Integrated Environmental Assessment and Management最新文献

{"title":"Use of aquatic macrophyte field data in the higher tiers of the risk assessment for plant protection products in Europe.","authors":"G H P Arts, J D M Belgers, S M Hennekens","doi":"10.1093/inteam/vjag134","DOIUrl":"https://doi.org/10.1093/inteam/vjag134","url":null,"abstract":"<p><p>This study presents a comprehensive dataset of aquatic macrophyte field observations aimed at supporting higher-tier risk assessments for plant protection products (PPPs). The dataset includes species composition and abiotic conditions of edge-of-field freshwater systems such as ponds, streams, and ditches across Europe and key functional traits of their most common macrophytes. Analysis showed that the key macrophyte species are broadly distributed and are already frequently included in Species Sensitivity Distributions (SSDs) as well as in mesocosm and potted plant studies. The data collected is useful in the context of pesticide risk assessment as it provides information on which species could be focal species and information to define ecological scenarios as well as to use in ecological models. Also the data can support a reference tier that enhances ecological realism in aquatic risk assessments. A case study using the herbicide metazachlor illustrates how the dataset can inform regulatory decision-making by comparing SSD-derived endpoints based on toxicity endpoints for macrophyte species found in edge-of-field surface waters with those from traditional mesocosm studies. This approach offers an alternative to experimental systems, aligning with current regulatory goals for more representative and efficient risk assessments.</p>","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148712200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Unveiling the potential of Zn-Al-NO3 LDH as nanofertiliser: Effects on the maize growth and biological and chemical properties of an acidic soil.","authors":"Catarina Malheiro, Rui G Morgado, Susana Loureiro","doi":"10.1093/inteam/vjag136","DOIUrl":"10.1093/inteam/vjag136","url":null,"abstract":"<p><p>Zinc (Zn) is an essential micronutrient, and its deficiency is a global issue. Zinc fertilisers are commonly used to address this, but they often have low efficiency, limiting yields and causing environmental problems. Layered double hydroxides (LDHs) are innovative nanomaterials with potential agricultural applications. To ensure their sustainability, it is crucial to understand their behaviour, fate, and toxicity in the terrestrial ecosystem. This study evaluated Zn-Al-NO3 LDH as an alternative Zn fertiliser at relevant agronomic concentrations. Zn sulfate was tested as a conventional fertiliser, and maize (Zea mays) as a test species. The assessment included plant performance, Zn use efficiency, soil functionality indicators, and Zn fate assessments. Our study showed that Zn-Al-NO3 LDH did not affect plant development and increased root Zn content, with little to no translocation to the shoots. Soil enzymatic activity increased over time, but differences in soil ecosystem multifunctionality were negligible. Low nitrate and Zn concentrations in leachates indicated reduced leaching potential. Our study demonstrates the potential of Zn-Al-NO3 LDH as an alternative to conventional Zn fertilisers at half the recommended dose. However, further research is needed to investigate its effects across different plant species and to evaluate the fate and behaviour of these nanomaterials in various soils and environmental contexts.</p>","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148723138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Mapping and economic valuation of the wider values of brownfield remediation and restoration: a review.","authors":"Paul Drenning, Lars Rosén, Lucija Prsa Gazilj, Paul Bardos, Nazaré Couto, Pavlos Tyrologou, Jenny Norrman","doi":"10.1093/inteam/vjag135","DOIUrl":"https://doi.org/10.1093/inteam/vjag135","url":null,"abstract":"<p><p>Although a growing body of research recognizes the wider values generated by brownfield remediation and restoration (BRR), there is still limited consolidated knowledge on how these values can be systematically assessed and integrated into planning and investment decisions. A semi-systematic review of scientific and grey literature was conducted to map the wider values and their economic impacts as well as economic valuation methods that have been used to monetize them while assessing potential biases, knowledge gaps and future research directions. This study contributes to the literature by providing a structured synthesis that links wider values of BRR with economic valuation