Science of the Total Environment最新文献

{"title":"Hydrological and geochemical controls of surface water and suspended sediment toxic metal fluxes from nearshore large coal ash pond","authors":"Stephen Anderson ,&nbsp;Natasha T. Dimova ,&nbsp;Dini Adyasari","doi":"10.1016/j.scitotenv.2025.179411","DOIUrl":"10.1016/j.scitotenv.2025.179411","url":null,"abstract":"<div><div>Toxic metals leached from ash coal ponds can pose a severe hazard to waterways and coastal areas. Observed toxic metal levels in surface waters near the largest ash pond in the Mobile-Tensaw Delta, Alabama, were the result of the interplay of multiple factors, including the specific chemical properties of individual metals and in situ environmental conditions driven by seasonal hydrological controls and flooding versus non-flooding conditions. We found that erosion and sediment resuspension after a significant rain event and flooding resulted in nearly double increase of major and trace metal concentrations in surface waters compared to non-flooding conditions. However, aluminium-iron (Al<img>Fe) co-precipitation and flocculation also controlled trace metal levels in surface water, especially during the dry season when seawater with higher pH and salinity from Mobile Bay propagated upstream. The highest arsenic (As) content in suspended sediments (44.6 mg/kg) was found near the Coal Power plant's discharge channel during the dry season. This level is similar to legacy contaminations found following the Kingston, TN ash spill (10 to 57 mg/kg). Higher river flow was associated with higher suspended sediment and suspended sediment-bound trace metal fluxes. However, when analyzing contaminated sediments near the ash pond, trace metal fluxes during the dry season exceeded the wet season, and ultimately, enrichment of As and Cd was observed near the discharge channel. These findings aim to promote research in similar environments impacted by coal ash and to more comprehensively understand the relationship between toxic metals' partitioning and seasonal environmental conditions within the Mobile-Tensaw Delta.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179411"},"PeriodicalIF":8.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863338","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":"Cascading droughts: Exploring global propagation of meteorological to hydrological droughts (1971–2001)","authors":"Amit Kumar ,&nbsp;Simon N. Gosling ,&nbsp;Matthew F. Johnson ,&nbsp;Matthew D. Jones ,&nbsp;Albert Nkwasa ,&nbsp;Aristeidis Koutroulis ,&nbsp;Hannes Müller Schmied ,&nbsp;Hong-Yi Li ,&nbsp;Hyungjun Kim ,&nbsp;Naota Hanasaki ,&nbsp;Rohini Kumar ,&nbsp;Wim Thiery ,&nbsp;Yadu Pokhrel","doi":"10.1016/j.scitotenv.2025.179486","DOIUrl":"10.1016/j.scitotenv.2025.179486","url":null,"abstract":"<div><div>An understanding of the spatiotemporal behaviour of Meteorological drought (MD) and Hydrological drought (HD) is crucial for analysing how drought propagation occurs. Here, drought events were treated as three-dimensional grid structures spanning space (latitude and longitude) and time. 31 years (1971–2001) of global MD and HD events were analysed for evidence of propagation, and the most severe 20 MD events explored in detail. From the Inter-Sectoral Impact Model Intercomparison Project (ISIMIP) data archive, precipitation data was used for identifying MD events and an ensemble of simulated runoff from several global hydrological models used for detecting HD events. A technique was developed based on overlapping of the spatial and temporal coverage of MD and HD events, to establish propagation, and to calculate several propagation features. In three dimensions, the transformation from MD to HD was characterised based on delayed instigation, elongated duration, and dampened intensity of the HD event. Additionally, pooling of MD events that resulted in one or multiple branched HD events were identified. Results indicate that minor MD events with short durations and small areas generally do not exhibit propagation. The frequency of HD events with drought duration of 6–12-months is higher than that of MD events with 6–12-month duration. Out of 1740 extreme MD events identified for the 31-year period, 272 events propagated and resulted in 395 extreme HD events. Propagation features for the 20 most severe MD events show substantial variation based on geographical location highlighting the influence of regional climatic and hydrological conditions. This study advances the understanding of global drought propagation mechanisms by addressing key methodological challenges and providing a structured framework for future large-scale drought assessments.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179486"},"PeriodicalIF":8.