalent Chromium Using Novel Green-Synthesized Magnetite/Chitosan Nanocomposites employing Moringa Oleifera Leaf Extract under UV Irradiation
IF 5.4 Q2 ENGINEERING, ENVIRONMENTAL Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2024.100565
Sudarmono , Nurul Imani Istiqomah , Rona Cuana , Larrisa Jestha Mahardhika , Chotimah , Edi Suharyadi
The utilization of green synthesized magnetite/chitosan (Fe3O4/[C6H11NO4]n(Cs)) nanocomposites catalyst, derived from moringa oleifera (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.
{"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 (Fe<sub>3</sub>O<sub>4</sub>/[C<sub>6</sub>H<sub>11</sub>NO<sub>4</sub>]<sub>n</sub>(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 Fe<sub>3</sub>O<sub>4</sub> 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 Fe<sub>3</sub>O<sub>4</sub> nanoparticles exhibited a composition of 70.9 % iron (Fe) and 29.1 % oxygen (O), while the Cs functionalized Fe<sub>3</sub>O<sub>4</sub> 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 Fe<sub>3</sub>O<sub>4</sub>, Fe<sub>3</sub>O<sub>4</sub>/Cs (4:2), and Fe<sub>3</sub>O<sub>4</sub>/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 Fe<sub>3</sub>O<sub>4</sub>/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 Fe<sub>3</sub>O<sub>4</sub>/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}
引用次数: 0
Per- and polyfluoroalkyl substances (PFAS) exposure in biota and remediation strategies: Toxicological and biochemical perspectives
IF 5.4 Q2 ENGINEERING, ENVIRONMENTAL Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2024.100579
Md Muzammel Hossain , Muhammad Zohaib Nawaz , Mudasir A Dar , Alei Geng , Huda Ahmad Alghamdi , Song Han , Daochen Zhu
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.
{"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}
引用次数: 0
Exposure to cadmium and its impacts on human health: A short review
IF 5.4 Q2 ENGINEERING, ENVIRONMENTAL Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2025.100608
Puthiyavalappil Rasin , Ashwathi A V , Sabeel M Basheer , Jebiti Haribabu , Juan F. Santibanez , Claudio Allard Garrote , Arunachalam Arulraj , Ramalinga Viswanathan Mangalaraja
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, etc. 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.
{"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}
引用次数: 0
Unveiling micro-nanoplastics (MNPs) induced developmental toxicity, transgenerational transport and associated signaling pathways
IF 5.4 Q2 ENGINEERING, ENVIRONMENTAL Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2024.100581
Muskan Budhwar , Sweety Mehra , Madhu Sharma , Aitizaz Ul Ahsan , Mani Chopra
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 & 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.
{"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}
引用次数: 0
Prediction of soil arsenic concentration in European soils: A dimensionality reduction and ensemble learning approach
IF 5.4 Q2 ENGINEERING, ENVIRONMENTAL Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2025.100604
Mohammad Sadegh Barkhordari , Chongchong Qi
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.
{"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}
引用次数: 0
Examining sulfate radical-based enhanced oxidation techniques to degradation pharmaceutically active substances in aqueous media: With acetaminophen serving as a case study
IF 5.4 Q2 ENGINEERING, ENVIRONMENTAL Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2025.100599
Sepideh Bakhtshokouhi, Ali Assadi
Acetaminophen (ACT), a widely used analgesic and antipyretic, frequently appears in various aquatic environments due to its extensive use and incomplete removal by conventional wastewater treatment processes. The persistence and potential adverse effects of ACT necessitate the development of effective treatment technologies. Sulfate radical based-advanced oxidation processes (SR-AOPs), which generate sulfate radicals with high oxidative potential, are examined for their ability to degrade complex organic molecules such as ACT. To increase sulfate radical generation and promote degradation efficiency, a variety of catalytic systems have been reviewed in this study, including carbon-based materials, transition metal oxides, and composite catalysts. Key factors such as pH, temperature, and the presence of co-contaminants are analyzed for their impact on the degradation process. The study also addresses the stability and leaching of catalysts, which are critical for the sustainability and environmental safety of SR-AOPs. Furthermore, the formation of by-products during ACT degradation is discussed, with a focus on the identification and toxicity of these intermediates. The review underscores the importance of monitoring both the formation and breakdown of intermediates to fully understand the toxicity dynamics and ensure the safety of the treated effluents. By integrating recent advancements and case studies, this review highlights the strengths and limitations of SR-AOPs and identifies areas for future research. The work offers to optimize SR-AOPs for large-scale water treatment applications, thereby providing a comprehensive understanding of their potential to treat water contaminated with pharmaceutically active compounds.
