Environmental Science: Nano最新文献_第4页

Ozone Aging and Protein Corona Adsorption Exacerbate Inflammatory Effects of Carbon Black on Macrophages and Induce Blood-Testis Barrier Dysfunction in Mice

IF 8.131 2区环境科学与生态学

Environmental Science: Nano Pub Date : 2025-01-30 DOI: 10.1039/d4en01166j

Qingchun Wu, Jianzhong Cao, Yang Song

{"title":"Ozone Aging and Protein Corona Adsorption Exacerbate Inflammatory Effects of Carbon Black on Macrophages and Induce Blood-Testis Barrier Dysfunction in Mice","authors":"Qingchun Wu, Jianzhong Cao, Yang Song","doi":"10.1039/d4en01166j","DOIUrl":"https://doi.org/10.1039/d4en01166j","url":null,"abstract":"Carbon black (CB) is a man-made, pure carbon particle, with numerous applications in a variety of commercial and consumer products. Upon inhalation, it may bioaccumulate across various organs, raising serious health concerns. However, the biotransformation processes that CB undergoes can alter its chemical and physical properties, thereby affecting its toxicities. When airborne CB is exposed to UV radiation, it undergoes an aging process. Upon entering physiological environments, biomacromolecules, such as proteins, rapidly adsorb onto CB’s surface, forming a protein corona that mediates cellular interactions. Our study reveals that ozone aging influences CB’s adsorption in mouse plasma. Exposure to both pristine CB and ozone-aged carbon black (CB-O3) triggers inflammatory responses in J774A.1 macrophage cell lines and activates the NOD-, LRR-, and pyrin domain-containing protein 3 (NLRP3) inflammasome. Notably, ozone aging and plasma protein corona adsorption enhance CB uptake by J774A.1 cells, thereby increasing its cytotoxicity. Mechanistically, CB and CB-O3 exposure induce lysosomal damage and dysfunction, leading to cathepsin B release, which in turn activates the NLRP3 inflammasome. Importantly, this activation correlates with a reduction in blood-testis barrier-associated protein expression. In vivo experiments confirm that prolonged exposure to CB and CB-O3 activates the NLRP3 inflammasome within the testes, leading to a significant compromise of the blood-testis barrier integrity in mice.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"74 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143056713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A perspective on the potential impact of microplastics and nanoplastics on the human central nervous system

IF 5.8 2区环境科学与生态学

Environmental Science: Nano Pub Date : 2025-01-29 DOI: 10.1039/D4EN01017E

Kimia Moiniafshari, Alessandra Zanut, Andrea Tapparo, Paolo Pastore, Sara Bogialli and Fazel Abdolahpur Monikh

{"title":"A perspective on the potential impact of microplastics and nanoplastics on the human central nervous system","authors":"Kimia Moiniafshari, Alessandra Zanut, Andrea Tapparo, Paolo Pastore, Sara Bogialli and Fazel Abdolahpur Monikh","doi":"10.1039/D4EN01017E","DOIUrl":"10.1039/D4EN01017E","url":null,"abstract":"Humans are constantly exposed to microplastics and nanoplastics (MNPs). Although significant gaps remain in our understanding of their adverse effects on human health, it is increasingly evident that MNPs can penetrate physiological barriers and accumulate in various locations within the human body. Analytical limitations in tracking and measuring nanoplastics in physiological media may persist for several years before we can accurately detect these particles in the human body and establish a clear link between exposure to them and associated hazards. In addition to the few studies that have emerged recently, our knowledge of chemicals with properties similar to those of MNPs, as well as other types of nanomaterials, suggests that MNPs may cross the blood–brain barrier (BBB) and potentially induce damage to the human central nervous system. Here, we provide an overview of the limited number of studies available on this topic and present a perspective on the potential pathways through which MNPs may penetrate the BBB. We also discuss the main mechanisms by which MNPs could potentially impact the central nervous system (CNS), with a focus on neurodegenerative diseases such as Alzheimer's disease (AD), Parkinson's disease (PD), multiple sclerosis (MS), and amyotrophic lateral sclerosis (ALS). This information could contribute to the development of tailored studies exploring the negative effects of MNPs on the CNS.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":" 3","pages":" 1809-1820"},"PeriodicalIF":5.8,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/en/d4en01017e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Safe and sustainable development of advanced materials: UK National Knowledge Sharing Network Workshops†

