环境•农林最新文献

{"title":"Projected land-use change emissions surpass climate change-induced carbon sinks in Sub-Saharan African biomes","authors":"Dabwiso Sakala,&nbsp;Maria J. Santos","doi":"10.1016/j.gloenvcha.2025.103039","DOIUrl":"10.1016/j.gloenvcha.2025.103039","url":null,"abstract":"<div><div>Land-use and land-cover change (LULCC) and climate change (CC) effects on carbon dynamics in Sub-Saharan Africa (SSA) have the potential to transition the region’s carbon balance from sink to source. Future shared socioeconomic pathways (SSPs) for SSA show high vulnerability to CC, high urbanisation, and cropland and pasture demands expected to rise in the coming decades. Yet the realisations of these pathways may be biome-specific as these are expected to behave differently when it comes to carbon dynamics and also be affected by different demands. Here, we examine the impacts of LULCC and CC on Net Ecosystem Exchange (NEE), Net Primary Productivity (NPP), and carbon turnover time of six SSA biomes, namely tropical rainforest, montane forest, moist savanna, dry savanna, temperate grassland and semi-desert, between 2015–2100 for the five SSPs. We performed four simulations where we (i) kept LULCC and CC constant, (ii) varied LULCC and kept CC constant, (iii) kept LULCC constant and varied CC, and (iv) varied both LULCC and CC and calculated their effect on NEE, NPP and carbon turnover time. We find that LULCC effects supersede those of CC, resulting in a net carbon source despite the sink effect of CC. LULCC alone drives major carbon losses across all scenarios, with moist and dry savannas resulting in the strongest carbon sources with cumulative NEE values of 74.93 and 44.85 PgC by 2100 under SSP4. In contrast, CC alone led to consistent carbon sinks across all scenarios in the semi-desert and tropical rainforest, with the strongest sinks observed under SSP5 (−8.36 PgC and − 3.77 PgC, respectively). Moist savanna also acted as a sink under SSP5 (−4.82 PgC) and SSP3 (−1.73 PgC). Combined effects largely reflect LULCC trends, confirming its dominant role in shaping future carbon dynamics. We further observe that intensifying LULCC may decrease biome carbon turnover time by 50 %, especially in tropical rainforests under SSP3 and SSP4. These results suggest that the CC-induced carbon sinks will unlikely dampen the increasing emissions from LULCC in SSA that may not be offset by 2100. Ultimately, our study demonstrates that sustaining SSA as a carbon sink will require urgent, biome-specific land management policies that integrate socioeconomic realities with the region’s evolving climate and development pathways.</div></div>","PeriodicalId":328,"journal":{"name":"Global Environmental Change","volume":"94 ","pages":"Article 103039"},"PeriodicalIF":8.6,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662308","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}

{"title":"Tissue-specific Responses of Duckweed to Cadmium Stress under Nanoplastic Co-exposure: Differential Accumulation and Toxicity in Roots and Fronds","authors":"Zhihao Xue, Xinyi Liao, Jie Hou, Jiang Xu, Daohui Lin","doi":"10.1039/d5en00432b","DOIUrl":"https://doi.org/10.1039/d5en00432b","url":null,"abstract":"Nanoplastics (NPs), characterized by their small size and widespread presence, are known to interact with other contaminants, potentially modifying their environmental behavior and biological impacts. Herein, we explored the response of duckweed (Spirodela polyrhiza) to Cd (0, 0.01, 0.1, 1 mg/L) stress upon co-exposure to polystyrene NPs (PS-NPs) (0, 0.1, 1, 10 mg/L). Cd exhibits significantly higher toxicity to the duckweed compared to PS-NPs. Notably, the presence of PS-NPs exacerbates Cd toxicity in the roots, while mitigating its adverse effects on the fronds. In-situ analyses using Laser Ablation Inductively Coupled Plasma Mass Spectrometry and Confocal Laser Scanning Microscopy demonstrate that PS-NPs enhance Cd accumulation in the root tips (by up to 19.3%) but reduce its presence in the basal root regions and further translocation to the fronds by up to 26.8%. Metabolomics and gene expression analyses further indicate that PS-NPs elevate organic acid contents and modify gene expressions in duckweed against exogenous Cd stress, thereby inhibiting the root-to-frond translocation of Cd. The findings enhance our comprehension of the complex interactions between NPs and environmental pollutants in aquatic flora.