Science of the Total Environment最新文献

{"title":"Assessing and mapping changes in soil ecosystem services and soil threats in agroecosystems through scenario-based approaches – A systematic review","authors":"Ottone Scammacca ,&nbsp;David Montagne ,&nbsp;Sabina Asins-Velis ,&nbsp;Giulia Bondi ,&nbsp;Luboš Borůvka ,&nbsp;Gabriele Buttafuoco ,&nbsp;Alice Cadero ,&nbsp;Costanza Calzolari ,&nbsp;Isabelle Cousin ,&nbsp;Martina Czuba ,&nbsp;Cecilie Foldal ,&nbsp;Armin Malli ,&nbsp;Agnieszka Klimkowicz-Pawlas ,&nbsp;Liia Kukk ,&nbsp;Erica Lumini ,&nbsp;Eduardo Medina-Roldán ,&nbsp;Kerstin Michel ,&nbsp;María José Molina ,&nbsp;Lilian O'Sullivan ,&nbsp;Sylwia Pindral ,&nbsp;Christian Walter","doi":"10.1016/j.scitotenv.2025.178646","DOIUrl":"10.1016/j.scitotenv.2025.178646","url":null,"abstract":"<div><div>Scenario analysis plays a central role in estimating how global changes affect the relationships linking ecosystem conditions and functioning to human needs. This is particularly true for agroecosystems, which are pivotal to ensure sustainable land planning, ecological management and food security strategies. Soils are key providers of multiple ecosystem services (ES) in agroecosystems but they are very sensitive to global drivers such as changes in climate, land use and cover. How agroecosystems should achieve sustainability, through optimizing soil capacity to supply ES while limiting the occurrence of threats, is a priority of EU policy agendas. Nevertheless, there is currently a lack of a comprehensive framework of scenario-based approaches to assess changes in soil ES (SES) and soil threats (ST). As a part of the project SERENA funded by the European Joint Program on Agricultural Soil Management, this study aims to: i) understand how drivers of global change are commonly studied in the scientific literature; ii) identify how some SES and ST are assessed in scenario-based approaches; iii) provide a preliminary discussion on how soil properties are represented in these approaches. Through a systematic review of 230 published articles related to seven SES and ten ST, this study highlights that not all SES and ST are considered with the same frequency and geographic distribution in scenario-based approaches. Despite a great methodological variability in the assessment and mapping of SES and ST, dominant methodological trends can be identified. SES are mapped more frequently than ST and, specific SES appear more disposed to spatially explicit assessments than others. Due to its novelty and complexity, research on this topic is limited to a small subset of ST or SES and projections of the combined impacts of climate, land use and management changes on multiple ST and SES should be a scientific priority to help policy makers.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"966 ","pages":"Article 178646"},"PeriodicalIF":8.2,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143183097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Asymmetric environmental responses on evapotranspiration in Tibetan Plateau grassland","authors":"Lexin Ma ,&nbsp;Zhi Chen ,&nbsp;Guirui Yu ,&nbsp;Tianxiang Hao ,&nbsp;Meng Yang ,&nbsp;Quanhong Lin ,&nbsp;Linfei Yu","doi":"10.1016/j.scitotenv.2025.178699","DOIUrl":"10.1016/j.scitotenv.2025.178699","url":null,"abstract":"<div><div>Evapotranspiration (ET) from the Tibetan Plateau (TP) grasslands plays a critical role in regulating water storage in the Asian Water Tower. However, the patterns, drivers, and responses of ET to climate change remain largely understudied due to limited observational data. This study integrated eddy covariance and long-term remote sensing data to examine the spatial patterns of ET and its drivers across the TP, comparing these patterns with those in other grassland ecosystems of the Northern Hemisphere. In the eastern TP, ET was primarily influenced by vapor pressure deficit and net radiation, whereas in the western TP, the impact of these two factors on the ET was significantly reduced. The regional differences were attributed to the unique energy-limited conditions in the eastern TP, which were driven by the East Asian monsoon and large-scale atmospheric circulation. In contrast, ET in other grassland ecosystems of the Northern Hemisphere, such as the North American Prairie and the Mongolian Plateau, was mainly controlled by water availability (e.g., precipitation and soil water content), similar to the western TP region. Under future climate warming, ET in the eastern TP is expected to increase significantly compared to other grasslands, particularly in the SSP5-8.5 scenario. This study revealed the distinct mechanisms regulating ET in TP grasslands and emphasized the need for further research on how grassland ET responds to global environmental changes.