Environmental Pollution最新文献

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Genetic sensitivity moderates the effects of joint exposure to air pollution on depression risk: a genome-wide by environment interaction analysis 遗传敏感性调节联合暴露于空气污染对抑郁症风险的影响:全基因组环境相互作用分析
IF 7.3 2区 环境科学与生态学
Environmental Pollution Pub Date : 2025-09-20 DOI: 10.1016/j.envpol.2025.127145
Yaoyao Sun , Xue Lv , Wenjian Bi , Yuyanan Zhang , Zhe Lu , Jing Guo , Zhewei Kang , Xiaoyang Feng , Yundan Liao , Guorui Zhao , Junyuan Sun , Yang Yang , Yunqing Zhu , Rui Yuan , Weihua Yue
{"title":"Genetic sensitivity moderates the effects of joint exposure to air pollution on depression risk: a genome-wide by environment interaction analysis","authors":"Yaoyao Sun ,&nbsp;Xue Lv ,&nbsp;Wenjian Bi ,&nbsp;Yuyanan Zhang ,&nbsp;Zhe Lu ,&nbsp;Jing Guo ,&nbsp;Zhewei Kang ,&nbsp;Xiaoyang Feng ,&nbsp;Yundan Liao ,&nbsp;Guorui Zhao ,&nbsp;Junyuan Sun ,&nbsp;Yang Yang ,&nbsp;Yunqing Zhu ,&nbsp;Rui Yuan ,&nbsp;Weihua Yue","doi":"10.1016/j.envpol.2025.127145","DOIUrl":"10.1016/j.envpol.2025.127145","url":null,"abstract":"<div><div>How ambient air pollutants and genetic factors interact to influence depression risk remains unclear. This study aims to investigate how genetic factors regulate the relationship between air pollution and depression. Using UK Biobank data, an air pollution index was constructed from NO<sub>2</sub>, NO<sub>x</sub>, PM<sub>2.5</sub>, PM<sub>2.5-10</sub> and PM<sub>10</sub> to assess joint exposure. A genome-wide interaction analysis identified 189 air pollution-sensitive SNPs (APS-SNPs) enriched in neurodevelopment. Polygenic scores (PGS) constructed by APS-SNPs showed significant interaction with the air pollution index, NO<sub>2</sub>, NO<sub>x</sub>, PM<sub>2.5</sub> and PM<sub>10</sub> on depression risk (all <em>P</em> &lt; 0.05). Individuals with high PGS had a greater depression risk from air pollution index (<em>OR</em> = 3.17, 95 %<em>CI</em>: 2.63-3.83). Interaction effects between PGS and NO<sub>2</sub> and PM<sub>2.5</sub> were validated in the independent sample. PGS also interacted with greenspace percentage, natural environment percentage, and water percentage. Individuals with high PGS had a significantly lower risk of depression when exposing to more greenspace (buffer 300m, <em>OR</em> = 0.91, 95 %<em>CI</em>: 0.83–0.99; buffer 1000m, <em>OR</em> = 0.90, 95 %<em>CI</em>: 0.83–0.98). Our findings identified that joint exposure to various air pollutants increases depression risk, moderated by genetic factors, and modifying life environments could be an effective intervention for those genetically sensitive to environmental factors.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"385 ","pages":"Article 127145"},"PeriodicalIF":7.3,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089152","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
Environmental radioactivity impacts bioenergetic in tree frog of Fukushima 环境放射性对福岛树蛙生物能的影响
IF 8.9 2区 环境科学与生态学
Environmental Pollution Pub Date : 2025-09-20 DOI: 10.1016/j.envpol.2025.127147
Léa Dasque, Damien Roussel, Jean-Marc Bonzom, Olivier Armant, Clément Car, Kenji Nanba, Hiroko Ishiniwa, Toshihiro Wada, Ikuo Miura, Vanessa Gardette, Virginie Camilleri, Laurent Simon, Marie-Laure Delignette-Muller, Sandrine Frelon, Nathalie Mondy
{"title":"Environmental radioactivity impacts bioenergetic in tree frog of Fukushima","authors":"Léa Dasque, Damien Roussel, Jean-Marc Bonzom, Olivier Armant, Clément Car, Kenji Nanba, Hiroko Ishiniwa, Toshihiro Wada, Ikuo Miura, Vanessa Gardette, Virginie Camilleri, Laurent Simon, Marie-Laure Delignette-Muller, Sandrine Frelon, Nathalie Mondy","doi":"10.1016/j.envpol.2025.127147","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.127147","url":null,"abstract":"The Fukushima Daiichi Nuclear Power Plant accident in 2011 resulted in the contamination in radionuclides of the surrounding environment and led to a