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"108 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144640393","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":"A nano-crystalline Hf(IV) MOF for precise fluorometric recognition of carcinogenic nicotine and herbicide benfluralin: characterization, real-Life application and mechanistic investigation","authors":"Srijan Mukherjee, Sandip Roy, Pitam Chakrabarti, Vishal Trivedi, Shyam Biswas","doi":"10.1039/d5en00141b","DOIUrl":"https://doi.org/10.1039/d5en00141b","url":null,"abstract":"Metal-organic frameworks (MOFs) are emergent smart materials with significant potential in rapid fluorescence-based recognition of toxic organic pollutants. Nicotine (NIC), an extensively consumed neurotetratogenic alkaloid with addictive properties, and benfluralin, a broadly used herbicide, are both potent toxic organic pollutants with several serious health impacts. Extensive exposure of NIC and benfuralin in the environment poses an imperative demand for the development of a reliable sensor for dual recognition of NIC and benfluralin and mitigating the release of toxic substances. Therefore, we have constructed a robust nano-crystalline Hf-based MOF, 1ʹ for fluorescence-based aqueous phase turn-on detection of NIC, in addition to turn-off-based recognition of benfluralin in MeOH medium. Fluorogenic nano-crystalline sensor 1ʹ selectively detects both the targeted analytes with higher precision, even in nanomolar concentration. Moreover, the extended investigation was conducted using the probe 1ʹ for quantitative detection and monitoring of NIC in biofluids, real wastewater specimens and tobacco leaf extracts. Additionally, the capability of 1ʹ in recognition of NIC in live MDAMB-231 breast cancer cells was demonstrated through cell imaging. Furthermore, a biocompatible, cost-effective 1ʹ@chitosan@paper composite strip was demonstrated for instantaneous detection of NIC and benfluralin through a visible change in fluorescence response. Furthermore, a detailed mechanistic investigation was performed to validate a plausible mechanistic pathway for the observed optical response of 1ʹ in the presence of both NIC and benfluralin. This work offers a new approach to precisely monitor and reduce the release of toxic NIC and benfluralin, thereby contributing in safeguarding public health and the environment.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"48 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144640388","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":"Uncovering decolonial pedagogies for learning agroecological transitions: comparative analysis of South America cases","authors":"Michelle Bonatti ,&nbsp;Renata Guimarães Reynaldo ,&nbsp;Berta Martín-López ,&nbsp;Sergio Bolivar ,&nbsp;María Cordero-Fernández ,&nbsp;Giovanna Chavez Miguel ,&nbsp;Adriana Martin ,&nbsp;Janika Hämmerle ,&nbsp;Barbara Schröter ,&nbsp;Carla Erismann ,&nbsp;Teresa da Silva Rosa ,&nbsp;Jon Hellin ,&nbsp;Izabella Schlindwein ,&nbsp;Álvaro Acevedo Osorio ,&nbsp;Leonardo Medina ,&nbsp;Carla Baldivieso ,&nbsp;Luca Eufemia ,&nbsp;Johanna Jacobi ,&nbsp;Ana Maria Lobo Guerrero ,&nbsp;Stefan Sieber","doi":"10.1016/j.gloenvcha.2025.103042","DOIUrl":"10.1016/j.gloenvcha.2025.103042","url":null,"abstract":"<div><div>Agroecological transitions represent strategic pathways for transforming agricultural systems to meet urgent global sustainability goals. These transitions encompass fundamental changes in social-ecological relationships, knowledge systems, and power dynamics within food systems. However, the mechanisms facilitating such transitions remain insufficiently understood, particularly regarding the diversity and efficacy of pedagogical models employed in existing agroecological initiatives. This knowledge gap is especially pronounced within Global South contexts, especially Latin America, where decolonial approaches hold particular relevance and tradition within effective agroecology initiatives. Using a decolonial lens, this study explores the pedagogical models used in community-led agroecological initiatives in Brazil, Colombia, and Peru. Drawing on semi-structured interviews and workshops (n 140), alongside participant observations, we applied a qualitative archetypes analysis to examine three community-led agroecology initiatives. We identified three distinct but interconnected contextual narratives: a. Living Pedagogies; b. Resistance Pedagogies; and c. Hybrid Pedagogies. Despite these different contextual narratives, they share clear patterns, which allowed us to identify one major archetype − the South pedagogies archetype. The decolonial pedagogy found can be fundamental to accelerate agroecological transitions. Traditional communities in Colombia and Peru have preserved and evolved their agroecology knowledge systems through generations of collective learning, offering profound insights into sustainable food production that transcend the limitations of Western scientific methodologies. In parallel, decolonial pedagogies in the Brazilian case were essential to promote urban agroecological transition that started during the 2000s. These findings inform agroecological transition development based on learning processes that value multiple ways of being.</div></div>","PeriodicalId":328,"journal":{"name":"Global Environmental Change","volume":"94 ","pages":"Article 103042"},"PeriodicalIF":8.6,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144631406","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}