methods, uncertainty considerations, and their integration into business case development. The review shows that there is a broad range of wider values linked to BRR and alternative future land uses, many of which can be monetized using various monetary valuation methods, though difficult to monetize benefits such as biodiversity and soil health improvements are underrepresented. A simplified framework is proposed to demonstrate how accounting for wider values from an economic perspective can strengthen the economic case for BRR, particularly at vacant or underutilized land with lower financial potential. Value transfer is highlighted as a promising valuation method where resources are limited, but a probabilistic approach is recommended to account for uncertainties by considering representative values for ranges (e.g., mean, mode or median values) instead of transferring highly variable point estimates. It is also recommended to carefully consider the economic valuation method for the specific project context, as some valuation estimates and methods using direct, cost-based methods like market pricing, replacement cost, etc., are highly site-specific and could be replicated using site-specific information instead of value transfer. Potential risks such as double-counting, limitations in monetization from narrow ethical viewpoints, and other biases and methodological challenges are discussed.</p>","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148712194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"CONCENTRATION‑DEPENDENT TROPHIC TRANSFER OF SELENIUM TO BIRD EGGS: FIELD SYNTHESIS AND LABORATORY BENCHMARKS.","authors":"Gary M Santolo, Harry M Ohlendorf","doi":"10.1093/inteam/vjag131","DOIUrl":"https://doi.org/10.1093/inteam/vjag131","url":null,"abstract":"<p><p>Maternal transfer of selenium is the critical exposure pathway for reproductive risk in birds, yet diet→egg transfer varies widely with species, diet composition, timing, and selenium speciation. We synthesized paired diet-egg datasets from wetlands and terrestrial systems together with controlled feeding studies to quantify diet→egg trophic transfer factors and evaluate their concentration dependence. Across field settings, invertebrate or fish prey frequently exceeded dietary screening levels while egg selenium yolk = 0.211factors, often ≤ 1. By contrast, laboratory selenomethionine diets produced higher, steadier trophic transfer factors, reflecting sustained, highly bioavailable exposure. A compartment analysis showed albumen responds rapidly to recent intake whereas yolk integrates over days to weeks, explaining field scatter and lab steadiness. These findings support a three‑zone conceptual model, that is deficiency, regulation band, and high exposure, in which proportional transfer is damped across the regulation band. We provide operational guidance that emphasizes aligning prey sampling to the immediate pre-laying window, considering selenium speciation (especially the selenomethionine fraction), and applying guild- and site-appropriate TTFs for forward and backward translation.</p>","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148684439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Supporting Integrated Chemical Risk Management: Aligning Safe and Sustainable by Design and EU Ecolabel Decision Frameworks.","authors":"Arthur Ribas de Souza Sales","doi":"10.1093/inteam/vjag132","DOIUrl":"https://doi.org/10.1093/inteam/vjag132","url":null,"abstract":"<p><p>The increasing proliferation of policy-driven frameworks addressing chemical safety and sustainability has intensified the need for coherence and integration in environmental assessment and management. In the European context, Safe and Sustainable by Design (SSbD) and the EU Ecolabel represent influential but conceptually distinct instruments that may yield divergent conclusions when applied to the same product system, potentially challenging transparent and consistent decision-making. This study examines the extent to which such divergences arise from differences in assessment logic rather than from conflicting scientific evidence, using a structured case study of a representative consumer product formulation. An integrated assessment approach was applied, combining exposure-informed regulatory risk characterization with life-cycle-based toxicity prioritization. Occupational and environmental risks were quantified using established regulatory tools (Chesar® and EUSES 2.1.2), while potential human toxicity and freshwater ecotoxicity impacts were evaluated using USEtox® characterization factors. Results indicate that regulatory acceptability thresholds were achieved for nearly all modeled exposure