chronic exposure of local wildlife to ionizing radiation for over a decade. This study investigates the long-term effects of radiocontamination on the tree frogs (<em>Dryophytes leopardus</em>) in Fukushima Prefecture, focusing on bioenergetics, a major process that governs survival and reproduction. Males tree frogs were collected along a gradient of radiocontamination during the breeding season and their energy metabolism was examined, particularly in trunk muscles, heavily involved in calling, and liver, a key organ for detoxification. Our results show that aerobic metabolism in trunk muscles increases with ionizing radiation dose rate, associated with an increase in mitochondrial oxidative capacity. In contrast, liver tissues exhibit a decrease in aerobic metabolism, compensated by an upregulation of anaerobic processes, likely due to tricarboxylic acid cycle impairment. Additionally, we observed an increase in both the hepatosomatic index and overall body condition with rising ionizing radiation levels, indicating physiological changes. These findings suggest that more than ten years after the initial radiocontamination, metabolic processes and physical condition of tree frogs in Fukushima are still modulated in radiocontaminated areas. This highlights the need for further investigations into the ecological and evolutionary consequences of long-term ionizing radiation exposure in affected wildlife populations.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"74 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089192","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
Beyond Mass Concentration: The Critical Role of Chemical and Biological Compositions and Sources in PM2.5-induced Toxicity in Two Chinese Megacities 质量浓度之外:中国两个特大城市中pm2.5毒性的化学和生物成分及其来源的关键作用
IF 8.9 2区 环境科学与生态学
Environmental Pollution Pub Date : 2025-09-20 DOI: 10.1016/j.envpol.2025.127146
Yihua Wang, Jiawen Xie, Ling Jin, Xiaohao Sun, Lu Zhang, Qian Yang, Xiaosan Luo, Jun Li, Xiangdong Li
{"title":"Beyond Mass Concentration: The Critical Role of Chemical and Biological Compositions and Sources in PM2.5-induced Toxicity in Two Chinese Megacities","authors":"Yihua Wang, Jiawen Xie, Ling Jin, Xiaohao Sun, Lu Zhang, Qian Yang, Xiaosan Luo, Jun Li, Xiangdong Li","doi":"10.1016/j.envpol.2025.127146","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.127146","url":null,"abstract":"Studies have established evidence between the chemical composition of PM<sub>2.5</sub> and its toxic effects, yet the toxicological contributions of biological components like endotoxins remain understudied. To address this gap, we developed an integrated assessment combining <em>in vitro</em> mixture-toxicity assays and source apportionment modeling. This approach quantifies the contributions of endotoxins, trace metals, and polycyclic aromatic hydrocarbons (PAHs) to PM<sub>2.5</sub>-induced intracellular oxidative stress and identifies source-specific toxicity patterns across six sites in Nanjing and Guangzhou, China. Our analysis revealed significant spatial gradients in PM<sub>2.5</sub>-induced toxicity correlated with anthropogenic activities. In Nanjing, suburban-industrial PM<sub>2.5</sub> exhibited double the toxicity of rural samples, while urban and semi-rural industrial sites in Guangzhou showed double the toxicity of the suburban area. These patterns suggest that reduced exposure to anthropogenic emissions corresponds to lower PM<sub>2.5</sub>-induced toxicity, highlighting anthropogenic contributions as key toxic drivers. Although endotoxins, trace metals, and PAHs constituted approximately 2.23% of PM<sub>2.5</sub> mass, they accounted for 35.9–56.9% of total reactive oxygen species (ROS) generation, with trace metals as the dominant contributor (31.6–46.7%), followed by endotoxins (4.24–12.2%) and PAHs (0.0218–0.135%). Source apportionment revealed dominant regional toxic drivers: fugitive dust (23.2–24.6%) and combustion (19.0–20.5%) in Nanjing; while vehicle (19.8%), industrial (18.4%), combustion (18.5%) and biological (20.0%) emissions in Guangzhou. Notably, biological emissions contributed 10.3–20.0% of total PM<sub>2.5</sub>-induced toxicity. These findings suggest that PM<sub>2.5</sub>-induced toxicity depends more on bioactive constituents than total mass concentration, emphasizing the need for toxicity-oriented air quality regulations, especially regarding bioaerosols, to supplement mass-based air quality standards.