Environmental Pollution最新文献_第10页

Pollution and partitioning of neonicotinoid insecticides in free-grazing ducks and their eggs: Implications for human health 自由放牧鸭子及其卵中新烟碱类杀虫剂的污染和分馏：对人类健康的影响

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-03-20 DOI: 10.1016/j.envpol.2025.126099

Collins Nimako , Kraisiri Khidkhan , Sittinee Kulprasertsri , Saranya Poapolathep , Paphatsara Khunlert , Yared B. Yohannes , Yoshinori Ikenaka , Shouta M.M. Nakayama , Mayumi Ishizuka , Amnart Poapolathep

{"title":"Pollution and partitioning of neonicotinoid insecticides in free-grazing ducks and their eggs: Implications for human health","authors":"Collins Nimako , Kraisiri Khidkhan , Sittinee Kulprasertsri , Saranya Poapolathep , Paphatsara Khunlert , Yared B. Yohannes , Yoshinori Ikenaka , Shouta M.M. Nakayama , Mayumi Ishizuka , Amnart Poapolathep","doi":"10.1016/j.envpol.2025.126099","DOIUrl":"10.1016/j.envpol.2025.126099","url":null,"abstract":"<div><div>Neonicotinoid insecticides are used extensively in many pest control schemes across the globe; but little is known about their impacts on free-grazing domestic birds and the quality of meat or eggs produced from such birds. This study assessed the pollution and partitioning of neonicotinoids in serum and eggs of free-grazing ducks from 5 provinces of Thailand and elucidated the associated human health implications. Biological samples (duck serum, egg albumins, and egg yolks) and environmental samples (soil, water, feed) were collected from 9 duck farms in Thailand and subjected to LC/MS/MS analysis. Out of 6 neonicotinoid compounds targeted, five were detected in duck serum. Imidacloprid had the greatest median concentration of 1.4 ng/mL and the highest detection frequency (df) of 85.8 % in the ducks′ serum, followed by acetamiprid (median concentration = 0.4 ng/mL; df = 2.8 %), clothianidin (median concentration = 0.2 ng/mL; df = 9.4 %) or thiamethoxam (median concentration = 0.2 ng/mL; df = 7.5 %) and dinotefuran (only one sample was contaminated with 6.3 ng/mL of dinotefuran). The neonicotinoids were similarly detected in soil, water, and feed samples obtained from the duck farms, suggesting that the ducks were exposed to the insecticides from the nearby agricultural fields. The neonicotinoid compounds selectively accumulated in the albumin of duck eggs compared to yolk. The median concentration ratios of albumin to yolk obtained for imidacloprid, dinotefuran, thiamethoxam, clothianidin, and acetamiprid were 694, 463, 458, 382, and 263, respectively. However, upon human health risk analysis, levels of neonicotinoids detected in duck eggs were not found to present any appreciable risks to duck egg consumers.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"373 ","pages":"Article 126099"},"PeriodicalIF":7.6,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143665922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

First evidence in the association of phenolic endocrine-disrupting chemicals with secondary non-alcoholic fatty liver disease: A case-control study in South China

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-03-19 DOI: 10.1016/j.envpol.2025.126086

