Journal of hazardous materials advances最新文献

{"title":"Valorization of algal biomass to synthesize visible-light driven gC3N4-biochar composite for dye degradation: Tuning of optical-electronic properties and persulfate-photocatalytic mechanistic insights","authors":"Aqsa Shafique ,&nbsp;Tahir Fazal ,&nbsp;Hafiz Muhammad Uzair Ayub ,&nbsp;Qumber Abbas ,&nbsp;Fawad Ashraf","doi":"10.1016/j.hazadv.2025.100683","DOIUrl":"10.1016/j.hazadv.2025.100683","url":null,"abstract":"<div><div>Photocatalysis, as an advanced oxidation process, is considered a green, simple, effective, and sustainable strategy to degrade organic pollutants of wastewater, i.e. wastewater from textile industries, which poses significant threats to the aquatic and public health. However, the implementation of photocatalyst, i.e. graphitic carbon nitride (gC₃N₄), to treat dye-laden wastewater has proven to be ineffective, primarily owing to its restricted absorption of visible-light, rapid charge recombination, low absorption capacity, and inactive degradation efficacy. To improve these obstacle, gC₃N₄ (gCN) was loaded on algal-biochar (BC) to enhance its optical properties and energy bandgap by synthesizing gCN@BC₃ and then integrated it with peroxydisulfate (PS) to improve the reaction kinetics for dye degradation_. The synthesized gCN@BC₃ photocatalyst demonstrated better optical-electronic properties including light absorbance in visible region, slow charge recombination, and reduced energy bandgap (∼2.62 eV), as they improved the dye (methylene blue) degradation kinetics (degradation rate (min^-1)) and overall process efficacy. Upon the integration of PS with gCN@BC₃ photocatalyst, the process efficacy and degradation kinetics were significantly improved up to 99.94 % and 0.041 min^-1 as compared to the control (96.82 % and 0.029 min^-1) system without PS. Photogenerated radicals, including superoxide, hydroxyl, and sulfate species, play a key role in the degradation of organic dyes by enhancing process efficacy and kinetics. The reusability analyses demonstrated that the optimized gCN@BC₃ composite retains its stability and effectiveness over five successive cycles. The gCN@BC₃ photocatalyst exhibited a significantly higher adsorption efficiency of 70.92 %, surpassing that of algal-BC (62.31 %) and gCN (27.11 %). The adsorption process, as described by the well-fitted Pseudo-Second-Order and Freundlich models, endorses a favorable chemical interaction with a multilayer adsorption mechanism. Hence, it is suggested that the integration of PS with visible-light-driven gCN@BC₃ presents a rapid, efficient, and stable strategy to significantly boost the process kinetics and degradation efficacy of organic pollutants.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100683"},"PeriodicalIF":5.4,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143654514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The environmentally responsible disposal of slag originating from refuse-derived fuel produced via plasma gasification in MOC composites","authors":"Ondřej Jankovský ,&nbsp;Adéla Kubištová ,&nbsp;Anna-Marie Lauermannová ,&nbsp;Martina Záleská ,&nbsp;Adam Pivák ,&nbsp;Milena Pavlíková ,&nbsp;Zbyšek Pavlík","doi":"10.1016/j.hazadv.2025.100687","DOIUrl":"10.1016/j.hazadv.2025.100687","url":null,"abstract":"<div><div>This paper presents a new approach in the research into new construction materials with a low CO₂ footprint, using magnesium oxychloride cement (MOC) as a matrix and plasma gasification slag from refuse-derived fuel (SRDF) combustion as a filler. As a first step of the experiment, SRDF was analyzed to determine its chemical and phase composition, particle size, microstructural and hygric properties, and heavy metals (HMs) content. After that, a series of experiments were conducted in which various types of MOC-based composites were synthesized and analyzed. Reference MOC sample was prepared with silica sand as a filler and in the samples containing SRDF, silica sand was replaced by SRDF in the amount of 50, 100, and 150 wt%. The prepared samples' microstructure, chemical and phase composition, mechanical properties, structural parameters, and water resistance were analyzed. For these purposes, XRD, XRF, OM, SEM, EDS, AAS, ICP-OES, and standardized tests for micro- and macrostructural, mechanical, and hygric parameters were used. The obtained results showed the positive influence of the addition of SRDF on the water resistance of the MOC-based composites manifested in reduced water uptake and absorption and an increase in the softening coefficient after immersion in water. Therefore, using SRDF as the sole filler, especially in significant quantities, positively impacted water resistance, effectively addressing the principal deficiency inherent in MOC-based materials. Moreover, the hazardous HMs present in SRDF were effectively immobilized within the structure of the synthesized composites. The replacement of sand with SRDF thus demonstrated the potential to realize both environmental and economic benefits in the domain of construction material production.