Environmental Advances最新文献

{"title":"Riparian vegetation as a natural barrier: experimental analysis of plastic particle retention in a vegetated reach","authors":"Daniele Martuscelli,&nbsp;Simona Francalanci,&nbsp;Lorenzo Innocenti,&nbsp;Luca Solari","doi":"10.1016/j.envadv.2025.100645","DOIUrl":"10.1016/j.envadv.2025.100645","url":null,"abstract":"<div><div>Plastic pollution is a growing environmental concern, with rivers acting as critical pathways for plastic particles entering marine ecosystems. In river corridors, riparian vegetation has been identified as a potential natural barrier for plastic particles while transported downstream. Knowledge of the trapping dynamics appears fundamental for understanding the role of riparian barriers in mitigating plastic pollution. However, to date the effects of the foliage distributions of riparian flexible plants and of turbulence on the plastic particle retention dynamics have not yet been studied. This work aims to fill these knowledge gaps including also the influence of the particle characteristics (i.e., density, size, and shape) and of the vegetation structure (i.e., number of branches and leaves). Laboratory experiments were performed in steady flow conditions over a fixed dune bed, using just submerged flexible foliated plastic plants. Results show that particle retention is highly influenced by density and shape. Among the tested disk-shaped particles, those with higher density (1.4 g/cm³) exhibited retention rates up to 93 %, largely at the channel bed structures. At equal density (1.04 g/cm³), irregular-shaped particles were retained at nearly twice the rate of disk-shaped ones (20 % vs. 9–10 %), with vertical dispersion influenced by turbulence. Turbulent Kinetic Energy (TKE), expressed as dimensionless TKE/U² values, showed a non-linear relationship with retention: values below ∼0.0015 were associated with enhanced trapping, while higher turbulence reduced retention, likely by promoting resuspension and weakening particle adhesion. Vertical profiles of TKE/U² varied with leaf configuration, suggesting that vegetation structure modulates turbulence intensity along the canopy. These findings provide a quantitative framework to evaluate microplastic trapping efficiency in vegetated riparian zones, offering insights into natural and engineered nature-based solutions for mitigation of plastic pollution in aquatic systems.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"21 ","pages":"Article 100645"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144243013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Estimating monetary loss of forest ecosystem goods following wildfire in a North Indian mountain state, Uttarakhand: Methodological improvement to capture various losses","authors":"G.C.S. Negi ,&nbsp;Pradeep Singh ,&nbsp;Himanshu Bargali ,&nbsp;S.P. Singh","doi":"10.1016/j.envadv.2025.100651","DOIUrl":"10.1016/j.envadv.2025.100651","url":null,"abstract":"<div><div>In the recent decades forest fire (FF) has become a major issue across the globe causing colossal loss to forest wealth and quality of environment. In the north of India, the mountainous state Uttarakhand is one of the worst sufferers of recurrent FF causing enormous loss to the forest ecosystem goods and services (FES). Hitherto, the monetary loss estimation based on the norms of Forest Deptt. considers only timber, resin and tree regeneration, grossly undermining the other important tangible benefits of forest ecosystems making compensation policy ambiguous. We devised simple methodology to estimate the quantities and monetary value of various forest ecosystem goods (FEGs) lost to FF on per ha forest area basis across three major forest types of Uttarakhand. Study involved a total of 5040 sample plots (840 for trees, 1680 for shrubs and 2520 for herbs) across the 42 study sites (burnt forest and adjacent unburnt control forest) considering severity of FF, slope, aspect and altitude of the forests, classified using Moderate Resolution Imaging Spectroradiometer (MODIS), Simple Network Paging Protocol (SNPP) and Visible Infrared Imaging Radiometer Suite (VIIRS) satellite data. Monetary loss value of the FEGs thus estimated (mean= Indian Rupee (INR) 1,30,387 ha⁻¹; range= INR 9,595–3,52,752 ha⁻¹) using the Market Price Method for marketed goods and stakeholder’s Contingent Valuation Method for non-marketed goods was found highest for timber (59 % of the total loss), tree regeneration (15 %), fuelwood (8 %), wild edibles (7 %), leaf litter (4 %), resin (3 %), fodder (2 %) and MAPs (1 %). Moderate fire accrued significantly (<em>P</em> &lt; 0.049) greater loss than the low severity fire, and the loss was positively related to altitude (<em>P</em> &lt; 0.048), slope (<em>P</em> &lt; 0.039) and aspect (<em>P</em> &lt; 0.041) of the forests. Thus, the monetary loss due to FF we estimated was 65–90 times greater than it was reported so far in Uttarakhand. We recorded some benefits associated with the FF such as better growth of grasses, plant species richness and yield of a few wild edibles. This pioneering study carried out under the restrictions of Covid-19 will redirect the attention of policy makers, forest managers, the media, and society toward the economic and ecological consequences of FF, and calls for detailed studies to better understand the loss of FES to FF.