Environmental Pollution最新文献

{"title":"Fluxes, residence times, and the budget of microplastics in the Curonian Lagoon","authors":"Sajjad Abbasi, Neda Hashemi, Viktorija Sabaliauskaitė, Nikolaos Evangeliou, Nerijus Dzingelevičius, Arūnas Balčiūnas, Reda Dzingelevičienė","doi":"10.1016/j.envpol.2025.126289","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.126289","url":null,"abstract":"This study examines the distribution and abundance of microplastics (MPs) in the Europe’s largest coastal lagoon, Curonian Lagoon, and adjacent Baltic Sea, focusing on water, surface sediment, and atmospheric deposition. Fibrous MPs, predominantly 1,000–5,000 μm in size, were the most prevalent across all environments. White/transparent MPs dominated sediment and atmospheric deposition, while blue/green MPs were most abundant in water. Low-density polymers accounted for 70% of MPs in water, whereas high-density polymers were dominant in sediment (62%), with equal proportions found in atmospheric deposition. The average MP concentration was higher in the lagoon (1.7 ± 1.2 MP L^-1) compared to the Baltic Sea (1.3 ± 0.4 MP L^-1), with an estimated 66.7 × 10⁹ MPs year^-1. flowing from the lagoon into the sea. Atmospheric deposition introduced a substantial MP influx, estimated at 27.8 × 10¹² MPs year^-1, exceeding the river influx of 20.7 × 10⁹ MP year^-1. MP deposition was higher in terrestrial environments (72.5 MP m^-2 day^-1) than in aquatic environments (60.4 MP m^-2 day^-1 in the sea and 48.3 MP m^-2 day^-1 in the lagoon). The estimated MP budget in lagoon water was 10.8 × 10⁹ MP particles, with a residence time of approximately 27 days. MP concentrations in surface sediment (405.7 ± 192.9 MP kg^-1) indicate long-term accumulation, suggesting substantial MP deposition in lagoon sediments. Atmospheric transport modeling (FLEXPART) identified Europe, Russia, and oceanic sources as key contributors, alongside local inputs from agriculture, sea spray, and road dust. Understanding MP dynamics in coastal ecosystems is urgent to inform mitigation strategies, regulatory policies, and risk assessments, particularly given the long-term accumulation in sediments and potential for ecological harm.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"41 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853217","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}

{"title":"Climate change, mercury pollution, and global ecology","authors":"Michael S. Bank, Zoyne Pedrero Zayas, Vernon Somerset, Lynwill G. Martin, Milena Horvat","doi":"10.1016/j.envpol.2025.126284","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.126284","url":null,"abstract":"<h2>Section snippets</h2><section><section><h2>Uncited reference</h2>Ishikawa, 2018; Minamata Convention on Mercury, 2024; Pang et al., 2022; Schuster et al., 2018.</section></section><section><section><h2>Declaration of Competing Interest</h2>☒ The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.</section></section><section><section><h2>Acknowledgments</h2>We are grateful to Dr. Baohua Gu (retired) for all his efforts related to the special issue. This project has received funding from the European Union’s Horizon 2020 research and innovation MSCA-RISE program under grant agreement No. <span><span>101007962</span><svg aria-label=\"Opens in new window\" focusable=\"false\" height=\"20\" viewbox=\"0 0 8 8\"><path d=\"M1.12949 2.1072V1H7V6.85795H5.89111V2.90281L0.784057 8L0 7.21635L5.11902 2.1072H1.12949Z\"></path></svg></span> (merfish.eu) to MSB, Z.P-Z, and MH and the EU Marie Sklodowska-Curie GMOS-Train grant agreement no. 860497. We are grateful to the editorial staff at <em>Environmental Pollution</em> and to all the authors, readers, and peer reviewers of this SI for their kind</section></section>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"43 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143857853","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}