scenarios, with a marginal exceedance of the average dermal risk characterization ratio observed for Cocamidopropyl betaine under conservative occupational exposure assumptions. In contrast, life-cycle toxicity indicators revealed marked differences in relative substance contributions to potential human and ecological impacts, reflecting intrinsic hazard and fate properties rather than exposure-driven risk. The comparative analysis demonstrates that apparent inconsistencies between SSbD and EU Ecolabel outcomes are primarily attributable to differences in decision logic, assessment scope, and the weighting of hazard-, exposure-, and life-cycle-based information. Building on these findings, a conceptual integration model is proposed to support transparent interpretation and reconciliation of assessment results across frameworks. The study contributes to ongoing discourse within the environmental assessment community by illustrating how complementary use of regulatory risk assessment and life-cycle toxicity indicators can enhance chemical risk management, reduce misalignment between policy instruments, and support more informed and consistent sustainability-oriented decisions.</p>","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148684436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"The applicability of acute-to-chronic ratios and in silico tools in estimating chronic aquatic toxicity of ingredients in cosmetics and personal care products.","authors":"Júlia Beatriz Vaz de Oliveira, Laura Sada Vieira, Natália de Albuquerque Vita de Abreu, Dâmaris Cristine Marios Ferreira Pinto, Gabriela de Oliveira Prado Corrêa, Andrezza Di Pietro Micali Canavez, Desirée Cigaran Schuck, Cynthia Bomfim Pestana, Daniela Morais Leme","doi":"10.1093/inteam/vjag126","DOIUrl":"https://doi.org/10.1093/inteam/vjag126","url":null,"abstract":"<p><p>Understanding the potential environmental impact of cosmetics and personal care products (PCPs) and successfully developing eco-friendly formulations requires knowledge of the aquatic toxicity of ingredients. However, for the cosmetic industry, aquatic toxicity assessments are challenged by the large number of ingredients, restrictions on animal testing and lack of chronic toxicity data. Therefore, alternative approaches are required to fill these gaps. This study aimed to evaluate the potential applicability of acute-to-chronic ratios (ACRs) and in silico tools (VEGA and OECD QSAR Toolbox) to estimate chronic aquatic toxicity values (NOECs for algae, daphnids, and fish) for a set of 41 ingredients of cosmetics and PCPs with well-defined molecular structures. Extrapolations and predictions were compared to experimental chronic toxicity data. We observed that ACR-based extrapolations were strongly correlated with experimental NOECs, particularly when using the lowest ACRs, with algae showing the strongest correlation. MoA-based ACRs did not improve the prediction of chronic values when compared to general ACRs. Extrapolated values were not consistently conservative, with both over- and underpredictions observed. The OECD QSAR Toolbox yielded more acceptable chronic toxicity predictions than VEGA, yet both exhibited weaker correlations with experimental data than the ACR-based approach. Predictive performance of the in silico models improved when analyzing the subgroup of MoA 1 substances for algae. Overall, our findings support the use of ACRs for filling chronic toxicity data gaps in screening-level assessments within environmental hazard-based tools for developing eco-friendly cosmetics and PCPs, while the freely available in silico tools require further refinement to improve performance in this context.</p>","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148678324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Global Framework for Lip Product Safety: A Review of the Regulatory Blind Spot in the Modern Market.","authors":"Laura DiGirolamo, Heather Bustos, Ke Chris Tang, L Cristiana Gheorghe, Iseult Lynch, Robert G Lee","doi":"10.1093/inteam/vjag129","DOIUrl":"https://doi.org/10.1093/inteam/vjag129","url":null,"abstract":"<p><p>Lip products occupy a regulatory blind spot. Classified as cosmetics for external application across all major jurisdictions, there are two distinct adverse outcome pathways: cutaneous absorption via lip tissue with significantly diminished barrier function, and oral ingestion documented at levels reaching half a kilogram annually for high-frequency users. We present a comparative analysis of how the United States, European Union (EU), United Kingdom (UK), Canada, China, and South Korea regulate lip products, revealing a systemic gap in how regulations address