Science of the Total Environment最新文献

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Ambient air pollution, dietary patterns, and the risk of incident cerebrovascular diseases: A prospective cohort study 环境空气污染、饮食模式和脑血管疾病发生风险:一项前瞻性队列研究
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2025-07-08 DOI: 10.1016/j.scitotenv.2025.180030
Bolun Cheng , Wenming Wei , Chuyu Pan , Li Liu , Shiqiang Cheng , Xuena Yang , Peilin Meng , Boyue Zhao , Jinyu Xia , Yan Wen , Feng Zhang
{"title":"Ambient air pollution, dietary patterns, and the risk of incident cerebrovascular diseases: A prospective cohort study","authors":"Bolun Cheng ,&nbsp;Wenming Wei ,&nbsp;Chuyu Pan ,&nbsp;Li Liu ,&nbsp;Shiqiang Cheng ,&nbsp;Xuena Yang ,&nbsp;Peilin Meng ,&nbsp;Boyue Zhao ,&nbsp;Jinyu Xia ,&nbsp;Yan Wen ,&nbsp;Feng Zhang","doi":"10.1016/j.scitotenv.2025.180030","DOIUrl":"10.1016/j.scitotenv.2025.180030","url":null,"abstract":"<div><div>While recent research suggests air pollution and diet interactively influence cerebrovascular health, prospective studies integrating socioeconomic and geographic factors remain limited. We investigated associations between air pollutants and cerebrovascular diseases, emphasizing modification effects of dietary patterns across stratified populations. In a cohort of 249,044 UK Biobank participants, Cox proportional hazard models and restricted cubic spline regressions were used to evaluate associations of four air pollutants (PM<sub>2.5</sub>, PM<sub>2.5</sub><sub>–</sub><sub>10</sub>, NO<sub>2,</sub> and NO<sub>X</sub>) with seven cerebrovascular outcomes. Stratification analyses included sociodemographic (sex, age, body mass index, Townsend Deprivation Index (TDI), occupation), lifestyle (smoking, alcohol), and geographic factors. Dietary interactions were assessed via pollutant-diet cross-product terms across five food groups. Over a median follow-up of 10.8 years, 11,369 cases of cerebrovascular diseases were identified. PM<sub>2.5</sub> increased sequelae risk (HR = 1.102, 95 % CI: 1.039–1.169), particularly among males (1.132, 1.034–1.239) and adults ≥65 years (1.211, 1.098–1.335). PM<sub>2.5</sub><sub>–</sub><sub>10</sub> reduced transient cerebral ischaemic attacks risk in non-drinkers (0.746, 0.577–0.964). Stratified analyses revealed heightened PM<sub>2.5</sub>-cerebrovascular diseases association in high-TDI populations (1.079, 1.058–1.101), manual workers (1.065, 1.010–1.121), and urban residents (1.096, 1.026–1.172). Regarding dietary patterns, grain product intake attenuated PM<sub>2.5</sub> effects on cerebrovascular diseases risk (0.938, 0.893–0.986). Fruit intake reduced PM<sub>2.5</sub><sub>–</sub><sub>10</sub>-related sequelae risk (0.844, 0.748–0.952), particularly among high-TDI populations (0.833, 0.727–0.954) and urban residents (0.846, 0.738–0.969). This study indicates that prolonged exposure to ambient air pollutants may elevate the risk of cerebrovascular diseases, highlighting the importance of adhering to a healthy diet to mitigate the risk associated with air pollution.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"994 ","pages":"Article 180030"},"PeriodicalIF":8.2,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144579496","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}
引用次数: 0
Positive contributions of China's protected areas in biodiversity conservation and carbon storage under future climate change 未来气候变化下中国保护区在生物多样性保护和碳储存方面的积极贡献
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2025-07-08 DOI: 10.1016/j.scitotenv.2025.180035
Xuede Dong , Jirui Gong , Frank Yonghong Li , Lingfeng Mao , Weiyuan Zhang , Siqi Zhang , Guisen Yang , Chenyi Yan , Ruijing Wang , Shangpeng Zhang , Tong Wang
