环境科学与生态学最新文献_第3页

First evidence of microplastics in the stygobiotic isopod Creaseriella anops from a karst cenote of the Yucatán peninsula. 在Yucatán半岛喀斯特天然井的茎生等足动物中发现微塑料的第一个证据。

IF 4.9 3区环境科学与生态学

Marine pollution bulletin Pub Date : 2026-11-01 Epub Date: 2026-07-13 DOI: 10.1016/j.marpolbul.2026.120116

Marisol Maafs-Sánchez, Efraín M Chávez-Solís, Carlos Rosas-Vázquez, Mariana V Capparelli

{"title":"First evidence of microplastics in the stygobiotic isopod Creaseriella anops from a karst cenote of the Yucatán peninsula.","authors":"Marisol Maafs-Sánchez, Efraín M Chávez-Solís, Carlos Rosas-Vázquez, Mariana V Capparelli","doi":"10.1016/j.marpolbul.2026.120116","DOIUrl":"10.1016/j.marpolbul.2026.120116","url":null,"abstract":"The cenotes of the Yucatán Peninsula are unique subterranean ecosystems that host stigobiontic fauna, yet contamination of groundwater organisms remains poorly understood. Microplastics (MPs) are emerging pollutants widely documented in aquatic environments, but data on their occurrence in groundwater fauna are scarce. This study provides baseline information on the presence and characteristics of MPs in the stigobiontic isopod Creaseriella anops (Isopoda: Cirolanidae), collected via scuba diving at a depth of 30 m in the Xelactún cenote (Kinchil, Yucatán, México). Organisms were chemically digested, and the residues were vacuum-filtered and analyzed under a stereomicroscope. Suspected MPs were quantified and categorized by shape and color, and polymer composition was determined using μFTIR spectroscopy. Only fibers were detected, with a mean abundance of 12.29 ± 3.65 MPs g-1 w.w., predominantly transparent (75.64%). Identified polymers included polyester (20%), polyethylene (7%), rayon (7%), and polypropylene (2%). Given the ecological fragility, high endemism, and importance of cenotes as a regional water source, the relatively high MP concentrations observed highlight the need for further research using C. anops as a model species to assess groundwater contamination.","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"232 ","pages":"120116"},"PeriodicalIF":4.9,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148437298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Coastal winds alter the continental airborne bacterial diversity and pathogenicity over Chulkati Island in Sundarban, India. 沿海风改变了印度Sundarban的Chulkati岛上大陆空气中细菌的多样性和致病性。

IF 7.2 2区环境科学与生态学

Environmental Pollution Pub Date : 2026-11-01 Epub Date: 2026-08-13 DOI: 10.1016/j.envpol.2026.128945

Antara Pramanick, Md Abu Mushtaque, Shahina Raushan Saikh, Sanat Kumar Das

{"title":"Coastal winds alter the continental airborne bacterial diversity and pathogenicity over Chulkati Island in Sundarban, India.","authors":"Antara Pramanick, Md Abu Mushtaque, Shahina Raushan Saikh, Sanat Kumar Das","doi":"10.1016/j.envpol.2026.128945","DOIUrl":"10.1016/j.envpol.2026.128945","url":null,"abstract":"Sundarban experiences diurnal offshore-onshore wind circulation that facilitates enhanced airborne bacterial loading in polluted continental air, originating from densely populated and highly polluted Indo-Gangetic Plain (IGP) through offshore wind, and reduces their abundance in onshore wind. Total suspended airborne samples are collected under offshore and onshore wind conditions, and airborne bacterial community, pathogenicity, and functional profiles are characterized using non-culture-based 16S rRNA gene amplicon sequencing. Coastal airborne bacterial loading in offshore wind (1.5 ± 0.3 × 105 m-3) is reduced by half compared to that in onshore wind (0.8 ± 0.2 × 105 m-3). Sundarban coastal winds are responsible for one-third of the variation in airborne bacterial diversity, with a higher Shannon's diversity index of 3.3 ± 0.2 in offshore winds than 2.6 ± 0.6 in onshore wind, indicating a substantial decline in airborne bacterial diversity under marine influence. Airborne pathogens associated with human, animal, and plant infections are predominant in offshore wind, whereas their abundance declines by more than threefold in onshore winds, suggesting a significant reduction in airborne bacterial diversity under marine atmospheric stressors, such as higher salinity and reflected solar radiation by the sea surface. The present study reveals that continental airborne pathogens present in polluted offshore wind, dominated by taurine and hypotaurine metabolism gene, have potential to survive in a harsh marine atmosphere and return with relatively cleaner onshore wind to the IGP via Sundarban, which has a significant impact on public health in India.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":" ","pages":"128945"},"PeriodicalIF":7.2,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148756959","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