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100687"},"PeriodicalIF":5.4,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143654542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microplastic distribution and potential ecological risk index in a South American sparsely urbanized river basin: Focus on abiotic matrices and the native fish Jenynsia lineata","authors":"Yadira Ansoar-Rodríguez ,&nbsp;Lidwina Bertrand ,&nbsp;Carolina Victoria Colombo ,&nbsp;Guido Noe Rimondino ,&nbsp;Natalia Rivetti ,&nbsp;María de los Angeles Bistoni ,&nbsp;María Valeria Amé","doi":"10.1016/j.hazadv.2025.100685","DOIUrl":"10.1016/j.hazadv.2025.100685","url":null,"abstract":"<div><div>This study represents the first comprehensive assessment of microplastics (MPs) in water, sediment, and the native South American fish species Jenynsia lineata within the Suquía River basin, Argentina, across varying levels of anthropization. MPs were detected in 100 % of water and sediment samples and at least 80 % of fish, with no significant concentration differences between sites. Notably, MPs in fish (660.3 ± 50.5 µm) were significantly smaller than those in water (804.1 ± 59.6 µm) and sediment (955.9 ± 94.8 µm). Fibers comprised 65 % of MPs in abiotic matrices and 96 % in fish, with blue particles predominating (∼40 % in water and sediment; 80 % in fish). The most abundant polymers were cellulose and polyethylene terephthalate (PET). Our findings confirm that MP interactions with environmental elements, including metals, are influenced by surface modifications, enhancing their role as contaminant and pathogen vectors. Titanium (Ti) and silicon (Si) in plastic particles suggest intrinsic sources, while iron (Fe) and aluminum (Al) are likely environmentally derived. MP bioavailability (PLI) increased from less urbanized upper catchments to highly urbanized middle catchments. A significant polymer risk (PHI ≥1000) was linked to epoxy resin (ER) and polyacrylonitrile (PAN) in water and PAN in fish. Water showed the highest potential ecological risk index (PERI). Understanding MP dynamics in freshwater systems is crucial for assessing their broader ecological impacts due to the interconnectedness of aquatic environments. Further research is needed to clarify MP ingestion drivers, toxicological effects, and their role in contaminant transfer within these ecosystems. Such insights are crucial for developing effective strategies to mitigate plastic pollution in both freshwater and marine environments.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100685"},"PeriodicalIF":5.4,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143654513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A comprehensive review of RO membrane fouling: Mechanisms, categories, cleaning methods and pretreatment technologies","authors":"Yousef A. Tayeh ,&nbsp;Motasem Y.D. Alazaiza ,&nbsp;Tharaa M. Alzghoul ,&nbsp;Mohammed JK Bashir","doi":"10.1016/j.hazadv.2025.100684","DOIUrl":"10.1016/j.hazadv.2025.100684","url":null,"abstract":"<div><div>As the global water crisis intensifies, reverse osmosis (RO) membranes play a pivotal role in desalination and industrial water treatment. However, membrane fouling significantly hampers their effectiveness, reducing water quality and production rates while increasing operational costs and maintenance demands. This review addresses the critical gaps in understanding the mechanisms of fouling, categorizing it into four distinct types: inorganic scaling, organic fouling, biofouling, and colloidal fouling, each presenting unique challenges to membrane performance. We delve into both external and internal fouling mechanisms, highlighting how contaminants obstruct membranes through different pathways. Additionally, we provide an in-depth evaluation of existing cleaning methodologies, distinguishing between conventional methods and emerging non-conventional techniques such as osmotic backwashing and ultrasonic cleaning. While physical cleaning methods effectively address reversible fouling, chemical treatments remain essential for irreversible fouling, despite their potential risks to membrane integrity. Furthermore, we explore innovative pretreatment technologies that show promise in mitigating fouling and extending membrane lifespan. By synthesizing current knowledge and pinpointing specific areas for future research—particularly in emerging technologies—this review aims to enhance the operational efficiency of RO membranes and contribute to sustainable solutions for the escalating global water crisis.