{"title":"Positive contributions of China's protected areas in biodiversity conservation and carbon storage under future climate change","authors":"Xuede Dong ,&nbsp;Jirui Gong ,&nbsp;Frank Yonghong Li ,&nbsp;Lingfeng Mao ,&nbsp;Weiyuan Zhang ,&nbsp;Siqi Zhang ,&nbsp;Guisen Yang ,&nbsp;Chenyi Yan ,&nbsp;Ruijing Wang ,&nbsp;Shangpeng Zhang ,&nbsp;Tong Wang","doi":"10.1016/j.scitotenv.2025.180035","DOIUrl":"10.1016/j.scitotenv.2025.180035","url":null,"abstract":"<div><div>Protected areas are crucial for sustaining species populations and minimizing habitat loss. However, climate change poses a global threat that introduces uncertainties to the effectiveness of existing protected areas and future conservation planning. Here, we analyzed the impact of climate change on protected area effectiveness in China by assessing species richness (mammals, reptiles, amphibians, birds, and plants) and carbon storage under current and future (2050s) climate scenarios. By integrating both current and future potential key areas, forward-looking priority conservation areas were identified to address the gaps in existing protected areas and to enhance climate change adaptation. The results showed spatial heterogeneity in the climate-change velocity, with higher rates in protected areas in eastern, northern, and northeastern China. Under climate change, changes in species richness in existing protected areas differ among taxonomic groups; the largest number of protected areas showed decreasing bird and mammal species richness. However, the number of protected areas with increased species richness exceeded that with declined, and the number of effectively protected species increased by 1 % to 4 %. In addition, 52 % of protected areas showed an increase in carbon storage capacity; thus, protected areas can remain effective under future climate change. Despite these positive trends, 62 % to 92 % of species and 88 % of carbon storage were not effectively protected. Expanding priority areas could conserve &gt;80 % of species and 30 % of carbon storage, both currently and in 2050. Our framework will help to assess the effectiveness of protected areas and to identify nearly optimal areas for future expansion.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"994 ","pages":"Article 180035"},"PeriodicalIF":8.2,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144571648","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}
引用次数: 0
Emergence of a conjugative hybrid plasmid co-harboring mcr-1.1, mcr-3.39, and tet(X4) in Escherichia coli from wastewater in Seoul: A potential threat to last-line antibiotics 在首尔污水中的大肠杆菌中出现了一种共携带mcr-1.1、mcr-3.39和tet(X4)的共轭杂交质粒:对最后一线抗生素的潜在威胁
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2025-07-08 DOI: 10.1016/j.scitotenv.2025.180039
Jin Seok Kim , Young Hee Jin , Jinwoo Kim , Chang-Kyu Kim , Sook Hyun Park , Ahryung Oh , YoungAh Yoo , Jae In Lee , Jihun Jung
{"title":"Emergence of a conjugative hybrid plasmid co-harboring mcr-1.1, mcr-3.39, and tet(X4) in Escherichia coli from wastewater in Seoul: A potential threat to last-line antibiotics","authors":"Jin Seok Kim ,&nbsp;Young Hee Jin ,&nbsp;Jinwoo Kim ,&nbsp;Chang-Kyu Kim ,&nbsp;Sook Hyun Park ,&nbsp;Ahryung Oh ,&nbsp;YoungAh Yoo ,&nbsp;Jae In Lee ,&nbsp;Jihun Jung","doi":"10.1016/j.scitotenv.2025.180039","DOIUrl":"10.1016/j.scitotenv.2025.180039","url":null,"abstract":"<div><div>The emergence of plasmid-mediated antimicrobial resistance to last-line antibiotics such as colistin and tigecycline poses an escalating public health threat. In this study, we identified an <em>Escherichia coli</em> strain (WWCOL-256) isolated from municipal wastewater in Seoul, South Korea, co-harboring the <em>mcr-1.1</em>, <em>mcr-3.39</em>, and <em>tet</em>(X4) genes. Genomic analysis revealed that these resistance genes were located on a 237.9-kb IncFIA(HI1)–HI1A–HI1B(R27) hybrid plasmid (pCOL256–1), with the <em>tet</em>(X4) gene embedded within an IS<em>Vsa3</em>-mediated transposon [∆IS<em>Vsa3</em>–<em>estT</em>–<em>tet</em>(X4)–IS<em>Vsa3</em>] and <em>mcr-1.1</em> associated with the IS<em>Apl1</em>–<em>mcr-1.1</em>–<em>pap2</em> structure. The <em>mcr-3.39</em> gene (∆Tn<em>As2</em>–<em>mcr-3.39</em>–<em>dgkA</em>–IS<em>Kpn40</em>) was likely acquired from a co-resident IncFII plasmid (pCOL256–2). Functional assays demonstrated that the plasmid pCOL256–1 can be transferred <em>via</em> conjugation and remains stable without antibiotic selection, underscoring its potential to disseminate colistin and tigecycline resistance. Although global surveillance has detected the frequent co-occurrence of the <em>mcr</em> and <em>tet</em>(X) genes, their co-localization on the same plasmid remains rare. To the best of our knowledge, this is the first report of a single plasmid co-harboring the <em>mcr-1</em>, <em>mcr-3.39</em>, and <em>tet</em>(X4) genes, highlighting the urgent need for enhanced environmental genomic surveillance to prevent the spread of multidrug resistance determinants.