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"966 ","pages":"Article 178699"},"PeriodicalIF":8.2,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143183101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"A new process-based approach for defining karst aquifer vulnerability to contamination risks under global changes","authors":"Tamara Leins ,&nbsp;Mirjam Scheller ,&nbsp;Kübra Özdemir Çallı ,&nbsp;Nataša Ravbar ,&nbsp;Cyril Mayaud ,&nbsp;Metka Petrič ,&nbsp;Yan Liu ,&nbsp;Andreas Hartmann","doi":"10.1016/j.scitotenv.2025.178561","DOIUrl":"10.1016/j.scitotenv.2025.178561","url":null,"abstract":"<div><div>Karst groundwater resources play a crucial role in global water supply. But due to their intrinsic heterogeneity, karst aquifers are especially vulnerable to contamination and environmental changes. To sustain karst water quality, assessing karst aquifer vulnerability to contamination and revealing the influence of changing environmental conditions on karst vulnerability are essential. This study unveils the impact of climate and land-use changes on karst aquifer vulnerability by proposing a novel process-based approach that uses the relationship between karst transport parameters and karst flow and site characteristics. Karst transport parameters are derived from tracer tests previously conducted within the study area by applying a simple transport model to observed breakthrough curves (BTCs). By coupling this transport model with a karst flow model we can predict the BTCs under projected changing environmental conditions. We apply our approach to the karstic aquifer system of the Unica springs that largely contribute to drinking water supply in Southwestern Slovenia. Our findings indicate that karst aquifer vulnerability can vary depending on the specific hydrogeological setting, prevalent flow conditions, as well as the current and future climate, and land use. More specifically, we find that impacts of climate change on karst aquifer vulnerability exceed the impacts of land-use changes. For our study site, we find that both higher and lower karst vulnerabilities can occur in future projections. While seasonally changing patterns of precipitation and temperature can lead to a decreased vulnerability in the summer months, they can lead to an increased vulnerability in the spring and winter months. Our study demonstrates that the proposed approach can be used as a tool for vulnerability assessments in karst aquifers, especially for revealing the impacts of future changes on karst water resources. We emphasize the need for continuous improvements in this field to ensure a safe management of karst water resources in the future.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"966 ","pages":"Article 178561"},"PeriodicalIF":8.2,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Impact of high-density polyethylene (HDPE) microparticles on soil physical-chemical properties, CO2 emissions, and microbial community in a two-year field trial","authors":"L. Massaccesi ,&nbsp;R. Marabottini ,&nbsp;M. De Feudis ,&nbsp;A. Leccese ,&nbsp;C. Poesio ,&nbsp;S. Marinari ,&nbsp;M.C. Moscatelli ,&nbsp;A. Agnelli","doi":"10.1016/j.scitotenv.2025.178703","DOIUrl":"10.1016/j.scitotenv.2025.178703","url":null,"abstract":"<div><div>Contamination by microplastics (MPs) is a serious problem affecting both aquatic and terrestrial ecosystems, but despite the large number of papers published in recent years, the impact of microplastics (MPs) on soil is still debated. This work aims to evaluate the effects of different amounts (0, 1, 2 % v/v) of high-density polyethylene (HDPE) microparticles (1–0.25 mm in size) on soil properties over time. Specifically, in a field plot experiment lasting about 2 years, treated and control soils were periodically sampled and analysed for their physical (aggregate stability and distribution), chemical (total N, soluble C and N, available P), and soil biochemical (basal respiration, microbial biomass C, enzyme activities, and fatty acid methyl ester - EL-FAME) properties. In addition, CO₂ fluxes from soil to atmosphere were measured throughout the experiment. The physical and chemical parameters of the treated soils did not differ significantly from the control soil, whereas specific changes occurred in the biochemical characteristics during the experiment, particularly in the soil treated with the higher dose of MPs. In the early period (21 to 46 days after the treatment), some changes in the microbial community structure were observed for the soil treated with 2 % MPs, suggesting the occurrence of stress conditions for the microbial biomass, likely due to nutrient limitation. After 166 g from the start of the experiment, the 2 % MPs-treated soil showed, other than a lower CO₂ flux than the control soil, a reduction of basal respiration together with an increase in actinomycetes and total fungi (both saprophytes and AMF). There was also an increase in C-related enzyme activities one year after treatment with MPs. These latter results suggest that the soil microbial community may be adapting to the new conditions and available energy substrates, which may also indicate the onset of HDPE degradation processes.