their actual exposure profile. Three critical gaps are common across all frameworks: definitional miscategorization of the exposure profile; absence of appropriate safety assessment for either ingestion or lip-tissue absorption pathways; and testing duration requirements that are absent in the majority of frameworks and, where they exist, capped at subchronic endpoints that do not reflect continuous real-world use extending far beyond 90 days. Baseline exposure data underpinning global safety assessments were collected in 2003-2005 and predate contemporary lip product categories; contemporary studies document 95th-percentile lip balm consumption at 1,270 mg/day, a 14.6-fold increase over regulatory baselines. Two regulatory paradoxes within the EU crystallize the classificatory failure: titanium dioxide, banned as a food additive over oral ingestion genotoxicity concerns, remains unrestricted in lip cosmetics with an identical ingestion pathway; and microplastics are restricted in lip products under EU chemicals regulation because of environmental release through human ingestion, while the Cosmetics Regulation assesses them under dermal parameters. This demonstrates that regulatory sophistication cannot overcome classificatory error, and that meaningful reform requires updated, population-specific exposure studies reflecting contemporary usage patterns, product categories, and consumer demographics. We recommend development of lip-appropriate assessment methodology via validated non-animal methods (within existing cosmetic regulatory frameworks, without product reclassification) and the potential extension of the food-grade ingredient safety principles accepted in industry voluntary guidance to all lip product ingredient categories.</p>","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148673583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Exploring Trade-offs Between Carbon Storage and Timber Production with Alternative Rotation and Harvest Policies: Insights from a Real-World Forest Management Area.","authors":"Emin Zeki Baskent, Jan Kašpar, Eyyub Başkent","doi":"10.1093/inteam/vjag125","DOIUrl":"https://doi.org/10.1093/inteam/vjag125","url":null,"abstract":"<p><p>Forests provide essential ecosystem services, particularly timber production and carbon sequestration, both of which play critical roles in climate change mitigation and sustainable forest management. However, the long-term consequences of alternative management strategies on carbon-timber trade-offs remain insufficiently understood. This study addresses this gap by analysing the combined effects of rotation length, harvest regulation strategies, and tree-size dynamics on forest carbon storage and timber production using the ETÇAP decision support system (DSS). Four management scenarios were developed by combining short and long rotation periods with area-control and volume-control harvesting policies, while explicitly accounting for tree-size-dependent carbon dynamics. Simulations were conducted for a representative forest planning unit in Türkiye over a 100-year planning horizon. Results showed that longer rotations and volume-control harvesting consistently projected the largest increase in carbon storage by promoting the development and retention of larger trees, whereas shorter rotations and area-control harvesting enhanced timber production but intensified trade-offs with carbon sequestration. While tree-size dynamics influenced the magnitude of carbon accumulation, they did not substantially alter the overall trade-off patterns among management strategies. These results indicate that management decisions affecting age structure and harvesting regimes are important determinants of long-term carbon-timber outcomes. As the analysis is based on deterministic simulations that exclude major disturbance processes such as wildfire, pest outbreaks, and climate extremes, the results need to be interpreted as scenario-based projections. Nevertheless, the study highlights the value of integrating ecosystem-based forest management with decision support systems to systematically evaluate long-term management alternatives and support climate-informed forest planning.