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"994 ","pages":"Article 180039"},"PeriodicalIF":8.2,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144579526","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}
引用次数: 0
Application of molecular docking in sorption of hydrophobic organic contaminants on black carbon 分子对接在炭黑吸附疏水性有机污染物中的应用
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2025-07-08 DOI: 10.1016/j.scitotenv.2025.180045
Tian Liang , Nannan Wan , Yan-Rong Zou , Xuan Kou , Zhao-Wen Zhan , Ping'’an Peng
{"title":"Application of molecular docking in sorption of hydrophobic organic contaminants on black carbon","authors":"Tian Liang ,&nbsp;Nannan Wan ,&nbsp;Yan-Rong Zou ,&nbsp;Xuan Kou ,&nbsp;Zhao-Wen Zhan ,&nbsp;Ping'’an Peng","doi":"10.1016/j.scitotenv.2025.180045","DOIUrl":"10.1016/j.scitotenv.2025.180045","url":null,"abstract":"<div><div>This study explored the mechanism and environmental significance of hydrophobic organic contaminants (HOCs) sorption by black carbon samples (BCs) using a newly developed molecular structure establishment method and the latest molecular docking technology. BCs of different evolution stages were prepared based on low maturity kerogen. Total of 70 types of HOCs molecules were selected, including alkanes, cycloalkanes, polycyclic aromatic hydrocarbons, and their derivatives, as ligands to perform docking studies using five different BCs molecular models. Based on the Gibbs free energy distribution between HOCs and BCs obtained by docking calculation, the capacity of sorption was deduced. The results showed that the molecular weight, methyl content, and condensation degree are the three main factors affecting the sorption ability of HOCs on BCs, and aromatic compounds have remarkable advantages in sorption, following the order of aromatic compounds &gt; cycloalkanes &gt; alkanes. It is worth noting that in order to ensure the correctness of molecular docking technology in the inference of adsorption capacity, we carried out the adsorption experiments of BCS with eight organic reagents. The experimental results are highly consistent with the calculated results, which not only proves the feasibility of this technology, but also shows that the intermolecular force represented by Gibbs free energy is closely related to the capacity of sorption. This study establishes a novel approach to elucidate contaminant-macromolecule interactions, enabling prediction of HOCs environmental behavior and evaluation of BCs' sequestration potential. The method enhances experimental efficiency for multiphase pollutant sorption studies, proving particularly advantageous for preliminary screening. Importantly, it allows safe investigation of toxic/volatile compounds while ensuring researcher safety.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"994 ","pages":"Article 180045"},"PeriodicalIF":8.2,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144579527","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}
引用次数: 0
How temperature changes affect risk attitudes: Evidence from 1,708 farming households in China 温度变化如何影响风险态度:来自中国1708个农户的证据
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2025-07-08 DOI: 10.1016/j.scitotenv.2025.180033
Yujie Xia , Shuang Xu , Hongpeng Guo