Reconciling mass and number emissions through particle size: Implications for urban ultrafine particle modelling 通过颗粒大小协调质量和数量排放：对城市超细颗粒模型的影响

IF 13.6 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2026-11-01 DOI: 10.1016/j.jhazmat.2026.143879

Soo-Jin Park,Lya Lugon,Youngseob Kim,Alexia Baudic,Amandine Rosso,Jeroen Kuenen,Marya el Malki,Karine Sartelet

引用次数: 0

From species-specific behaviour to ecosystem risk: Upscaling our understanding of microplastic impacts on marine soft sediment ecosystem functions. 从物种特异性行为到生态系统风险：提升我们对微塑料对海洋软沉积物生态系统功能影响的理解。

IF 4.9 3区环境科学与生态学

Marine pollution bulletin Pub Date : 2026-11-01 Epub Date: 2026-07-14 DOI: 10.1016/j.marpolbul.2026.120137

Yuxi You, Stefano Schenone, Samantha Ladewig, Alice Della Penna, Simon F Thrush

{"title":"From species-specific behaviour to ecosystem risk: Upscaling our understanding of microplastic impacts on marine soft sediment ecosystem functions.","authors":"Yuxi You, Stefano Schenone, Samantha Ladewig, Alice Della Penna, Simon F Thrush","doi":"10.1016/j.marpolbul.2026.120137","DOIUrl":"10.1016/j.marpolbul.2026.120137","url":null,"abstract":"Evidence of microplastic-ecosystem impacts is growing; however, our capacity to evaluate associated risks to Earth system processes remains limited. Upscaling impacts and risk assessment in the natural environment usually require a careful balance of accuracy and precision accounting for heterogeneity in ecosystem processes. Intermediate steps between controlled experiments and broad-scale prediction are necessary to fully appreciate the magnitude and implications of plasticising the planet. We explored the potential to change critical ecosystem feedback processes and how these effects can propagate across heterogeneous habitats on intertidal flats. Microplastics (>0.0002 g cm-2) shrank the bioturbation hotspots by 65% at maximum, affecting the landscape of M. stewartensis in regulating the remineralisation across the surveyed sandflat. Behavioural changes in key species can cascade through their functional roles in regulating food resources, thereby amplifying the impacts of microplastics on habitat degradation. This conceptual framework provides a basis for integrating ecosystem feedback into microplastic risk evaluation.","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"232 ","pages":"120137"},"PeriodicalIF":4.9,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148447742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Systemic toxicity of thiamethoxam in the mud crab (Scylla paramamosain): Oxidative stress, neurotoxicity, and growth retardation. 噻虫嗪对泥蟹（Scylla paramamosain）的全身毒性：氧化应激、神经毒性和生长迟缓。

IF 7.2 2区环境科学与生态学

Environmental Pollution Pub Date : 2026-11-01 Epub Date: 2026-08-20 DOI: 10.1016/j.envpol.2026.128997

Zhennan Wang, Ye Sun, Kaiming Luo, Shaolin Yao, Ce Shi, Changkao Mu, Chunlin Wang, Pingping Zhan, Yangfang Ye

