Environmental Science & Technology Letters Environ.最新文献_第8页

IF 8.9 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-05-13

Juan Li, Yuyang Chen, Yali Li, Song Liu, Minde An, Bo Yao, Luke M. Western, Matthew Rigby, Anita L. Ganesan, Simon O’Doherty, Jianxiong Sheng, Paul B. Krummel, Honglong Yang, Haibo Yu, Liqu Chen, Huizhong Shen, Jianhuai Ye, Chen Wang, Xin Yang, Tzung-May Fu and Lei Zhu*,

引用次数: 0

IF 8.9 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-05-13

Min Han, Biao Jin* and Hans Peter H. Arp*,

引用次数: 0

IF 8.9 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-05-13

Xiaozhou Li, Yuqi Guo, Deyan Wu, Jia Xu, Bin Han, Xueli Yang, Duan Ju, Ying Zhang, Zhipeng Bai, Chen Li* and Liwen Zhang*,

引用次数: 0

IF 8.9 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-05-13

Mindong Ma, Ying Yang, Ziye Zhang, Daoyuan Yang, Song Cui, Haixia Sui* and Lihui An*,

引用次数: 0

IF 8.9 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-05-13

Xiang Huang, Wangjing Zhai, Wenyuan Su, Zhendong Yang, Wenqing Liang, Pu Wang, Ting Ruan* and Guibin Jiang,

引用次数: 0

IF 8.9 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-05-13

Yan Wang, Zhenya Duan, Yi Tang, Shuxiao Wang, Zhijian Li, Yuying Cui, Feihu Peng, Haodong Zhang, Yanjun Jia, Pei Fang and Qingru Wu*,

引用次数: 0

The Use of Air Pollution Controls to Reduce the Gas-phase Emissions of Per- and Polyfluoroalkyl Substances from a Fluoropolymer Manufacturing Facility. 使用空气污染控制措施减少含氟聚合物生产设施的全氟烷基和多氟烷基物质的气相排放。

IF 8.9 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-05-12 DOI: 10.1021/acs.estlett.5c00402

Erin P Shields, William R Roberson, Jeffrey V Ryan, Stephen R Jackson

{"title":"The Use of Air Pollution Controls to Reduce the Gas-phase Emissions of Per- and Polyfluoroalkyl Substances from a Fluoropolymer Manufacturing Facility.","authors":"Erin P Shields, William R Roberson, Jeffrey V Ryan, Stephen R Jackson","doi":"10.1021/acs.estlett.5c00402","DOIUrl":"10.1021/acs.estlett.5c00402","url":null,"abstract":"The efficacies of a thermal oxidizer and carbon adsorption beds used as air pollution control technologies at a fluoropolymer manufacturing facility were evaluated for nonpolar volatile fluorinated compounds (VFCs) using Other Test Method (OTM)-50. The target compounds for OTM-50 include industrial fluorocarbons, common products of incomplete combustion, reaction byproducts, and common refrigerants. The thermal oxidizer's emissions were found to contain tetrafluoromethane, CF4. Emissions from the carbon adsorption beds used to scrub the fugitive air emissions for two vinyl ether synthesis facilities were sampled and the analyses showed that the compounds with boiling points below 100 °C were not effectively adsorbed. This research shows that the facility's thermal oxidizer is effective at destroying high concentration streams of perfluoroalkyl substances (PFAS) and that the carbon beds can reduce emissions for compounds with boiling points over 100 °C.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 6","pages":"768-773"},"PeriodicalIF":8.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12180749/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144473414","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

The Use of Air Pollution Controls to Reduce the Gas-Phase Emissions of Per- and Polyfluoroalkyl Substances from a Fluoropolymer Manufacturing Facility 使用空气污染控制措施减少含氟聚合物生产设施的全氟烷基和多氟烷基物质的气相排放

IF 8.9 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-05-12 DOI: 10.1021/acs.estlett.5c0040210.1021/acs.estlett.5c00402

Erin P. Shields*, William R. Roberson, Jeffrey V. Ryan and Stephen R. Jackson,

{"title":"The Use of Air Pollution Controls to Reduce the Gas-Phase Emissions of Per- and Polyfluoroalkyl Substances from a Fluoropolymer Manufacturing Facility","authors":"Erin P. Shields*, William R. Roberson, Jeffrey V. Ryan and Stephen R. Jackson, ","doi":"10.1021/acs.estlett.5c0040210.1021/acs.estlett.5c00402","DOIUrl":"https://doi.org/10.1021/acs.estlett.5c00402https://doi.org/10.1021/acs.estlett.5c00402","url":null,"abstract":"The efficacies of a thermal oxidizer and carbon adsorption beds used as air pollution control technologies at a fluoropolymer manufacturing facility were evaluated for nonpolar volatile fluorinated compounds (VFCs) using Other Test Method (OTM)-50. The target compounds for the synthesis of OTM-50 include industrial fluorocarbons, common products of incomplete combustion, reaction byproducts, and common refrigerants. The thermal oxidizer’s emissions were found to contain tetrafluoromethane (CF4). Emissions from the carbon adsorption beds used to scrub the fugitive air emissions for two vinyl ether synthesis facilities were sampled, and the analyses showed that the compounds with boiling points below 100 °C were not effectively adsorbed. This research shows that the facility’s thermal oxidizer is effective at destroying high-concentration streams of perfluoroalkyl substances (PFAS) and that the carbon beds can reduce emissions for compounds with boiling points above 100 °C.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 6","pages":"768–773 768–773"},"PeriodicalIF":8.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144238829","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