{"title":"Surface-Enhanced Raman Spectroscopy for Size-Resolved Microplastic Detection in Real-world Samples Using Thiophenol Labeling","authors":"Jayasree Kumar, Arunima Jinachandran, Mounika Renduchintala, Venugopal Rao Soma, Vijayakumar Shanmugam, Imam Shaik, Sreenivasulu Tupakula, Rajapandiyan Panneerselvam","doi":"10.1039/d5en00211g","DOIUrl":"https://doi.org/10.1039/d5en00211g","url":null,"abstract":"The widespread presence of plastic contamination in the environment presents a severe threat to human and animal health. This study introduces a toluene dispersion strategy for detecting microplastics of different sizes using surface-enhanced Raman spectroscopy (SERS). The evaporation-induced self-assembly (EISA) method was employed to prepare SERS substrates by incubating silver nanoparticles (AgNPs) of ~40-60 nm with a microplastic solution containing polystyrene (250 μm, 2.1 mm), polypropylene (10-50 μm), and polyvinyl chloride (1-5 μm). SEM images and Raman spectroscopy confirmed the uniform decoration of AgNPs on filter paper substrates, with a relative standard deviation (RSD) of 8.22%. Thiophenol was used as a Raman reporter to monitor surface changes, showing a strong correlation (R² = 0.986-0.995) between its SERS signal and microplastic concentration in aqueous and real samples. This is the first time a toluene dispersion strategy has been integrated with EISA to achieve highly sensitive microplastic detection, reaching a limit of 0.001 mg/mL. The method was validated in real-world matrices, including lake water and salt samples, in the presence of interferences like organic pollutants, inorganic ions, colloids, bio-organisms, and bisphenol A. This approach enables rapid detection of diverse microplastics in complex environmental samples.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"39 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144629878","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":"Single-cell mass cytometry reveals cell type- and cluster-specific heterogeneity in silver nanoparticle responses in a 3D alveolar tetra-culture model","authors":"Eunseo Lee, Seung-Geun Park, Seung Min Ha, Minseop Kim, Sehee Park, Aline Chary, Tommaso Serchi, Tae Hyun Yoon","doi":"10.1039/d5en00439j","DOIUrl":"https://doi.org/10.1039/d5en00439j","url":null,"abstract":"Silver nanoparticles (AgNPs) are widely used in medicine, environmental science, and industry. However, their heterogeneous interactions with complex biological systems, especially at the single-cell level, are not fully understood yet. Conventional toxicity assessment methods are typically conducted on oversimplified in vitro models that fail to replicate actual physiological conditions, and measure collective responses across cell populations, obscuring differences among individual cells. To overcome these limitations, we utilized single-cell mass cytometry (CyTOF) to investigate individual cell responses to AgNP-induced stress, combined with a 3D alveolar tetra-culture model designed to better reflect the complexity of biological systems. Single-cell mass cytometry of a 3D alveolar model revealed heterogeneous, cell type–specific responses to AgNP exposure. Specifically, PMA-differentiated THP-1, A549 and EA.hy926 cells exhibited high AgNP association but limited cytotoxicity, indicating activation of stress-mitigation pathways, while THP-1 cells showed early inflammatory activation despite minimal AgNP association, suggesting indirect mechanism. Single-cell analysis and FlowSOM clustering revealed distinct subpopulations exhibiting diverse intracellular signaling profiles of inflammatory cytokines, anti-inflammatory mediators, and stress-response proteins, which unveiled common cellular responses and unique cell-type specific pathways determining cell fate (survival, transitional states, or apoptosis) upon AgNP exposure. This study introduces a novel framework for studying heterogeneous interactions of nanoparticles with complex biological system by integrating 3D alveolar tetra-culture model with single-cell mass cytometry analysis, enabling the dissection of nanoparticle-induced stress responses at an unprecedented level of detail. These insights have broad implications for nanotoxicology and nanomedicine, underscoring the need to account for cellular heterogeneity when evaluating nanoparticle-induced toxicity.