Science of the Total Environment最新文献

{"title":"Spatiotemporal evolution and influencing factors of blue carbon resilience in the East Java, Indonesia","authors":"Purwanto Purwanto ,&nbsp;Achmad Siddik Thoha ,&nbsp;Pipit Wijayanti ,&nbsp;Ravinesh Rohit Prasad ,&nbsp;Rita Noviani ,&nbsp;Listyo Yudha Irawan ,&nbsp;Kresno Sastro Bangun Utomo ,&nbsp;Siti Nur Farihah ,&nbsp;Eva Indra Sofiana ,&nbsp;Moh. Wahyu Kurniawan Zain ,&nbsp;Corrie Teresia Purba ,&nbsp;Erisa Elvada","doi":"10.1016/j.scitotenv.2025.179128","DOIUrl":"10.1016/j.scitotenv.2025.179128","url":null,"abstract":"<div><div>Global climate change occurring in the 21st century is causing a series of unprecedented environmental problems. Preservation and rehabilitation of blue carbon ecosystems can be one of the real efforts to mitigate climate change. This study considers a systematic and comprehensive study in characterizing the spatiotemporal evolution of blue carbon, the distribution of carbon emission and carbon sequestration, blue carbon balance ratio, blue carbon resilience index, and revealing the mechanism of blue carbon resilience controlled by various controlling variables of mangrove ecosystems in East Java from 2000 to 2020. The results show that the rate of mangrove forest expansion is relatively stable under the situation of increasing expansion and intensification of anthropogenic activities. Carbon emission and carbon sequestration by mangroves increased gradually, with blue carbon balance ratio dominated by carbon surplus, and carbon deficit clustered in large mangrove areas with low amount of carbon emission. The blue carbon resilience index showed a decreasing trend during the study period, which could threaten the existence of mangrove ecosystems. Spatial econometric models such as the Spatial Durbin Model (SDM) can reveal the direct and indirect effects as well as the total spatial effects of mangrove ecosystem control variables on the level of blue carbon resilience during the study period, both in the short and long term. The SDM decomposition results are detailed in this article.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"973 ","pages":"Article 179128"},"PeriodicalIF":8.2,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687605","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":"Health of plateau soil environment: Corresponding relationship of heavy metals in different land use/cover types (LULCC)","authors":"Zhenghui Fu ,&nbsp;Yong Liu ,&nbsp;Xia Jiang ,&nbsp;Huaicheng Guo ,&nbsp;Shuhang Wang ,&nbsp;Zheng Li","doi":"10.1016/j.scitotenv.2025.179162","DOIUrl":"10.1016/j.scitotenv.2025.179162","url":null,"abstract":"<div><div>The study of land use and land cover change (LULCC) in the Qinghai Tibet Plateau is an important part of regional land science and global change science research. Due to their sensitive response to climate change, plateau lakes undergo changes in their surrounding land use types and soil physicochemical properties, which in turn affect soil environmental health. In the context of global climate change, more scholars are focusing on the relationship between climate change and the transformation of land use types, while research on the response relationship between land use types and pollutant accumulation at the end of the entire system is scarce. This study systematically analyzed the bioavailability and migration dynamics of heavy metals in soils of different land use types in the Qinghai Tibet Plateau watershed, providing solid data support for ecological protection and high-quality development of the plateau watershed, and offering new research ideas for water environment security in the Qinghai Tibet Plateau under the background of climate change.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"973 ","pages":"Article 179162"},"PeriodicalIF":8.2,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687604","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":"Postmortem examinations show human activity impacts over half of seabirds beach-cast in Brazil","authors":"Laura Baes ,&nbsp;Caroline Freitas Pessi ,&nbsp;Lauren Roman ,&nbsp;Henrique Chupil ,&nbsp;Priscilla Carla dos Santos Costa ,&nbsp;Carolina Reigada","doi":"10.1016/j.scitotenv.2025.179197","DOIUrl":"10.1016/j.scitotenv.2025.179197","url":null,"abstract":"<div><div>The Southern Atlantic Ocean is home to globally significant seabird populations, and off Brazil little is known about health condition in many species. Despite major known threats that these birds face (i.e., bycatch in fisheries, climate change, disease and pollution), plastic ingestion has become an emerging risk to seabirds, of which it is not clear how sublethal effects take part in the health of individuals that wash up along the coastline. Therefore, this study aimed to characterize seabird health of beach-cast seabirds in Brazil to understand how ingested plastic is related to cause of death and other pathologies. We reviewed complete postmortem examination records of 654 seabirds that beached between 2017 and 2021 in Southeastern Brazil. We identified a multitude of causes that lead to the beaching and death of wild seabirds, including natural and anthropogenic causes, and we also found that over half of analyzed seabirds were impacted by anthropogenic activity (fisheries, oil, plastic, and trauma). Fisheries foremost among them have been impacting seabirds in interactive ways, through bycatch, trauma, and by mismanaged associated debris. We found 5 % of birds that ingested plastic had potential debris obstruction in the gastrointestinal tract, and a possible relationship between ingested plastic and starvation either as a cause of death or as a pathological condition. This study highlights that seabird populations that beach in southeastern Brazil are subject to multiple and interacting threats from anthropogenic activities, providing recent data that can serve as baseline for awareness, conservation and public policies in the South Atlantic.