{"title":"How temperature changes affect risk attitudes: Evidence from 1,708 farming households in China","authors":"Yujie Xia ,&nbsp;Shuang Xu ,&nbsp;Hongpeng Guo","doi":"10.1016/j.scitotenv.2025.180033","DOIUrl":"10.1016/j.scitotenv.2025.180033","url":null,"abstract":"<div><div>Due to the long-term trend of climate change, farmers—who are the key decision-makers in agricultural production—are likely to adjust their risk attitudes in response to climate change shocks. Our research focuses on how farmers, as the smallest decision-making agents in agriculture, respond to these changes. This study analyzes the 2018 China Family Panel Studies data using a temperature anomalies approach and a fixed-effects model to investigate how climate change affects farmers' risk attitudes. The research reveals a significant correlation between the magnitude of temperature fluctuations experienced by farmers and their tendency toward risk-taking. Specifically, the more drastic the temperature changes farmers experience between birth and interview, the higher their tendency toward risk aversion. Age plays an essential role in shaping changes in risk attitudes, whereas gender does not appear to have a notable effect. The findings of this study provide a theoretical foundation for developing policies and insurance programs, offering recommendations based on the observed shifts in risk attitudes.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"994 ","pages":"Article 180033"},"PeriodicalIF":8.2,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144579525","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}
引用次数: 0
Sustained nutrient removal in constructed wetlands using Equisetum giganteum 利用木贼草对人工湿地的持续养分去除
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2025-07-08 DOI: 10.1016/j.scitotenv.2025.180046
Hugo Daniel Di Giorgi , Alejandro Mariñelarena , Joaquín Cochero
{"title":"Sustained nutrient removal in constructed wetlands using Equisetum giganteum","authors":"Hugo Daniel Di Giorgi ,&nbsp;Alejandro Mariñelarena ,&nbsp;Joaquín Cochero","doi":"10.1016/j.scitotenv.2025.180046","DOIUrl":"10.1016/j.scitotenv.2025.180046","url":null,"abstract":"<div><div>Constructed wetlands are a cost-effective, nature-based solution for water pollution control, offering ecological and socioeconomic benefits as a sustainable alternative for secondary and tertiary wastewater treatment. While some <em>Equisetum</em> species act as “nutrient pumps” by removing soil nutrients, research on their use in wastewater treatment remains limited.</div><div>The aim of this study was to measure the nutrient removal efficiency (N and P) from secondary wastewater comparing two helophytes commonly used in wastewater treatment (<em>Phragmites australis</em>, <em>Typha latifolia</em>) to <em>Equisetum giganteum</em>. A two-year experiment was conducted in outdoor mesocosms, comparing the removal of nutrients from wastewater in these species of plants to control mesocosms with sand.</div><div><em>E. giganteum</em> demonstrated consistently high nutrient removal rates throughout the experiment, outperforming all other plant candidates. It removed 76.88 % of total phosphorus and 74.18 % of soluble reactive phosphorus, maintaining over 50 % removal for most of the studied period. Its total phosphorus removal mass rate was significantly higher than that of other species. Similarly, total nitrogen removal was nearly 13 times higher than controls, with an average removal of 57.7 %, remaining positive even during cold seasons. Ammonia nitrogen was almost completely removed, and while nitrates increased, <em>E. giganteum</em> still removed nearly twice as much N-NO<sub>3</sub><sup>−</sup> as the other treatments.</div><div>This study highlights <em>E. giganteum</em>-constructed wetlands as highly efficient for tertiary wastewater treatment, removing significant P and N percentages over extended periods in outdoor conditions. <em>E. giganteum</em>'s nutrient absorption provides an eco-friendly solution for nutrient removal and recovery, aligning with green and sustainable wastewater treatment principles.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"994 ","pages":"Article 180046"},"PeriodicalIF":8.2,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144571504","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}
引用次数: 0
Feasibility of using Pleurozium schreberi as a biomonitor to study antiozonant dispersion: A case study in Southern Quebec 利用施勒氏胸膜菌作为生物监测仪研究抗臭氧扩散的可行性:以魁北克南部为例