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"21 ","pages":"Article 100651"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144481648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of a tool based on untargeted metabolomics for the evaluation of the dissipation time of a complex biocontrol product in soil","authors":"Anouar Mejait ,&nbsp;Van Du Thuong Tran ,&nbsp;Hikmat Ghosson ,&nbsp;Florence Mehl ,&nbsp;Marco Pagni ,&nbsp;Delphine Raviglione ,&nbsp;Cédric Bertrand ,&nbsp;Marie-Virginie Salvia","doi":"10.1016/j.envadv.2025.100665","DOIUrl":"10.1016/j.envadv.2025.100665","url":null,"abstract":"<div><div>Biopesticides are complex substances derived from natural sources. They are promoted as prospective alternatives to synthetic pesticides because they are considered to be less harmful to the environment and human health compared to chemical pesticides. However, it is still unknown how long biopesticides and their residues remain in the environment. Also, no methodologies are available to determine the fate of these biopesticides (complex mixtures). It is why, we proposed a new parameter, the dissipation time, that corresponds to the degradation of the biopesticide ingredients, <em>i.e.</em> the active substances and the co-formulants. It required a huge data processing.</div><div>These new developments are based on the EMF (Environmental Metabolic Footprinting), an approach recently set up in the CRIOBE Research Unit, where the meta-metabolome (xenometabolome + microbial metabolites) is investigated. In this study, the meta-metabolome data were handled in order to extract the biopesticide component metabolites from this complex dataset. Dissipation modelling was then performed on each biopesticide feature in order to predict the bio-solution dissipation time. In order to develop this concept, the fate of a bioherbicide, Beloukha (a plant extract containing formulating agents), in soil was investigated over a kinetics of 57 days. Using these models, different definition can be used for the dissipation time; we found that 94.9 % of metabolites have half-lives below 19 days and 94.9 % of metabolites have time degradation of 99% of their initial quantity below 125 days. This new approach is really useful where biopesticides are increasingly used and where regulatory methodologies are lacking.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"21 ","pages":"Article 100665"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144866025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Road-traffic emissions of ultrafine particles and elemental black carbon in six Northern European cities","authors":"Simonas Kecorius ,&nbsp;Leizel Madueño ,&nbsp;Kristina Plauškaitė ,&nbsp;Steigvilė Byčenkienė ,&nbsp;Mario Lovrić ,&nbsp;Valentino Petrić ,&nbsp;Manuel Carranza-García ,&nbsp;Manuel J. Jiménez-Navarro ,&nbsp;María del Mar Martínez-Ballesteros ,&nbsp;Gaudentas Kecorius","doi":"10.1016/j.envadv.2025.100661","DOIUrl":"10.1016/j.envadv.2025.100661","url":null,"abstract":"<div><div>Urban air pollution from vehicular emissions remains a pressing public health concern, particularly in Eastern Europe, where data gaps hinder effective mitigation. This study, conducted in the summer of 2024, presents the first detailed analysis of ultrafine particle (UFP) and equivalent black carbon (eBC) emissions from road traffic across Lithuania’s six major cities: Vilnius, Kaunas, Klaipėda, Šiauliai, Panevėžys, and Alytus. We used a custom mobile laboratory to capture real-world emissions, revealing stark spatial disparities. Panevėžys and Vilnius topped eBC levels (10400 ng/m³ and 10200 ng/m³, respectively), driven by aging vehicle fleets and a diesel prevalence of 70 % in Panevėžys, which also recorded the highest UFP concentration (97800 particles/cm³). Emission factors, calculated using an adapted Operational Street Pollution Model (OSPM), identified Vilnius’ light-duty vehicles as leading in particle number emissions (8.90 × 10¹⁴ particles/(km·veh)), likely due to the prevalence of gasoline direct injection engines. At the same time, Panevėžys dominated eBC emissions (150 mg/(km·veh). Heavy-duty vehicles, including buses and trucks, exhibited emission factors up to five times higher than those of their light-duty counterparts, thereby amplifying their impact in urban areas. These findings illuminate emission dynamics in an understudied region, providing policymakers with precise and actionable insights for targeted interventions, such as fleet upgrades or the establishment of low-emission zones. By addressing a critical knowledge gap, this study empowers the scientific community and public health advocates to devise strategies that combat vehicle-related pollution, reduce exposure to harmful pollutants, and foster healthier urban environments across Eastern Europe and beyond.