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100684"},"PeriodicalIF":5.4,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biochar as a carrier for plant growth-promoting bacteria in phytoremediation of pesticides","authors":"Hesam Kamyab ,&nbsp;Shreeshivadasan Chelliapan ,&nbsp;Elham Khalili ,&nbsp;Shahabaldin Rezania ,&nbsp;Balamuralikrishnan Balasubramanian ,&nbsp;Mohammad Mahdi Taheri ,&nbsp;Daniel Simancas-Racines ,&nbsp;Saravanan Rajendran ,&nbsp;Mohammad Yusuf","doi":"10.1016/j.hazadv.2025.100673","DOIUrl":"10.1016/j.hazadv.2025.100673","url":null,"abstract":"<div><div>This review examines the role of biochar as a carrier for plant growth-promoting bacteria (PGPB) in the phytoremediation process of pesticides. It begins by exploring the properties and performance of biochar, including its production processes and physical and chemical characteristics. The review then discusses the roles and mechanisms of PGPB, such as nitrogen fixation, phosphate solubilization, and phytohormone production, emphasizing how these bacteria can enhance plant growth and tolerance to environmental stresses while aiding in pesticide degradation. The suitability of biochar as a carrier for PGPB is highlighted due to its porous structure, surface chemistry, and ability to create microbial habitats. The interactions between biochar, PGPB, and plants that can enhance phytoremediation efficiency are examined. The review additionally identifies the related challenges and limitations, suggesting areas for further research to develop practical applications. This review aims to provide a comprehensive overview of the potential of biochar as a carrier for PGPB in improving phytoremediation outcomes, explicitly addressing the lack of prior reviews on this topic and highlighting broader implications for sustainable remediation.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100673"},"PeriodicalIF":5.4,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced solar-assisted degradation of Sunset Yellow dye using plant-mediated Ag-TiO2/Na-BNT nanocomposite: Synthesis, characterization, and performance optimization","authors":"Afeez T. Gbajabiamila ,&nbsp;Elias E. Elemike ,&nbsp;Bamidele H. Akpeji ,&nbsp;Hamzah A. Bawa ,&nbsp;Ismail Hossain ,&nbsp;Charles Pere ,&nbsp;Ozioma J. Anekwe-Nwekeaku","doi":"10.1016/j.hazadv.2025.100682","DOIUrl":"10.1016/j.hazadv.2025.100682","url":null,"abstract":"<div><div>The research develops an innovative wastewater treatment method through silver-titania nanocomposite synthesis using sodium-functionalized bentonite (Ag-TiO₂/Na-BNT). The nanocomposite functions to achieve more effective solar-powered removal of Sunset Yellow dye which appears as a common industrial discharge contaminant. The Ag-TiO₂/Na-BNT nanocomposite was synthesized by hydrothermal methods followed by assessment using conventional analysis methods together with X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), UV–Vis spectroscopy, scanning electron microscopy-energy dispersive X-ray (SEM/EDX) and Fourier Transform Infra-red (FTIR) spectroscopy. These analyses showed Ag/TiO2 nanoparticles were adequately bonded to Na-BNT at uniform distribution thereby guaranteeing effective photocatalytic performance. The degradation capabilities of solar light-assisted nanocomposites were evaluated through Sunset Yellow dye as the target substance in tests. The research findings showed Ag-TiO₂/Na-BNT achieved enhanced degradation efficiency when exposed to solar light. Researchers investigated solar degradation conditions through experimental tests which evaluated various parameter settings including the pH of solutions and dye starting levels and TiO₂ amounts and H₂O₂ addition amounts. The combination of radical initiators increased the photodegradation efficiency of Ag-TiO₂/Na-BNT. Multiple performance-enhancing characteristics including greater degradation performance and improved solar utilization as well as optimized charge carrier separation enabled high performance. The removal of Sunset Yellow reached its peak at 98 % with nanocomposite usage only but surged to 99.9 % with the addition of hydrogen peroxide under conditions using 0.1 g catalyst loading at pH 3.0 and initial concentration of 10 mg/L while employing 0.1 M of 30 % H₂O₂. Researchers studied the multiple aspects of degradation time throughout their study. The Langmuir-Hinshelwood isotherm successfully defined the equilibrium values with R₂ = 0.9851 and the pseudo-first-order kinetic model best delineated the degradation reaction through R₂ = 0.9596. The discovered information reveals crucial information about how reactions proceed along with what factors influence degradation rates.