{"title":"Fluorinated liquid-crystal monomers distribution in paired urine from mothers and infants","authors":"Runhui Yang ,&nbsp;Yanli Zhang ,&nbsp;Qun Gao ,&nbsp;Chenhui Sang ,&nbsp;Yumin Niu ,&nbsp;Shiyu Du ,&nbsp;Bing Shao","doi":"10.1016/j.envpol.2025.126283","DOIUrl":"10.1016/j.envpol.2025.126283","url":null,"abstract":"<div><div>Fluorinated liquid-crystal monomers (FLCMs) are widespread environmental contaminants with potential endocrine-disrupting effects. Infants are particularly vulnerable, yet their exposure remains unclear. This study analyzed FLCMs in urine samples from 190 paired mothers and infants in Beijing, detecting 34 and 35 FLCMs, respectively. Median creatinine-corrected concentrations were 1.83 μg/g (unadjusted concentrations: 1.28 ng/mL) for mothers and 3.28 μg/g (0.60 ng/mL) for infants. 1-butoxy-2,3-difluoro-4-(trans-4-propylcyclohexyl) benzene (BDPrB) and 1-ethyl-4-[(4-fluorophenyl) ethynyl] benzene (EFPEB) were identified as the primary detected contaminants. A significant positive correlation in urine concentrations between mothers and infants was observed only for 2′-Fluoro-4″-propyl-[1,1':4′,1″-terphenyl]-4-carbonitrile (FPTC) (r_s = 0.23, <em>p</em> = 0.023). Certain FLCMs were associated with infant feeding patterns, maternal parity, and environmental exposure, including dust and cleaning frequency (<em>p</em> &lt; 0.05). The results of the study showed that the median estimated daily intakes (EDIs) of ∑FLCMs for mothers and infants were 526 and 425 ng/kg bw/day, respectively, with no significant difference between them (<em>p</em> &gt; 0.05). Further stratification of the data by sex revealed that for male infants, the EDI values for BDPrB and EFPEB were greater (<em>p</em> &lt; 0.05). These findings emphasize the need for greater research on the health effects of FLCMs on infants, particularly considering gender differences.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"375 ","pages":"Article 126283"},"PeriodicalIF":7.6,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853222","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}

{"title":"Manure input propagated antibiotic resistance genes and virulence factors in soils by regulating microbial carbon metabolism","authors":"Taobing Yu, Yangkang Huang, Yicong Zhang, Shang Wang, Xiquan Wang, Ying Jiang, Huadong Zang, Zhaohai Zeng, Yadong Yang","doi":"10.1016/j.envpol.2025.126293","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.126293","url":null,"abstract":"Antibiotic resistance genes (ARGs) and virulence factors (VFs) in soils represent a significant threat to ecological security and human health. The carbon-rich soil formed by manure fertilization provides an energy source for soil microbes. However, we still know little about how microbial-dominated carbon metabolism affects ARGs and VFs proliferation in soils subjected to long-term fertilization and irrigation practices in wheat-maize system. Here, we investigated soil microbial carbon metabolism, ARGs and VFs distribution, and microbial composition in soils under 9-year of different fertilization and irrigation managements during wheat growing period. Results showed that manure (M) increased total abundance of soil ARGs by 5.9%-8.0% and 2.1%-4.8% and VFs by 5.4%-7.5% and 2.0%-4.9% compared to no fertilizer (CK) and NPK fertilizer (C), respectively, regardless of irrigation. M enriched more number of ARGs and VFs types, and increased abundance of host microbes involved in carbon fixation and carbon degradation, such as <em>Streptomyces</em>, <em>Lysobacter</em> and <em>Agromyces</em>. M increased abundance of carbohydrate-active enzymes (CAZymes) and carbon cycle functional pathways, as well as microbial carbon metabolism capacity. Partial least squares path modeling (PLS-PM) and correlation analysis showed that microbial diversity, CAZymes, carbon cycle functional pathways (particularly carbon fixation and degradation) and microbial carbon metabolism capacity of microbial community had direct positive effects on the proliferation and spread of ARGs and VFs. In conclusion, our results highlight the importance of microbial mediated carbon metabolism in driving the dissemination of ARGs and VFs in soils under long-term manure application.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"25 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858060","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}

