Science of the Total Environment最新文献

{"title":"Influence of ferulic acid and active rice straw extract on the composting behaviour of PHBV and PHBV/PCL blend films","authors":"Eva Moll ,&nbsp;Amparo Chiralt","doi":"10.1016/j.scitotenv.2025.180124","DOIUrl":"10.1016/j.scitotenv.2025.180124","url":null,"abstract":"<div><div>The biodegradation of polymer films is affected both by their composition and structure and by the environmental conditions. Composting behaviour of poly(hydroxybutyrate-<em>co</em>-hydroxyvalerate) (PHBV) films was studied at lab-scale, according to ISO 20200:2023, as affected by its blend (1:1) with polycaprolactone (PCL), and the presence (6 % wt.) of active compounds (Ferulic acid: FA, and rice straw extract: RSE). The film disintegration (mass loss) was monitored over the composting time, by microstructural analysis, FTIR spectroscopy, and thermal analyses. All films disintegrated completely at the end of the test (84 days), but the disintegration rate was affected by the formulation. PHBV and blends films containing RSE exhibited the fastest disintegration whereas blend films without actives were the slowest. In every case, the surface erosion provoked by the biofilm action was the main mechanism responsible for the film thinning, but bulk hydrolysis also occurred to a different extent. RSE, with high content of carbohydrates, promoted the film porosity and bulk hydrolysis of both PHBV and its blend with PCL where the crystallinity of PCL was promoted. FA also accelerated the hydrolysis of the PHBV amorphous phase as well as the crystalline phases of PCL, as deduced from DSC analysis. Therefore, degradation rate was affected by overlapping of the different mechanism, depending on the film composition and structure. Promoting the water diffusion through the film favoured the hydrolytic processes and the enzymatic action of the biofilm microorganisms, whose population and activity could also be affected by film components.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"995 ","pages":"Article 180124"},"PeriodicalIF":8.2,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703024","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 critical review on the application of environmental DNA (eDNA) metagenomics in monitoring and assessing biological communities post marine oil spills","authors":"Lingzhi Li ,&nbsp;Haoshuai Li ,&nbsp;Jinbo Cui ,&nbsp;Mutai Bao","doi":"10.1016/j.scitotenv.2025.180110","DOIUrl":"10.1016/j.scitotenv.2025.180110","url":null,"abstract":"<div><div>Oil spills pose a serious threat to marine communities, and there is an urgent need for an effective technique to monitor and assess the impacts on biological communities. While traditional methods with low sensitivity, being time-consuming and limited resolution are difficult to meet the application requirements, environmental DNA (eDNA) metagenomics provides an effective tool for comprehensive and long-term monitoring of biomes through non-destructive sampling, which can detect multiple trophic levels at the same time. Meanwhile, this technology provides significant advantages in diversity analysis, community composition and abundance change assessment, and functional gene annotation, enabling a more comprehensive evaluation of oil spills' impacts on marine communities. This review critically summarizes the workflow, including sample collection, DNA extraction, sequencing and data analysis, provides a systematic overview of the application of eDNA metagenomics in marine oil spills, and explores the latest advances in current technologies. Here, we also discuss the technical challenges and future development potential of the method, and emphasize the importance of process standardization, the construction of a global DNA reference database, and artificial intelligence-assisted analysis, which establish a robust theoretical foundation for the systematic application of eDNA metagenomics in marine oil spills monitoring, and new research perspectives on marine ecological pollution management and remediation assessment. Although the method still faces certain technical challenges, its unique advantages in pollution prevention and remediation make it expected to become a core tool for global marine pollution monitoring and assessment.