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100682"},"PeriodicalIF":5.4,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143611724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable application of ferrochrome slag as green aggregate material for novel application in concrete - A review","authors":"Yaqoob Al Hindasi ,&nbsp;Nor Hasanah Abdul Shukor Lim ,&nbsp;Natarajan Rajamohan","doi":"10.1016/j.hazadv.2025.100681","DOIUrl":"10.1016/j.hazadv.2025.100681","url":null,"abstract":"<div><div>Effective utilization of industrial waste as precursors and aggregates in concrete makes it more sustainable and eco-friendlier. This also reduces the disposal problems, as it would otherwise create contamination and pollution. Several popular industrial wastes were successfully utilized as concreting materials and the most significant one among them is ferrochrome lag. This ferrochrome slag is the by-product during the manufacturing of ferrochrome alloy that contains chromium content which would be potentially harmful to the environment. On the other hand, ferrochrome slag comprises excellent physical and mechanical compatibilities that could certainly be adopted as a coarse aggregate in concrete. This paper critically reviews the literature that adopted the ferrochrome slag as a green concrete material without compromising the technical properties of the concrete. The addition of ferrochrome slag in concrete produced both favorable and adverse effects on various properties of concrete, like mechanical, durability, and microstructural aspects, which were explored in detail in this paper. Based on the scrupulous review of the literature, significant research areas where additional focus is required were summarized which would provide a greater scope for future researchers.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100681"},"PeriodicalIF":5.4,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143654543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Two-dimensional imide-based covalent organic frameworks for cationic dye adsorption: Synthesis, characterization, isotherm, kinetics, and thermodynamic analysis","authors":"Jamal Rahimi,&nbsp;Mohammad Tajik Ijdani,&nbsp;Hadis Abbasi,&nbsp;Mohammad Mehdi Salehi,&nbsp;Ali Maleki","doi":"10.1016/j.hazadv.2025.100680","DOIUrl":"10.1016/j.hazadv.2025.100680","url":null,"abstract":"<div><div>The present study reports the construction of imide-based covalent organic frameworks (BPM-COFs) from benzene 1,3,5-tricarbohydrazide (BTCH) and pyromellitic dianhydride (PMDA) using one-step approaches, resulting in solvent stability and acidity and alkalinity resistance. Multiple analytical techniques, including FT-IR, XRD, SEM, BET, AFM, and HRTEM, were employed to ascertain the successful synthesis of BPM-COF adsorbent. The BET surface areas of BPM-COF adsorbent measuring were performed at 11 m².g⁻¹. Adsorption capacity at optimal conditions (pH = 8, 0.005 g of adsorbent, 6 min of agitation, 120 mg. l^-1 pollutants concentration) is achieved to 192.54 mg.g^-1 and removal efficiency is 80.22 %. The experimental adsorption data fitted well with Langmuir's nonlinear isotherm model. The adsorption kinetic data were closely related to the Weber-Morris intraparticle diffusion nonlinear model (R² = 1.00). In addition to its excellent recyclability, BPM-COF adsorbent shows a 73.01 % removal rate after three cyclic desorption-adsorption cycles. A decrease in entropy seemed to favour spontaneity and an exothermic adsorption process, which were indicated by Gibbs free energy (<em>ΔG°</em>), enthalpy (<em>ΔH°</em>), and entropy (<em>ΔS°</em>)<em>.</em> The SEM analysis of BPM-COF after RhB adsorption revealed the presence of spherical particles on the surface of BPM-COF nanorods, indicating that RhB was adsorbed on the surface of BPM-COF adsorbents via hydrogen bonds, electrostatic interactions, and van der Waals interactions. Since BPM-COF exhibits excellent performance, is easy to synthesize, and is reusable, it is an ideal material for future studies in small- and large-scale water treatment projects.