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863436","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":"Application of the application of the compact and useful PM2.5 instrument with gas sensors (CUPI-G) for high temporal and spatial resolution monitoring with weather factor integration","authors":"Anuva Bhowmick ,&nbsp;Suwanna Kitpati Boontanon ,&nbsp;Louise Olsen-Kettle ,&nbsp;Yali Li ,&nbsp;Narin Boontanon ,&nbsp;Yosuke Sakamoto ,&nbsp;Kentaro Murano ,&nbsp;Yoshizumi Kajii ,&nbsp;Ranjna Jindal","doi":"10.1016/j.scitotenv.2025.179361","DOIUrl":"10.1016/j.scitotenv.2025.179361","url":null,"abstract":"<div><div>Low-cost air pollution sensors have emerged as promising tools for monitoring air quality with high temporal and spatial resolution, especially in suburban areas of developed countries that are transitioning towards urbanization where air quality can vary significantly. The motivation for this research is to develop affordable, portable air quality sensors for suburban areas with limited access to expensive traditional monitoring equipment. This study utilized the Compact and Useful PM<span><math><msub><mrow></mrow><mn>2.5</mn></msub></math></span> Instrument with gas sensors (CUPI-G), a low-cost device designed to monitor PM<span><math><msub><mrow></mrow><mn>2.5</mn></msub></math></span>, CO, NO, NO<span><math><msub><mrow></mrow><mn>2</mn></msub></math></span>, and O<span><math><msub><mrow></mrow><mi>x</mi></msub></math></span> (from which O<span><math><msub><mrow></mrow><mn>3</mn></msub></math></span> was calculated). The high temporal resolution data in Kyoto, Japan, averaged over 31 s, revealed seasonal variations in pollutant levels. O<span><math><msub><mrow></mrow><mn>3</mn></msub></math></span> and CO concentrations were highest in summer, at 29.28 ppb and 95.33 ppb, respectively, and lowest in autumn, with values of 20.03 ppb for O<span><math><msub><mrow></mrow><mn>3</mn></msub></math></span> and 81.18 ppb for CO. Conversely, PM<span><math><msub><mrow></mrow><mn>2.5</mn></msub></math></span> levels were lowest in summer (4.95 μg/m<span><math><msup><mrow></mrow><mn>3</mn></msup></math></span>) and highest in autumn (5.08 μg/m<span><math><msup><mrow></mrow><mn>3</mn></msup></math></span>). Nearly a month of spatial analysis in three different areas (defined as residential, road, and educational) showed PM<span><math><msub><mrow></mrow><mn>2.5</mn></msub></math></span> concentrations were highest in residential areas, averaging hourly 21.53 μg/m<span><math><msup><mrow></mrow><mn>3</mn></msup></math></span>, while CO and O<span><math><msub><mrow></mrow><mn>3</mn></msub></math></span> levels were elevated near roadways, with concentrations of 188.02 ppb, and 46.62 ppb, respectively. This research innovatively employed low-cost sensor technology to deliver high-resolution air quality data and demonstrated that wind speed and direction along with temperature were significant factors contributing to suburban air pollution, providing insights into potential pollution sources, and meteorological risk factors for elevated pollution levels.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179361"},"PeriodicalIF":8.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853876","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":"Corrigendum to “Redistribution of vocal snapping shrimps under climate change” [Sci. Total. Environ. 954 (2024) 176191]","authors":"Junmei Qu ,&nbsp;Geng Qin ,&nbsp;Hongwei Huang ,&nbsp;Shaobo Ma ,&nbsp;Qiang Lin ,&nbsp;Zhixin Zhang ,&nbsp;Jianping Yin","doi":"10.1016/j.scitotenv.2025.179463","DOIUrl":"10.1016/j.scitotenv.2025.179463","url":null,"abstract":"","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"978 ","pages":"Article 179463"},"PeriodicalIF":8.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143879155","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":"Copula-based assessment of flood susceptibility in the island of Cyprus via stochastic multicriteria decision analysis","authors":"Constantinos F. Panagiotou","doi":"10.1016/j.scitotenv.2025.179469","DOIUrl":"10.1016/j.scitotenv.2025.179469","url":null,"abstract":"<div><div>This study implements a probabilistic framework that a) involves the generation of realizations of the criteria weights by sampling methods that model the structural dependence of multicriteria correlated data, b) evaluates the similarity of the simulated data with respect to the original dataset, and c) uses these realizations to estimate the spatial distribution of the statistical metrics of flood susceptibility, and quantifies the uncertainties that are propagated from the simulated weights to the susceptibility levels. Seven criteria have been selected according to the literature, namely, terrain elevation, slope, flow accumulation, rainfall intensity, distance from the drainage network, land use/land cover and soil. The results reveal that copula-based samples exhibit a superior ability to capture the dependence among strongly correlated criteria, whereas the simulated data based on principal component analysis (PCA) achieve better agreement in terms of the standard deviation. Consequently, copula-based samples of weighting coefficients are used to assess flood susceptibility in Cyprus via multicriteria decision analysis (MCDA). The results revealed that 50 % of the study area is classified as either highly susceptible or very highly susceptible to flooding, with the majority of these regions being present in the southern and southeastern parts of the study area. With respect to the validation dataset, the known flood-prone areas are classified as having either “Very High” (12–14 %) or “High” (&gt;<!