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"995 ","pages":"Article 180110"},"PeriodicalIF":8.2,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703026","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":"Global teal carbon: Stocks, sequestration, and its potential role in climate change mitigation","authors":"Shubham Kumar ,&nbsp;Laxmi Kant Sharma ,&nbsp;M. Siobhan Fennessy","doi":"10.1016/j.scitotenv.2025.180128","DOIUrl":"10.1016/j.scitotenv.2025.180128","url":null,"abstract":"<div><div>A colour-based nomenclature has developed in recent decades to characterise the distribution and distinct functions of organic carbon in natural ecosystems. ‘Teal carbon’, which is found in shallow inland freshwater wetlands, is the newest type of carbon added to the colour spectrum. Teal carbon ecosystems are more susceptible to anthropogenic activities and climate change than green and blue carbon ecosystems. A detailed global review of major teal carbon ecosystems was performed to highlight the status of teal carbon and its potential role in mitigating global climate change. Our estimates indicate that peatlands, (non-tidal freshwater) swamps, and (non-tidal freshwater) marshes store (mean ± standard deviation) approximately 101.63 ± 68.12 (1016 ± 681), 42.82 ± 40.01 (428 ± 400), and 13.97 ± 10.77 (140 ± 108) kg C m⁻² (Mg C ha⁻¹), respectively. The study highlights teal carbon ecosystems as major natural carbon emitters, with methane emissions of 68.79 ± 237.58, 30.48 ± 53.17, and 104.37 ± 130.82 g C-CH₄ m⁻² yr⁻¹, and carbon dioxide emissions of 644.59 ± 1018.56 and 713.07 ± 881.75 g C-CO₂ m⁻² yr⁻¹, respectively. On the other hand, peatlands, swamps, and marshes store considerable atmospheric carbon at the rate (mean ± standard deviation) of 125.5 ± 16.5, 216.7 ± 255.8 and 180 ± 170.5, respectively. Due to its extensive global reach and high annual carbon sequestration rate, teal carbon ecosystems have the highest global carbon sequestration potential, surpassing blue and green carbon ecosystems if they are properly conserved and managed. Therefore, the Development of Self-sustaining Teal Carbon Zones (DSTCZ) can be a natural climate solution (NCS) providing numerous ecosystem services to society. Conservation, restoration, and improved global datasets are necessary to enhance the natural carbon storage efficacy of ecosystems and refine climate projections.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"995 ","pages":"Article 180128"},"PeriodicalIF":8.2,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703025","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":"Pyrethroids in sediments and wastewater treatment plant-derived biosolids from Ireland","authors":"Shijie Wang ,&nbsp;Martin Sharkey ,&nbsp;Jingxi Jin ,&nbsp;William Stubbings ,&nbsp;Habib Bagheri ,&nbsp;Mark G. Healy ,&nbsp;Marie Coggins ,&nbsp;Mohamed Abou-Elwafa Abdallah ,&nbsp;Stuart Harrad","doi":"10.1016/j.scitotenv.2025.180108","DOIUrl":"10.1016/j.scitotenv.2025.180108","url":null,"abstract":"<div><div>Pyrethroids are widely used synthetic insecticides. This study reports the occurrence, distribution, and ecotoxicological risks of eight pyrethroids in sediments and biosolids from wastewater treatment plants (WWTPs) across Ireland. A total of 120 sediment samples were collected along with 3 biosolids samples from each of seven WWTPs (n = 21). The relative abundance of individual pyrethroids differed between sediment and biosolids samples. Permethrin, cyfluthrin, and cypermethrin were predominant in sediments, with cyfluthrin, permethrin and deltamethrin predominant in biosolids. Such disparities may reflect the anaerobic conditions and shorter residence times of biosolids within WWTPs compared to sediments, which may influence the extent of degradation of our target pyrethroids and drive differences in their relative abundance between biosolids and sediments. Pyrethroid concentrations in Irish sediments were generally within the global range. Among the four pyrethroids currently registered in Ireland (cypermethrin, esfenvalerate, deltamethrin, and λ-cyhalothrin), cypermethrin showed the highest concentrations in sediments, likely reflecting both agricultural, aquacultural, and indoor uses. Meanwhile, permethrin and cyfluthrin, although not registered for plant protection in Ireland, were also prevalent—permissible biocidal uses may explain the presence of permethrin, while cyfluthrin warrants further scrutiny. Risk quotient assessment of pyrethroid concentrations in Irish sediments, revealed that while bifenthrin and resmethrin posed low ecotoxicological risks, other pyrethroids such as permethrin, cyfluthrin, and cypermethrin presented moderate to high risk in many sediment samples. These findings highlight the widespread distribution and ecotoxicological risks associated with pyrethroid contamination in Ireland's aquatic environments, emphasising the need for continued monitoring and risk management strategies to mitigate their environmental impacts.