{"title":"Systemic toxicity of thiamethoxam in the mud crab (Scylla paramamosain): Oxidative stress, neurotoxicity, and growth retardation.","authors":"Zhennan Wang, Ye Sun, Kaiming Luo, Shaolin Yao, Ce Shi, Changkao Mu, Chunlin Wang, Pingping Zhan, Yangfang Ye","doi":"10.1016/j.envpol.2026.128997","DOIUrl":"10.1016/j.envpol.2026.128997","url":null,"abstract":"Thiamethoxam (TMX), a widely used neonicotinoid insecticide, poses a potential threat to non-target aquatic organisms. However, systematic toxicity evaluations on economically important crustaceans remain limited. This study comprehensively investigated the toxic effects and possible mechanisms of TMX on the mud crab Scylla paramamosain. Acute toxicity testing revealed a 96-h median lethal concentration (LC50) of 8.78 mg/L, suggesting moderate toxicity. Following a 21-day exposure to sublethal concentrations (8.8, 88, and 880 μg/L), TMX and its metabolite clothianidin accumulated in mud crabs in a tissue- and concentration-dependent manner, with the highest levels detected in the gut. While a two-phase enzyme system appeared to contribute to TMX detoxification, its efficiency may have been suppressed at higher concentrations and over longer durations. Consequently, despite indications of an activated Nrf2-mediated antioxidant response, TMX induced significant oxidative stress and hepatopancreatic damage in a time- and concentration-dependent manner. Notably, neurobehavioral alterations-including limb curling and impaired righting ability-were observed at 880 μg/L TMX. Mechanistic analyses suggested that these deficits may be associated with perturbations in cholinergic signaling and interference in tryptophan metabolism in the thoracic ganglia, potentially leading to neurotransmitter dysregulation. These multiple physiological impacts observed at 880 μg/L TMX collectively corresponded with significant growth inhibition, reflected in reduced survival, molting, and weight gain rates. In contrast, the two environmentally relevant concentrations (8.8 and 88 μg/L) posed relatively low actual ecological risk to mud crabs under the conditions tested. Overall, TMX presents negligible risk at current environmental levels, but projected higher concentrations may cause substantial toxicity.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"408 ","pages":"128997"},"PeriodicalIF":7.2,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148786475","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

Corrigendum to "Dual pathways of Mn oxide-driven Cr(III) release and transport in serpentine topsoil: OM-Cr(III) colloids and Cr(VI)" [Water Research, 286 (2025) 124263]. “锰氧化物驱动的Cr（III）在蛇形表层土壤中释放和运输的双重途径：OM-Cr（III）胶体和Cr（VI）”[水研究，286(2025)124263]。

IF 12.8 1区环境科学与生态学

Water Research Pub Date : 2026-11-01 Epub Date: 2026-09-07 DOI: 10.1016/j.watres.2026.126820

Ming Ao, Ruichun Meng, Rouyun Zhou, Bolang Luo, Loua-Augustin Bonaventure, Pan Wu, Rongliang Qiu, Shizhong Wang

引用次数: 0

Thermal history modulates PFUnDA and PFTeDA toxicity in the Mediterranean mussel Mytilus galloprovincialis. 热历史调节PFUnDA和PFTeDA对地中海贻贝的毒性。

IF 7.2 2区环境科学与生态学

Environmental Pollution Pub Date : 2026-11-01 Epub Date: 2026-06-30 DOI: 10.1016/j.envpol.2026.128662