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"31 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089153","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
A simplified landscape-based approach for including agronomical and ecological characteristic in pesticide risk assessments for terrestrial vertebrates 陆生脊椎动物农药风险评估中包含农学和生态学特征的基于景观的简化方法
IF 7.3 2区 环境科学与生态学
Environmental Pollution Pub Date : 2025-09-20 DOI: 10.1016/j.envpol.2025.127142
Awot George Ukbamichael , Thomas Sagredo , Erik Urionabarrenetxea , Manu Soto , Jose V. Tarazona
{"title":"A simplified landscape-based approach for including agronomical and ecological characteristic in pesticide risk assessments for terrestrial vertebrates","authors":"Awot George Ukbamichael ,&nbsp;Thomas Sagredo ,&nbsp;Erik Urionabarrenetxea ,&nbsp;Manu Soto ,&nbsp;Jose V. Tarazona","doi":"10.1016/j.envpol.2025.127142","DOIUrl":"10.1016/j.envpol.2025.127142","url":null,"abstract":"<div><div>Pesticides have played a crucial role in enhancing food production, although their intensive application poses significant threats to ecosystems and may cause harmful effects on non-target organisms, which are often inadequately addressed by current risk assessment methods. This study introduces a novel approach by combining data from regulatory reports with a meta-analysis to derive dose-response curves for population-relevant parameters. These curves are then integrated into a simplified population dynamics model to estimate the potential population-level effects of combined pesticide exposure on terrestrial vertebrates in Mediterranean agricultural landscapes, with a focus on vineyards in Beaujolais, France, a semi-continental region with Mediterranean influence. The model has been applied as a proof of concept to the pesticides folpet and pirimicarb, estimating the population declines linked to the expected effects on reproductive and survival rates. Folpet was found to have a more severe impact on mammal populations, while pirimicarb primarily affected birds. Additionally, the timing of pesticide application was crucial, with early-season applications of pirimicarb resulting in higher declines compared to late-season treatments. Moreover, the combined use of both pesticides resulted in effects that were not captured by single-pesticide assessments. The study highlights the benefits of landscape assessments for integrating the impacts of pesticide application schedules in real farming conditions, and offers opportunities for assessing risk mitigation approaches. Although the model is simplified and subject to certain limitations, the findings confirm the possibility for assessing the combined effects of successive applications using the information available from regulatory pesticide risk assessments. This study calls for continued research to better understand and mitigate the environmental risks associated with pesticide use.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"385 ","pages":"Article 127142"},"PeriodicalIF":7.3,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089151","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
Hidden markers of health: how mercury affects gene expression in developing seabirds 健康的隐藏标记:汞如何影响发育中的海鸟的基因表达
IF 7.3 2区 环境科学与生态学
Environmental Pollution Pub Date : 2025-09-20 DOI: 10.1016/j.envpol.2025.127143
Manrico Sebastiano , Olivier Chastel , Paco Bustamante , Marcel Eens , David Costantini