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2025-07-08 DOI: 10.1016/j.scitotenv.2025.180047
Shaghayegh Ramezany , Guillaume Martinez , Adrien Mugnai , Daniel Houle , Jean-Philippe Bellenger
{"title":"Feasibility of using Pleurozium schreberi as a biomonitor to study antiozonant dispersion: A case study in Southern Quebec","authors":"Shaghayegh Ramezany ,&nbsp;Guillaume Martinez ,&nbsp;Adrien Mugnai ,&nbsp;Daniel Houle ,&nbsp;Jean-Philippe Bellenger","doi":"10.1016/j.scitotenv.2025.180047","DOIUrl":"10.1016/j.scitotenv.2025.180047","url":null,"abstract":"<div><div>p-Phenylenediamine antioxidants (PPDs), widely used as additives in tires and rubber, are released into the environment through tire and road wear particles. These compounds undergo oxidative processes, forming quinone derivatives that pose significant environmental and health risks, particularly to aquatic organisms (EPA, 2024). While runoff has been identified as the primary transport mechanism, the atmospheric dispersion of PPDs has received less attention. Bryophytes have been widely used as biomonitors of airborne contaminants and atmospheric deposition. Using a biomonitoring approach, this study investigated the atmospheric deposition of PPD antiozonants, including 6PPD, 6PPDQ, and DPPD, across Southern Quebec (Canada), a region characterized by the highest population density and pollution levels in the province. Samples of <em>Pleurozium schreberi</em>, a common species used for biomonitoring of atmospheric deposition, were collected on three site types with varying degrees of traffic exposure: roadsides, parks/playgrounds, and non-urban areas. Our findings demonstrated atmospheric dispersion of PPDs throughout Southern Quebec with a decreasing trend in total concentrations of PPDs with increasing distance from traffic. 6PPDQ was the most frequently detected compound, ranging from &lt;LOQ to 3.71 ng g<sup>−1</sup>. DPPD, the least detected, ranged from &lt;LOQ to 4.92 ng g<sup>−1</sup>. 6PPD showed intermediate detection frequencies but the highest concentrations, up to 59.01 ng g<sup>−1</sup>. This study validates that <em>P. schreberi</em> is a valuable tool for low-cost monitoring of PPD dispersal. Results underscore the spatial variability of PPDs and their derivatives, influenced by proximity to pollution sources, environmental conditions, and site characteristics. This study provides one of the few pieces of evidence supporting the atmospheric dispersion of PPDs, highlighting the need for further investigation.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"994 ","pages":"Article 180047"},"PeriodicalIF":8.2,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144571511","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}
引用次数: 0
Carbon dynamics and potential nutrient limitations in an oak forest under experimental canopy nitrogen deposition 实验冠层氮沉降下栎林碳动态及潜在养分限制
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2025-07-08 DOI: 10.1016/j.scitotenv.2025.180027
Daniel Minikaev , Giustino Tonon , Maurizio Ventura , Flavio Fornasier , Luca Da Ros , Ben du Toit , Camilla Wellstein
{"title":"Carbon dynamics and potential nutrient limitations in an oak forest under experimental canopy nitrogen deposition","authors":"Daniel Minikaev ,&nbsp;Giustino Tonon ,&nbsp;Maurizio Ventura ,&nbsp;Flavio Fornasier ,&nbsp;Luca Da Ros ,&nbsp;Ben du Toit ,&nbsp;Camilla Wellstein","doi":"10.1016/j.scitotenv.2025.180027","DOIUrl":"10.1016/j.scitotenv.2025.180027","url":null,"abstract":"<div><div>Increasing global air pollution necessitates better understanding of Nitrogen (N) deposition impacts on forest ecosystems. Shifts in N availability may influence forest health and productivity while reshaping the rest of its elemental profile. Unlike conventional ground fertilization studies, the current research presents a canopy N application approach, using a conservative N rate for a more realistic simulation of atmospheric deposition scenarios. The experiment, conducted since 2015 in a pure mature Sessile oak (<em>Quercus petraea L.