Gonçalo Silva, Marta Cunha, Amadeu M V M Soares, Diana Aga, Rosa Freitas

{"title":"Thermal history modulates PFUnDA and PFTeDA toxicity in the Mediterranean mussel Mytilus galloprovincialis.","authors":"Gonçalo Silva, Marta Cunha, Amadeu M V M Soares, Diana Aga, Rosa Freitas","doi":"10.1016/j.envpol.2026.128662","DOIUrl":"10.1016/j.envpol.2026.128662","url":null,"abstract":"Per- and polyfluoroalkyl substances (PFAS) are persistent contaminants of increasing concern in aquatic ecosystems, yet their interactions with climate-related stressors remain insufficiently understood. This study evaluated whether prior exposure to a moderately elevated temperature modifies the sub-cellular responses of the Mediterranean mussel Mytilus galloprovincialis to two long-chain perfluoroalkyl carboxylic acids, perfluoroundecanoic acid (PFUnDA) and perfluorotetradecanoic acid (PFTeDA). Mussels were pre-exposed to 23 °C for 6 days and then exposed for 14 days at 17 °C to PFUnDA or PFTeDA at a nominal concentration of 20 ng/L. A multi-biomarker approach showed that PFAS exposure at 17 °C induced moderate biochemical changes, mainly involving metabolic depression and antioxidant modulation, with limited oxidative damage. In contrast, thermally pre-exposed mussels displayed higher metabolic activity, increased energy consumption, stronger antioxidant and detoxification responses, and reduced cellular energy allocation, indicating a more energetically demanding physiological state. The strongest integrated response was observed in PFTeDA-exposed mussels after thermal pre-exposure, suggesting compound-specific effects consistent with chain-length-related physicochemical behaviour. However, because exposure concentrations were nominal and internal PFAS burdens were not measured, this interpretation should be considered a mechanistic inference rather than direct evidence of differential bioaccumulation. Overall, these findings indicate that thermal history can reshape sublethal PFAS responses in marine mussels and highlight the need to incorporate stressor sequence, internal exposure and food availability into future ecological risk assessments under climate change.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":" ","pages":"128662"},"PeriodicalIF":7.2,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148358682","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

Source-dependent photoreactivity of dissolved organic matter and its implications for specific disinfection byproduct formation. 溶解有机物的源依赖性光反应性及其对特定消毒副产物形成的影响。

IF 12.8 1区环境科学与生态学

Water Research Pub Date : 2026-11-01 Epub Date: 2026-08-06 DOI: 10.1016/j.watres.2026.126635

Ruizhe Wang, Yu Luo, Fang Chen, Zhineng Hao, Dong Ren, Junjian Wang

{"title":"Source-dependent photoreactivity of dissolved organic matter and its implications for specific disinfection byproduct formation.","authors":"Ruizhe Wang, Yu Luo, Fang Chen, Zhineng Hao, Dong Ren, Junjian Wang","doi":"10.1016/j.watres.2026.126635","DOIUrl":"10.1016/j.watres.2026.126635","url":null,"abstract":"Photochemical processing dictates the molecular evolution of dissolved organic matter (DOM) in sunlit waters and its subsequent reactivity during chlorination. However, how source-specific molecular signatures regulate the photochemical transformations of DOM and its associated disinfection by-product (DBP) formation potentials remains poorly understood. Here, DOM samples derived from algae (ADOM), soil (SDOM), litter (LDOM), and wildfire ash (BDOM) were exposed to 28 days of simulated solar irradiation to elucidate source-dependent molecular transformations and their impacts on specific DBP formation. DOM compositional changes were characterized using optical spectroscopy and Fourier transform-ion cyclotron resonance mass spectrometry, and specific DBP formation potentials were assessed via chlorination assays. Distinct molecular signatures differentiated DOM sources, with ADOM enriched in protein- and lipid-like compounds, whereas SDOM, LDOM, and BDOM contained greater proportions of aromatic, lignin-, and tannin-like molecules. Irradiation drove partial convergence of DOM toward a more oxidized state, lower molecular weight, and more aromatic structures via decarboxylation, dealkylation, and deamination. These transformations reduced specific carbonaceous DBP formation (up to 93 %) across most DOM sources, whereas LDOM showed a ∼9 % increase in specific trihalomethane and chloral hydrate formation, likely due to the persistence and transformation of lignin-like precursors. Notably, specific haloacetonitrile formation potentials substantially increased by 99-125 % across all DOM sources, associated with the generation of reactive nitrogenous precursors through photo-oxidation and depolymerization of macromolecules. These findings demonstrate that solar-driven DOM transformation governs distinct carbonaceous and nitrogenous DBP responses, highlighting the need for source-specific molecular insights to predict and manage DBP risks in watersheds.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"306 ","pages":"126635"},"PeriodicalIF":12.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148704858","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