{"title":"Association between outdoor artificial light at night and executive function among depressive patients: the mediating effect of sleep timing","authors":"Shanshan Shao ,&nbsp;Tianqin Xie ,&nbsp;Lei Zhang ,&nbsp;Hui Kong ,&nbsp;Jie Fang ,&nbsp;Ting Wang ,&nbsp;Yu Zhang ,&nbsp;Jiakuai Yu ,&nbsp;Peng Zhu ,&nbsp;Daomin Zhu","doi":"10.1016/j.envpol.2025.126274","DOIUrl":"10.1016/j.envpol.2025.126274","url":null,"abstract":"<div><div>Recent evidence highlights the potential impact of outdoor artificial light at night (ALAN) on sleep, and later sleep timing may be a risk factor for executive dysfunction. Depression is commonly associated with executive dysfunction, which significantly compromise prognosis. However, it remains unclear whether sleep-wake phase mediate the effects of outdoor ALAN on executive function. We assessed whether sleep timing mediated the association between outdoor ALAN and executive function among depressed patients. Between 2017 and 2023, 798 inpatients with depression were enrolled from the Fourth People's Hospital of Hefei. The outdoor ALAN exposure of patients was estimated using satellite images. All participants were assessed for sleep conditions using the Pittsburgh Sleep Quality Index (PSQI) and for executive function using the Behavior Rating Inventory of Executive Function–Adult Version (BRIEF-A). We employed multifactor linear regression models to investigate the association between outdoor ALAN exposure and executive function, adjusted for potential confounders. Additionally, mediation models were utilized to explore the mediating role of sleep timing in this association. Our study found that greater ALAN exposure was significantly associated with higher executive function scores. The exposure of participants at 12 months prior to enrollment had the greatest effect, for each interquartile range (IQR 29.93 nW/cm²/sr) increase in outdoor ALAN exposure, the Global Executive Composite (GEC) scores increased by 6.12 (95 % confidence interval [CI]: 2.49, 9.74). Mediation analysis indicated that sleep midpoint significantly mediated the relationship between outdoor ALAN and executive function, with a mediated proportion of 22.39 %. The study suggested that outdoor ALAN exposure has adverse effects on executive function in depressed patients, and sleep-wake phase may mediate the association between outdoor ALAN exposure and executive function.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"374 ","pages":"Article 126274"},"PeriodicalIF":7.6,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853218","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}

{"title":"Exposure to microplastics and nanoplastics induces transcriptional and physiological alterations, and immune responses in sea cucumber, Holothuria leucospilota","authors":"M.U.S. Maldeniya, Yang Liu, Bo Ma, Jiayue Yin, Shuyang Wen, Lihong Yuan, Peng Luo","doi":"10.1016/j.envpol.2025.126291","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.126291","url":null,"abstract":"Microplastics (MPs) and nanoplastics (NPs) are pervasive pollutants widely distributed across aquatic ecosystems. They have gained significant attention due to their potential adverse effects on marine organisms. Many marine species, particularly sea cucumbers, inadvertently ingest these plastic particles due to their non-selective feeding behavior. In this study we carried out a 14-day exposure experiment and investigated the effects of polyethylene MPs and NPs on gene expression, oxidative stress, immune condition and histology of a tropical sea cucumber, <em>Holothuria leucospilota</em>, a most abundant sea cucumbers species in the world. The results showed that MPs and NPs dramatically altered gene expression in discrepant profiles. NPs caused down-regulation of the majority of genes related to metabolic processes. In contrast to the enrichment of GO terms which related to regulation, differentiation and development after being exposed to MPs, metabolome-related GO terms were significantly enriched in NPs exposure. The toxicity mechanism associated with the NPs and MPs exposure involves the activation of the antioxidant defense system and the disruption of immune balance. Furthermore, histological destruction of the respiratory tree in NP and MP groups provided robust evidence for the unstable physiological condition. Our study deepens the comprehension of size-dependent plastic toxicity on marine benthic invertebrates, thereby posing a potential hazard to marine ecosystems.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"29 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858069","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}

