Environmental Science & Technology Letters Environ.最新文献_第6页

Small Molecules as Markers for Decoding Plastic-Related Information: A Focus on Polymer Composition 小分子作为解码塑料相关信息的标记：聚合物组成的焦点

IF 8.8 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-07-29 DOI: 10.1021/acs.estlett.5c00448

Yu Li, Katherine Poisson, Madison H. McMinn, Changyong Zhang, Shuai Yang and Zhenyu Tian*,

{"title":"Small Molecules as Markers for Decoding Plastic-Related Information: A Focus on Polymer Composition","authors":"Yu Li, Katherine Poisson, Madison H. McMinn, Changyong Zhang, Shuai Yang and Zhenyu Tian*, ","doi":"10.1021/acs.estlett.5c00448","DOIUrl":"https://doi.org/10.1021/acs.estlett.5c00448","url":null,"abstract":"Although the relationship between plastics and their embedded small molecules has been previously hypothesized, direct and systematic evidence remains limited. Herein, we introduced an innovative approach to validate this relationship by screening specific small molecules as markers to decode plastic information. Given the mature techniques available for polymer identification, enabling subsequent validation, this study focused on screening polymer-specific small molecule markers. Specifically, plastic samples of various polymer types─including raw plastic pellets and postprocessed plastic products─were collected, extracted, and analyzed with a nontargeted method. Distinct polymer-based features were observed in raw plastic pellets: 21 in polyethylene (PE), 69 in polypropylene (PP), 119 in poly(ethylene terephthalate) (PET), and 14 in polystyrene (PS). Of these, 2, 28, 101, and 10 features were also detected in postprocessed plastic products of the same polymer, indicating these co-occurring features could serve as polymer-specific markers. Representative markers were identified, including Irganox 1010 transformation products in PP-based plastics, PET oligomers in PET-based plastics, and dibenzoylmethane in PS-based plastics. These markers were then used to identify the polymer type of two additional plastic bottles as PET, consistent with results obtained from pyrolysis-gas chromatography/mass spectrometry. This work provides a proof-of-concept for employing small molecule markers to decode plastic-related information.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 8","pages":"1019–1025"},"PeriodicalIF":8.8,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acs.estlett.5c00448","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144813709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Direct Measurement of Carbon Dioxide Removal Due to Enhanced Weathering 因增强风化作用而导致的二氧化碳去除的直接测量

IF 8.8 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-07-28 DOI: 10.1021/acs.estlett.5c00441

Ella Milliken*, Alex Woodley and Noah J. Planavsky,

引用次数: 0

Eyes as a Novel Target of Psychoactive Contaminants in Fish 眼睛是鱼类精神活性污染物的新靶点

IF 8.8 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-07-24 DOI: 10.1021/acs.estlett.5c00607

Ganna Fedorova*, , , Anatolii Sotnikov, , , Jan Turek, , , Petra Galicová, , , Gayani Rajakaruna Kapukotuwa, , , Tomáš Randák, , and , Serhii Boryshpolets,

{"title":"Eyes as a Novel Target of Psychoactive Contaminants in Fish","authors":"Ganna Fedorova*, , , Anatolii Sotnikov, , , Jan Turek, , , Petra Galicová, , , Gayani Rajakaruna Kapukotuwa, , , Tomáš Randák, , and , Serhii Boryshpolets, ","doi":"10.1021/acs.estlett.5c00607","DOIUrl":"https://doi.org/10.1021/acs.estlett.5c00607","url":null,"abstract":"Psychoactive drugs are prevalent aquatic contaminants that target neurotransmitter systems conserved across vertebrates. While their effects on fish brain chemistry and behavior are increasingly recognized, impacts on sensory systems such as vision remain largely unexamined. Here, we demonstrate that environmentally relevant mixtures of psychoactive drugs accumulate in the eyes of European perch (Perca fluviatilis) under both laboratory and field conditions, often at higher concentrations than in the brain. This ocular accumulation significantly alters neurotransmitter levels critical to visual processing. Our findings reveal a previously overlooked mechanism of sensory disruption with potential consequences for fish behavior, ecological interactions, and population fitness. Current environmental risk assessments, which rarely consider the visual system, may therefore underestimate the ecological impact of pharmaceutical pollution. These results underscore the need to expand ecotoxicological frameworks to include sensory endpoints and visual function as sensitive indicators of contaminant exposure in aquatic organisms.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 10","pages":"1301–1307"},"PeriodicalIF":8.8,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145277742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of AC Field Frequency on Membrane Colloidal Deposition and Detachment 交流电场频率对膜胶体沉积和脱落的影响

IF 8.8 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-07-24 DOI: 10.1021/acs.estlett.5c00623