Transformation of Polyfluoroalkyl Precursors in AFFF-Contaminated Concrete 多氟烷基前体在afff污染混凝土中的转化

IF 8.9 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-05-10 DOI: 10.1021/acs.estlett.5c0025110.1021/acs.estlett.5c00251

David Lutes, Ju Zhang, Lakshya Sethi, Andrew Boyd, Richard Arnseth, Ian Ross and Jinxia Liu*,

{"title":"Transformation of Polyfluoroalkyl Precursors in AFFF-Contaminated Concrete","authors":"David Lutes, Ju Zhang, Lakshya Sethi, Andrew Boyd, Richard Arnseth, Ian Ross and Jinxia Liu*, ","doi":"10.1021/acs.estlett.5c0025110.1021/acs.estlett.5c00251","DOIUrl":"https://doi.org/10.1021/acs.estlett.5c00251https://doi.org/10.1021/acs.estlett.5c00251","url":null,"abstract":"The contamination of concrete by per- and polyfluoroalkyl substances (PFAS) derived from aqueous film-forming foams (AFFFs) at impacted sites is a newly recognized issue, but the behavior and transformation of PFAS within concrete and in its vicinity remain largely unexplored. In this study, we discovered amide-based precursors from an electrochemical fluorination (ECF) AFFF, specifically, N-(3-(dimethylamino)propyl)-perfluoroalkylamides (PFAAAm or AmPr-FAAd), can transform into perfluoroalkyl carboxylates (PFCAs) when AFFF solutions or individual PFAS were exposed to concrete. This transformation was attributed to alkaline hydrolysis driven by leaching of Ca(OH)2 from concrete, which raises the solution pH. In the same experiments, the generation of perfluoroalkyl sulfonamides (FASAs) was also observed, but their precursors remained unidentified. Meanwhile, during the validation of PFAS extraction methods from AFFF-contaminated concrete powder, PFCAs and FASAs were similarly generated during the pre-equilibration step, further confirming the occurrence of hydrolysis. Further investigations using four sulfonamide-based precursors suggested that their rapid decrease in aqueous concentration was likely due to low solubility and sorption to container walls and concrete powder, rather than chemical transformation, which suggests the relatively high stability of these perfluoroalkyl sulfonamide precursors. The exact precursors to FASAs remain unresolved, highlighting the need for research into PFAS behavior in concrete.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 6","pages":"747–753 747–753"},"PeriodicalIF":8.9,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144238816","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

MoleTrans: Browser-Based Webtool for Postanalysis on Molecular Chemodiversity and Transformation of Dissolved Organic Matters via FT-ICR MS MoleTrans：基于浏览器的Webtool，用于通过FT-ICR MS分析溶解有机物的分子化学多样性和转化

IF 8.9 2区环境科学与生态学

Environmental Science & Technology Letters Environ. Pub Date : 2025-05-09 DOI: 10.1021/acs.estlett.5c0028410.1021/acs.estlett.5c00284

Jibao Liu, Bei Zhang, Qing-Long Fu*, Toshihiro Isobe, Rongjun Gao, Yuansong Wei, Eunsang Kwon, Zhineng Hao, Wei An, Rong Qi and Manabu Fujii*,

{"title":"MoleTrans: Browser-Based Webtool for Postanalysis on Molecular Chemodiversity and Transformation of Dissolved Organic Matters via FT-ICR MS","authors":"Jibao Liu, Bei Zhang, Qing-Long Fu*, Toshihiro Isobe, Rongjun Gao, Yuansong Wei, Eunsang Kwon, Zhineng Hao, Wei An, Rong Qi and Manabu Fujii*, ","doi":"10.1021/acs.estlett.5c0028410.1021/acs.estlett.5c00284","DOIUrl":"https://doi.org/10.1021/acs.estlett.5c00284https://doi.org/10.1021/acs.estlett.5c00284","url":null,"abstract":"Dissolved fractions of organic matter in natural and anthropogenic sources, also known as dissolved organic matter (DOM), play crucial roles in natural and engineering processes. Application of the Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS) has expanded dramatically for the molecular characterization of DOM in various research communities. However, data processing/mining on the detected tens of thousands of molecular formulas is complex. Here, we introduced a browser-based webtool (MoleTrans) for flexible and comprehensive postanalysis on a formula-assigned data set from FT-ICR MS. MoleTrans includes the classical but fundamental analysis/visualization techniques (e.g., chemodiversity, multivariate statistics, van Krevelen diagrams, formula composition plots, Kendrick Mass Defect (KMD) based homologous series analysis). Users can explore the putative molecular transformation relations in single or multiple samples using a Paired Mass Distance (PMD) network in a flexible manner (e.g., user-defined mass errors and reference transformation groups, etc.). This unique tool also supports the machine learning (ML) workflow (data processing and training models) for explaining the molecular transformation behaviors between samples (e.g., exploring the disappeared, resistant, and newly appeared formulas during the transformation). Therefore, MoleTrans provides the opportunity to unravel the molecular fingerprint in DOM mixtures in a comprehensive, flexible, and reproducible way.","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 6","pages":"725–730 725–730"},"PeriodicalIF":8.9,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144239052","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