{"title":"Hidden markers of health: how mercury affects gene expression in developing seabirds","authors":"Manrico Sebastiano ,&nbsp;Olivier Chastel ,&nbsp;Paco Bustamante ,&nbsp;Marcel Eens ,&nbsp;David Costantini","doi":"10.1016/j.envpol.2025.127143","DOIUrl":"10.1016/j.envpol.2025.127143","url":null,"abstract":"<div><div>Mercury is a globally recognized environmental contaminant that bioaccumulates and biomagnifies in food webs, thereby causing adverse health effects in both humans and wildlife. While mercury exposure is known to impact several life-history traits in birds, the molecular mechanisms underlying these effects remain poorly investigated. In this study, we examined the association between blood mercury concentrations and the expression of 15 key genes involved in detoxification and oxidative stress regulation in magnificent frigatebird <em>Fregata magnificens</em> chicks from French Guiana. Specifically, we measured the expression of genes encoding glutathione-dependent enzymes (GSTA1, GSTA2, GSTK1, GSTM1, GSTT1_0, GSTT1_1, GPX1, GPX2, GPX3, GSS, GSR_0 and GSR_1), thioredoxin system (TXNRD1 and TXNRD3), and metallothionein (MT1). Our results revealed a significant decrease in GSTA1, GSTA2, and GSTT1_1 expression with increasing mercury concentrations. No significant associations were found for glutathione peroxidases, glutathione synthetase and reductases, thioredoxin reductases, or metallothionein expression. These findings might indicate a potential increase in toxicity and cellular damage due to the lower detoxification of glutathione S-transferases. We emphasize the need for further investigations into species-specific mechanisms of detoxification. Our study supports the utility of gene expression analysis in addition to traditional physiological measurements to assess contaminant induced disruptions.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"385 ","pages":"Article 127143"},"PeriodicalIF":7.3,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089154","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
Effect of pesticide formulation on initial residue levels in crops: a meta-analysis approach 农药配方对作物初始残留水平的影响:一项荟萃分析方法
IF 7.3 2区 环境科学与生态学
Environmental Pollution Pub Date : 2025-09-19 DOI: 10.1016/j.envpol.2025.127140
So-Hee Kim , Hye-Ran Eun , Min-Seok Kim , Hyun-Woo Kim , Ji Won Lee , Hyun Ho Noh
{"title":"Effect of pesticide formulation on initial residue levels in crops: a meta-analysis approach","authors":"So-Hee Kim ,&nbsp;Hye-Ran Eun ,&nbsp;Min-Seok Kim ,&nbsp;Hyun-Woo Kim ,&nbsp;Ji Won Lee ,&nbsp;Hyun Ho Noh","doi":"10.1016/j.envpol.2025.127140","DOIUrl":"10.1016/j.envpol.2025.127140","url":null,"abstract":"<div><div>A meta-analysis was conducted to determine whether pesticide formulation significantly affects the initial residue levels across different crops. Data from pesticide registration trials for three vegetable crops, four fruit crops, and one cereal crop were sourced from the Agricultural Materials Evaluation System database of the Rural Development Administration. After applying inclusion and exclusion criteria, 296 trials for lettuce, 113 for perilla leaves, 232 for green onions, 94 for apples, 206 for peaches, 230 for plums, 75 for apricots, and 144 for brown rice were selected. For each crop, trials using a specific formulation were grouped, the mean residue level and standard deviation were calculated for each group, and the residues from different formulations were then compared within the same crop. The standardized mean difference (SMD) was calculated for each crop using Hedges' <em>g</em>, and study heterogeneity was assessed using Cochran's Q-test and Higgins' I<sup>2</sup>-statistic. The Q values ranged from 1.91 to 12.59 (p &gt; 0.13), and I<sup>2</sup> values remained below 38 %, indicating no significant heterogeneity. A common effect model was then applied, yielding SMDs between 1.088 and 1.525 (95 % confidence interval). Funnel plots and Egger's test confirmed the absence of publication bias. In conclusion, the results showed that variations in pesticide formulation do not significantly affect initial residue levels in crops. The methodology and findings of this meta-analysis may support further investigation into the residual behavior of pesticides and the factors influencing pesticide residues in various crops.