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"966 ","pages":"Article 178703"},"PeriodicalIF":8.2,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143183092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Predicting hospital admissions due to COVID-19 in Denmark using wastewater-based surveillance","authors":"Aina Gudde ,&nbsp;Lene Wulff Krogsgaard ,&nbsp;Guido Benedetti ,&nbsp;Signe Kjærsgaard Schierbech ,&nbsp;Nanna Brokhattingen ,&nbsp;Katarina Petrovic ,&nbsp;Lasse Dam Rasmussen ,&nbsp;Kristina Træholt Franck ,&nbsp;Steen Ethelberg ,&nbsp;Nicolai Balle Larsen ,&nbsp;Lasse Engbo Christiansen","doi":"10.1016/j.scitotenv.2025.178674","DOIUrl":"10.1016/j.scitotenv.2025.178674","url":null,"abstract":"<div><div>Wastewater surveillance has become a fundamental tool to monitor the circulation of SARS-CoV-2 in order to prepare timely public health responses. In this study we integrate available clinical data on hospital admissions with wastewater surveillance data and investigate if predictions of the number of hospital admissions due to COVID-19 in Danish hospitals are improved by including wastewater concentrations of SARS-CoV-2. We implement state space models to describe the relationship between the number of hospital admissions due to COVID-19, available with a three-week classification delay, and more recent numbers of total hospital admissions with COVID-19. Including wastewater concentrations of SARS-CoV-2, we consider five-week predictions of the number of hospital admissions due to COVID-19. As a result of the three-week classification delay, the predictions translate into two hindcasts, one nowcast and two forecasts. The predicted values for all time frames follow the observed numbers well. We find that log likelihood values are higher when including wastewater concentrations (across all horizons) and that lagging the wastewater observations to investigate whether changes in wastewater concentrations occur before changes in hospital admissions does not result in further improvements. Our study shows that including wastewater concentrations improve estimates of the number of hospital admissions due to COVID-19, implying that wastewater concentrations add valuable information about the underlying transmission and that the imminent development of the near-future disease burden from COVID-19 is better informed when carefully including wastewater concentrations.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"966 ","pages":"Article 178674"},"PeriodicalIF":8.2,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143183093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"The relationship between protist consumers and soil functional genes under long-term fertilization","authors":"Peixin Ren ,&nbsp;Anqi Sun ,&nbsp;Xiaoyan Jiao ,&nbsp;Qing-Lin Chen ,&nbsp;Hang-Wei Hu","doi":"10.1016/j.scitotenv.2025.178658","DOIUrl":"10.1016/j.scitotenv.2025.178658","url":null,"abstract":"<div><div>Protists play a crucial role in terrestrial ecosystems by participating in biogeochemical cycles and contributing to ecological balance and stability. However, much remains to be understood about the intricate interactions between soil protists and biogeochemical processes. Here, we collected rhizosphere soil samples from seven distinct fertilization treatments to investigate the responses of bacteria, protists and functional genes to these varying fertilization practices during sorghum's maturity season. The community composition of both protists and bacteria were significantly affected by different fertilization treatments, with organic fertilization increasing protist diversity but not affecting bacterial diversity. There were noticeable variations in the compositions of functional genes across different fertilization treatments, with organic fertilization enhancing the relative abundance of carbon and phosphorus cycling genes. While fertilization generally increased the relative abundance of protistan consumers, it was observed that organic fertilizers decreased the relative abundance of phototrophs. A substantial number of bacterial taxa, including <em>Acidibacter</em>, <em>Steroidobacter</em>, <em>Lysobacter</em> and <em>Agromyces</em>, which correlated positively with functional genes, were found to be prey for protistan consumers, indicating their crucial role in predicting soil functional genes. Altogether, this study highlights the significant impact of fertilization treatments, especially organic fertilization, on the diversity and functional dynamics of protist and bacterial communities, emphasizing the key role of protistan consumers in regulating the soil microbial community and modulating soil biogeochemical cycles.