Corrigendum to "The aging of microplastics exacerbates the damage to photosynthetic performance and bioenergy production in microalgae (Chlorella pyrenoidosa)" [Water Research, 259 (2024), 121841]. “微塑料老化加剧微藻（小球藻pyrenoidosa）光合性能和生物能源生产的损害”[j].环境科学学报，2009,29(2):1241 - 1241。

IF 12.8 1区环境科学与生态学

Water Research Pub Date : 2026-11-01 Epub Date: 2026-09-28 DOI: 10.1016/j.watres.2026.126928

Yazhou Xu, Bo-Yu Peng, Xu Zhang, Qianfeng Xu, Libin Yang, Jiabin Chen, Xuefei Zhou, Yalei Zhang

引用次数: 0

Baseline mercury concentrations and dietary risk assessment in blue shark (Prionace glauca) from Ilo, southern Peru. 秘鲁南部伊洛蓝鲨（Prionace glauca）的基线汞浓度和饮食风险评估。

IF 4.9 3区环境科学与生态学

Marine pollution bulletin Pub Date : 2026-11-01 Epub Date: 2026-07-14 DOI: 10.1016/j.marpolbul.2026.120113

Jose A Valeriano-Zapana, Nuria V Nina-Huarahuara, Paulino F Ríos-Zapana, Leonel A Paccosonco-Sucapuca, Yudith M Cari-Cari, Daniel Álvarez-Tolentino, Juana J Meléndez-Mier, Brian J Oblitas-Gallardo

{"title":"Baseline mercury concentrations and dietary risk assessment in blue shark (Prionace glauca) from Ilo, southern Peru.","authors":"Jose A Valeriano-Zapana, Nuria V Nina-Huarahuara, Paulino F Ríos-Zapana, Leonel A Paccosonco-Sucapuca, Yudith M Cari-Cari, Daniel Álvarez-Tolentino, Juana J Meléndez-Mier, Brian J Oblitas-Gallardo","doi":"10.1016/j.marpolbul.2026.120113","DOIUrl":"10.1016/j.marpolbul.2026.120113","url":null,"abstract":"Total mercury (THg) was quantified in dorsal muscle from 12 blue sharks (Prionace glauca; six males and six females; 167-230 cm total length) landed at the artisanal fishing port of Ilo, southern Peru, in October 2021. THg was determined by cold-vapour atomic absorption spectrometry at an ISO/IEC 17025-accredited laboratory. Concentrations ranged from 0.021 to 0.330 mg kg-1 wet weight, with a mean of 0.156 ± 0.102 mg kg-1. All samples were below the applicable regulatory limits for shark and represented 1.3-20.6% of the Codex Alimentarius maximum level for methylmercury (1.6 mg kg-1), for which THg may be used as a screening measure. THg increased significantly with total length (Pearson r = 0.768, p = 0.003). Females had higher mean concentrations than males, although the difference was not statistically significant and should be considered preliminary. Dietary exposure was evaluated using fresh-products (40 g day-1) and total-products (70 g day-1) screening scenarios derived from Peruvian apparent-consumption statistics. Under the fresh-products scenario, Target Hazard Quotient (THQ) values were 0.98 for general adults and 2.09 for children aged approximately 9-10 years; under the total-products scenario, they increased to 1.71 and 3.65, respectively. Estimated weekly intake remained below the methylmercury Provisional Tolerable Weekly Intake (PTWI) for adults but reached 159.7% for children under the total-products scenario. These findings provide an independent preliminary local reference dataset for P. glauca landed at Ilo. Although measured THg concentrations were low, the conservative exposure scenarios indicated potential concern for children, highlighting the need for larger monitoring datasets, methylmercury speciation, and local shark-consumption surveys.","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"232 ","pages":"120113"},"PeriodicalIF":4.9,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148447793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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