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"385 ","pages":"Article 127140"},"PeriodicalIF":7.3,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145084460","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
Secondary degradation of anaerobic-digested and UV-pretreated plastics under cycles of freeze-thaw 厌氧消化和紫外线预处理塑料在冻融循环下的二次降解
IF 7.3 2区 环境科学与生态学
Environmental Pollution Pub Date : 2025-09-19 DOI: 10.1016/j.envpol.2025.127129
Shengwei Zhang , Mengmeng Cao , Yanxia Li , Linshu Jiang , Dazhuang Dong , Xingcai Chen , Xiaoman Jiang , Luoyun Fang
{"title":"Secondary degradation of anaerobic-digested and UV-pretreated plastics under cycles of freeze-thaw","authors":"Shengwei Zhang ,&nbsp;Mengmeng Cao ,&nbsp;Yanxia Li ,&nbsp;Linshu Jiang ,&nbsp;Dazhuang Dong ,&nbsp;Xingcai Chen ,&nbsp;Xiaoman Jiang ,&nbsp;Luoyun Fang","doi":"10.1016/j.envpol.2025.127129","DOIUrl":"10.1016/j.envpol.2025.127129","url":null,"abstract":"<div><div>Cycle of freeze-thaw (CFT) is a typical environmental characteristic in cold regions during the transition from winter to spring, which may drive physical stress acting on the plastics. This study investigated the impacts of CFT on the changes to polyvinyl-chloride (PVC) and polylactic acid (PLA) plastic-film surface, sourced from anaerobic digestion (AD) and AD + UV exposure. The findings showed that under the action of AD+UV, the surface of PVC and PLA plastic-film became yellow, fragile and rough. The consequent CFT process reduced surface yellowing and abundance of oxygen-containing groups on plastic-surface increased during AD and UV exposure, as well as impelled the PLA plastic-film fragmentation. The hydrophobicity of the plastic-film surface was compromised by AD and UV treatment, with partial restoration observed after CFTs. The phenomenon could be attributed to CFT stress stripping away the fragile oxidized surface layer of the plastic-film, as evidenced by the presence of micro/nanoplastics as well as the detection of total dissolved solids (TDS), plastic-additive bisphenol A and increased turbidity in the CFT extracts. The study highlights that CFT stress may be a significant yet often overlooked environmental process that influences the environmental degradation of \"organic fertilizer source\" plastics.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"385 ","pages":"Article 127129"},"PeriodicalIF":7.3,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089158","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
Beyond carrier effects: Polyamide microplastics and TCPP jointly drive physiological toxicity in mussels at environmental concentrations 超越载体效应:聚酰胺微塑料和TCPP共同驱动贻贝在环境浓度下的生理毒性
IF 7.3 2区 环境科学与生态学
Environmental Pollution Pub Date : 2025-09-18 DOI: 10.1016/j.envpol.2025.127136
Zhaowen Chen , Wei Huang , Zhen Zhong , Khor Waiho , Menghong Hu , Youji Wang
{"title":"Beyond carrier effects: Polyamide microplastics and TCPP jointly drive physiological toxicity in mussels at environmental concentrations","authors":"Zhaowen Chen ,&nbsp;Wei Huang ,&nbsp;Zhen Zhong ,&nbsp;Khor Waiho ,&nbsp;Menghong Hu ,&nbsp;Youji Wang","doi":"10.1016/j.envpol.2025.127136","DOIUrl":"10.1016/j.envpol.2025.127136","url":null,"abstract":"<div><div>Marine microplastic pollution is a global problem that has received widespread attention, making the risk assessment of marine microplastics a crucial topic of concern. However, unscientific assessment methods have been widely used in the past, highlighting the necessity to recalibrate the judgment