IF 5.8 2区环境科学与生态学

Environmental Science: Nano Pub Date : 2025-01-29 DOI: 10.1039/D4EN00555D

Charles A. Clifford, Delphine Bard, Fernando A. Castro, Gareth S. Evans, Mark Gee, Samantha Hall, Stephanie Kitchen, Denis Koltsov, Alex Price, Rachel Smith and Fatima Nasser

{"title":"Safe and sustainable development of advanced materials: UK National Knowledge Sharing Network Workshops†","authors":"Charles A. Clifford, Delphine Bard, Fernando A. Castro, Gareth S. Evans, Mark Gee, Samantha Hall, Stephanie Kitchen, Denis Koltsov, Alex Price, Rachel Smith and Fatima Nasser","doi":"10.1039/D4EN00555D","DOIUrl":"10.1039/D4EN00555D","url":null,"abstract":"The term advanced materials (AM) is used widely to cover a large number of diverse new innovative materials, including nanomaterials, advanced composites, innovative surface coatings, (bio)polymers, porous and particle systems, ceramics, smart and metamaterials and advanced fibres and textiles. With any new materials, there are commercial and performance advantages that need to be balanced with any potential environmental, health and safety issues, for example, around exposure, toxicity, sustainability and waste. Key players in the UK from government bodies, research, measurement and standardisation organisations, academia and industry came together to consider these issues via two online workshops in April 2021 and February 2023. At each event, scene-setting presentations by key experts were followed by discussions addressing salient issues, including, benefits and barriers to AM commercialisation, potential environmental, health and safety issues, and safe(r) by design approaches. The first workshop served as a starting point to share views on the potential societal benefits of AM and perceived obstacles to their wider adoption. The second workshop focused on safety by design, life cycle analysis and challenges faced at different points in the supply chain. In addition to confirming findings from previous studies, these workshops also highlighted specific challenges that are faced by small to medium sized enterprises (SME). These workshops provided a unique opportunity for policy makers, regulators, standardisation bodies, funding bodies and academia to understand the concerns of industry and researchers, who develop and work with AM. This included what they felt would help support them in their aims of developing innovative, commercially successful, safe and sustainable AM.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":" 3","pages":" 1858-1871"},"PeriodicalIF":5.8,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/en/d4en00555d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Intercalated MOF nanocomposites: robust, fluorine-free and waterborne amphiphobic coatings†

IF 5.8 2区环境科学与生态学

Environmental Science: Nano Pub Date : 2025-01-29 DOI: 10.1039/D4EN00762J

Priya Mandal, Vikramjeet Singh, Jianhui Zhang and Manish K. Tiwari

{"title":"Intercalated MOF nanocomposites: robust, fluorine-free and waterborne amphiphobic coatings†","authors":"Priya Mandal, Vikramjeet Singh, Jianhui Zhang and Manish K. Tiwari","doi":"10.1039/D4EN00762J","DOIUrl":"10.1039/D4EN00762J","url":null,"abstract":"Transparent non-wetting surfaces with mechanical robustness are critical for applications such as contamination prevention, (anti-)condensation, anti-icing, anti-biofouling, etc. The surface treatments in these applications often use hazardous per- and polyfluoroalkyl substances (PFAS), which are bio-persistent or have compromised durability due to weak polymer/particle interfacial interactions. Hence, developing new approaches to synthesise non-fluorinated liquid-repellent coatings with attributes such as scalable fabrication, transparency, and mechanical durability is important. Here, we present a water-based spray formulation to fabricate non-fluorinated amphiphobic (repellent to both water and low surface tension liquids) coatings by combining polyurethane and porous metal–organic frameworks (MOFs) followed by post-functionalisation with flexible alkyl silanes. Owing to intercalation of polyurethane chains into MOF pores, akin to robust bicontinuous structures in nature, these coatings show excellent impact robustness, resisting high-speed water jets (∼35 m s−1), and a very low ice adhesion strength of ≤30 kPa across multiple icing/de-icing cycles. These surfaces are also smooth and highly transparent, and exhibit excellent amphiphobicity towards a range of low surface tension liquids from water to alcohols and ketones. The multi-functionality, robustness and potential scalability of our approach make this formulation a good alternative to hazardous PFAS-based coatings or solid particle/polymer nanocomposites.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":" 3","pages":" 1930-1941"},"PeriodicalIF":5.8,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/en/d4en00762j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Out of the lab and into the environment: the evolution of single particle ICP-MS over the past decade