--> <!-->7880 %) probabilities of flood occurrence. The proposed probabilistic framework can be directly applied in other biogeographical regions and geological contexts, depending on the characteristics of the study area.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179469"},"PeriodicalIF":8.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859587","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":"Letter to the Editor regarding “Methodological framework for life cycle assessment of sustainable aviation (SA) systems”","authors":"Michael P. Weinold ,&nbsp;Russell McKenna","doi":"10.1016/j.scitotenv.2025.179314","DOIUrl":"10.1016/j.scitotenv.2025.179314","url":null,"abstract":"","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179314"},"PeriodicalIF":8.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853874","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":"Investigating ozone build-up in the east of England during the July 2015 heat wave","authors":"Johana Romero-Alvarez ,&nbsp;Aurelia Lupaşcu ,&nbsp;Steve Dorling ,&nbsp;Claire E. Reeves ,&nbsp;Tim Butler","doi":"10.1016/j.scitotenv.2025.179464","DOIUrl":"10.1016/j.scitotenv.2025.179464","url":null,"abstract":"<div><div>Ozone (O₃) precursors controls have reduced peak episodes in the UK, yet some regions still exceed the 50 ppbv (8-h) limit under certain meteorological conditions. This study uses O₃-tagging within WRF-Chem to quantify NOₓ contributions to near-surface O₃ across the East of England during a short heatwave (30 June–5 July 2015), where O₃ peaked at 116 ppbv. Despite underestimating peak O₃, the model effectively captures the episode's evolution and spatial extent (MB: −2 ppbv, r: 0.78), depicting O₃ increases on the hottest days and their decline. During the peak O₃ event, Western Europe contributed ∼60 % of daily mean O₃, while domestic NOₓ emissions accounted for only ∼4.6 %. South-easterly winds transported O₃ and precursors from BENELUX, France, Germany, the North Sea, and the English Channel. Near-surface wind convergence (−0.00002 s⁻¹) with weaker westerlies redirected domestic O₃ to the central UK, intensifying continental influence. Conversely, south-south-westerly flows amplified domestic O₃ contributions.</div><div>Analysis of the processes contributing to O₃ build-up highlights that transboundary transport played a significant role during the peak event. Boundary layer growth contributed by entraining O₃-rich air (up to 10.3 ppb h⁻¹ across the boundary layer top), along with precursors from the residual layer, facilitating their downward mixing to surface levels. This process set the stage for in-situ photochemical O₃ production, which peaked at midday, contributing to a total daily O₃ production of 42 ppbv on average across the region. Our findings underscore the necessity of coordinated international efforts to manage transboundary pollution, alongside targeted local measures to reduce O₃ precursor emissions.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179464"},"PeriodicalIF":8.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853875","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":"Machine learning-based analysis on factors influencing blood heavy metal concentrations in the Korean CHildren's ENvironmental health Study (Ko-CHENS)","authors":"Seowoo Jung ,&nbsp;Surabhi Shah ,&nbsp;Jongmin Oh ,&nbsp;Yoorim Bang ,&nbsp;Ji Hyen Lee ,&nbsp;Hwan-Cheol Kim ,&nbsp;Kyoung Sook Jeong ,&nbsp;Huibyeol Park ,&nbsp;Eun-Kyung Lee ,&nbsp;Yun-Chul Hong ,&nbsp;Eunhee Ha ,&nbsp;Ko-CHENS Study group","doi":"10.1016/j.scitotenv.2025.179401","DOIUrl":"10.1016/j.scitotenv.2025.179401","url":null,"abstract":"<div><div>Heavy metal concentration in pregnant women affects neurocognitive and behavioral development of their infants and children. The majority of existing research focusing on pregnant women's heavy metal concentration has considered individual environmental factor. In this study, we aim to comprehensively consider lifestyle, food, and environmental factors to determine the most influential factor affecting heavy metal concentration in pregnant women. The Ko-CHENS (Korean CHildren health and ENvironmental Study) is a nationwide prospective birth cohort study in South Korea enrolling pregnant women from 2015 to 2020. A total of 5458 eligible pregnant women were included in this study, and 897 variables were included in questionnaire comprising: maternal general information, indoor and living environment, dietary habits, health behavior, exposure to chemicals. Lead, cadmium and mercury concentration on blood were measured in early, late pregnancy and in cord blood at birth. Variables that might be related to heavy metal concentrations were included in machine learning models. Random forest and XGBoost machine learning models were conducted for predictions. Both models had similar but better performance than multiple linear regression. Kimchi (β = 1.55), seaweed (β = 0.40), fatty fish (β = 1.55), intakes respectively affected lead, cadmium, and mercury exposure through early, late pregnancy and cord blood.