Elina Yachnin, Fan Yang, David Jassby, Eric M. V. Hoek, Tamar Segal-Peretz and Guy Z. Ramon*,

引用次数: 0

Nondestructive In Operando Imaging of Thin Film Composite Membrane Compaction Enhanced by AI-Based Segmentation 基于ai分割增强的薄膜复合膜压实的无损操作成像

IF 8.8 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-07-22 DOI: 10.1021/acs.estlett.5c00529

Jishan Wu, Yara Suleiman, Jinlong He, Minhao Xiao, Parisa Mahyari, Mingzhe Li, Lin Zhou, Yuanmiaoliang Chen, Hanqing Fan, N. A. Sreejith, Hariswaran Sitaraman, Marc Day, Ying Li, Jeffrey R. McCutcheon, Menachem Elimelech, Sina Shahbazmohamadi* and Eric M. V. Hoek*,

{"title":"Nondestructive In Operando Imaging of Thin Film Composite Membrane Compaction Enhanced by AI-Based Segmentation","authors":"Jishan Wu, Yara Suleiman, Jinlong He, Minhao Xiao, Parisa Mahyari, Mingzhe Li, Lin Zhou, Yuanmiaoliang Chen, Hanqing Fan, N. A. Sreejith, Hariswaran Sitaraman, Marc Day, Ying Li, Jeffrey R. McCutcheon, Menachem Elimelech, Sina Shahbazmohamadi* and Eric M. V. Hoek*, ","doi":"10.1021/acs.estlett.5c00529","DOIUrl":"https://doi.org/10.1021/acs.estlett.5c00529","url":null,"abstract":"Reverse osmosis (RO) membranes are essential for desalination and water reuse, yet their permeability declines in high-pressure applications due to membrane compaction. This study investigates the structural and functional responses of commercial brackish, seawater, and high-pressure RO membranes at applied pressures up to 120 bar using a multiscale, nondestructive in operando scanning electron microscopy (iSEM) imaging platform. The iSEM technique reveals progressive densification across the composite membrane structure, which correlates with observed declines in water and solute permeance. To quantify these structural changes with greater fidelity, we combined X-ray computed tomography with AI-based segmentation enabling precise analysis of pore size distribution and thickness of the polysulfone support layer. Compared to traditional thresholding, AI segmentation accurately delineates material phases and void spaces, enhancing the reproducibility and resolution of morphological assessments. The results demonstrate that compaction-induced reductions in porosity and thickness strongly impact membrane transport properties. These findings provide mechanistic insights into the compaction behavior of RO membranes and underscore the potential for advanced imaging and AI-driven data analysis to guide the design of next-generation membranes with improved mechanical resilience and operational longevity.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 8","pages":"1069–1074"},"PeriodicalIF":8.8,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144813565","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

Per- and Polyfluoroalkyl Substances in Reusable Feminine Hygiene Products 可重复使用女性卫生用品中的全氟烷基和多氟烷基物质

IF 8.8 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-07-22 DOI: 10.1021/acs.estlett.5c00553

Alyssa Wicks, Sydney Brady, Heather D. Whitehead, Thomas Hedman, Alison Zachritz, Marta Venier and Graham F. Peaslee*,

{"title":"Per- and Polyfluoroalkyl Substances in Reusable Feminine Hygiene Products","authors":"Alyssa Wicks, Sydney Brady, Heather D. Whitehead, Thomas Hedman, Alison Zachritz, Marta Venier and Graham F. Peaslee*, ","doi":"10.1021/acs.estlett.5c00553","DOIUrl":"https://doi.org/10.1021/acs.estlett.5c00553","url":null,"abstract":"Personal care products, such as cosmetics, have received attention for containing per- and polyfluoroalkyl substances (PFAS), yet limited information is known on the PFAS content in reusable feminine hygiene products, both in the United States and abroad. In this study, 59 reusable feminine hygiene products across five product categories first underwent total fluorine screening via particle-induced gamma-ray emission spectroscopy. Period underwear and reusable pads had the greatest rates of intentional PFAS use (>110 ppm total fluorine) at 33% and 25%, respectively. Subsequently, 19 of these products were chosen for targeted analysis of 31 ionic and 11 neutral PFAS. PFAS were detected in 100% of the extracted products, with 6:2 and 8:2 fluorotelomer alcohols being the most abundant compounds. Tested products were sourced from multiple markets, including North America, South America and Europe, all of which had at least one item with levels consistent with intentional fluorination. The observation of at least one product in each tested category not containing intentional fluorine indicates that PFAS use is unnecessary in all these reusable products. The results of this small initial survey, together with limited knowledge of the dermal absorption of PFAS, suggest more comprehensive PFAS exposure studies are needed.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 8","pages":"924–929"},"PeriodicalIF":8.8,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144813566","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