IF 5.8 2区环境科学与生态学

Environmental Science: Nano Pub Date : 2025-01-29 DOI: 10.1039/D4EN00804A

Aaron J. Goodman, Brianna F. Benner and Manuel D. Montaño

{"title":"Out of the lab and into the environment: the evolution of single particle ICP-MS over the past decade","authors":"Aaron J. Goodman, Brianna F. Benner and Manuel D. Montaño","doi":"10.1039/D4EN00804A","DOIUrl":"10.1039/D4EN00804A","url":null,"abstract":"The development and application of engineered nanomaterials has required pushing the boundaries of analytical instrumentation in order to detect, quantify and characterize the properties and behaviors of materials at the nanoscale. One technique, single particle ICP-MS, has stood apart for its ability to characterize and quantify inorganic nanomaterials at low concentrations and in complex environmental and biological media. For the past 20 years, this technique has matured significantly, with an ever-expanding scope of application. Where initially it was capable of analyzing precious metal nanoparticles in relatively pristine solutions, now it can be used to characterize multiple different NP populations of varying elemental and isotopic compositions. The types of materials analyzed now extend beyond traditional metallic NPs, with varied materials such as nanominerals, carbon nanotubes, biological cells, and microplastics. In this perspective, we examine the key developments in the past decade of spICP-MS and aim to provide a vision for what this field may look like 10 years from now. The study of nanoparticles, both natural and engineered, will continue to play a vital role in our understanding of climate change, anthropogenic impact, and biogeochemical cycling of nutrients and contaminants in a rapidly changing environment.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":" 3","pages":" 1789-1800"},"PeriodicalIF":5.8,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143056712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced antibacterial and algae inhibition performance by coral sand-supported nano-Ag composites†

IF 5.8 2区环境科学与生态学

Environmental Science: Nano Pub Date : 2025-01-29 DOI: 10.1039/D4EN01057D

Sufeng Wang, Fengjing Lv, Wen Zhang, Jingshan Li, Mingyang Lin and Zhengyi Tao

{"title":"Enhanced antibacterial and algae inhibition performance by coral sand-supported nano-Ag composites†","authors":"Sufeng Wang, Fengjing Lv, Wen Zhang, Jingshan Li, Mingyang Lin and Zhengyi Tao","doi":"10.1039/D4EN01057D","DOIUrl":"10.1039/D4EN01057D","url":null,"abstract":"Developing efficient, non-toxic (or low toxicity), low-cost, and long-lasting antibacterial and algae-inhibiting materials is an important issue closely related to human health. Coral sand, due to its porous and biologically residual nature, is an environmentally friendly pure natural material, and its application in the field of environment has attracted attention. This study used coral sand as a carrier to immobilize nano silver and obtained the composite material coral sand-Ag (CS-Ag), which could release nano silver in a slow-release manner to achieve the purpose of continuous sterilization and algae inhibition. The research results showed that 44.2% of silver ions could be sustained within one week, demonstrating a silver sustained release effect. There were obvious antibacterial circles around the CS-Ag composite material, with a diameter of 22.5 ± 0.1 mm for Staphylococcus aureus and 24.1 ± 0.1 mm for Escherichia coli. The bactericidal activity of silver-loaded coral sand was affected by environmental temperature and pH value. SEM observations showed that silver-loaded coral sand caused scars or holes on the surface of bacterial cells, which also confirmed its ability to damage bacterial cells. This material also had an inhibitory effect on single-cell algae. In the treatment group with a concentration of 1.0 g L−1, the inhibition efficiency of CS-Ag on the growth of microalgae for 96 h can reach 89.7%. The addition of silver-loaded coral sand also affected the structural morphology of algal cells and the synthesis of chlorophyll a, thereby inhibiting photosynthesis and respiration, respectively. The high concentration of silver-loaded coral sand almost completely inhibited the photosynthesis and respiration of algal cells. Therefore, CS-Ag is expected to achieve the removal of bacteria and algae in intensive aquaculture water and achieve harmless disease control.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":" 3","pages":" 1942-1955"},"PeriodicalIF":5.8,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tailoring nanomaterials towards global One Health: a promising nano-strategy against antibiotic resistance