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"995 ","pages":"Article 180108"},"PeriodicalIF":8.2,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703106","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":"Occupational hazards of emerging technologies: Insights from key-enabling technologies","authors":"Soqrat Omari Shekaftik ,&nbsp;Mohammad Javad SheikhMozafari ,&nbsp;Jamal Biganeh ,&nbsp;Fatameh Fasih Ramandi ,&nbsp;Seyed Jamaledin Shahtaheri","doi":"10.1016/j.scitotenv.2025.180101","DOIUrl":"10.1016/j.scitotenv.2025.180101","url":null,"abstract":"<div><div>The rapid evolution of technologies is driving innovations across sectors, introducing increased uncertainty and risks, particularly regarding occupational health and safety. The Key Enabling Technologies (KETs) identified by the European Commission are crucial for industrial competitiveness but require thorough risk assessments to address their hidden hazards.</div><div>This scoping review study aims to examine and identify occupational health risks linked to KETs. Relevant studies were sourced from Scopus, PubMed, and Web of Science databases using targeted keywords, with a search cutoff of December 2024. Initially, duplicates were removed, followed by a review of titles and abstracts. The full texts of the remaining articles were then analyzed.</div><div>Ultimately, 36 studies addressing the safety and health aspects of KETs were reviewed. Micro- and nanoelectronics present chemical, physical, psychological, and ergonomic risks, leading to issues such as skin irritation, respiratory disorders, reproductive effects, visual impairments, cancer, and job-related stress. In photonics and advanced materials, common risks include chemical toxicity, oxidative DNA damage, and sleep disorders. Biotechnology primarily poses biological and chemical hazards. Notably, the health risks associated with nanomaterials are better understood due to extensive research.</div><div>While KETs drive innovation and economic growth, they also introduce challenges for occupational health and safety. Workers face risks from chemical toxicity, physical hazards, and psychological stress, necessitating sustainable and ethical workplace practices. Protecting workers and ensuring responsible technological development require a multidisciplinary approach, incorporating engineering controls, policies, education, and adaptive safety guidelines.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"995 ","pages":"Article 180101"},"PeriodicalIF":8.2,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703207","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":"Metabolic syndrome in the SCAPIS cohort — Investigating associations at low level exposure to ambient air pollution","authors":"Martin Tondel ,&nbsp;Marta A. Kisiel ,&nbsp;Lars Barregard ,&nbsp;Marcus Dahlquist ,&nbsp;Karl Kilbo Edlund ,&nbsp;Charlotta Eriksson ,&nbsp;Jenny Lindvall ,&nbsp;Stefan Ljunggren ,&nbsp;Petter Ljungman ,&nbsp;Mare Lõhmus ,&nbsp;Johan Nilsson Sommar ,&nbsp;Tobias Nordquist ,&nbsp;Anna Oudin ,&nbsp;Göran Pershagen ,&nbsp;Leo Stockfelt ,&nbsp;Yiyi Xu ,&nbsp;Mikael Ögren ,&nbsp;Magnus Svartengren","doi":"10.1016/j.scitotenv.2025.180120","DOIUrl":"10.1016/j.scitotenv.2025.180120","url":null,"abstract":"<div><h3>Background</h3><div>Studies on long-term exposure to air pollution at high levels suggest an association with increased risk of metabolic syndrome (MetS). We aimed to study this relationship at very low levels, less well-studied, yet of public health importance.</div></div><div><h3>Methods</h3><div>The Swedish CArdioPulmonary bioImage Study (SCAPIS) consists of randomly selected subjects aged 50–64 years from six large cities in Sweden (n = 30,154). Participants underwent medical examination and answered a health-related questionnaire at enrolment. MetS was defined using established criteria. Residential exposure to PM_2.5 and NO₂ was modelled annually for each subject over 10 years before enrolment. Adjusted prevalence ratios (adj PR) were calculated both by quartiles of exposure and per 1 μg/m³ increment in PM_2.5 and NO₂, with adjustments for age, lifestyle and socioeconomic factors.</div></div><div><h3>Results</h3><div>Full information on exposure, covariates, and MetS was obtained for 13,997 (90.26 %) females and 12,978 (88.61 %) males, respectively. The 10-years mean exposures of PM_2.5 and NO₂ before enrolment were 6.57 and 11.47 μg/m³, respectively. The prevalence of MetS was 28.75 % in females and 38.20 % in males, respectively. Quartile analysis of PM_2.5 did not reveal significant increased adj PR for MetS, neither in females nor in males. For females the adj PR per 1 μg/m³ was 0.91 (0.89–0.94) and for males 0.95 (0.92–0.97), respectively. Similar, but somewhat weaker, associations were seen for NO₂.</div></div><div><h3>Conclusion</h3><div>Some inverse associations between air pollution and MetS were observed, but these results should be interpreted with caution due to limitations in the cross-sectional design. Results should not be interpreted beyond our studied exposure range.