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"973 ","pages":"Article 179197"},"PeriodicalIF":8.2,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687644","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":"Pesticides of natural origin as safer alternatives to synthetic pesticides: Identification of hinokitiol, tebuconazole and 2,4-D metabolites and evaluation of their impact on cereals","authors":"Marianna Kostina-Bednarz ,&nbsp;Joanna Płonka ,&nbsp;Ingus Perkons ,&nbsp;Vadims Bartkevics ,&nbsp;Hanna Barchanska","doi":"10.1016/j.scitotenv.2025.179177","DOIUrl":"10.1016/j.scitotenv.2025.179177","url":null,"abstract":"<div><div>The persistence of synthetic pesticides in ecosystems and the accumulation of their metabolites, which may have unknown toxicological properties, pose significant ecological and health risks. These compounds disrupt key plant metabolic pathways, affecting the synthesis of amino acids, secondary metabolites, and phytohormones, ultimately influencing plant growth, development, and food quality. Natural allelochemical compounds, such as hinokitiol (β-thujaplicin), present promising alternatives due to their biopesticidal properties and lower environmental persistence. This study, for the first time, verifies the hypothesis that pesticides of natural origin are metabolized more rapidly and cause less disruption to plant metabolism compared to synthetic pesticides, thereby reducing ecological and health risks. This study evaluated the metabolic effects of applying hinokitiol, and synthetic pesticides, 2,4-dichlorophenoxyacetic acid and tebuconazole (1-(4-chlorophenyl)-4,4-dimethyl-3-(1H-1,2,4-triazol-1-ylmethyl)pentan-3-ol), to wheat and barley under controlled conditions. A metabolic fingerprinting liquid chromatography–mass spectrometry (LC-MS)/MS approach was applied to comprehensively assess the global metabolic response of the plants to both natural and synthetic pesticides. High-resolution LC-Full-MS/ddMS² was employed to identify pesticide metabolites and track their degradation kinetics over a four-week period. This study evaluated the influence of biopesticides on the biosynthesis of amino acids, L-phenylalanine, L-tyrosine, and L-tryptophan, in treated plants. Hinokitiol induced modest changes in biogenic amine profiles (up to 50 % alterations), in contrast to the significant modifications observed with tebuconazole, which led to changes up to 270 % relative to the blank control. This research highlights a breakthrough in sustainable crop protection by demonstrating the lower ecological footprint and metabolic impact of natural pesticides compared to synthetic ones.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"973 ","pages":"Article 179177"},"PeriodicalIF":8.2,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687641","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":"Insight into sequestration and release characteristics of uranium(VI) on phlogopite in the presence of humic acid","authors":"Peng Wang ,&nbsp;Zhiwei Niu ,&nbsp;Xinyi Shi ,&nbsp;Fuyou Fan ,&nbsp;Xiangru Chen ,&nbsp;Duoqiang Pan ,&nbsp;Wangsuo Wu","doi":"10.1016/j.scitotenv.2025.179160","DOIUrl":"10.1016/j.scitotenv.2025.179160","url":null,"abstract":"<div><div>Knowledge of the sorption speciation and surface configuration of uranium(VI) at the mineral/water interface is essential to construct reliable retention and migration models. However, the ubiquitously existing natural organic substances at U(VI)-contaminated sites readily interact with U(VI) and interfere with the environmental fate of U(VI). In this work, the adsorption behavior and mechanism of U(VI) on phlogopite in the presence of humic acid (HA) were investigated by combining batch experiments, cryogenic time-resolved laser fluorescence spectroscopy (TRLFS), and extended X-ray absorption fine structure (EXAFS) spectroscopy. The batch sorption experiments at different HA concentrations suggested that HA had little effect at pH &lt; 4 but suppressed U(VI) sorption on phlogopite from pH 4 to 12. Fluorescence spectral characteristics indicated the formation of multiple surfaces and aqueous U(VI)-humate species, whose abundances varied with pH. The TRLFS coupled with EXAFS spectra suggested that the HA-U(VI) hybrids preferentially bind to surface sites via U(VI) rather than HA. The humate uranium species increased uranium release and migration risk in the natural environment. These findings elucidate the species characteristics and environmental behavior of U(VI) in the presence of natural humic acid and provide guidance for remediation treatments and safety assessment of uranium-contaminated sites.