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"14 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144629489","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":"A standardized soil-based biotest to investigate the phytoavailability of nanoplastics","authors":"Giovanni Beggio, Marco Roman, Denise M Mitrano, Matthieu N. Bravin, Ateh Suh Nkwekeu Ndiforngu, Annalisa Sandon, Tiziano Bonato, Maria Cristina Lavagnolo","doi":"10.1039/d5en00328h","DOIUrl":"https://doi.org/10.1039/d5en00328h","url":null,"abstract":"Standardized methods are essential for generating reliable and reproducible data to support risk assessment and decision-making related to soil contamination by environmental pollutants, including nanoplastics (NP). This study evaluated the ability of the RHIZOtest method, a standardized soil-plant exposure system, in providing a high-throughput testing platform for investigating NP phytoavailability. As a proof of concept, tomato plants were exposed to artificial soil spiked with model NP at concentrations of 400 and 4,000 mg kg-1 dm. Palladium(Pd)-doped Polystyrene Particles (PS-P) (Z-average diameter 210 nm, Surface Charge Zeta Potential -45.20±032 mV, polydispersity index 0.1, Pd doping ratio of 0.295% w/w Pd to PS-P) were used as surrogates for NPs. Pd content was measured as a proxy for quantifying PS-P uptake. After eight days exposure, Pd was detected in both roots and shoots of plants grown on both spiked soils, confirming PS-P uptake and translocation. On average, 5±1% of the spiked PS-P were taken up by the plants across spiking levels. Root concentration factors varied slightly between the lower and higher levels (31±2% and 24±3%, respectively), while translocation factors remained similar (~25%). Root biomass was significantly reduced compared to controls, suggesting possible concentration-dependent PS-P rhizotoxicity. Notably, the limited variability in concentration values measured in roots (±11%) and shoots (±23%), along with near-complete mass balance recovery (97-100%), demonstrated the reliability of RHIZOtest in accurately and consistently quantifying NP uptake while accounting for rhizosphere processes.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"7 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144629502","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":"Overshoot, potential air pollution co-benefits and food shortages","authors":"Li-Jing Liu ,&nbsp;Qiao-Mei Liang ,&nbsp;Felix Creutzig ,&nbsp;Hua Tong ,&nbsp;Yu-Xuan Xiao ,&nbsp;Xiang-Yan Qian ,&nbsp;Hao Wang ,&nbsp;Si-Yi Wei ,&nbsp;Xiao-Chen Yuan ,&nbsp;Biying Yu ,&nbsp;Lan-Cui Liu ,&nbsp;Yi-Ming Wei","doi":"10.1016/j.gloenvcha.2025.103040","DOIUrl":"10.1016/j.gloenvcha.2025.103040","url":null,"abstract":"<div><div>Achieving the 1.5°C target will entail a temporary overshoot, with peak temperatures potentially exceeding 1.7°C before declining towards the end of the century. This study examines how different economic growth patterns, energy transitions, and non-CO₂ mitigation strategies influence this trajectory. Our simulations reveal that achieving this target requires confining cumulative CO₂ emissions to 220–370 GtCO₂ by 2100, with a peak around 2060 of 530–650 GtCO₂. Key to success is the transition to net-zero CO₂ by 2060 and the implementation of Carbon Dioxide Removal (CDR) technologies. Effective reductions in CH₄ and N₂O are vital for minimizing additional warming. Significant co-benefits include improved air quality, with SO₂ and NOx emissions decreasing by 60–80 %, enhancing public health. However, aggressive climate policies and resulting high fertilizer prices may reduce food crop yields by up to 16.8 %, highlighting the need to integrate climate and agricultural strategies to balance emission reductions with food security and achieve long-term climate and sustainability goals. The deployment of CDR technologies with low land footprint, such as direct air capture, could help alleviate land-based trade-offs.</div></div>","PeriodicalId":328,"journal":{"name":"Global Environmental Change","volume":"94 ","pages":"Article 103040"},"PeriodicalIF":8.6,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144604243","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}