</em>) forest, compares both above and below canopy N application methods against unfertilized control plots. After eight years of continuous N inputs with minimal evidence of growth effects, we explored possible productivity limitations in the forest stand by assessing nutrient dynamics through annual analyses of green and abscised foliage, and soil. Indications of inherent nutrient imbalances were detected as suboptimal leaf N, Phosphorus (P), and Potassium concentrations, with a significantly elevated N:P ratio by one of the N treatments. Soil analysis revealed decreased C:N and inorganic P concentrations under both N treatments compared to the control, with enzymatic stoichiometry suggesting overall P limitation. Additionally, Aluminum levels in the leaves and Ca:Al ratios in the soil indicated potential stress. Our results suggest unfavorable conditions, which may prevent a prosperous environment for the monitored oaks. With these findings we emphasize the importance of comprehensive nutrient status assessments in forest research and management, particularly when evaluating potential future impacts of atmospheric pollutants. Furthermore, we highlight the relevance of distinguishing between the different N application methods for accurate ecological interpretations.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"994 ","pages":"Article 180027"},"PeriodicalIF":8.2,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144571523","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}
引用次数: 0
Radioecological dynamics of primordial radionuclides in rice agroecosystems: A comprehensive assessment of transfer pathways and health risk assessment in the Manavalakurichi NHBRA 水稻农业生态系统中原始放射性核素的放射生态动力学:Manavalakurichi NHBRA转移途径和健康风险评估的综合评估
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2025-07-08 DOI: 10.1016/j.scitotenv.2025.180029
Munawar Suhail Ahmed , Bharathi Santhanabharathi , A. Chandrasekaran , Kumara Perumal Pradhoshini , Marckasagayam Priyadharshini , Murugavel Aarthi , Jalal Khan Rawoof Khan , Thangarasu Ravimanickam , V. Sathish , Van-Hao Duong , Zinnat Ara Begum , Ismail M.M. Rahman , Mohamed Saiyad Musthafa
{"title":"Radioecological dynamics of primordial radionuclides in rice agroecosystems: A comprehensive assessment of transfer pathways and health risk assessment in the Manavalakurichi NHBRA","authors":"Munawar Suhail Ahmed ,&nbsp;Bharathi Santhanabharathi ,&nbsp;A. Chandrasekaran ,&nbsp;Kumara Perumal Pradhoshini ,&nbsp;Marckasagayam Priyadharshini ,&nbsp;Murugavel Aarthi ,&nbsp;Jalal Khan Rawoof Khan ,&nbsp;Thangarasu Ravimanickam ,&nbsp;V. Sathish ,&nbsp;Van-Hao Duong ,&nbsp;Zinnat Ara Begum ,&nbsp;Ismail M.M. Rahman ,&nbsp;Mohamed Saiyad Musthafa","doi":"10.1016/j.scitotenv.2025.180029","DOIUrl":"10.1016/j.scitotenv.2025.180029","url":null,"abstract":"<div><div>This Study provides a comprehensive assessment of radioecological impacts within agricultural systems of the Manavalakurichi Natural High Background Radiation Area in Tamil Nadu, India. The study quantified primordial radionuclides (<sup>238</sup>U, <sup>232</sup>Th, and <sup>40</sup>K) in soil and rice samples while analyzing their transfer dynamics using gamma-ray spectrometry with NaI(Tl) detection systems across multiple sampling locations. Results demonstrated substantially elevated soil radioactivity concentrations, with <sup>238</sup>U ranging from 136 to 468 Bq kg<sup>−1</sup>, <sup>232</sup>Th spanning 399–1059 Bq kg<sup>−1</sup>, and <sup>40</sup>K extending from 621 to 1355 Bq kg<sup>−1</sup>, all significantly exceeding established global reference standards. Rice grains exhibited corresponding contamination patterns with activity concentrations of 7.16–23.61 Bq kg<sup>−1</sup> for <sup>238</sup>U, 22.33–35.68 Bq kg<sup>−1</sup> for <sup>232</sup>Th, and 52.78–70.56 Bq kg<sup>−1</sup> for <sup>40</sup>K. Soil-to-plant transfer efficiency followed the hierarchy <sup>40</sup>K &gt; <sup>238</sup>U &gt; <sup>232</sup>Th, with respective mean transfer factors of 0.059, 0.051, and 0.040. Radiological hazard assessment revealed concerning exposure parameters substantially exceeding