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"973 ","pages":"Article 179160"},"PeriodicalIF":8.2,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687603","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":"Evaluating the impact of storage zones on backward contaminant transport: A comparative study of the classic advection-dispersion equation and storage zone models in riverine systems","authors":"Amir Mohammad Saadat,&nbsp;Sajad Khodambashi Emami,&nbsp;Mehdi Mazaheri","doi":"10.1016/j.scitotenv.2025.179176","DOIUrl":"10.1016/j.scitotenv.2025.179176","url":null,"abstract":"<div><div>Accurate identification of unknown contaminant sources is a critical challenge in river management, where source characteristics must be inferred from limited observations. This study addresses this challenge by applying the inverse solution of the Transient Storage Model (TSM) using the Group Preserving Scheme (GPS) to evaluate the influence of storage zones in three test cases. In the first case, the direct and inverse TSM solutions were validated against tracer data from Uvas Creek and compared with results from the Advection-Dispersion Equation (ADE). The inverse TSM model outperformed ADE, accurately capturing delayed contaminant peaks and extended concentration tails due to storage effects, with statistical indicators (R² &gt; 90 %) and significantly lower RMSE values. The second case simulated a hypothetical river with non-uniform hydraulic and geomorphological conditions, demonstrating TSM's robustness in handling complex scenarios, where ADE struggled to reconstruct concentration peaks, particularly at later times. In the third case, a framework using dimensionless Péclet and Damköhler numbers was developed to characterize river conditions and transport relationships. Results showed that increasing the Péclet number and decreasing the Damköhler number improved model accuracy, with TSM performing better under strong storage effects. For rivers with low Damköhler values, the ADE model effectively approximated contaminant distribution. However, when the exchange rate between storage zones and the river is high, the ADE model exhibited significant errors in identifying source locations. This study demonstrates the TSM's advantage for precise contaminant tracking in rivers with complex transport dynamics, providing valuable insights for enhanced river pollution management.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"973 ","pages":"Article 179176"},"PeriodicalIF":8.2,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687642","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":"Anthropogenic stressors that favour nuisance species. A study from environmental DNA in marine plankton samples","authors":"Sara Fernandez ,&nbsp;Susana Acle ,&nbsp;Eduardo Dopico ,&nbsp;Paula Masiá ,&nbsp;Daniel Menéndez ,&nbsp;Johannes Rick ,&nbsp;Alba Ardura ,&nbsp;Eva Garcia-Vazquez","doi":"10.1016/j.scitotenv.2025.179194","DOIUrl":"10.1016/j.scitotenv.2025.179194","url":null,"abstract":"<div><div>Anthropogenic stressors reduce marine biodiversity. Tolerant species may develop in altered areas where they occupy niches that native species are unable to use. Species of biosecurity concern, like invasive aliens or harmful microalgae, are especially successful in disturbed areas. Here, we employed multiple regression approach to investigate the relationship between the proportion of planktonic stages of invasives and anthropogenic stressors. Planktonic species were inventoried from environmental DNA on water samples from the Bay of Biscay. Key findings were that the proportion of invasives was associated with port and touristic activities that are vectors for biological invaders, and with industrial pollution, likely for their tolerance to disturbed environments. The proportion of toxic algae was correlated with port activity, reinforcing the role of maritime traffic as a vector of harmful microalgae. An increase of nuisance species is expected under the current growth of pollution in the ocean. Promoting awareness of biological invasions among maritime sectors and tourists, and controlling pollution, seem priorities for environmental conservation in this region and elsewhere.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"973 ","pages":"Article 179194"},"PeriodicalIF":8.2,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687643","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":"Investigations of spatial-temporal distribution and regional transport in typical section of NO2 in eastern China using Mobile-DOAS","authors":"Zhidong Zhang ,&nbsp;Pinhua Xie ,&nbsp;Ang Li ,&nbsp;Jin Xu ,&nbsp;Xin Tian ,&nbsp;Feng Hu ,&nbsp;Zhaokun Hu ,&nbsp;Yinsheng Lv ,&nbsp;Youtao Li ,&nbsp;Qiang Zhang ,&nbsp;Wenqing Liu","doi":"10.1016/j.scitotenv.2025.179174","DOIUrl":"10.1016/j.scitotenv.2025.179174","url":null,"abstract":"<div><div>As the most economically, industrially, and transport-developed region in China, Eastern China suffers from severe pollution due to anthropogenic emissions. To better understand the distribution and transport of pollutants in this region, a regional-scale long-distance mobile observation experiment was conducted from August to September 2020 in the North China Plain (NCP), the Yangtze River Delta (YRD), and the southeastern coastal (SEC) areas, obtaining the distribution characteristics of NO₂ column concentrations in different areas. The NO₂ pollution in the Beijing-Tianjin-Hebei region of the NCP, especially along the southwest