Journal of hazardous materials advances最新文献_第10页

Transport of typical chlorinated hydrocarbons in soils: Transport behavior, phase distribution, sensitivity analyses

IF 5.4

Journal of hazardous materials advances Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2025.100620

Qiong Wang , Jiahe Chen , Guofeng Shi , Yile Yan , Liangzhong Li

{"title":"Transport of typical chlorinated hydrocarbons in soils: Transport behavior, phase distribution, sensitivity analyses","authors":"Qiong Wang , Jiahe Chen , Guofeng Shi , Yile Yan , Liangzhong Li","doi":"10.1016/j.hazadv.2025.100620","DOIUrl":"10.1016/j.hazadv.2025.100620","url":null,"abstract":"<div><div>Chlorinated hydrocarbons (CHCs) are toxic, insoluble, resistant to degradation, and commonly found in soil, posing risks to human health and environmental safety. This study constructed six soil column models to simulate the migration and distribution of CHCs in soil, and their migration pathways and sensitivity parameters were investigated by numerical simulation, to assess contamination levels at a polluted site. The results showed that the penetration time of CHCs across different soil columns followed this order: clay column > (loam + clay) column > loam column > (loam + clay + sand) column > (loam + sand) column > sand column. Among the CHCs, 1,2,4-trichlorobenzene had a significantly longer penetration time compared to chlorobenzene and carbon tetrachloride. CHCs were mostly present in the free-phase (∼50 %) of the soil columns, while carbon tetrachloride was mainly in the gas phase (∼28 %), 1,2,4-trichlorobenzene in the residual phase (∼35 %), and chlorobenzene in the dissolved phase (∼25 %). Sensitivity analysis revealed that density, dispersion coefficient, and linear adsorption coefficient were the most sensitive parameters influencing CHCs transport, while porosity and permeability had minimal impact. 1,2,4-trichlorobenzene showed the highest sensitivity, followed by chlorobenzene, and then carbon tetrachloride. This study provides valuable insights into the migration patterns and phase distribution of CHCs in soil, which can help predict contamination levels at real sites and assess ecological risks. The findings offer an important theoretical basis for optimizing remediation technologies and improving pollution control and risk assessment strategies.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100620"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143343034","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

Environmental applications of carbon dots: Addressing microplastics, air and water pollution

IF 5.4

Journal of hazardous materials advances Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2025.100591

Rich Jhon Paul Latiza , Jerry Olay , Carlou Eguico , Rommel Jose Yan , Rugi Vicente Rubi

{"title":"Environmental applications of carbon dots: Addressing microplastics, air and water pollution","authors":"Rich Jhon Paul Latiza , Jerry Olay , Carlou Eguico , Rommel Jose Yan , Rugi Vicente Rubi","doi":"10.1016/j.hazadv.2025.100591","DOIUrl":"10.1016/j.hazadv.2025.100591","url":null,"abstract":"<div><div>Carbon dots (CDs) have emerged as a promising class of nanomaterials for addressing critical environmental challenges. Their unique optical, chemical, and electronic properties enable various applications, including microplastic detection, gas sensing, and water remediation. By leveraging their fluorescence properties, CDs can sensitively detect microplastics in diverse environmental matrices. Additionally, their ability to interact with gas molecules makes them suitable for developing efficient gas sensors to monitor air pollutants. In water remediation, CDs can be utilized as adsorbents, photocatalysts, and electrochemical sensors to remove heavy metals, organic pollutants, and other contaminants. Despite significant advancements, several challenges persist. These include the need for scalable and environmentally friendly synthesis methods, improved selectivity and sensitivity, and long-term stability. Future research should focus on addressing these limitations and exploring innovative applications of CDs in environmental remediation. By harnessing the potential of CDs, we can contribute to a cleaner and more sustainable future.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100591"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143175904","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

A state-of-the-art review on green synthesis and modifications of ZnO nanoparticles for organic pollutants decomposition and CO2 conversion

IF 5.4

Journal of hazardous materials advances Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2024.100588

Zakariyya Uba Zango , Abdurrahman Garba , Fatimah Bukola Shittu , Saifullahi Shehu Imam , Abdurrashid Haruna , Muttaqa Uba Zango , Ismael A. Wadi , Usman Bello , Haruna Adamu , Basem E. Keshta , Dmitry Olegovich Bokov , Omirserik Baigenzhenov , Ahmad Hosseini-Bandegharaei