Henglin Zhang , Shuai Feng , Shiming Song, Qing Zhao, Yanxia Gao, Tao Zhang

{"title":"First evidence in the association of phenolic endocrine-disrupting chemicals with secondary non-alcoholic fatty liver disease: A case-control study in South China","authors":"Henglin Zhang , Shuai Feng , Shiming Song, Qing Zhao, Yanxia Gao, Tao Zhang","doi":"10.1016/j.envpol.2025.126086","DOIUrl":"10.1016/j.envpol.2025.126086","url":null,"abstract":"<div><div>The presence of phenolic endocrine disrupting chemicals (EDCs) in patients with secondary non-alcoholic fatty liver disease (S-NAFLD) and their associations with S-NAFLD incidence have not been previously documented. In this study, serum concentrations of 32 phenolic EDCs, including parabens, benzophenone-type UV-filters, bisphenols, and bisphenol A diglycidyl ether derivatives, were detected in patients with S-NAFLD as well as healthy population from South China. These target EDCs were ubiquitous in serum samples from both cohorts. Interestingly, significantly higher (<em>p</em> < 0.05) serum levels of most analytes were detected in individuals with S-NAFLD compared to those in the healthy population. Through multiple modeling analyses, we observed that parabens and bisphenols mixtures were positively associated with S-NAFLD incidence. A list of high-risk EDCs for S-NAFLD-related diseases was identified, including propyl paraben (PrP), butyl paraben (BuP), bisphenol A (BPA), and bisphenol AP (BPAP). Furthermore, significant positive correlations were found between the serum levels of these high-risk analytes and liver clinic indices. To the best of our knowledge, this study firstly examined the serum levels of multiple phenolic EDCs in patients with S-NAFLD, aiming to provide novel insights into high-risk EDCs associated with S-NAFLD incidence and their associations with clinic liver indices.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"373 ","pages":"Article 126086"},"PeriodicalIF":7.6,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

What a load of rubbish: The impact of anthropogenic litter on urban freshwater diversity

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-03-19 DOI: 10.1016/j.envpol.2025.126097

Victoria S. Milner , Matthew J. Hill , Kieran J. Gething , Summer B. Cunningham

{"title":"What a load of rubbish: The impact of anthropogenic litter on urban freshwater diversity","authors":"Victoria S. Milner , Matthew J. Hill , Kieran J. Gething , Summer B. Cunningham","doi":"10.1016/j.envpol.2025.126097","DOIUrl":"10.1016/j.envpol.2025.126097","url":null,"abstract":"<div><div>The abundance of anthropogenic litter (AL) in aquatic environments is an increasing global problem. Most research on the effects of AL has focussed on marine environments, with research examining the ecological effects of AL in freshwater ecosystems largely missing. Our study examines the impacts of AL on macroinvertebrate diversity in two urban freshwater systems in West Yorkshire, in the United Kingdom. Two urban river and two canal reaches were surveyed for macroinvertebrates from the bed sediments of riffles (in a river), open water and macrophyte habitats (in a canal), and AL items (from both freshwaters). We found higher local taxonomic richness and differences in community composition in 1) the bed sediments of riffles compared to AL items within urban rivers, and 2) open water and emergent vegetation than AL items within our canal reaches. Taxonomic richness was higher on metals and plastics in urban rivers than canal reaches, and macroinvertebrate community composition was distinct between AL types (e.g., fabrics and metals, plastics and polystyrenes), possibly due to differences in structure, shape and texture. AL items in both urban freshwaters supported unique taxa, indicating that AL items may provide a habitat for macroinvertebrates where physical habitat complexity is poor. The restoration of natural physical habitat and removal of AL should be a key priority for freshwater conservation. However, rinsing AL items prior to removal during litter clean-ups is essential to minimise any potential macroinvertebrate loss. In urban freshwaters, physical habitat could be increased by gravel augmentation, installing large wood or boulders.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"373 ","pages":"Article 126097"},"PeriodicalIF":7.6,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Latitudinal gradients of snow contamination in the Rocky Mountains associated with anthropogenic sources

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-03-19 DOI: 10.1016/j.envpol.2025.126094

Monica M. Arienzo , Kelly E. Gleason , Graham A. Sexstone , Mae Sexauer Gustin , Melissa R. Schwan , Nicole Choma , Sarrah M. Dunham-Cheatham , Joseph R. McConnell , Peter J. Weisberg , Adam Csank