First Evidence on the Penetration Efficiencies of Parent Neonicotinoids and Their Metabolites across the Blood–Cerebrospinal Fluid Barrier 新烟碱类及其代谢物通过血脑脊液屏障渗透效率的第一个证据

IF 8.8 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-07-18 DOI: 10.1021/acs.estlett.5c00558

Ruyun Liu, Jun Shang, Ke Gao*, Wei Li, Shiyuan Wang and Liping Lu,

{"title":"First Evidence on the Penetration Efficiencies of Parent Neonicotinoids and Their Metabolites across the Blood–Cerebrospinal Fluid Barrier","authors":"Ruyun Liu, Jun Shang, Ke Gao*, Wei Li, Shiyuan Wang and Liping Lu, ","doi":"10.1021/acs.estlett.5c00558","DOIUrl":"https://doi.org/10.1021/acs.estlett.5c00558","url":null,"abstract":"The ability of exogenous compounds to cross the blood–cerebrospinal fluid barrier (BCSFB) is a crucial factor in evaluating their potential neurotoxic risks. To date, limited research has reported the presence of parent neonicotinoids (p-NEOs) and metabolite NEOs (m-NEOs) in cerebrospinal fluid (CSF), not to mention their penetration efficiencies across BCSFB. Nine p-NEOs and 5 m-NEOs were measured in 159 paired serum and CSF samples. Seven p-NEOs and 5 m-NEOs were frequently detected in serum (median of 0.030–0.295 ng/mL), while 5 p-NEOs and 5 m-NEOs were commonly found in CSF (median of 0.032–0.283 ng/mL). Notably, concentrations of imidacloprid-olefin and acetamiprid-N-desmethyl exceeded those of imidacloprid (IMI) and acetamiprid (ACE), indicating that IMI and ACE predominantly existed as metabolites. The ratios (RCSF/serum) of NEO concentrations in CSF to those in paired serum were used to estimate penetration efficiencies across BCSFB. Their RCSF/serum (median of 0.468–0.992) were positively correlated with log P (r = 0.673, p = 0.033) while negatively correlated with water solubility (r = −0.745, p = 0.013), highlighting lipophilicity as a principal factor influencing BCSFB penetration. Additionally, RCSF/serum was significantly correlated with white blood cell count in CSF. This study provided a unique delineation of differential behaviors of p-NEOs and m-NEOs in crossing BCSFB, offering a novel perspective on their neurotoxic risks.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 8","pages":"930–936"},"PeriodicalIF":8.8,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144813456","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

New Methodology for Characterizing Ion Permeability and Selectivity of Ion-Exchange Membranes 表征离子交换膜离子渗透性和选择性的新方法

IF 8.8 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-07-18 DOI: 10.1021/acs.estlett.5c00597

Junwei Zhang, Amit N. Shocron, Victoria Meola, Camille Violet, Zhongren Jiao, Paloma I. Lenz, Yanghua Duan, Ruoyu Wang, Arpita Iddya and Menachem Elimelech*,

{"title":"New Methodology for Characterizing Ion Permeability and Selectivity of Ion-Exchange Membranes","authors":"Junwei Zhang, Amit N. Shocron, Victoria Meola, Camille Violet, Zhongren Jiao, Paloma I. Lenz, Yanghua Duan, Ruoyu Wang, Arpita Iddya and Menachem Elimelech*, ","doi":"10.1021/acs.estlett.5c00597","DOIUrl":"https://doi.org/10.1021/acs.estlett.5c00597","url":null,"abstract":"Ion-exchange membranes (IEMs) are critical to electrochemical ion-separation technologies for environmental and energy applications. Although advancements in separation performance have been frequently reported, significant challenges in evaluating mixed-salt IEM performance under electro-driven conditions remain largely overlooked. Here, we present a new method for the rapid and standardized characterization of ion transport properties for IEMs in mixed-salt systems. Using a modified Goldman-Hodgkin-Katz equation, we demonstrate that individual ion permeability can be obtained from IEM conductance measurements with mixed-salt linear sweep voltammetry experiments. Under low-current conditions, the ion permeability ratio can be converted into different metrics for quantification of ion–ion selectivity including current-based and flux-based selectivity. Our findings also reveal substantial differences between ion transport properties of IEMs under single-salt and mixed-salt conditions, highlighting the critical role of competing ions in transport experiments. Overall, this new approach provides an efficient framework to evaluate IEM performance in environmentally relevant conditions, facilitating cross-membrane performance comparison and establishing the foundation to elucidate the structure-property-performance relationships for IEMs in mixed-salt systems.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 8","pages":"1082–1088"},"PeriodicalIF":8.8,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144813422","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

