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  1. Artikel ; Online: Distribution of select per- and polyfluoroalkyl substances at a chemical manufacturing plant.

    Schumacher, Brian A / Zimmerman, John H / Williams, Alan C / Lutes, Christopher C / Holton, Chase W / Escobar, Elsy / Hayes, Heidi / Warrier, Rohit

    Journal of hazardous materials

    2023  Band 464, Seite(n) 133025

    Abstract: Per- and polyfluoroalkyl substances (PFAS) are used in various industrial products; however, they pose serious health risks. In this study, soil, soil gas, and groundwater samples were collected at a PFAS manufacturing facility in New Jersey, USA, to ... ...

    Abstract Per- and polyfluoroalkyl substances (PFAS) are used in various industrial products; however, they pose serious health risks. In this study, soil, soil gas, and groundwater samples were collected at a PFAS manufacturing facility in New Jersey, USA, to determine the presence and distribution of PFASs from the soil surface to groundwater and at various distances from the presumed source. Fluorotelomer alcohols (FTOHs) were detected in soil (< 0.26-36.15 ng/g) and soil gas (160-12,000 E µg/m
    Sprache Englisch
    Erscheinungsdatum 2023-11-19
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article
    ZDB-ID 1491302-1
    ISSN 1873-3336 ; 0304-3894
    ISSN (online) 1873-3336
    ISSN 0304-3894
    DOI 10.1016/j.jhazmat.2023.133025
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel ; Online: Analysis of Legacy and Novel Neutral Per- and Polyfluoroalkyl Substances in Soils from an Industrial Manufacturing Facility.

    Henderson, W Matthew / Evich, Marina G / Washington, John W / Ward, Thomas T / Schumacher, Brian A / Zimmerman, John H / Kim, Yung D / Weber, Eric J / Williams, Alan C / Smeltz, Marci G / Glinski, Donna A

    Environmental science & technology

    2024  

    Abstract: Per- and polyfluoroalkyl substances (PFASs) have been detected in an array of environmental media due to their ubiquitous use in industrial and consumer products as well as potential release from fluorochemical manufacturing facilities. During their ... ...

    Abstract Per- and polyfluoroalkyl substances (PFASs) have been detected in an array of environmental media due to their ubiquitous use in industrial and consumer products as well as potential release from fluorochemical manufacturing facilities. During their manufacture, many fluorotelomer (FT) facilities rely on neutral intermediates in polymer production including the FT-alcohols (FTOHs). These PFAS are known to transform to the terminal acids (perfluoro carboxylic acids; PFCAs) at rates that vary with environmental conditions. In the current study on soils from a FT facility, we employed gas chromatography coupled with conventional- and high-resolution mass spectrometry (GC-MS and GC-HRMS) to investigate the profile of these precursor compounds, the intermediary secondary alcohols (sFTOHs), FT-acrylates (FTAcr), and FT-acetates (FTAce) in soils around the former FT-production facility. Of these precursors, the general trend in detection intensity was [FTOHs] > [sFTOHs] > [FTAcrs], while for the FTOHs, homologue intensities generally were [12:2 FTOH] > [14:2 FTOH] > [16:2 FTOH] > [10:2 FTOH] > [18:2 FTOH] > [20:2 FTOH] > [8:2 FTOH] ∼ [6:2 FTOH]. The corresponding terminal acids were also detected in all soil samples and positively correlated with the precursor concentrations. GC-HRMS confirmed the presence of industrial manufacturing byproducts such as FT-ethers and FT-esters and aided in the tentative identification of previously unreported dimers and other compounds. The application of GC-HRMS to the measurement and identification of precursor PFAS is in its infancy, but the methodologies described here will help refine its use in tentatively identifying these compounds in the environment.
    Sprache Englisch
    Erscheinungsdatum 2024-06-03
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ISSN 1520-5851
    ISSN (online) 1520-5851
    DOI 10.1021/acs.est.3c10268
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel: A study of hazardous waste minimization in Europe

    Williams, Alan C

    Land use & environment law review 19. 1988, S. 601-691

    public and private strategies to reduce production of hazardous waste

    1988  

    Verfasserangabe Alan C. Williams
    Schlagwörter Sonderabfall ; EU-Staaten
    Sprache Englisch
    Verlag Thomsen West
    Erscheinungsort Eagan, Minn.
    Dokumenttyp Artikel
    ZDB-ID 424264-6
    ISSN 0192-8309
    Datenquelle ECONomics Information System

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