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"966 ","pages":"Article 178658"},"PeriodicalIF":8.2,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"A methodological framework for the optimal design of injection barriers against seawater intrusion in coastal-rural regions","authors":"Ilias Siarkos ,&nbsp;Zisis Mallios ,&nbsp;Ourania Tzoraki ,&nbsp;Pericles Latinopoulos","doi":"10.1016/j.scitotenv.2025.178679","DOIUrl":"10.1016/j.scitotenv.2025.178679","url":null,"abstract":"<div><div>Seawater intrusion (SWI) has nowadays evolved into a major problem for many coastal areas worldwide, adversely affecting both the environment and local economies. To alleviate its serious consequences, injection barriers are often employed as a countermeasure against SWI. However, planning proper injection strategies poses significant decision-making challenges in coastal aquifer management (CAM). In this context, this study investigates the applicability and effectiveness of constructing injection barriers to combat SWI, specifically aiming at designing optimal injection schemes. For this purpose, an advanced approach has been adopted that considers socio-economic factors associated with economic benefits in the agricultural sector and the implementation costs of injection, while incorporating the following components: (a) a hydro-economic model for investigating how groundwater salinity due to SWI advancement impacts farmers' profits; (b) a coupled simulation-optimization framework for maximizing farmers' profits at the farm level under various injection scenarios using different amount of water; (c) a cost-benefit analysis for assessing the economic viability of the applied scenarios by calculating the B/C (benefit/cost) ratio; and, finally, (d) an analysis focused on identifying the relationship between the B/C ratio and the amount of water used for injection. The ultimate goal is to determine the optimal water volume, at which economic benefits are equal to implementation costs (B/C = 1). Under this solution, benefits are maximized without costs exceeding them, thus ensuring the economic viability of injection. According to our results, an optimal water volume of 2.625*10⁶ m³/year allocated to the injection wells was determined. This allocation strongly depends on the spatial distribution of crops across agricultural parcels as certain injection wells were prioritized over others. In conclusion, this study provides valuable insights into the beneficial effects of injection barriers in combating SWI, while aiding operating managers in developing CAM strategies that are both cost-effective and acceptable to water users.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"966 ","pages":"Article 178679"},"PeriodicalIF":8.2,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143183090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Hydrological performance of bioretention in field experiments and models: A review from the perspective of design characteristics and local contexts","authors":"Tinghao Huang ,&nbsp;Jérémie Sage ,&nbsp;Didier Técher ,&nbsp;Marie-Christine Gromaire","doi":"10.1016/j.scitotenv.2025.178684","DOIUrl":"10.1016/j.scitotenv.2025.178684","url":null,"abstract":"<div><div>Bioretention is a widely used countermeasure to address stormwater runoff issues and restore the urban water balance. This review investigated the variety of designs and local contexts covered by earlier studies, as well as the means for assessing the hydrological performance of a bioretention system. It built on the analysis of 75 documents to discuss the adequacy of experimental setups or models for the evaluation of different performance indicators, and to summarise current knowledge regarding the impact of local context or design parameters on the hydrologic functioning of bioretention systems. The current literature was found to only partially cover the potential variety of local contexts or bioretention designs, and to sometimes omit critical information. Studies were for instance concentrated in regions with low seasonal rainfall variability for which limits the potential for investigating drought resilience issues and more generally restricts the applicability of their findings to other climate conditions. Regarding bioretention design, the use of environmental-friendly materials (renewable and local materials) as alternatives to traditional materials (sand, gravel, geotextile), as well as simpler designs with limited inputs of external materials (e.g. limited use of concrete or polymeric materials), remains largely overlooked. Besides, the over representation of lined system in current studies leads to a lack of understanding of the interactions between bioretention and the surrounding soil, despite evidence of their potential impact on the overall performance of bioretention in the case of unlined systems. In the reviewed studies, certain limitations of the most commonly used monitoring and modelling methods were identified. Event-based and short-term approaches made up a large proportion of the modelling and monitoring methods, but they lead to inaccuracies in annual and long-term performance. 1D models gained popularity due to their ease of use, but the simplification of configuration and hydrological processes and thus their influence on performance was rarely discussed.