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"995 ","pages":"Article 180120"},"PeriodicalIF":8.2,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703209","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":"Susceptibility of persons with schizophrenia to extreme heat: A critical review of physiological, behavioural, and social factors","authors":"Nathalie V. Kirby ,&nbsp;Emily J. Tetzlaff ,&nbsp;Sean A. Kidd ,&nbsp;Eric E. Brown ,&nbsp;Mariya Bezgrebelna ,&nbsp;Liv Yoon ,&nbsp;Sarah B. Henderson ,&nbsp;Glen P. Kenny","doi":"10.1016/j.scitotenv.2025.179965","DOIUrl":"10.1016/j.scitotenv.2025.179965","url":null,"abstract":"<div><div>Schizophrenia is a severe mental illness affecting approximately 24 million people worldwide. Schizophrenia diagnosis is associated with more than double the all-cause mortality risk of the general population and a 13- to 15-year reduction in life expectancy, due to a myriad of intersecting factors and underlying causes. Persons with schizophrenia are particularly susceptible to the negative health effects of extreme heat, as demonstrated by the 2021 Western North America Heat Dome. During this event, schizophrenia was associated with a 3-fold increase in the odds of mortality in British Columbia, Canada, far surpassing the risks associated with other common heat-sensitive chronic conditions, including diabetes, hypertension, and heart disease. While individual factors such as age, presence of chronic disease, and medication-use can impair thermoregulation and limit a person's ability to sense and respond to heat, physiological and behavioural factors associated with schizophrenia can exacerbate these impairments. In-turn, social and community-level factors play important roles in aggravating or mitigating heat-health risks. However, to date, our understanding of the separate and combined influence of the physiological, behavioural, and social determinants underpinning heat-susceptibility in individuals with schizophrenia remains largely unresolved. We therefore conducted a critical review to examine the physiological factors that can increase susceptibility to the negative effects of heat in persons with schizophrenia and profile the social and community-level factors aggravating or mitigating these risks. An interdisciplinary, multi-level approach is essential to facilitate effective heat-health planning and community adaptation to prevent heat-related injuries and deaths in persons with schizophrenia during extreme heat.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"995 ","pages":"Article 179965"},"PeriodicalIF":8.2,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703204","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":"Ecological impacts of polylactic acid and polylactic acid-polyethylene microplastics on freshwater ecosystems: Insights from a water–Vallisneria natans–sediment system","authors":"Tao Xiang ,&nbsp;Jiayi Li ,&nbsp;Xian Lu ,&nbsp;Zhimiao Zhao ,&nbsp;Yinjiang Zhang","doi":"10.1016/j.scitotenv.2025.180099","DOIUrl":"10.1016/j.scitotenv.2025.180099","url":null,"abstract":"<div><div>Microplastics (MPs) are widely distributed in freshwater and seawater ecosystems around the world, posing a serious threat to ecological security and environmental health, and have become a global environmental problem. In this study, the effects of polylactic acid (PLA) MPs and polylactic acid-polyethylene (PLA-PE) MPs on freshwater ecosystems were simulated in a natural environment by constructing a water-<em>Vallisneria natans</em>-sediment system. The changes in the physicochemical parameters of the system's water quality, morphological characteristics of the plants, antioxidant enzyme system, and the structure of the microbial communities were comprehensively discussed. The results demonstrated that MPs had no discernible impact on the water physicochemical parameters within the system. PLA MPs did not influence the growth of <em>Vallisneria natans</em>, whereas the root length of <em>Vallisneria natans</em> was not affected in the PLA-PE MPs treatment groups. Low concentrations of MPs enhanced the activity of antioxidant enzymes (CAT, SOD, and POD) and increased oxidative stress markers (MDA). The PLA-PE MPs treatment groups exhibited a positive correlation between MDA content and CAT activity in response to the addition of PLA MPs. The microbial communities in the sediment and rhizosphere of <em>Vallisneria natans</em> exhibited less impact from PLA MPs and PLA-PE MPs, and the variability in community structure was not statistically significant. These findings provide valuable insights for refining the ecological risk assessment framework of PLA and PLA-PE MPs within integrated water–plant–sediment systems.