{"title":"Mechanistic understanding of iron oxide nanobiotransformation in Zea mays: a combined synchrotron-based, physiological and molecular approach","authors":"Luca Pagano, Silvia Carlo, Giovanni Orazio Lepore, Valentina Bonanni, Milan Zizic, Simone Pollastri, Simone Margheri, Jacopo Orsilli, Alessandro Puri, Marco Villani, Chunyang Li, Giuliana Aquilanti, Alessandra Gianoncelli, Francesco d'Acapito, Andrea Zappettini, Chuanxin Ma, Jason C. White, Nelson Marmiroli, Marta Marmiroli","doi":"10.1039/d5en00401b","DOIUrl":"https://doi.org/10.1039/d5en00401b","url":null,"abstract":"The study investigates the nanobiotransformation dynamics and molecular level impact of iron oxide nanoparticles (nFe<small>₃</small>O<small>₄</small>) on <em>Zea mays</em>. Specifically, the impact of soil-applied nFe<small>₃</small>O<small>₄</small> (500 mg kg<small>⁻¹</small>) or FeCl<small>₃</small> (75 mg kg<small>⁻¹</small>) on <em>Z. mays</em> morphological, physiological, and transcriptional responses was investigated in a whole life cycle study. X-ray absorption spectroscopy (XAS) showed that the Fe local structure changed upon nanoscale Fe internalization, indicating potential nanoparticle biotransformation within the plant tissues. Neither of the Fe amendments induced significant plant morphological changes, although FeCl<small>₃</small> reduced chlorophyll content (SPAD index 37.43 <em>vs.</em> 44.33) and stomatal transpiration (s cm<small>⁻¹</small>, 5.08 <em>vs.</em> 9.67) and increased lipid peroxidation (MDA content, μM, 7.01 <em>vs.</em> 3.26) compared with controls. Conversely, nFe<small>₃</small>O<small>₄</small>-treated plants exhibited milder physiological response as compared to FeCl<small>₃</small>-treated plants (SPAD index: 40.42 <em>vs.</em> 37.43; MDA content: 4.57 <em>vs.</em> 7.01 μM). Gene expression of selected biomarkers showed a 2- to 4-fold increase of glutathione reductase (<em>gsr1</em>) and <em>mate1</em> xylem transporter, and a 2-fold decrease of proline responding (<em>pro1</em>) gene. These findings, together with iron intake quantification, suggest limited internalization and translocation of iron in the pristine nanometric form and that Fe<small>³⁺</small> internalization was a function of the amount in the medium. Importantly, nFe<small>₃</small>O<small>₄</small> provided a controlled and more precise method of iron release <em>in planta</em>. The combination of physical, chemical, and biological data to assess the potential of nFe<small>₃</small>O<small>₄</small> as a nanofertilizer leads to novel insights on the potential impact of nano-enabled agriculture and nanobiofortification.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"7 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144603484","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":"Arsenic exposure in insects from green spaces near a former copper smelter.","authors":"Carlos Alberto Rebolloso-Hernández, Moisés Roberto Vallejo-Pérez, Leticia Carrizales-Yáñez, Aristeo Cuauhtémoc Deloya-López, Israel Razo-Soto, Fernando Diaz-Barriga","doi":"10.1007/s00114-025-02001-2","DOIUrl":"10.1007/s00114-025-02001-2","url":null,"abstract":"<p><p>Urban green spaces play a crucial role in protecting insect biodiversity against habitat loss. However, chemical pollution poses a potential threat to these ecosystems, making ecological risk assessment essential. In the city of San Luis Potosí, a former copper smelter operated for several decades, releasing arsenic into the environment. Despite this, its ecological impact has received no attention, which is important given the presence of nearby green spaces that provide habitat for urban insects. This study assessed arsenic levels in soil, plants, and insects near this former copper smelter to determine whether this pollutant poses risks to local insects. The study sites included green spaces near the smelter (smelter-impacted zone) and reference green spaces (reference zone), both ubicated within the same city. The study sites harbor more than 50 insect families with different ecological roles. Arsenic levels in soil, plants, and insects in the smelter-impacted zone were 4, 2, and 20 times higher compared to the reference zone, respectively. The analysis of exposure routes indicates that soil is a direct route for plants and insects, plants transfer the arsenic to several herbivores, decomposers reincorporate arsenic into the trophic chain, and predators are also exposed. Moreover, Cotinis mutabilis (Coleoptera: Scarabaeidae: Cetoniinae) was identified as a bioindicator of arsenic pollution, showing a positive correlation between its tissue concentrations and arsenic levels in soil. In conclusion, this study demonstrates that arsenic pollution threatens insects in the smelter-impacted zone, highlighting the need for further research to assess the potential ecological risks.</p>","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"112 4","pages":"51"},"PeriodicalIF":2.1,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}