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"965 ","pages":"Article 178684"},"PeriodicalIF":8.2,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Formation mechanisms of chlorinated disinfection byproducts chlorinated benzoquinones from free aromatic amino acids: In vitro and in silico study","authors":"Bangyu Chen,&nbsp;Hui Shen,&nbsp;Yifan Jin,&nbsp;Qiang Wu,&nbsp;Jiangmin Liu,&nbsp;Xueyu Wang,&nbsp;Xinru Zhang,&nbsp;Haiying Yu","doi":"10.1016/j.scitotenv.2025.178685","DOIUrl":"10.1016/j.scitotenv.2025.178685","url":null,"abstract":"<div><div>Chlorinated benzoquinones (CBQs) are a class of disinfection byproducts (DBPs) that are widely present in aquatic environments. Due to their strong cytotoxicity and genotoxicity to aquatic organisms and humans, the identification of novel CBQs and the exploration of their formation mechanisms became the focus of recent research. In this study, a new group of chlorinated DBPs formed during chlorination of two aromatic amino acids, tyrosine (Tyr) and tryptophan (Trp), were identified for the first time. Four predominant formation pathways of the main chlorinated product from Tyr and Trp, dichloro-benzoquinone (DCBQ), were deduced based on the MASS spectrum data, which consist of reactions including electrophilic addition, chlorination, hydrolysis, decarboxylation, oxidation, dehydrochlorination, and cleavage of the pyrrole ring. The potential chlorination substituted sites of Tyr to form 2,6-DCBQ were further explored by quantum chemical calculations. Chlorination tended to occur at the <em>ortho</em> C-position of the –OH (hydroxyl) group in Tyr. The C1 site of Tyr was most prone to undergo monochlorination, and dichlorination was more likely to take place at C5 site of the monochlorinated product. In addition, the nitrogen atom (N18) of Tyr could also undergo chlorine substitution, but it was difficult to happen when the C1 and C5 sites were already substituted. By combining experimental and theoretical results, this study summarized the predominant pathway for the formation of 2,6-DCBQ during the chlorination process of amino acids. The outcome contributed to a deeper understanding of the implications for water safety and the potential health risks associated with chlorination byproducts.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"966 ","pages":"Article 178685"},"PeriodicalIF":8.2,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Permeable pavement blocks as a sustainable solution for managing microplastic pollution in urban stormwater","authors":"Jiwon Kong ,&nbsp;Seongeom Jeong ,&nbsp;Jieun Lee ,&nbsp;Sanghyun Jeong","doi":"10.1016/j.scitotenv.2025.178649","DOIUrl":"10.1016/j.scitotenv.2025.178649","url":null,"abstract":"<div><div>Permeable pavement systems (PPS) designed to store stormwater and facilitate its drainage into pipeline networks also provide the added advantage of retaining particulate pollutants in the stormwater runoff. Among these pollutants, microplastics (MPs), are increasingly being detected in the atmosphere and can be deposited in the environment via rainfall. Consequently, mitigating the transport of airborne MPs through rainfall is crucial for preventing water and soil contamination, thereby reducing the potential risks to human health and ecosystems. To achieve effective pollution control, an experimental study was conducted to assess MPs removal efficiencies and permeability performance of various permeable pavement blocks. The pore structure, which is a critical factor influencing permeability, was analyzed using porosity measurements and X-ray computed tomography imaging. Additionally, computational fluid dynamics (CFD) simulations were utilized to investigate the MPs removal mechanisms within the PPS, modeling the flow of MPs through blocks with distinct pore structures and varying permeability levels. Notably, Block A, with the highest permeability (1.7 mm/s), achieved removal efficiencies exceeding 90 % for polyethylene (PE) and polyethylene terephthalate (PET). CFD analysis revealed that low-density PE particles were retained more effectively, while high-density PET particles displayed greater mobility through the pavement blocks. Furthermore, as rainfall intensity increased, the removal efficiencies of PE and PET gradually decreased. This study highlights the critical role of material design and CFD-optimised pore structures in enhancing the efficacy of permeable pavement systems for urban stormwater management. By elucidating the MPs removal mechanisms driven by distinct transport behaviors of PE and PET particles based on density differences, these systems offer a promising solution for mitigating urban stormwater contamination and advancing sustainable water resource management.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"966 ","pages":"Article 178649"},"PeriodicalIF":8.2,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143183091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}