of the ecological risks posed by marine microplastics. In this study, we conducted exposure experiments on the filter-feeding shellfish, thick-shelled mussels (<em>Mytilus coruscus</em>), using ambient concentrations of marine microplastic PA debris compounded with the common organophosphorus flame retardants pollutant, Tris (1-chloro-2-propyl) phosphate (TCPP). The results of our experiments showed that the combined stress of TCPP and PA exhibited an adsorption effect on the physiological toxicity on thick-shell mussel at environmental concentrations rather than a carrier effect, and there was no significant difference in the toxic effects between the current environmental concentration and a predicted environmental concentration in 2050. However, microplastics and TCPP appeared to exert irreversible effects on the digestive glands of mussels, compared to their effects on the gill tissues. The diversity of bacterial populations in the mussels' internal environment was affected, indicating potential ecological consequences.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"385 ","pages":"Article 127136"},"PeriodicalIF":7.3,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145084249","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
Seasonal variations in cadmium mobility in sediment-water systems of algae- and macrophyte-dominated zones in Lake Taihu 太湖藻类和大型植物为主区沉积物-水体系统中镉迁移的季节变化
IF 7.3 2区 环境科学与生态学
Environmental Pollution Pub Date : 2025-09-18 DOI: 10.1016/j.envpol.2025.127139
Zhenhai Liu , Yun Li , Xiaogang Wang
{"title":"Seasonal variations in cadmium mobility in sediment-water systems of algae- and macrophyte-dominated zones in Lake Taihu","authors":"Zhenhai Liu ,&nbsp;Yun Li ,&nbsp;Xiaogang Wang","doi":"10.1016/j.envpol.2025.127139","DOIUrl":"10.1016/j.envpol.2025.127139","url":null,"abstract":"<div><div>Variations in trophic status affect water quality and sediment geochemistry, thereby influencing cadmium (Cd) mobility and its release into the water column. This study conducted seasonal sampling in algae- and macrophyte-dominated zones of Lake Taihu, China, using high-resolution dialysis and multispectral techniques to simultaneously monitor Cd, manganese (Mn), ferrous iron (Fe(II)), and dissolved organic matter (DOM) in sediment pore water. A sudden Cd release was observed in April in eutrophic, algae-dominated sediments, attributed to Cd complexation with tyrosine. Redundancy analysis (RDA) confirmed tyrosine as a key factor driving this Cd release. Multispectral analysis further showed that Cd was stably bound to functional groups in tyrosine-like substances, including aromatic C–H (630 cm<sup>−1</sup>), alcoholic C–O (1150 cm<sup>−1</sup>), phenolic O–H (1350 cm<sup>−1</sup>), alkene C=C (1630 cm<sup>−1</sup>), and aliphatic −COOH (3320 cm<sup>−1</sup>). In summer and autumn, Cd mobility in algae-dominated areas was mainly regulated by cyanobacterial uptake and redox reactions involving iron–manganese oxides. In macrophyte zones, DOM influenced soluble Cd in winter, while lower Cd levels in summer and autumn likely resulted from adsorption onto iron–manganese oxide–rich sediments, enhanced by photochemical processes and rhizosphere oxidation. Overall, Cd contamination in algae-dominated systems warrants greater attention.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"385 ","pages":"Article 127139"},"PeriodicalIF":7.3,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145084461","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
Impacts of different types of wastewater discharge on plankton community structure in the receiving rivers of the Yangtze River 不同类型污水排放对长江受纳河流浮游生物群落结构的影响
IF 7.3 2区 环境科学与生态学
Environmental Pollution Pub Date : 2025-09-18 DOI: 10.1016/j.envpol.2025.127137
Rui Bian , Shier Huang , Xiaofeng Cao , Weixiao Qi , Jianfeng Peng , Huijuan Liu , Min Chen , Yufeng Chen , Jiuhui Qu
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