{"title":"Examining sulfate radical-based enhanced oxidation techniques to degradation pharmaceutically active substances in aqueous media: With acetaminophen serving as a case study","authors":"Sepideh Bakhtshokouhi,&nbsp;Ali Assadi","doi":"10.1016/j.hazadv.2025.100599","DOIUrl":"10.1016/j.hazadv.2025.100599","url":null,"abstract":"<div><div>Acetaminophen (ACT), a widely used analgesic and antipyretic, frequently appears in various aquatic environments due to its extensive use and incomplete removal by conventional wastewater treatment processes. The persistence and potential adverse effects of ACT necessitate the development of effective treatment technologies. Sulfate radical based-advanced oxidation processes (SR-AOPs), which generate sulfate radicals with high oxidative potential, are examined for their ability to degrade complex organic molecules such as ACT. To increase sulfate radical generation and promote degradation efficiency, a variety of catalytic systems have been reviewed in this study, including carbon-based materials, transition metal oxides, and composite catalysts. Key factors such as pH, temperature, and the presence of co-contaminants are analyzed for their impact on the degradation process. The study also addresses the stability and leaching of catalysts, which are critical for the sustainability and environmental safety of SR-AOPs. Furthermore, the formation of by-products during ACT degradation is discussed, with a focus on the identification and toxicity of these intermediates. The review underscores the importance of monitoring both the formation and breakdown of intermediates to fully understand the toxicity dynamics and ensure the safety of the treated effluents. By integrating recent advancements and case studies, this review highlights the strengths and limitations of SR-AOPs and identifies areas for future research. The work offers to optimize SR-AOPs for large-scale water treatment applications, thereby providing a comprehensive understanding of their potential to treat water contaminated with pharmaceutically active compounds.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100599"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177325","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}
引用次数: 0
Insightful analytical review of potential impacts of microplastic pollution on coastal and marine ecosystem services
IF 5.4 Q2 ENGINEERING, ENVIRONMENTAL Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2024.100578
Nezha Mejjad , Amine El Mahdi Safhi , Abdelmourhit Laissaoui
The increasing volume of plastic waste and the widespread use of plastic products pose significant challenges to the effectiveness of strategies, policies, and management projects aimed at combating ocean plastic pollution. Three billion people's livelihoods depend on marine and coastal resources, and the market value of these resources and related blue industries is estimated at US$3 trillion annually, which is about 5 % of global GDP. Plastics make up around 80 % of the total waste discarded in the ocean, and each year, over 13 million metric tons of plastic enter the marine environment threatening biodiversity and affecting ecosystem services upon which the economy of coastal countries depends. This paper explores the impact of plastic waste on understudied marine and coastal ecosystem services, utilizing the Millennium Ecosystem Assessment framework as a guide. This study reveals that prioritizing the assessment and study of supporting services is critical for maintaining and sustaining other services. This review provides data on the impact of plastic on marine ecosystem services and highlights the need for effective plastic waste management to sustain these services. Coordinated global actions and initiatives among regions, nations, and industries remain crucial steps in addressing and tackling plastic pollution in the ocean.