{"title":"A state-of-the-art review on green synthesis and modifications of ZnO nanoparticles for organic pollutants decomposition and CO2 conversion","authors":"Zakariyya Uba Zango , Abdurrahman Garba , Fatimah Bukola Shittu , Saifullahi Shehu Imam , Abdurrashid Haruna , Muttaqa Uba Zango , Ismael A. Wadi , Usman Bello , Haruna Adamu , Basem E. Keshta , Dmitry Olegovich Bokov , Omirserik Baigenzhenov , Ahmad Hosseini-Bandegharaei","doi":"10.1016/j.hazadv.2024.100588","DOIUrl":"10.1016/j.hazadv.2024.100588","url":null,"abstract":"<div><div>Photocatalysis has emerged as a promising technology to tackle the escalating environmental pollution. Zinc oxide (ZnO), by the virtue of its excellent properties, offers immense potential for simultaneous CO<sub>2</sub> conversion and organic pollutant degradation. The current review comprehensively scrutinizes the green synthesis routes, modifications, and catalytic applications of ZnO nanoparticles for addressing critical environmental challenges. The review explores various green synthesis methods, emphasizing their eco-friendly nature and potential for imparting specific functionalities to the nanoparticles. Subsequently, it explores a wide range of modification strategies, including bimetallic combinations, integration with carbon-based materials, and hybridization with advanced organic polymers, to enhance the catalytic performance of ZnO. The catalytic efficacy of both pristine and modified ZnO nanoparticles in CO<sub>2</sub> conversion is evaluated, along with their in-depth analysis of the underlying mechanisms. Furthermore, the review extensively covers the exploitation of ZnO-based photocatalysts for the decomposition of diverse organic contaminants, like dyes, pharmaceuticals, phenolic compounds, pesticides, herbicides, PAHs, and PFAS. The mechanisms involved in these degradation processes are elucidated, providing insights into the factors influencing photocatalyst efficiency. This review concludes by highlighting the promising prospects of ZnO nanoparticles as sustainable photocatalysts for environmental remediation and the need for further research to optimize their performance and address practical implementation challenges.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100588"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177327","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

Critical barriers to material recovery from e-waste in Brazil

IF 5.4

Journal of hazardous materials advances Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2024.100562

José Francisco de Oliveira Neto , Ana Paula Silva Souza , Maisa Mendonça Silva , Simone Machado Santos , Lourdinha Florencio

{"title":"Critical barriers to material recovery from e-waste in Brazil","authors":"José Francisco de Oliveira Neto , Ana Paula Silva Souza , Maisa Mendonça Silva , Simone Machado Santos , Lourdinha Florencio","doi":"10.1016/j.hazadv.2024.100562","DOIUrl":"10.1016/j.hazadv.2024.100562","url":null,"abstract":"<div><div>As South America's largest generator of waste electrical and electronic equipment (WEEE or e-waste), Brazil has great potential for urban mining from this waste stream. However, only the initial step of e-waste processing, which involves component separation, is performed within the country. The more sophisticated and profitable stage of extracting valuable materials is conducted abroad. This study aims to enhance the understanding of barriers to the complete recovery of materials present in e-waste within Brazil. After identifying critical barriers related to proper e-waste management in the literature, experts selected five barriers that were considered the most appropriate to Brazilian reality. A direct evaluation technique was used to gather opinions from the five experts, quantifying the importance of these barriers concerning the full recovery of valuable materials in e-waste. The DEMATEL method was employed to elucidate the influence among barriers and categorize them into cause-and-effect groups. Results indicate that technology and technical knowledge are prominent barriers to complete material recovery in Brazil. Moreover, this study identified technology as the unique primary and cause barrier, influencing all the others. Therefore, additional efforts should be directed to combat this barrier. These findings can serve as a starting point for initiating reverse logistics processes, aiming at the complete recovery of the materials from e-waste within Brazil.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100562"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176282","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

Electronic waste and environmental diplomacy: How GCC E-waste management interfaces with the Stockholm Convention

IF 5.4

Journal of hazardous materials advances Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2025.100610

Yasar N Kavil , Hassan Alshemmari , Mohammed M Alkasbi , Saeed Saad Alelyani , Mohammed I Orif , Radwan Kh Al-Farawati