safety thresholds. Radium equivalent activity measurements of 784–2049 Bq kg<sup>−1</sup> and absorbed dose rates of 344–904 nGy h<sup>−1</sup> exceeded international safety limits. Annual effective doses reached 1.69–4.43 mSv y<sup>−1</sup> indoors, surpassing public exposure recommendations, while lifetime cancer risk calculations indicated an increase compared to normal radiation environments. Statistical analysis identified strong uranium‑thorium correlations in soil (<em>r</em> = 0.98) and rice (<em>r</em> = 0.88), indicating coupled transport mechanisms. Cluster analysis revealed two distinct spatial groupings with differing contamination patterns controlled by soil properties. This research establishes the first comprehensive framework for radionuclide transfer characterization in the Manavalakurichi region, providing essential predictive capabilities for risk assessment in comparable geological contexts and emphasizing the critical need for systematic radiological monitoring and evidence-based agricultural management interventions.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"994 ","pages":"Article 180029"},"PeriodicalIF":8.2,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144571524","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}
引用次数: 0
Towards sustainable lake restoration 迈向可持续湖泊恢复
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2025-07-08 DOI: 10.1016/j.scitotenv.2025.180001
Olga Tammeorg , Theis Kragh , Gertrud K. Nürnberg , Laurence Carvalho , Brian Huser , Tom Jilbert , Renata Augustyniak-Tunowska , Tallent Dadi , Kurt Friese , Laura Grinberga , Jolanta K. Grochowska , Sigrid Haande , Laura H. Härkönen , Michael Hupfer , Kenneth Irvine , Priyanka Jamwal , Anna-Marie Klamt , Zhengwen Liu , Yvonne McElarney , Maira Mucci , Miquel Lürling
{"title":"Towards sustainable lake restoration","authors":"Olga Tammeorg ,&nbsp;Theis Kragh ,&nbsp;Gertrud K. Nürnberg ,&nbsp;Laurence Carvalho ,&nbsp;Brian Huser ,&nbsp;Tom Jilbert ,&nbsp;Renata Augustyniak-Tunowska ,&nbsp;Tallent Dadi ,&nbsp;Kurt Friese ,&nbsp;Laura Grinberga ,&nbsp;Jolanta K. Grochowska ,&nbsp;Sigrid Haande ,&nbsp;Laura H. Härkönen ,&nbsp;Michael Hupfer ,&nbsp;Kenneth Irvine ,&nbsp;Priyanka Jamwal ,&nbsp;Anna-Marie Klamt ,&nbsp;Zhengwen Liu ,&nbsp;Yvonne McElarney ,&nbsp;Maira Mucci ,&nbsp;Miquel Lürling","doi":"10.1016/j.scitotenv.2025.180001","DOIUrl":"10.1016/j.scitotenv.2025.180001","url":null,"abstract":"<div><div>Sustainable lake restoration has been introduced recently as a strategy to address ecological, economic, and social challenges in nutrient management. The strategy would benefit at least 40 % of the world's lakes through addressing eutrophication, and the impact becomes even broader if we consider the complex nature of eutrophication (its linkage to multiple environmental problems). This approach involves: 1) demonstrating broader social and economic benefits, 2) integrating circular economies, and 3) directly engaging local communities in co-developing restoration goals, targets and monitoring. The current study explores opportunities to advance sustainable lake restoration using a well-established model that fosters interaction among restoration stakeholders. We assessed each model step for sustainability needs, identifying knowledge gaps and key factors for future success. We emphasize the need for a better understanding of the linkages between eutrophication and other environmental problems, proper monitoring programs to demonstrate broader restoration benefits, effective system analysis tools, sustainable nutrient recycling measures and accurate realization, and thorough documentation for life-cycle assessments. Achieving these goals requires significant policy and financing transformations, continuous engagement, and close collaboration among all stakeholders.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"994 ","pages":"Article 180001"},"PeriodicalIF":8.2,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144571518","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}
引用次数: 0
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