</p>","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148673670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"The Permeable Lip: A Critical Knowledge Gap for Systemic Exposure to Lip Cosmetic Chemicals.","authors":"Iseult Lynch, L Cristiana Gheorghe, Nora Hassas, Robert G Lee, John Milligan, Laura DiGirolamo","doi":"10.1093/inteam/vjag128","DOIUrl":"https://doi.org/10.1093/inteam/vjag128","url":null,"abstract":"<p><p>The pervasive use of lip cosmetics results in chronic, low-dose exposure to complex mixtures of chemicals via multiple routes, yet current cosmetic safety regulations treat lip products as conventional topical applications to skin. While the EU safety assessment framework acknowledges ingestion as an exposure route for lip products, standardised lip-specific testing models do not currently exist. The US requires no mandatory pre-market safety review for cosmetic ingredients and systemic exposure consideration is confined to voluntary industry assessment (except for colour additives). In both jurisdictions, exposure estimates are based on usage data from 2005 that do not reflect current real-world usage patterns of lip cosmetics, including frequent reapplication, product layering, and marketing based on food characteristics. The unique physiology of the lips, which represent a transitional tissue between external skin and oral mucosa provides an additional exposure route: the vermilion and labial mucosa are characterized by a markedly thinner and incompletely keratinised epithelium, reduced lipid barrier components, high vascularisation, and constant moisture-collectively conferring substantially higher permeability than facial skin. Evidence from pharmacology demonstrates that oral mucosal tissues are deliberately exploited for rapid systemic drug delivery. By comparing how the oral mucosal exposure route is evaluated across cosmetic, food, and pharmaceutical regulatory regimes, this review identifies a critical regulatory gap: chemicals applied to the lips are assessed under frameworks designed for low-permeability skin, despite a biological reality more consistent with mucosal exposure. This mismatch undermines the accuracy of current risk assessments and may lead to systematic underestimation of internal dose for certain lip cosmetic ingredients including microplastics. Addressing this gap will require lip-specific exposure models, physiologically relevant in vitro systems, and updated regulatory guidance to ensure that cosmetic safety assessment accurately reflects the unique exposure profile of lip products.</p>","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148673639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Influence of Hurricane Helene on Microplastic Deposition in the Mountainous Southeastern United States.","authors":"Austin Gray, Jason Love, Nathaniel Barrett, James Campbell, Jerry Miller, Radmila Petric, Robert Youker, Xinyue Huang, Hosein Foroutan","doi":"10.1093/inteam/vjag130","DOIUrl":"https://doi.org/10.1093/inteam/vjag130","url":null,"abstract":"<p><p>Due to climate change, we expect more intense hurricanes, leading to higher precipitation than previously observed. Historic storms, such as Hurricane Helene, that struck the southeastern United States (U.S.) in September 2024, deposited between 508 and 762 mm (20-30 in) of rainfall in rural, mountainous parts of Western North Carolina, resulting in catastrophic flooding. Less well known is the extent of microplastic (MP) deposition in these less developed areas. While there is insight into MP deposition due to typhoon events in Eastern Hemisphere, in our assessment, we conducted the first-ever study U.S. based assessment of MP deposition in a severely affected southeastern U.S. region at multiple locations (Iron Duff, Coweeta Hydrologic Laboratory (Coweeta), and Highlands Biological Station (HBS), months before (January to September), during (September), and weeks post-hurricane (October to November). Our findings show that Hurricane Helene contributed to elevated MP deposition at all sites (3 to 22x higher than pre-Hurricane Helene levels), where total storm MP deposition was 1,280, 2,179, and 10,243 MP/m² at Iron Duff, Coweeta, and HBS, respectively. This historic storm accounted for 4.2, 4.6, and 18.8% of the annual MP deposition at Iron Duff, Coweeta, and HBS, respectively. Using backward trajectory analysis, we found that air masses reaching our sampling locations differed during Hurricane Helene compared to pre- and post-Helene periods. Our regression model estimated that the total anomalous deposition over the area of the U.S. affected by Hurricane Helene (3,798,756.55 km²) was 3.85 × 10¹⁵ MPs. Polyamide, polystyrene, polyethylene terephthalate, polypropylene, and polyethylene were the main polymers detected before and during Hurricane Helene. Our findings underscore how extreme storms can produce short-term spikes in MP deposition above ambient levels in a region. Thus, highlight the need to prioritize funding and policy initiatives to better assess risks posed by MPs to vulnerable ecosystems.</p>","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148673665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}