{"title":"Electronic waste and environmental diplomacy: How GCC E-waste management interfaces with the Stockholm Convention","authors":"Yasar N Kavil , Hassan Alshemmari , Mohammed M Alkasbi , Saeed Saad Alelyani , Mohammed I Orif , Radwan Kh Al-Farawati","doi":"10.1016/j.hazadv.2025.100610","DOIUrl":"10.1016/j.hazadv.2025.100610","url":null,"abstract":"<div><div>The escalating proliferation of electronic waste (e-waste) poses significant environmental, economic, and health challenges globally, particularly within the Gulf Cooperation Council (GCC) countries. This manuscript explores the dynamics of e-waste management in the GCC, analyzing its alignment with the Stockholm Convention on Persistent Organic Pollutants (POPs). As the GCC experiences rapid technological consumption due to substantial economic growth and urbanization, the management of the resulting e-waste becomes crucial for sustainable development. The manuscript delves into the complexities of disposing electronic products laden with hazardous materials such as brominated flame retardants and polychlorinated biphenyls, which are significant due to their persistence and toxicity in the environment. It highlights the varied approaches of GCC countries towards e-waste management, which range from advanced recycling initiatives to the burgeoning stages of regulatory framework development. Furthermore, the manuscript discusses the integration of e-waste strategies with international environmental diplomacy through the Stockholm Convention, emphasizing the need for enhanced regulatory frameworks and technological advancements. This study underscores the critical need for GCC nations to foster international cooperation, standardize e-waste management practices, and invest in technology to address the environmental impacts effectively, thereby safeguarding public health and promoting ecological sustainability.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100610"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176351","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

Public health risk assessment and possible contamination with heavy metals in Saint Martin's Island, Bay of Bengal

IF 5.4

Journal of hazardous materials advances Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2024.100568

Subrina Sehrin , Md. Azharul Islam Palash , Md. Sagir Ahmed , Shamshad B. Quraishi , Mohammad Abdul Baki , Md. Nurul Amin , Aleya Begum

{"title":"Public health risk assessment and possible contamination with heavy metals in Saint Martin's Island, Bay of Bengal","authors":"Subrina Sehrin , Md. Azharul Islam Palash , Md. Sagir Ahmed , Shamshad B. Quraishi , Mohammad Abdul Baki , Md. Nurul Amin , Aleya Begum","doi":"10.1016/j.hazadv.2024.100568","DOIUrl":"10.1016/j.hazadv.2024.100568","url":null,"abstract":"<div><div>The study examined heavy metal contamination in sediment, water, fish, and their parasites from Saint Martin's Island, Bay of Bengal, with an emphasis on bioaccumulation and associated human health hazards. We utilized various critical pollution indicators to assess ecological quality. Heavy metals (Pb, Fe, Cu, Co, Mn, Ni, Zn, Cr, and Cd) were analyzed in samples collected from five sites around the Island using atomic absorption spectrometry (AAS). Results revealed that the heavy metal concentrations in the water with the lowest mean values were Pb, Fe, Mn, Ni, Cu, and Co, with the mean Pb content exceeding the permissible levels. Copper and iron had a substantial positive correlation (<em>r</em>= 0.910, <em>p</em>< 0.05). The concentrations in sediment were Fe > Zn > Cr > Pb > Cd, exhibiting elevated levels of Pb and Cr. Correlations were identified for Zn-Cr (<em>r</em>= 0.935), Fe-Pb (<em>r</em>= 0.938), and Cr-Cd (<em>r</em>= 0.935) at <em>p</em> < 0.05, and for Zn-Cd (<em>r</em>= 1.000, <em>p</em> < 0.01). The concentrations of heavy metals in fish and parasite muscle were observed Fe>Pb>Zn>Cr>Cd, and Fe>Zn>Pb>Cr>Cd, respectively, with Pb and Cr in fish muscle beyond regulatory limits. Health risk assessments revealed possible non-carcinogenic hazards from Pb, Fe, and Cr, as well as carcinogenic risks associated with Cr and Cd. The maximum bioaccumulation among the observed fishes was noted in <em>Terapon jerboa</em>. The nematode parasite <em>Philometra cephalopholidis</em> demonstrates a higher bioaccumulation tendency for Fe and Cd than fish. The research found that nematode infection is a reliable biomarker for heavy metal pollution.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100568"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177295","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

Aquatic microbiomes under stress: The role of gut microbiota in detoxification and adaptation to environmental exposures

IF 5.4

Journal of hazardous materials advances Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2025.100612