measurement line on the eastern side of the Taihang Mountains, is the most severe. The NO₂ values in the SEC only show an increase around several large cities. The highest NO₂ values were recorded on the Hefei to Shanghai segment in the YRD. The study further discusses the NO₂ transport process along the typical transport section from Hefei to Shanghai. By combining WRF-Chem model simulations, the NO₂ transport flux across the section was quantitatively analyzed. The results showed that under a southerly wind field, the measured and modeled NO₂ transport fluxes were 10.588 kg/s and 13.254 kg/s, respectively; under a northerly wind field, the measured and modeled fluxes were 28.881 kg/s and 32.207 kg/s, respectively. The measured values differed by 2.73 times, and the modeled values differed by 2.43 times, indicating a significant difference in transport flux between the north and south directions. Combining emission inventory data, it was found that the NO_x emission rate in the northern part of the YRD is 2.03 times that of the southern part, indicating high NO_x emissions. This study reveals the differences in pollution transport flux in the north-south direction of the region, providing data support for exploring new pathways for regional linkage, coordinated management, and win-win cooperation in total pollutant control.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"973 ","pages":"Article 179174"},"PeriodicalIF":8.2,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687606","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":"Converting carbonyl index values in microplastics studies","authors":"Zijiang Yang,&nbsp;Hisayuki Arakawa","doi":"10.1016/j.scitotenv.2025.179182","DOIUrl":"10.1016/j.scitotenv.2025.179182","url":null,"abstract":"<div><div>The variability in carbonyl index (CI) calculation methods among studies has made direct comparison of CI values challenging. To address this, we developed a CI conversion methodology that enables the unification of CI values across studies. Using spectra data from environmental microplastic samples, a polynomial regression model was developed to convert predictor CI values into a target CI. The optimal model order was determined through five-fold cross-validation, which also demonstrated the model's ability to explain 36 %–84 % of the variance depending on the predictor CI method. The developed model was further applied to convert average CI values from different studies in coastal regions around Japan. Results revealed that microplastics in the southeast coastal regions of Japan are more oxidized than those in the west coastal regions, likely due to differences in environmental exposure and retention time. The developed methodology is also adaptable to CI calculation methods not explicitly covered in this study.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"973 ","pages":"Article 179182"},"PeriodicalIF":8.2,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687640","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":"Nitrate contamination in groundwater across Switzerland: Spatial prediction and data-driven assessment of anthropogenic and environmental drivers","authors":"Gustavo Covatti ,&nbsp;Kai-Yun Li ,&nbsp;Joel Podgorski ,&nbsp;Lenny H.E. Winkel ,&nbsp;Michael Berg","doi":"10.1016/j.scitotenv.2025.179121","DOIUrl":"10.1016/j.scitotenv.2025.179121","url":null,"abstract":"<div><div>Excessive nitrate in groundwater, which is primarily caused by anthropogenic activities, is a worldwide problem. Consequently, Goal 6 of the UN Sustainable Development Goals lists nitrate as one of the key indicators of groundwater quality. However, in most countries, the nationwide occurrence of nitrate is unknown, as the monitoring networks only represent small points in space. To bridge this gap, machine learning modelling that predicts nitrate concentrations at a high spatial resolution is a promising tool to identify high-risk areas. Here, we use random forest machine learning to predict nitrate concentrations across Switzerland based on 1336 monitoring sites. The model revealed that approximately 35 % of the Swiss Plateau, Switzerland's most populous region, has a high probability of exceeding the Swiss guideline value of 25 mg/l for groundwater nitrate. We also investigated the individual importance and influence of anthropogenic and environmental variables associated with high nitrate concentrations by combining SHapley Additive exPlanations with expert knowledge of physical and geochemical processes. In addition to well-known influences of anthropogenic features (e.g. land use), we found that other environmental features including high springtime precipitation, low summertime precipitation, low soil organic carbon content, low river density and greater distance to large rivers, were indicative of high nitrate concentrations. These features directly relate to large-scale nitrate transport and attenuation processes (denitrification and dilution), but have received sparse attention in nitrate risk assessment and mitigation measures. Therefore, the approach and results of our study can be useful for nitrate studies around the world.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"973 ","pages":"Article 179121"},"PeriodicalIF":8.2,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687684","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}