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"978 ","pages":"Article 179401"},"PeriodicalIF":8.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855663","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":"Warmer and brighter winters than before: Ecological and public health challenges from the expansion of the pine processionary moth (Thaumetopoea pityocampa)","authors":"Jean-Pierre Rossi ,&nbsp;Andrea Battisti ,&nbsp;Dimitrios N. Avtzis ,&nbsp;Christian Burban ,&nbsp;Noureddine Rahim ,&nbsp;Jérôme Rousselet ,&nbsp;Carole Kerdelhué ,&nbsp;Kahraman İpekdal","doi":"10.1016/j.scitotenv.2025.179470","DOIUrl":"10.1016/j.scitotenv.2025.179470","url":null,"abstract":"<div><div>Assessing the species ecological responses to ongoing climate change is a critical challenge in environmental science. Rising temperatures, particularly in winter, are altering the distribution patterns of many species, including the pine processionary moth (PPM), <em>Thaumetopoea pityocampa</em> (Denis &amp; Schiffermüller, 1775). This Mediterranean species, a significant defoliator of conifers, is expanding its range northward as winter temperatures increase. The larvae of PPM also pose serious public health risks due to their ability to induce allergic reactions in humans, pets, and livestock. To better understand these ecological shifts, we calibrated three distribution models (Bayesian Additive Regression Trees, Boosted Regression Trees, and Random Forest) based on historical and modern occurrence data compiling of 1769 points, and assessed climate suitability under historical, current and future conditions. Our results show that winter minimum temperatures, summer maximum temperatures, and solar radiation significantly influence the life cycle, and shape the geographical distribution of PPM. Under current conditions, PPM could extend its range further north, but its limited flight capabilities hinder its ability to keep up with the pace of climate change. Future projections suggest continued northward expansion, although solar radiation is expected to limit the northernmost range of PPM. Certain host tree species of PPM are frequently used as ornamental plants, particularly in urban areas, which makes the careful selection of these species a potentially valuable tool for management. Our findings identify regions that are likely to become suitable for PPM colonization, where proactive measures could be implemented.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"978 ","pages":"Article 179470"},"PeriodicalIF":8.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855662","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":"Antimony and arsenic interactions with iron oxides and aluminum oxides in surface environment: A review focused on processes and mechanisms","authors":"Shuo Xiang,&nbsp;Zhiyou Fu,&nbsp;Hongyue Lu,&nbsp;Yuwei Sun,&nbsp;Yimeng Shen,&nbsp;Fengchang Wu","doi":"10.1016/j.scitotenv.2025.179423","DOIUrl":"10.1016/j.scitotenv.2025.179423","url":null,"abstract":"<div><div>It has been assumed and widely reported that arsenic (As) and antimony (Sb) share some similarities but also exhibit significant differences in their geochemical behaviors. Their environmental fates are generally controlled by iron (Fe) oxides and aluminum (Al) oxides. The mechanistic differences in their interactions, especially under dynamic environmental conditions, remain poorly understood, which hinders the development and implementation of effective pollution prevention and control measures. Therefore, this review focuses on the processes and mechanisms of interactions between As/Sb and Fe oxides/Al oxides. Antimony exhibits a higher susceptibility to oxidation than As due to its larger atomic radius and lower electronegativity. The property is an important basis for explaining the differences in their interactions in the environment. To obtain a clearer understanding of interactions, a detailed adsorption theory (charge distribution multi-site ion complexation) for the Fe oxides and Al oxides and three primary adsorption mechanisms (electrostatic adsorption, chemical adsorption, and coprecipitation) were explored. Furthermore, the effects of various factors (pH, redox, surface coverage, competing ions, and types of Fe oxides and Al oxides) on the adsorption efficiency were evaluated. We discussed the mechanisms and efficiency of Sb and As adsorption on Fe oxides and Al oxides, and the differences in Sb and As adsorption for various valence states. To efficiently control Sb and As pollution, some differences between Sb and As need to be taken into account.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179423"},"PeriodicalIF":8.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859588","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}