IF 5.8 2区环境科学与生态学

Environmental Science: Nano Pub Date : 2025-01-25 DOI: 10.1039/D4EN00854E

Feiran Chen, Shuhan Zhang, Xi Wang and Zhenyu Wang

{"title":"Tailoring nanomaterials towards global One Health: a promising nano-strategy against antibiotic resistance","authors":"Feiran Chen, Shuhan Zhang, Xi Wang and Zhenyu Wang","doi":"10.1039/D4EN00854E","DOIUrl":"10.1039/D4EN00854E","url":null,"abstract":"The management of antibiotic resistance gene (ARG) contamination in soil–plant systems is a critical area of research with significant implications for public health and environmental sustainability. Recently, engineered nanomaterials (ENMs) have been developed to enhance plant growth and address the global food crisis. Studies on the effects of nanomaterials mostly indicate an increase in the spread of antibiotic resistance, while emerging findings reveal the potential of ENMs in mitigating ARG pollution. Unlike existing mechanisms such as adsorption, DNA damage, and microbial disinfection involved in ARG removal, ENMs are specifically modified (e.g., with particular chemical compositions or surface charge adjustment) to inhibit the transfer of ARGs and migration of antibiotic-resistant bacteria. The integration of ENMs with advanced technologies (e.g., CRISPR gene editing) holds great promise for remediating antibiotic resistance in soil–plant systems. Here, we provide an overview of ENM–ARG interactions and propose applications of tailored ENMs to inhibit ARG dissemination during the development of nano-enabled agriculture, addressing major challenges and directions for optimizing the efficacy and safety of ENM-based strategies for mitigating ARG contamination in agriculture.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":" 3","pages":" 1801-1808"},"PeriodicalIF":5.8,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143031249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phenotypic profiling reveals polystyrene nanoplastics elicit sublethal and lethal effects on cellular morphology in rainbow trout gill epithelial cells†

IF 5.8 2区环境科学与生态学

Environmental Science: Nano Pub Date : 2025-01-24 DOI: 10.1039/D4EN01149J

Lissett G. Diaz and Rebecca Klaper

{"title":"Phenotypic profiling reveals polystyrene nanoplastics elicit sublethal and lethal effects on cellular morphology in rainbow trout gill epithelial cells†","authors":"Lissett G. Diaz and Rebecca Klaper","doi":"10.1039/D4EN01149J","DOIUrl":"10.1039/D4EN01149J","url":null,"abstract":"Extensive knowledge is available on the impacts of both engineered nanomaterials (ENMs) and microplastics (MPs), yet there remains a critical gap in understanding the impacts of nanoplastics, and the cellular and subcellular effects at sublethal concentrations. This study investigates the impacts of polystyrene nanoplastics (PS NPs) on Oncorhynchus mykiss (rainbow trout) gill epithelial cells, emphasizing the crucial role of surface charge in nano–bio interactions. The current study employs both traditional and non-traditional toxicological techniques presenting an image-based study to examine PS NP–cellular interactions at sublethal and lethal doses. Our findings demonstrated that relative to the uncharged and negatively charged PS NPs, the positively charged PS NPs significantly decreased cell viability at 4 μg mL−1 (EC50: 4.31 μg mL−1). However, at a sublethal concentration of 2 μg mL−1, phenotypic profiling analysis indicates that positively charged PS NPs elicit a significant change to cellular morphology and suggests key interactions with subcellular components. As the impacts measured are novel, further research into the underlying mechanisms will contribute to our understanding of nanoparticle toxicity in vertebrate species guiding both the policy and sustainable design of nanoparticles.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":" 3","pages":" 2021-2033"},"PeriodicalIF":5.8,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/en/d4en01149j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143031250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Facet-dependent growth and dissolution of hematite resulting from autocatalytic interactions with Fe(ii) and oxalic acid†