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引用次数: 0
Community level vulnerability of groundwater fluoride contamination and exposure by the application of multi-criteria model
IF 5.4 Q2 ENGINEERING, ENVIRONMENTAL Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2024.100555
Kousik Das , Harish Puppala , Ghanshyam Pandey , Mijanur Mondal , Pankaj Pathak , Uttiya Dey , Sudeshna Chell , Sumana Dutta , Pankaj Kumar
Elevated fluoride (F⁻) levels in groundwater, primarily due to geogenic processes, pose significant health risks, including dental and skeletal fluorosis and neurological disorders. This study aimed to quantify source-dependent F⁻ exposure at the community level in selected tropical dry regions of Andhra Pradesh, India. These locations include Chintal Cheruvu, Rompicharala, Shantamangalur, Thimmapur, and Nadendla. Community surveys and drinking water sample analyses were conducted in these regions. Dental Fluorosis Index (DFI) was used to estimate exposure levels across age and sex groups. Findings of surveys indicate that groundwater consumption with high F⁻ (4.3 mg/L) results in the highest exposure dose (0.62 mg/kg/day), with Chintal Cheruvu identified as the most affected. A strong positive correlation was observed between exposure dose, water F⁻ content, and the Community Fluorosis Index (CFI), with R² values of 0.98 and 0.97, respectively. Dental fluorosis prevalence exceeded 80% across all age groups, and household surveys revealed 100% unawareness of F⁻ exposure risks. Though there exist many ways to determine the impact of fluoride, the hierarchy of regions may change with the type of parameter chosen. To address this, we developed the Fluoride Impact Index (FII), a multi-criteria index computed considering various parameters indicating the impact of fluoride in a region. The magnitude of FII for Chintal Cheruvu is 0.563 which is highest among the considered regions indicating that it is most impacted region that needs remedial measures first in the hierarchy. Rompicharala with FII as 0.252, Nadendla (0.223), Shantamangalur (0.214), and Thimmapur (0.188) follows the hierarchy. These findings highlight the urgent need to raise awareness about F⁻ exposure risks and to identify sustainable alternative water sources. Immediate interventions, including human health risk assessments using the USEPA approach and the provision of safe drinking water, are critical to achieving SDG-6 of safe drinking water for all by 2030.
{"title":"Community level vulnerability of groundwater fluoride contamination and exposure by the application of multi-criteria model","authors":"Kousik Das ,&nbsp;Harish Puppala ,&nbsp;Ghanshyam Pandey ,&nbsp;Mijanur Mondal ,&nbsp;Pankaj Pathak ,&nbsp;Uttiya Dey ,&nbsp;Sudeshna Chell ,&nbsp;Sumana Dutta ,&nbsp;Pankaj Kumar","doi":"10.1016/j.hazadv.2024.100555","DOIUrl":"10.1016/j.hazadv.2024.100555","url":null,"abstract":"<div><div>Elevated fluoride (F⁻) levels in groundwater, primarily due to geogenic processes, pose significant health risks, including dental and skeletal fluorosis and neurological disorders. This study aimed to quantify source-dependent F⁻ exposure at the community level in selected tropical dry regions of Andhra Pradesh, India. These locations include Chintal Cheruvu, Rompicharala, Shantamangalur, Thimmapur, and Nadendla. Community surveys and drinking water sample analyses were conducted in these regions. Dental Fluorosis Index (DFI) was used to estimate exposure levels across age and sex groups. Findings of surveys indicate that groundwater consumption with high F⁻ (4.3 mg/L) results in the highest exposure dose (0.62 mg/kg/day), with Chintal Cheruvu identified as the most affected. A strong positive correlation was observed between exposure dose, water F⁻ content, and the Community Fluorosis Index (CFI), with R² values of 0.98 and 0.97, respectively. Dental fluorosis prevalence exceeded 80% across all age groups, and household surveys revealed 100% unawareness of F⁻ exposure risks. Though there exist many ways to determine the impact of fluoride, the hierarchy of regions may change with the type of parameter chosen. To address this, we developed the Fluoride Impact Index (FII), a multi-criteria index computed considering various parameters indicating the impact of fluoride in a region. The magnitude of FII for Chintal Cheruvu is 0.563 which is highest among the considered regions indicating that it is most impacted region that needs remedial measures first in the hierarchy. Rompicharala with FII as 0.252, Nadendla (0.223), Shantamangalur (0.214), and Thimmapur (0.188) follows the hierarchy. These findings highlight the urgent need to raise awareness about F⁻ exposure risks and to identify sustainable alternative water sources. Immediate interventions, including human health risk assessments using the USEPA approach and the provision of safe drinking water, are critical to achieving SDG-6 of safe drinking water for all by 2030.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100555"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176345","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}
引用次数: 0