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"21 ","pages":"Article 100661"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144685751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cumulative lead exposure and cognitive performance among the elderly in Johannesburg, South Africa","authors":"Tahira Kootbodien ,&nbsp;Nisha Naicker ,&nbsp;Renee Street ,&nbsp;Angela Mathee","doi":"10.1016/j.envadv.2025.100652","DOIUrl":"10.1016/j.envadv.2025.100652","url":null,"abstract":"<div><h3>Background</h3><div>Lead (Pb) is a known neurotoxin, but evidence linking low chronic exposure to cognitive performance, particularly in low- and middle-income countries, remains limited.</div></div><div><h3>Objectives</h3><div>This study examined cumulative bone lead exposure and cognitive performance in older adults living in care facilities located near mines and mine tailings in Gauteng Province, South Africa.</div></div><div><h3>Methods</h3><div>We included 139 participants aged 60 to 80 years from state-owned elderly assisted living facilities in City of Johannesburg Municipality, Gauteng. Cumulative lead exposure was measured in the tibia using K-X-ray fluorescence (KXRF). Cognitive performance was assessed using the Early Dementia Questionnaire (EDQ) and the Cambridge Neuropsychological Test Automated Battery (CANTAB), focusing on memory, executive function, attention and psychomotor speed. We examined associations between cumulative bone lead levels and cognitive outcomes using multiple regression models, including quadratic terms to test for nonlinearity. Models were adjusted for age, sex, education, and smoking status.</div></div><div><h3>Results</h3><div>Participants had a mean age of 69.9 years (54 % male); 30 % reported occupational lead exposure or had been engaged in lead-related activities. Mean bone lead levels were 8.1 µg/g (SD 6.4), and 55 % of participants met criteria for mild cognitive impairment (EDQ ≥ 8). Higher cumulative bone lead levels were associated with poorer cognitive performance: each unit increase in bone lead was associated with a 10 % higher rate in reaction time (RTI) (adjusted IRR = 1.10; 95 % CI: 1.03–1.16). A significant bone lead-sex interaction was observed (<em>p</em> = 0.03), with a stronger association in women (IRR = 1.11, 95 % CI: 1.03–1.19) than in men (IRR = 1.05, 95 % CI: 1.00–1.10), suggesting potential sex-specific effects. A nonlinear association was observed between bone lead and spatial working memory (SWM) errors (β = 0.022, 95 % CI 0.013-0.032), with task errors increasing disproportionately at higher lead levels, indicating worse cognitive performance of memory-related tasks with increasing exposure.</div></div><div><h3>Conclusion</h3><div>This exploratory study suggests low-level cumulative Pb exposure may be associated with poorer cognitive function in the elderly, particularly affecting executive function and impulse control. Larger studies are needed to confirm these associations.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"21 ","pages":"Article 100652"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144557414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soil physicochemical properties and soil fertility indicators of two cropping systems under semiarid climate conditions","authors":"Rania Lallaouna ,&nbsp;Nawal Ababsa ,&nbsp;Haroun Chenchouni","doi":"10.1016/j.envadv.2025.100663","DOIUrl":"10.1016/j.envadv.2025.100663","url":null,"abstract":"<div><div>This study evaluated the effects of two long-term cropping systems barley (<em>Hordeum vulgare</em>) and alfalfa (<em>Medicago sativa</em>) on key soil physicochemical and fertility parameters under semi-arid Mediterranean conditions. Soil samples were collected in spring and autumn and analyzed for temperature, bulk density (BD), moisture content (SM), pH, electrical conductivity (EC), calcium carbonate (CaCO₃), soil organic carbon (SOC), and total phosphorus (TP). Soil fertility was further assessed through the carbon-to-phosphorus (C:P) ratio, SOC stock (SOCS), and total phosphorus stock (TPS). Results showed significant effects of crop type and season on several soil properties. Alfalfa, cultivated for over a decade, led to higher SOC, SOCS, and TPS compared to barley, likely due to its continuous cover and nitrogen-fixing capacity. Crop type significantly influenced soil temperature and BD (<em>p</em> &lt; 0.001), while seasonal effects were most evident for SM, EC, and pH. Irrigation practices, identical across both sites, also contributed to soil moisture dynamics. The study highlights that perennial legume cover, such as alfalfa, can improve soil quality by enhancing organic carbon and nutrient stocks. These findings offer valuable insights for sustainable land management and conservation-oriented agriculture in dryland agroecosystems.