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100680"},"PeriodicalIF":5.4,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of ecological safety and economic efficiency of biosorption technology for soil protection after hostilities","authors":"Polina Skvortsova ,&nbsp;Iryna Ablieieva ,&nbsp;Anton Boiko ,&nbsp;Yelizaveta Chernysh ,&nbsp;Yevhen Bataltsev ,&nbsp;Kristina Kuzomenska ,&nbsp;Hynek Roubík","doi":"10.1016/j.hazadv.2025.100677","DOIUrl":"10.1016/j.hazadv.2025.100677","url":null,"abstract":"<div><div>The problem of chemical soil pollution after military actions on the territory of Ukraine is becoming quite urgent in terms of ecological risks. The aim of the article was to establish the level of ecological safety of soils after the application of biosorption technology and to substantiate its ecological and economic feasibility. Within the scope of the study, three scenarios were set to evaluate the level of ecological risk under the condition of actual complex contamination of soils with five heavy metals (Zn, Cu, Ni, Pb, and Cd) – Scenario 1 and in the case of biosorption technology application for soil protection – Scenarios 2 and 3. Scenarios 2 and 3 differed in the type of substrate for anaerobic digestion (chicken manure and sewage sludge, respectively) compatible with phosphogypsum to obtain a biocomposite. Innovative approach for ecological risk assessment was improved based on the Bayes’ theorem and developed set of qualitative and quantitative parameters. Based on the theoretical substantiation of the complex formation indicator and the fluorescent properties of digestate organic matter, the efficiency of heavy metal immobilisation in the soil was evaluated, which contributed to the reduction of ecological risk from moderate to low level for both scenarios. The results of the risk assessment based on Bayes’ theorem showed a decrease in the level of risk from high to medium. Ecological and economic efficiency was assessed according to methodology of ecological damage after hostilities. The economically effective technology developed can be recommended for the comprehensive soil restoration scheme due to the obtained results.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100677"},"PeriodicalIF":5.4,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anthropogenic litter pollution in the mangrove blue carbon ecosystem: Unveiling the spatial distribution, composition, source delineation and mitigation measures along the Goa coast, India","authors":"Nandan Das ,&nbsp;Kalyan De ,&nbsp;Amrita Sen ,&nbsp;Bibekananda Maiti","doi":"10.1016/j.hazadv.2025.100679","DOIUrl":"10.1016/j.hazadv.2025.100679","url":null,"abstract":"<div><div>Plastic litter pollution has emerged as a critical environmental issue globally, and coastal habitats are particularly vulnerable to its detrimental effects. The west coast of India, renowned for its rich biodiversity and vibrant ecosystems, is facing escalating challenges due to the increasing prevalence of mismanaged plastic litter. However, the scale of plastic accumulation in the coastal environment in this region remains largely unknown due to limited research. This study aims to comprehensively assess the extent, sources, and impacts of plastic litter in coastal mangroves, an important blue carbon habitat, along the Goa coast, and propose effective mitigation strategies. Our findings reveal alarming levels of plastic litter in the study areas. The mean concentration of trapped litter was estimated at 5.14 ± 0.55 items/m² (ranged 3.3 - 12 items/m²). Overall, plastic was the most significant litter type, contributing to 66 % of the total litter accumulation. Source identification analysis suggests that 89 % of the litter in the mangrove originated from local land-based sources. Common plastic items identified include plastic fragments, single-use plastic items and fishing gear. Four indices—Clean Coast Index (CCI), General Index (GI), Hazardous Items Index (HII), and Clean Environment Index (CEI)—were used to evaluate environmental and health risks of the mangrove habitats. Mangrove pneumatophores and branches were observed to be impaired by entangled plastic. Additionally, trapped plastic may pose a serious risk to mangrove biodiversity, disrupt the ecological balance, and impact human health through the food chain. The study recommends sustainable mitigation strategies, including policy reforms, community engagement, and educational initiatives, to address plastic pollution in important blue-carbon ecosystems like mangroves. By adopting a multidisciplinary approach, present study contributes valuable insights and actionable recommendations to safeguard the coastal ecosystems, preserve biodiversity, and ensure sustainable development in the region.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100679"},"PeriodicalIF":5.4,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143632177","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}