Plastic contamination from latex and nitrile disposable gloves has the potential to influence plant productivity and soil health
IF 5.4 Q2 ENGINEERING, ENVIRONMENTAL Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2025.100605
Enikő Mészáros , Attila Bodor , Kamilla Kovács , Sarolta Papp , Etelka Kovács , Katalin Perei , Kata Frei , Gábor Feigl
The COVID-19 pandemic has led to a surge in plastic waste due to the widespread use of disposable protective gloves (DPGs), which pose a novel risk to the environment and potentially disrupt ecosystems. This study investigated the impact of latex and nitrile DPG fragments on the early growth and development of Brassica napus seedlings and soil microbial activity—an area not previously explored. Short-term in vitro experiments, which were performed under controlled conditions, revealed statistically significant inhibition of primary root length, with latex fragments at a 0.5% concentration reducing growth by up to 30%. To determine whether the surrounding environment of the plastic fragments and roots modulates the effects of DPGs, we also employed rhizotron systems that simulate realistic soil conditions. These systems, highlighting the role of the environment in plant responses, showed that while the effects on root and shoot growth were moderate compared with those in the in vitro setup, significant changes still occurred. The study revealed that latex fragments generally promoted leaf area, whereas nitrile fragments had mixed effects. Additionally, DPG contamination differentially altered soil enzyme activities and microbial biomass, indicating potential shifts in soil health. These findings provide compelling evidence of the complex interactions between DPGs and plant‒soil systems, underscoring the ecological risks associated with this type of pollution and the urgent need for improved plastic waste management to protect agricultural ecosystems.
Statement of environmental implications
The presence of disposable plastic glove (DPG) fragments in agricultural environments poses a significant environmental concern, potentially disrupting root growth dynamics, altering shoot morphology, and impacting soil microbial activity. These findings highlight the need for enhanced waste management strategies to mitigate plastic pollution in agricultural settings, safeguarding plant health, soil fertility, and ecosystem resilience.
{"title":"Plastic contamination from latex and nitrile disposable gloves has the potential to influence plant productivity and soil health","authors":"Enikő Mészáros ,&nbsp;Attila Bodor ,&nbsp;Kamilla Kovács ,&nbsp;Sarolta Papp ,&nbsp;Etelka Kovács ,&nbsp;Katalin Perei ,&nbsp;Kata Frei ,&nbsp;Gábor Feigl","doi":"10.1016/j.hazadv.2025.100605","DOIUrl":"10.1016/j.hazadv.2025.100605","url":null,"abstract":"<div><div>The COVID-19 pandemic has led to a surge in plastic waste due to the widespread use of disposable protective gloves (DPGs), which pose a novel risk to the environment and potentially disrupt ecosystems. This study investigated the impact of latex and nitrile DPG fragments on the early growth and development of <em>Brassica napus</em> seedlings and soil microbial activity—an area not previously explored. Short-term <em>in vitro</em> experiments, which were performed under controlled conditions, revealed statistically significant inhibition of primary root length, with latex fragments at a 0.5% concentration reducing growth by up to 30%. To determine whether the surrounding environment of the plastic fragments and roots modulates the effects of DPGs, we also employed rhizotron systems that simulate realistic soil conditions. These systems, highlighting the role of the environment in plant responses, showed that while the effects on root and shoot growth were moderate compared with those in the <em>in vitro</em> setup, significant changes still occurred. The study revealed that latex fragments generally promoted leaf area, whereas nitrile fragments had mixed effects. Additionally, DPG contamination differentially altered soil enzyme activities and microbial biomass, indicating potential shifts in soil health. These findings provide compelling evidence of the complex interactions between DPGs and plant‒soil systems, underscoring the ecological risks associated with this type of pollution and the urgent need for improved plastic waste management to protect agricultural ecosystems.</div><div><strong>Statement of environmental implications</strong></div><div>The presence of disposable plastic glove (DPG) fragments in agricultural environments poses a significant environmental concern, potentially disrupting root growth dynamics, altering shoot morphology, and impacting soil microbial activity. These findings highlight the need for enhanced waste management strategies to mitigate plastic pollution in agricultural settings, safeguarding plant health, soil fertility, and ecosystem resilience.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100605"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176349","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}
引用次数: 0
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Journal of hazardous materials advances
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