Ming She See , Xin Li Ching , Shing Ching Khoo , Shahidee Zainal Abidin , Christian Sonne , Nyuk Ling Ma

{"title":"Aquatic microbiomes under stress: The role of gut microbiota in detoxification and adaptation to environmental exposures","authors":"Ming She See , Xin Li Ching , Shing Ching Khoo , Shahidee Zainal Abidin , Christian Sonne , Nyuk Ling Ma","doi":"10.1016/j.hazadv.2025.100612","DOIUrl":"10.1016/j.hazadv.2025.100612","url":null,"abstract":"<div><div>Anthropogenic pollution has become a major factor causing environmental changes and the release of harmful pollutants into aquatic ecosystems. The acceleration of global warming and the accumulation of pollutants in the marine environment are of great concern for the aquaculture industry and marine conservation. This review summarizes metagenomic studies examining how aquatic organisms respond to the environmental exposome. It explores the anthropogenic impacts on gut health in these organisms and investigates the interplay between gut microbiota and the environmental exposome. Gut microbiota has a symbiotic relationship with their hosts, contributing to digestion, nutrient absorption, immune function, and disease resistance. Marine gut microbiota predominantly includes Proteobacteria, Firmicutes, Bacteroidetes, Actinobacteria, Verrucomicrobia, and Cyanobacteria, with relative abundances influenced by host diet, genetics, antibiotic treatments, and other environmental factors. Imbalance in gut microbiota composition and the presence of microbes producing toxic metabolites can disrupt immunomodulation in gut-associated lymphoid tissue, potentially leading to inflammation. This inflammation can impact the gut-brain axis, raising concerns about mental health and neurological disorders in organisms. The involvement of gut microbiota in xenobiotic modulation highlights their role in detoxification, which can enhance adaptability to environmental exposures. This review provides critical insights into how the gut microbiota of marine organisms is influenced by environmental exposomes, such as pollutants, and highlights its potential role in detoxification and disease resistance. This provides a valuable prospect for ecological conservation strategies to introduce beneficial bacteria to wild marine organisms to enhance their fitness and adaptability.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100612"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177649","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

Assessment of secondary microplastics trapped in mangrove ecosystem of a highly populated tropical megacity, India

IF 5.4

Journal of hazardous materials advances Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2024.100587

Selvam Kesavan , K.A. Martin Xavier , Midhun M. Nair , Udai Ram Gurjar , Satya Prakash Sukla , Ashok Kumar Jaiswar , Shashi Bhusan , S Abdul Azeez , Geethanjali Deshmukhe

{"title":"Assessment of secondary microplastics trapped in mangrove ecosystem of a highly populated tropical megacity, India","authors":"Selvam Kesavan , K.A. Martin Xavier , Midhun M. Nair , Udai Ram Gurjar , Satya Prakash Sukla , Ashok Kumar Jaiswar , Shashi Bhusan , S Abdul Azeez , Geethanjali Deshmukhe","doi":"10.1016/j.hazadv.2024.100587","DOIUrl":"10.1016/j.hazadv.2024.100587","url":null,"abstract":"<div><div>This study quantified microplastics (MPs) in six zones of the Mumbai mangrove ecosystem through random sampling at 30 sites using the density separation method for extraction and analysis. A total of 2,035 particles were identified based on their shape, color, and size using a stereomicroscope. The results revealed a high abundance of MPs in mangrove sediments, averaging 6,730.2 ± 2,063.9 particles/kg dry weight. The highest average was recorded in the Versova region (7,885.7 particles/kg d.w.), while the lowest was in Sewri (5,785.7 particles/kg d.w.). Fibers (56.1 %), particles < 100 µm (38.5 %), and translucent/transparent items (30.8 %) were the predominant types. Micro-Fourier transform infrared spectroscopy analysis indicated that the most common plastic polymer was polyethylene (36.91 %), followed by polyester (21.33 %) and polyamide (13.47 %). This study provides critical estimates of MPs abundance in Mumbai's mangrove sediments, highlighting the urgent need for management plans and policies to address microplastic production and release into coastal waters, thereby protecting marine organisms.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100587"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143175906","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

Effect modification of heatwaves on the association of long-term ozone exposure and cardiovascular disease among older adults in China: A national representative cross-sectional study

IF 5.4

Journal of hazardous materials advances Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2024.100585

Yuling Li , Xinran Shen , Chen Chen , Panliang Zhong , Binbin Su , Xiaoying Zheng