{"title":"Latitudinal gradients of snow contamination in the Rocky Mountains associated with anthropogenic sources","authors":"Monica M. Arienzo , Kelly E. Gleason , Graham A. Sexstone , Mae Sexauer Gustin , Melissa R. Schwan , Nicole Choma , Sarrah M. Dunham-Cheatham , Joseph R. McConnell , Peter J. Weisberg , Adam Csank","doi":"10.1016/j.envpol.2025.126094","DOIUrl":"10.1016/j.envpol.2025.126094","url":null,"abstract":"<div><div>Seasonal snow is an important source of drinking water and recreation, and for agriculture in the Rocky Mountain region. Monitoring snow-water quality can inform on the effects to the albedo and energy balance of the snowpack, and the sources of natural and anthropogenic aerosol and gases. This study analyzed metals in the seasonal snowpack from water year (WY) 2018 for 49 sites. Calcium, lanthanum, and cerium concentrations support the importance of mineral dust to the southern Rocky Mountains. Mercury (Hg), zinc (Zn), and cadmium (Cd) concentrations showed a similar spatial pattern to mineral dust, whereas antimony (Sb) concentrations were highest in the northern Rocky Mountains. To assess the relative contributions from dust versus anthropogenic contaminant sources, enrichment factors (EF) were calculated, with values above 10 indicating anthropogenic contamination. For Cd, Hg, Sb, and Zn, EF values exceeded 10 at northern sites. These observations were compared to spatial trends of EF values of Hg from WY2009 to WY2018, regional monitoring networks, and back trajectory analyses. The agreement between these datasets revealed temporally consistent contaminant sources and/or transport processes to the northern Rocky Mountains snowpack. Sources include current and historical mining and smelting in the region. Strategies to limit the emissions of these metals to the Northern Rockies could benefit from focusing on remediation of contaminated sites, and continued monitoring and mitigation of active mining and smelting.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"373 ","pages":"Article 126094"},"PeriodicalIF":7.6,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143653957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Synchronous vanadium bio-reduction/detoxification/recovery and nitrogen attenuation in a membrane aerated biofilm reactor

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-03-19 DOI: 10.1016/j.envpol.2025.126095

Zhiye Sun , Baoan Li , Jun Liu

{"title":"Synchronous vanadium bio-reduction/detoxification/recovery and nitrogen attenuation in a membrane aerated biofilm reactor","authors":"Zhiye Sun , Baoan Li , Jun Liu","doi":"10.1016/j.envpol.2025.126095","DOIUrl":"10.1016/j.envpol.2025.126095","url":null,"abstract":"<div><div>The presence of both pentavalent vanadium [V(Ⅴ)] and nitrogen in wastewaters from vanadium smelting poses significant environmental challenges. However, it remains little in the way of continuous flow biological reactor to concurrently eliminated V(Ⅴ) and nitrogen in wastewaters. Herein, membrane-aerated biofilm reactor (MABR) system was designed to achieve simultaneous nitrification and denitrification (SND) alongside biological reduction, detoxification, and recovery of vanadium. Vanadium and nitrogen removal performances, solid-state characterization, microbial compositions and functional genes, and the mechanism related to the metabolism of vanadium and nitrogen were illuminated. Notably, we identified a potential role for biofilm-derived “secretion” in the transformation of V(Ⅴ) and nitrogen. Our findings revealed that the system achieved SND efficiency of 98.00 ± 0.57 % and removed 91.10 ± 3.60 % of total vanadium (TV) even at high influent V(Ⅴ) concentrations in continuous flow stage. Batch experiments implied that the conversion of NH<sub>4</sub><sup>+</sup>-N was the limiting process of nitrogen removal in MABR system, and the extracellular polymeric substances (EPS) might play an important role in the conversion of V(Ⅴ) and nitrogen. V(Ⅴ) was reduced to V(Ⅳ), which was immobilized to biofilm and “secretion” by microbial surface functional groups, including C-O, O-C=O and -OH. <em>Acinetobacter</em>, <em>Dechlorobacter</em>, <em>Denitratisoma</em> and <em>Nitrospira</em> were verified as microbes associated with V(Ⅴ) and nitrogen metabolism. The abundance of functional genes pertaining to electron donor, electron transport, and electron acceptor systems increased under high V(V) stimulation. Collectively, the cooperation of biofilm and “secretion” ensured the intensive removal of vanadium and nitrogen. This study provides new insights into the concurrent removal of heavy metal and environmental nutrient.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"372 ","pages":"Article 126095"},"PeriodicalIF":7.6,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Settling velocities of microplastics with different shapes in sediment-water mixtures

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-03-19 DOI: 10.1016/j.envpol.2025.126071