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"995 ","pages":"Article 180099"},"PeriodicalIF":8.2,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703203","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":"Regulatory mechanism of microplastics on arsenic bioavailability in a subtropical estuary, China","authors":"Yue Zeng ,&nbsp;Yajie Jiang ,&nbsp;Yunqin Li ,&nbsp;Xiang Xu ,&nbsp;Rong Yu ,&nbsp;Wei Yu ,&nbsp;Binxin Wu ,&nbsp;Meiling Xiao","doi":"10.1016/j.scitotenv.2025.180095","DOIUrl":"10.1016/j.scitotenv.2025.180095","url":null,"abstract":"<div><div>The increasingly prominent microplastics (MPs) pollution may affect the dynamics of arsenic (As) in estuarine sediments, but the effect of MPs on the bioavailable arsenic (bio-As) and its regulatory mechanism are still unclear. In this study Min River estuary, a typical subtropical estuary, was selected, and DGT technology was used to explore the pattern of change, composition characteristics and regulatory mechanism of bio-As in sediment under the influence of MPs (type: polylactic acid (PLA) and polyethylene terephthalate (PET); dose: 1 % and 5 %) through incubation experiments. The results showed that (1) the low-dose PET significantly increased the concentration of bio-As, (2) during the incubation experiment, the effect of MPs on the composition of the bio-As was phased. In general, PLA and 5 % PET inhibited the oxidation of As(III), respectively, while 1 % PET did the opposite, (3) the low-dose PET significantly increased the diversity of microbial community, (4) <em>Bacteroidetes</em>, <em>Firmicutes</em>, <em>Proteobacteria</em>, <em>Desulfobacterota</em>, and <em>Chloroflexi</em> were the most dominant microbial groups. (5) PET decreased the abundances of <em>Bacteroides</em>, <em>Desulphurobacteria</em> and <em>Chlorocurvula</em>, but increased the abundances of <em>Proteobacteria</em>. PLA decreased the abundance of <em>Firmicutes</em> and <em>Chlorocurvula</em>, and increased the abundance of <em>desulphurobacteria</em> and <em>Proteobacteria</em>, and (6) <em>Marinobacter</em> and <em>Pseudomonas</em> would directly promote the redox reaction of As. The bacteria <em>Bacillus</em>, <em>Alkaliphilus</em>, <em>Haloplasma</em>, <em>Caminicella</em>, <em>Clostridiisalibacter</em>, <em>Desulfopila</em>, and <em>Desulfuromonas</em> were able to influence the change of As by changing environmental factors.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"995 ","pages":"Article 180095"},"PeriodicalIF":8.2,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703208","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":"Clustering of emission–dispersion dynamics in a state space defined by pollution sources and meteorological variables","authors":"Yuval ,&nbsp;Yoav Levi ,&nbsp;Pavel Khain ,&nbsp;David M. Broday","doi":"10.1016/j.scitotenv.2025.180051","DOIUrl":"10.1016/j.scitotenv.2025.180051","url":null,"abstract":"<div><div>The complex relationship between air pollution sources, the meteorological conditions governing their dispersion, and the resulting pollutant concentrations is an interesting scientific topic with significant implications for air resource management. A widely adopted approach to exploring these interactions is the interpretation of statistical models which simulate them. Dispersion conditions can vary markedly—from cold, calm nights with stable atmosphere to stormy periods characterised by intense turbulence and convection. Deeper insights can be obtained by interpreting statistical models trained on data subsets that correspond to specific emission–dispersion conditions. To achieve such distinct subsets, we present a robust and reproducible methodology for partitioning the multidimensional state space, defined by pollution sources and meteorological variables, into a large number of clusters at each monitoring location. Our methodology ensures a systematic and objective analysis across multiple stations. We analyse four years of hourly data, integrating high-resolution meteorological outputs from a numerical weather prediction model with traffic volume data used as proxies for emissions or precursors of NO, NO₂, NO_x, PM_2.5, and O₃ concentrations. These pollutants were observed at 85 air quality monitoring stations across Israel. The resulting clusters capture sub-daily temporal patterns that are indicative of distinct emission–dispersion scenarios in the region. We demonstrate that statistical models trained on these clustered subsets consistently outperform models trained on the full-period datasets. This highlights the value of our clustering approach in improving both predictive performance and scientific understanding of air pollution dispersion dynamics.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"995 ","pages":"Article 180051"},"PeriodicalIF":8.2,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703205","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}