{"title":"Effect modification of heatwaves on the association of long-term ozone exposure and cardiovascular disease among older adults in China: A national representative cross-sectional study","authors":"Yuling Li , Xinran Shen , Chen Chen , Panliang Zhong , Binbin Su , Xiaoying Zheng","doi":"10.1016/j.hazadv.2024.100585","DOIUrl":"10.1016/j.hazadv.2024.100585","url":null,"abstract":"<div><div>Ozone and heatwaves may elevate the risk of cardiovascular disease (CVD), yet the combined effect of long-term exposure to ozone and heatwaves on CVD risk remains ambiguous, especially in older populations that are vulnerable to environmental health risks. Utilizing data from the Fourth Urban and Rural Elderly Population (UREP) study conducted in 2015, we estimated individual ozone exposure levels and maximum temperatures for the warm season of 2014 through a bilinear interpolation method. We established twelve definitions of heatwaves were established by integrating four high-temperature thresholds and three durations. Logistic regression models were employed to investigate the effects of ozone and heatwaves on CVD in older adults, along with stratified analyses examining the effect modification by heatwaves on the ozone-CVD association. Our analysis revealed a significant association between increased ozone exposure and heightened CVD risk, with odds ratios (OR) of 1.014 (95% CI:1.013, 1.014). Exposure to heatwaves also correlated with the increased risk of CVD, varying by intensity and duration of the heatwaves, with ORs ranging from 0.986 (95% CI: 0.980, 0.992) to 1.078 (95% CI:1.063, 1.094). Notably, heatwaves intensified the adverse effects of ozone exposure on cardiovascular health, demonstrating considerable heterogeneity in this effect modification by heatwaves among different population subgroups. This study underscores the critical interaction between ozone and heatwaves in elevating cardiovascular disease risk among older adults. Our findings call for the urgent need for integrated strategies to mitigate ozone emissions and manage climate extremes, particularly aimed at protecting vulnerable aging populations.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100585"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143175912","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

Biodegradable sponges made from chitin-cellulose nanofibers for sustainable removal of microplastics from aquatic environment

IF 5.4

Journal of hazardous materials advances Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2024.100564

Mohammad Hossein Sayadi , Mohsen Nowrouzi

{"title":"Biodegradable sponges made from chitin-cellulose nanofibers for sustainable removal of microplastics from aquatic environment","authors":"Mohammad Hossein Sayadi , Mohsen Nowrouzi","doi":"10.1016/j.hazadv.2024.100564","DOIUrl":"10.1016/j.hazadv.2024.100564","url":null,"abstract":"<div><div>Microplastic (MP) contamination in aquatic ecosystems is a global concern, highlighting the urgent need for innovative remediation solutions. This study introduces a biodegradable chitin-based adsorbent with exceptional compressive resilience under both dry and wet conditions for the removal of MPs from aqueous environments. Comprehensive characterization techniques, including Fourier-transform infrared (FT-IR) spectroscopy, field emission scanning electron microscopy (FESEM), adsorption capacity, kinetic, isotherm, thermodynamic, and reusability tests, were employed to evaluate the properties of this environmentally friendly adsorbent. The adsorbents exhibited superior mechanical properties, with compressive strengths ranging from 0.61 to 1.3 MPa in dry conditions, and elasticity retention up to 97 % after multiple compression cycles. Characterized by high water absorption capacity (up to 600 %) and remarkable pore interconnectivity, the sponges efficiently adsorbed functionalized MPs (∼1 µm) in a pH range of 6–8, achieving maximum adsorption efficiencies of 93.07 % for polystyrene (PS), 75.54 % for carboxylate-modified polystyrene (PS-COOH), and 90.17 % for polyamine-modified polystyrene (PS-NH<sub>2</sub>). Thermodynamic studies confirmed the endothermic and spontaneous nature of the adsorption process, with Δ<em>G</em>° values reaching −13.48 kJ mol<sup>−1</sup>. The sponges maintained 79–88 % efficiency after four regeneration cycles, ensuring cost-effectiveness. Toxicity assessments using <em>Chromochloris zofingiensis</em> demonstrated biocompatibility, while biodegradation experiments indicated up to 92 % mass loss within 28 days, underscoring their environmental sustainability. This research presents a reusable, biocompatible adsorbent for the efficient removal of harmful MPs from water, addressing aquatic pollution and providing a foundation for future investigations.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100564"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176284","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