IF 5.8 2区环境科学与生态学

Environmental Science: Nano Pub Date : 2025-01-24 DOI: 10.1039/D4EN01004C

Sandra D. Taylor, John B. Cliff, Thomas W. Wietsma and Kevin M. Rosso

{"title":"Facet-dependent growth and dissolution of hematite resulting from autocatalytic interactions with Fe(ii) and oxalic acid†","authors":"Sandra D. Taylor, John B. Cliff, Thomas W. Wietsma and Kevin M. Rosso","doi":"10.1039/D4EN01004C","DOIUrl":"10.1039/D4EN01004C","url":null,"abstract":"The ability to simultaneously monitor the flux of iron atoms within the solution and solid phases can provide considerable insight into mechanisms of iron oxide mineral transformations. The autocatalytic interaction between hematite and Fe(II)-oxalate has long been of interest for its environmental and industrial relevance. In this study we take advantage of iron isotopic labelling and mass-sensitive imaging at the single particle scale to determine how changes in solution composition correlate with the morphologic evolution of faceted, micrometer-sized hematite platelets. Net dissolution is confirmed through analyses of aqueous iron chemistry, as well as by quantitative atomic force microscopy. Isotopic mapping techniques show that Fe(II) readily adsorbs to (001) and (012) surfaces in the absence of oxalate, but when oxalate is present selective dissolution of the (001) surface prevails and Fe deposition via recrystallization is not observed. Comparison between particle microtopographies following reaction with Fe(II), oxalate, and Fe(II)-oxalate show substantially different behaviors, consistent with distinct mechanisms of interaction with hematite surfaces. The extensive characterization conducted on the coupled solution/solid dynamics in this system provides new insight for distinguishing crystal growth, dissolution, and recrystallization processes.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":" 3","pages":" 1979-1992"},"PeriodicalIF":5.8,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/en/d4en01004c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143026770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Detection and quantification of nanoparticles in runoff from a highly trafficked urban motorway† 交通繁忙的城市高速公路径流中纳米颗粒的检测和定量

IF 5.8 2区环境科学与生态学

Environmental Science: Nano Pub Date : 2025-01-23 DOI: 10.1039/D4EN00552J

Malak Dia, Pierre-Emmanuel Peyneau, Denis Courtier-Murias and Béatrice Bechet

{"title":"Detection and quantification of nanoparticles in runoff from a highly trafficked urban motorway†","authors":"Malak Dia, Pierre-Emmanuel Peyneau, Denis Courtier-Murias and Béatrice Bechet","doi":"10.1039/D4EN00552J","DOIUrl":"10.1039/D4EN00552J","url":null,"abstract":"Urban rainfall and runoff are major transport vectors for pollutants into the aquatic environment. In this context, road traffic is a significant factor in the contamination of the urban environment in general, and runoff in particular. Some metals, such as Cu, Zn, Fe, and Ti, have been found in the dissolved fraction (<0.45 μm) in such water. The present study focuses on characterizing the number concentration and mass distribution of nanoparticles (NPs) containing Ti, Fe, Zn, and Cu in runoff from a heavily trafficked urban motorway (≈100 000 vehicles per day) in Nantes, Western France. Seven runoff samples were taken between July 2023 and March 2024. A rainfall sample was also taken in the same proximity for comparative purposes, providing knowledge of atmospheric wet deposition levels. Using two sample preparation methods, filtration and ultra-filtration, single particle ICP-MS (sp-ICP-MS) analysis confirmed the existence of the targeted elements in the nanoparticulate fraction. Ti was found to be the most abundant element, followed by Fe, while Zn and Cu were less prevalent, with average number concentrations of 4.83 × 108, 1.68 × 108, 7.78 × 107 and 9.04 × 107 particles per L, respectively. Except for Fe, runoff samples exhibited higher concentrations of Ti, Zn, and Cu nanoparticles compared to the rainfall sample, with a larger average equivalent diameter indicating a likely anthropogenic origin. Comparisons between sample preparation methods indicate that minimizing preparation steps is recommended.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":" 3","pages":" 1993-2007"},"PeriodicalIF":5.8,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0