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"21 ","pages":"Article 100663"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144852241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development and optimization of the low-cost optical monitor for real-time monitoring of atmospheric black carbon","authors":"Sameeullah ,&nbsp;James Schauer ,&nbsp;Madiha Javed ,&nbsp;Michael Howard Bergin ,&nbsp;Khan Alam ,&nbsp;Muhammad Fahim Khokhar","doi":"10.1016/j.envadv.2025.100653","DOIUrl":"10.1016/j.envadv.2025.100653","url":null,"abstract":"<div><div>Black Carbon (BC) is a major component of atmospheric aerosol produced from incomplete combustion of fossil fuels, biomass, and solid fuel. About 42 % of BC emissions are from open biomass burning with major contributions from Africa and Asia. A low-cost (&lt;1500 US$) monitoring system is designed for large scale monitoring atmospheric BC near the surface for effective mitigation actions. Carbon Scan includes an air sampler with filtration of particulate matter of size 2.5 micron or less, a color sensor that captures image, and a machine learning (ML) model that retrieves BC concentration. Gradient Boosting Regressor (GBR) and Neural Network (NN) were trained and evaluated for the retrieval of atmospheric BC and its fraction from biomass burning. Carbon scan is a significant advancement in atmospheric BC monitoring. It achieves great accuracy, with a low RMSE of 1 µg/m³, Mean Absolute Error (MAE) of 0.40 µg/m³, Mean Absolute Percentage Error (MAPE) of 6.76 %, (SMAPE) of 5.84 % and a high R² of 0.97. The sensor provides an opportunity to monitor real time concentrations of atmospheric BC. Carbon scan is a low power, low cost, that ensures continuous air monitoring in remote areas, while capturing large temporal and spatial variations of BC.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"21 ","pages":"Article 100653"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of personal and residential outdoor fine particulate matter exposure using low-cost sensors in a long-Covid patient population","authors":"Laura Houweling ,&nbsp;Judith C.S. Holtjer ,&nbsp;G.S. Downward ,&nbsp;L.D. Bloemsma ,&nbsp;E.R. Gijsbers ,&nbsp;E.E. de Waard ,&nbsp;A.H. Maitland-Van der Zee ,&nbsp;G. Hoek ,&nbsp;R.C.H. Vermeulen ,&nbsp;P4O2 consortium","doi":"10.1016/j.envadv.2025.100654","DOIUrl":"10.1016/j.envadv.2025.100654","url":null,"abstract":"<div><div>Understanding the relationship between residential outdoor and personal PM_2.5 exposure is essential for accurately characterizing individual exposure, identifying key pollution sources, and developing targeted mitigation strategies. This study examines residential and personal PM_2.5 exposure levels and their interrelation in a long COVID population in the Netherlands. Residential outdoor PM_2.5 exposure was monitored using 73 low-cost continuous sensors deployed over an average of 131 days per participant. In parallel, 264 24-hour personal PM_2.5 measurements were collected using an Ultrasonic Personal Air Sampler (UPAS), with multiple measurements per participant spanning different seasons. Participants completed a detailed exposure questionnaires to document potential sources and behavioral patterns. Overall, personal PM_2.5 exposure levels (mean: 25.4 µg/m³) were higher than residential outdoor levels, with a mean difference of 18.4 µg/m³. When twelve influential personal measurements &gt;50 µg/m³ were excluded, the mean difference decreased to 10.1 µg/m³. The 172 paired 24-hour measurements of personal and residential PM_2.5, revealed a moderate overall correlation (r = 0.27), with a stronger longitudinal within-person correlation (r = 0.39). Key contributors to the observed difference between personal and residential outdoor exposure included tobacco smoke exposure, the presence of a fireplace in the home, and increased ambient temperature. These findings suggest that patients in our study are exposed to PM_2.5 concentrations higher than the WHO air quality guidelines (5 ug/m³) potentially exacerbating already existing health problems. Furthermore, we identified environmental and behavioral factors affecting their exposure patterns providing opportunities to mitigate PM_2.5 exposures by long COVID patients.