Retrospective Analysis of Drinking Water Microcosm Microbiomes Reveals an Apparent Antagonistic Relationship between Neochlamydia and Legionella 饮用水微生物群落的回顾性分析揭示了新衣原体和军团菌之间明显的拮抗关系

IF 8.8 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-07-17 DOI: 10.1021/acs.estlett.5c00590

Fernando A. Roman Jr., Thomas Byrne, Rebekah L. Martin, Didier Mena-Aguilar, Rania E. Smeltz, Rachel Finkelstein, Amy Pruden and Marc A. Edwards*,

{"title":"Retrospective Analysis of Drinking Water Microcosm Microbiomes Reveals an Apparent Antagonistic Relationship between Neochlamydia and Legionella","authors":"Fernando A. Roman Jr., Thomas Byrne, Rebekah L. Martin, Didier Mena-Aguilar, Rania E. Smeltz, Rachel Finkelstein, Amy Pruden and Marc A. Edwards*, ","doi":"10.1021/acs.estlett.5c00590","DOIUrl":"https://doi.org/10.1021/acs.estlett.5c00590","url":null,"abstract":"Legionella pneumophila (Lp) can sometimes establish in drinking water microbial communities and infect individuals inhaling contaminated aerosols. The premise plumbing portion of the drinking water distribution system is often especially vulnerable to Lp growth. Innovative approaches to intentionally manipulate the microbial ecology to control Lp have been proposed but remain elusive. Here, we retrospectively analyzed 16S rRNA gene amplicon sequences and droplet digital PCR data in samples derived from prior drinking water studies, wherein some inexplicable stochastic variations in the Lp occurrence were observed in replicate microcosms. We discovered an apparent antagonistic relationship between Legionella and Neochlamydia. This relationship was noted across three water sources (Flint, Detroit, and Blacksburg) and was at least partially mediated by the presence of copper, through either copper pipes or a dosed range of 0–2000 μg/L total copper. The observations of this study, which was conducted under realistic drinking water conditions harboring mixed microbial communities, are consistent with recent pure culture studies reporting that Legionella amoebic uptake may be inhibited when Neochlamydia are established as amoebal endosymbionts. The findings may help explain the apparent stochastic behavior of Lp in field and research settings and may open a door to new engineered ecological control strategies for Lp.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 8","pages":"990–996"},"PeriodicalIF":8.8,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acs.estlett.5c00590","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144813652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing the Detectable Chemical Space in an Effluent-Dominated Stream: Non-Target Analysis Reveals Potential Rapid In Situ Product Formation 在以流出物为主的流中增强可检测的化学空间：非目标分析揭示了潜在的快速原位产物形成

IF 8.8 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-07-17 DOI: 10.1021/acs.estlett.5c00509

Alyssa L. Mianecki, and , Gregory H. LeFevre*,

{"title":"Enhancing the Detectable Chemical Space in an Effluent-Dominated Stream: Non-Target Analysis Reveals Potential Rapid In Situ Product Formation","authors":"Alyssa L. Mianecki,  and , Gregory H. LeFevre*, ","doi":"10.1021/acs.estlett.5c00509","DOIUrl":"https://doi.org/10.1021/acs.estlett.5c00509","url":null,"abstract":"Effluent-dominated streams are increasingly common in temperate regions and have potential for adverse ecological and human health effects. Nontarget analysis (NTA) using high resolution mass spectrometry (HRMS) is an emerging approach to examine complex chemical mixtures in the environment. Here, we leveraged archived samples previously analyzed for 154 target contaminants in a well-studied temperate region effluent-dominated stream and compared target results with suspected compounds from NTA. NTA enhanced the detectable chemical space by 20 times compared to target analysis alone. Target analysis was biased toward larger mass contaminants compared to the compounds detected with NTA, indicating that target analysis was not fully representative of the compound distribution for the effluent-impacted waters. Hierarchical cluster analysis exposed clusters of compounds significantly upregulated at the effluent/stream mixing zone, revealing evidence of a novel phenomenon wherein transformation product and/or metabolite formation appears to occur rapidly in situ. Additionally, an exposure-driven NTA retrospective analysis uncovered upregulation of 7endocrine-disrupting compounds that may explain prior bioassay results. These findings have urgent implications for ecosystems and downstream communities experiencing de facto wastewater reuse conditions. NTA offers enhanced characterization of complex mixtures in effluent-dominated streams and can reveal novel mixture dynamics otherwise masked when employing target analysis alone.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 8","pages":"1038–1045"},"PeriodicalIF":8.8,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acs.estlett.5c00509","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144813658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0