Mirco Mancini , Simona Francalanci , Teresa Serra , Jordi Colomer , Luca Solari

{"title":"Settling velocities of microplastics with different shapes in sediment-water mixtures","authors":"Mirco Mancini , Simona Francalanci , Teresa Serra , Jordi Colomer , Luca Solari","doi":"10.1016/j.envpol.2025.126071","DOIUrl":"10.1016/j.envpol.2025.126071","url":null,"abstract":"<div><div>The widespread distribution of microplastics (MP) in aquatic systems highlights the need for a clear understanding of how they are transported and accumulate on the bottom of water bodies. Developing predictive models for MP dispersion, sedimentation, and bioaccumulation is crucial for informing regulatory decisions and mitigating the impact of MP and related pollutants. Among the key parameters, MP settling velocity is considered the most critical for predicting their behavior in aquatic environments. Recent studies suggest an intricate and not fully understood relationship between MP settling and sediment dynamics. To date, none of the current models can predict how sediment modifies MP settling velocity. Therefore, previous understanding on MP settling does not fully account for the sedimentation of MP in aquatic ecosystems, where sediment suspension is present. This study provides further evidence that the presence of sediment alters the sedimentation rate of MP based on their shape, offering a quantitative estimate of this interaction. For the first time, the effects sediment interaction has on MP sinking trajectories and inclinations are presented. A preliminary, modified version of an existing formula is proposed to estimate MP settling velocity in the presence of sediment, laying the groundwork for more accurate predictive models of MP transport in aquatic environments.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"372 ","pages":"Article 126071"},"PeriodicalIF":7.6,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Oxygenated volatile organic compounds in Beijing: Characteristics, chemical reactivity, and source identification

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-03-18 DOI: 10.1016/j.envpol.2025.126065

Gen Zhang , Xiaoqi Zhou , Yifeng Sun , Chong Han , Jiyun Xian , Changxu Mu , Wanyun Xu , Linlin Liang

{"title":"Oxygenated volatile organic compounds in Beijing: Characteristics, chemical reactivity, and source identification","authors":"Gen Zhang , Xiaoqi Zhou , Yifeng Sun , Chong Han , Jiyun Xian , Changxu Mu , Wanyun Xu , Linlin Liang","doi":"10.1016/j.envpol.2025.126065","DOIUrl":"10.1016/j.envpol.2025.126065","url":null,"abstract":"<div><div>As important components of volatile organic compounds (VOCs), oxygenated VOCs (OVOCs) play a crucial role in the photochemical formation of ozone (O<sub>3</sub>), especially in the polluted areas in the North China Plain (NCP). However, their seasonal characteristics and sources are not well understood. In this study, one-year measurements of 10 typical OVOCs were conducted through proton-transfer reaction time-of-flight mass spectrometry (PTR-ToF-MS) at an urban site (39.95° N, 116.32° E, 96 m a.s.l.) in Beijing. Aldehydes and alcohols were the most abundant types of OVOCs in the entire year, with mean concentrations of 16.3 ppbv and 15.9 ppbv, respectively, and mean proportions of 33.8 % and 32.4 % of the total. Formaldehyde and ethanol sustained the highest concentrations throughout the year, with mean annual concentrations of 13.5 ppbv and 10.8 ppbv, respectively. The results indicated that the concentrations of OVOCs were highest in the summer, along with the maximum O<sub>3</sub>-formation potentials and hydroxyl radical (•OH) reactivity values of 83.5 ppbv and 2.8 s<sup>−1</sup>, respectively. Results from the source apportionment of OVOCs based on multiple linear regression models indicated that secondary productions were the predominant source in summer. In particular, the secondary sources of aldehydes represented by CH<sub>2</sub>O and acetaldehyde accounted for 36.7 % and 51.4 % of the total, respectively. This study determined the concentrations and photochemical generation of OVOCs in different seasons, providing a basis for O<sub>3</sub> pollution control in urban areas of Beijing.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"373 ","pages":"Article 126065"},"PeriodicalIF":7.6,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143653546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Letter to the editor: An investigation of microbial groundwater contamination seasonality and extreme weather event interruptions using “big data”, time-series analyses, and unsupervised machine learning