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"21 ","pages":"Article 100654"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microplastics (10 µm-5 mm) in European Atlantic Coastal Waters","authors":"Natalja Buhhalko ,&nbsp;Gunaalan Kuddithamby ,&nbsp;Alvise Vianello ,&nbsp;Anna Rotander ,&nbsp;Leticia Vidal-Liñán ,&nbsp;Ricardo Beiras ,&nbsp;Mathilde Falcou-Préfol ,&nbsp;Raewyn M. Town ,&nbsp;Ketil Hylland ,&nbsp;Bénédicte Morin ,&nbsp;Jérôme Cachot ,&nbsp;Christelle Clérandeau ,&nbsp;Ronny Blust ,&nbsp;Torkel Gissel Nielsen ,&nbsp;Urmas Lips ,&nbsp;Francesca Garaventa ,&nbsp;Jes Vollertsen ,&nbsp;Francesco Regoli ,&nbsp;Rodrigo Almeda","doi":"10.1016/j.envadv.2025.100644","DOIUrl":"10.1016/j.envadv.2025.100644","url":null,"abstract":"<div><div>Microplastics (MPs) are pervasive pollutants in coastal waters, raising significant ecological concerns. This study assessed the abundance and characteristics of small-sized MPs (down to 10 µm) across European Atlantic coastal sites using harmonized sampling and analytical methods. A filter-pump microplastic sampler, the \"Universal Filtering Object\" (UFO), was employed at all sites, with Manta net (300-µm mesh) sampling conducted at selected locations. Microplastic concentrations ranged from &lt;10 MPs m^-3 to &gt;1600 MPs m^-3, with the Gulf of Finland showing the lowest concentration (5 MPs m^-3) and the Scheldt estuary in Belgium the highest (1603 MPs m^-3). Most MPs (80%) were &lt;300 µm, primarily consisting of polyester, polypropylene, and polyethylene fragments. Manta net sampling consistently underestimated both total microplastic concentrations and microplastics larger than 300 µm compared to UFO sampling. Estuaries and wastewater effluents were identified as pollution hotspots, strongly influencing local MP distributions. The median microplastic concentration found in European Atlantic waters in this study was lower than the global median for coastal waters measured using pump-based sampling devices. Although current MP levels are unlikely to pose an immediate risk to the marine pelagic food web, the projected increase in plastic production, combined with its low degradability and chemical leaching, underscores the urgency of implementing mitigation measures to prevent future environmental impacts.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"21 ","pages":"Article 100644"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144253403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Geological influence on hydrochemical dynamics and fluoride contamination of groundwater from granitoid province in Central India","authors":"Seema Yadav ,&nbsp;Rimjhim Singh ,&nbsp;Pramod Kumar Singh ,&nbsp;Shalini Maurya ,&nbsp;Abhinandan Srivastava ,&nbsp;Ajay Kumar Talwar","doi":"10.1016/j.envadv.2025.100648","DOIUrl":"10.1016/j.envadv.2025.100648","url":null,"abstract":"<div><div>Fluoride (F⁻) in groundwater poses serious health risks worldwide, particularly in semi-arid regions. Understanding contamination levels, hydrogeochemical processes, and evaluating their potential human health risks are crucial for developing effective management strategies. In this study, we investigated the spatial distribution and geochemical mechanisms of F⁻ contamination in Sonbhadra district, Uttar Pradesh (Central India), using petrographic-mineralogical analysis, hydrochemistry, and multivariate statistical techniques. Additionally, we explored the impact of human activities, including land-use changes, on groundwater quality in the region. Groundwater samples from 199 sites were analyzed for major and minor ions, while petrological and mineralogical analyses of rocks were conducted to identify F⁻ bearing mineral phases. Groundwater F⁻ levels varied from 0.1 to 9 mg/L, averaging 1.39 mg/L, with 46% of samples exceeded the WHO guideline value (1.5 mg/L). Hydrochemical data indicated that groundwater quality was primarily influenced by water-rock interactions, silicate weathering, and ion exchange processes, while the impact of anthropogenic activities was relatively minor. The F⁻ levels exhibited a positive relationship with Na⁺ and HCO₃⁻ concentrations, confirming F⁻ release due to silicate mineral weathering. Petrographic and mineralogical analyses indicated that the F⁻ in groundwater primarily originates from weathering-dissolution of flouride containing minerals like fluorite, biotite and apatite as well as amphibole, epidote, and sphene present in the granitoid rocks. The hazard quotient (HQ_Fluoride) values exceeded unity in 21.60% of samples for adults, 57.28% for children, and 62.81% for infants, highlighting that children and infants are at a higher risk of non-carcinogenic health effects compared to adults.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"21 ","pages":"Article 100648"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144491765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}