{"title":"Algae bioremediation of swine and domestic wastewater promotes a reduction of coliforms and antibiotic-resistant bacteria","authors":"Itzel Y. López-Pacheco ,&nbsp;Georgia María González-Meza ,&nbsp;Reyna Berenice González-González ,&nbsp;Roberto Parra-Saldívar ,&nbsp;Elda M. Melchor-Martínez","doi":"10.1016/j.envpol.2025.126294","DOIUrl":"10.1016/j.envpol.2025.126294","url":null,"abstract":"<div><div>The microbiological load that wastewater may contain is an important factor to consider in wastewater treatment to avoid water bodies contamination and has taken on great relevance due to the possible presence of antibiotic-resistant bacteria. This study investigates the feasibility of bacteria control by phycoremediation treatment using <em>Scenedesmus</em> sp. in two types of wastewater (domestic and swine wastewater). It was determined the cell growth of microalgae culture, and the reduction of total coliforms and enterobacteria load throughout ten days of experiment. In addition, the removal of antibiotic-resistant bacteria was performed using five different antibiotics commonly used in clinical diagnosis: Ampicillin Tetracycline, Ciprofloxacin, Sulfamethoxazole, and Ceftriaxone. The results shown a significant decrease in total coliforms and enterobacteria in the phycoremediation process, it was removed up to 98 % of total coliforms [ from (8.7 ± 2.31) × 10⁴ to (1.6 ± 0.17) × 10³ CFU mL ⁻¹] in swine wastewater and 99 % in domestic wastewater [(3.6 ± 0.31) × 10⁵ to (2 ± 0.05) × 10³ CFU mL ⁻¹]. Significant reduction in the case of sulfamethoxazole-resistant bacteria by microalgae in swine wastewater from [(1.47 ± 0.05) × 10⁵ to (5.3 ± 0.57) × 10³ ] and domestic wastewater [(4.9 ± 0.15) × 10⁴ to (2.9 ± 0.36) × 10³]. These findings demonstrate the versatility and effectiveness of the phycoremediation system since the general microbial control to most specific of antibiotic-resistant bacteria in wastewater, demonstrating its great potential to reduce the risk of public health issues in urban and rural areas.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"375 ","pages":"Article 126294"},"PeriodicalIF":7.6,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858068","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}

{"title":"Polystyrene microplastics and cypermethrin exposure interfered the complexity of antibiotic resistance genes and induced metabolic dysfunction in the gut of adult zebrafish","authors":"Chanlin Fang ,&nbsp;Jinhui Zhu ,&nbsp;Haigui Xu ,&nbsp;Minrong Qian ,&nbsp;Yuanxiang Jin","doi":"10.1016/j.envpol.2025.126288","DOIUrl":"10.1016/j.envpol.2025.126288","url":null,"abstract":"<div><div>Environmental pollutants such as microplastics (MPs) and pesticides are becoming prevalent in aquatic ecosystems, posing risks to wildlife and human health. This study investigated the toxicological effects of polystyrene microplastics (PS-MPs) and cypermethrin (CYP) on adult female zebrafish (<em>Danio rerio</em>), focusing on intestinal microenvironment. Adsorption kinetics experimental results showed that PS-MPs can adsorb a certain amount of CYP on its surface, thereby forming a new type of composite pollutant. After exposure to red fluorescent PS-MPs for 4 days, it was found that the PS-MPs could enter the zebrafish and accumulate in the intestines. Five-month-old female zebrafish were exposed to PS-MPs, CYP, and a mixture of both for 21 days. After exposure, feces were collected and analyzed using metagenomic sequencing to determine microbial composition and functional changes. Metagenomic sequencing of naturally excreted feces showed that co-exposure synergistically reduced α-diversity and shifted community structure, with marked losses of beneficial <em>Fusobacteriota</em>, <em>Firmicutes</em> and <em>Cetobacterium somerae</em> and enrichment of pathogenic <em>Preplasmiviricota</em>. Functional annotation indicated that PS-MPs alone up-regulated glycoside hydrolases and glycosyl-transferases, whereas CYP and the co-exposure group suppressed a great number of the top 50 carbohydrate-active enzymes and decreased secondary metabolic pathways linked to amino-acid, lipid and carbohydrate metabolism pathways. Antibiotic-resistance gene (ARGs) profiling identified 57 ARG types (such as sul1, adeF, lnuC and mphA) after co-exposure. Finally, key genes related to amino acid metabolism, carbohydrate metabolism, and lipid metabolism in intestinal tissue were significantly altered. Collectively, our data demonstrated that PS-MPs and CYP exposure amplified gut dysbiosis, metabolic dysfunction and ARG complexity in zebrafish. Overall, the study highlighted the potential risks of combined environmental pollutants on intestinal microbiota, with implications for ecosystem health.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"374 ","pages":"Article 126288"},"PeriodicalIF":7.6,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143851806","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}