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-03-18 DOI: 10.1016/j.envpol.2025.126080

T. Triwiyanto

引用次数: 0

Impact of urban green areas on air quality: An integrated analysis in the metropolitan area of São Paulo

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-03-18 DOI: 10.1016/j.envpol.2025.126082

Maria Carla Queiroz Diniz Oliveira , Regina Maura de Miranda , Maria de Fátima Andrade , Prashant Kumar

{"title":"Impact of urban green areas on air quality: An integrated analysis in the metropolitan area of São Paulo","authors":"Maria Carla Queiroz Diniz Oliveira , Regina Maura de Miranda , Maria de Fátima Andrade , Prashant Kumar","doi":"10.1016/j.envpol.2025.126082","DOIUrl":"10.1016/j.envpol.2025.126082","url":null,"abstract":"<div><div>Cities must be prepared to improve the quality of life, including exposure to air pollutants, for their residents as urban populations continue to grow. Green infrastructure and green areas have proven increasingly important in tackling this challenge. This study examined the relationship between urban green spaces and air pollution in the São Paulo Metropolitan Area. Using PM<sub>10</sub> and PM<sub>2.5</sub> as indicators of atmospheric pollutants and NDVI and NDBI to evaluate green areas and building density, statistical tools such as cluster analysis and Sen's Slope test were applied, complemented by visual analyses with temporal heat maps. The results indicated a general reduction in PM<sub>2.5</sub> and PM<sub>10</sub> concentrations from 2014 to 2023, with NDVI increasing until 2021 and then decreasing, possibly due to real estate speculation. Regions with higher NDVI showed 50 % lower PM concentrations compared with industrial and high-traffic areas. The Sen's Slope analysis outlined the influence of tree-planting public policies on reducing pollutant levels. These findings the ongoing importance of research on the interaction between green areas and urban air quality to inform decision-makers.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"372 ","pages":"Article 126082"},"PeriodicalIF":7.6,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143653547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Partitioning of various uranium forms and quantification of the influencing factors to their behaviors in estuarine sediments

IF 7.6 2区环境科学与生态学

Environmental Pollution Pub Date : 2025-03-18 DOI: 10.1016/j.envpol.2025.126087

Wenwen Zhang , Xihuang Zhong , Xueyan Jiang , Tong Zhang , Chunxia Meng

{"title":"Partitioning of various uranium forms and quantification of the influencing factors to their behaviors in estuarine sediments","authors":"Wenwen Zhang , Xihuang Zhong , Xueyan Jiang , Tong Zhang , Chunxia Meng","doi":"10.1016/j.envpol.2025.126087","DOIUrl":"10.1016/j.envpol.2025.126087","url":null,"abstract":"<div><div>Compared with the extensive research on the behaviors of uranium (U), the contribution rates of different influencing factors have been relatively less evaluated. In this study, the biogeochemical behaviors of U in the Yellow River Estuarine Wetland (YREW) were investigated through sequential extraction procedures. The contribution of different influencing factors to U biogeochemical behaviors were quantified by the method of multiple least-squares linear regression. The results indicate that uranium in sediments is predominantly in residual form (U<sub>F5</sub>, making up 71 % of the total U) which is inert during biogeochemical processes. The following order of the other four active U forms is: carbonate bounded form (U<sub>F2</sub>) > iron/manganese oxides bounded form (U<sub>F3</sub>) > organic matter or sulfide bounded form (U<sub>F4</sub>) > exchangeable form (U<sub>F1</sub>). Compared with the content of the Yellow River suspended particulate matters (SPMs), U<sub>F1</sub> and U<sub>F3</sub> exhibited releasing from the sediment, while U<sub>F2</sub> and U<sub>F4</sub> became enriched in YREW. The results of multiple least-squares linear regression indicate that the biogeochemical behaviors of U are mostly controlled by REDOX (74 %), followed by organic matter (12.9 %), pH (7.7 %), particle size (3.5 %), and salinity (1.9 %).</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"372 ","pages":"Article 126087"},"PeriodicalIF":7.6,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143639981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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