{"title":"Effects of sunlight exposure on tire tread particle leachates: Chemical composition and toxicity in aquatic systems","authors":"Jenielle G. Domaoal ,&nbsp;Margaret E. Stack ,&nbsp;Kelly Hollman ,&nbsp;Saleha Khanum ,&nbsp;Christine Cho ,&nbsp;Alysia Daines ,&nbsp;Natalie Mladenov ,&nbsp;Eunha Hoh ,&nbsp;Karilyn E. Sant","doi":"10.1016/j.envpol.2025.126286","DOIUrl":"10.1016/j.envpol.2025.126286","url":null,"abstract":"<div><div>Tire tread particles (TTP) are small micro- or nano-particles resulting from the friction of tire tread against roadways. These secondary microplastics have been found in waterways, arriving through airborne means or runoff. Due to their abundance and persistence in aquatic environments, TTP pose a potential hazard to wildlife. Natural degradation processes like photoirradiation can potentially worsen this by transforming leached TTP chemicals. In this study, we assessed the toxicity and chemical composition of TTP leachates produced over 1 or 6 days in either dark or photoirradiated conditions. For toxicity studies, zebrafish embryos were exposed to leachates over a range of concentrations and from 0 to 4 days post fertilization. TTP exposures impaired survival and hatching, induced embryonic defects, and modulated detoxification by the enzyme ethyoxyresorufin-O-deethylase. RNA sequencing revealed divergent effects based on photoirradiation, including impacts on glycolysis, lipid metabolism, and mitochondrial function. For chemical analysis, leachates were assessed using comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC × GC/TOF-MS) and chromatographic features were annotated. In total, 546 chromatographic features were detected across all samples, and clustering showed unique chemical profiles based on photoirradiation during leaching. Several compounds were in high abundance in 1-day irradiated leachates, including 1,3-diphenylguanidine, aniline, and 1H-benzotriazole, though their relative abundance was reduced in 6-day leachates. Overall, this research compounds on the existing literature defining TTPs as toxic microplastics in the environment, and we show novel chemical and toxicological data that demonstrates how photoirradiation in the natural environment may exacerbate toxicity.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"374 ","pages":"Article 126286"},"PeriodicalIF":7.6,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853690","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}

{"title":"Historical shifts in mercury deposition in northeastern China: From vegetation to human activity","authors":"Yong Luo ,&nbsp;Xin Zhou ,&nbsp;Shiwei Jiang ,&nbsp;Min Ding ,&nbsp;Hongfei Zhao ,&nbsp;Yulu Xue ,&nbsp;Xuanqiao Liu ,&nbsp;Ming Ji","doi":"10.1016/j.envpol.2025.126290","DOIUrl":"10.1016/j.envpol.2025.126290","url":null,"abstract":"<div><div>Mercury (Hg) pollution is a pervasive environmental issue that greatly threatens ecosystem and human health. However, the primary natural factors and human-induced phase shifts affecting Hg deposition in typical areas remain unclear. With its long history of industrialization, northeastern China is an important area for Hg pollution research. Here, we constructed an accurate chronological framework using varve counting combined with Hg concentration measurements to reconstruct the high-resolution Hg depositional history of Sihailongwan Maar Lake (SHML) in northeastern China over the past 1400 years. High (low) Hg flux in the SHML sediments was closely linked to an increase (decrease) in broadleaved tree coverage. During the Medieval Climate Anomaly, warming promoted the expansion of broadleaved trees, increasing Hg flux. Conversely, colder climates hindered broadleaved tree growth during the Little Ice Age, reducing Hg flux. However, Hg flux has significantly increased since the Current Warm Period (∼1850 CE) and was strongly correlated with regional population growth, causing a gradual increase in Hg deposition with increasing human activities and decreased natural input. Four-phase regime shifts in Hg flux influenced by anthropogenic activities were identified using the Sequential T-test Analysis of Regime-Shifts algorithm, highlighting the influence of government policies, economic development, and social changes on Hg deposition. This study elucidated the role of vegetation in northeastern China before large-scale human activities and the complex effects of human activities on Hg deposition.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"374 ","pages":"Article 126290"},"PeriodicalIF":7.6,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853659","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}