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  1. Artikel: Previously unidentified sources of perfluoroalkyl and polyfluoroalkyl substances from building materials and industrial fabrics

    Janousek, Raphael M / Knepper, Thomas P / Lebertz, Stephan

    Environmental science. 2019 Nov. 13, v. 21, no. 11

    2019  

    Abstract: Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are applied during the production of various consumer and industrial goods. As a consequence of their use in building materials and fabrics, unreacted nonpolymeric PFASs might enter the environment by ...

    Abstract Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are applied during the production of various consumer and industrial goods. As a consequence of their use in building materials and fabrics, unreacted nonpolymeric PFASs might enter the environment by evaporation or urban run-off. Since the PFAS content of building materials and industrial fabrics is hardly investigated, studies have to be performed in order to assess their total PFAS load. Building material samples (n = 23) and fabric samples (n = 28) were collected and their PFAS content was investigated. A total of 29 PFASs were analyzed (chain length in the range of C4–C14). PFASs of diverse chain lengths were detected in 53% of the analyzed samples. The sum of PFASs for awning materials and coating samples were amongst the highest. Furthermore, PFASs were detected in the majority of fabrics for maritime applications, public transport seat covers and fluoropolymer facade materials. To the best of our knowledge, this study was the first to investigate the PFAS concentrations in fabrics for maritime applications, fluoropolymer facade materials and coatings for architectural purposes. Thus, new sources of PFASs were identified that might lead to release of PFASs into the environment.
    Schlagwörter coatings ; construction materials ; evaporation ; fabrics ; perfluorocarbons ; runoff
    Sprache Englisch
    Erscheinungsverlauf 2019-1113
    Umfang p. 1936-1945.
    Erscheinungsort The Royal Society of Chemistry
    Dokumenttyp Artikel
    ZDB-ID 2703814-2
    ISSN 2050-7895 ; 2050-7887
    ISSN (online) 2050-7895
    ISSN 2050-7887
    DOI 10.1039/c9em00091g
    Datenquelle NAL Katalog (AGRICOLA)

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  2. Artikel ; Online: Previously unidentified sources of perfluoroalkyl and polyfluoroalkyl substances from building materials and industrial fabrics.

    Janousek, Raphael M / Lebertz, Stephan / Knepper, Thomas P

    Environmental science. Processes & impacts

    2019  Band 21, Heft 11, Seite(n) 1936–1945

    Abstract: Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are applied during the production of various consumer and industrial goods. As a consequence of their use in building materials and fabrics, unreacted nonpolymeric PFASs might enter the environment by ...

    Abstract Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are applied during the production of various consumer and industrial goods. As a consequence of their use in building materials and fabrics, unreacted nonpolymeric PFASs might enter the environment by evaporation or urban run-off. Since the PFAS content of building materials and industrial fabrics is hardly investigated, studies have to be performed in order to assess their total PFAS load. Building material samples (n = 23) and fabric samples (n = 28) were collected and their PFAS content was investigated. A total of 29 PFASs were analyzed (chain length in the range of C
    Mesh-Begriff(e) Construction Materials/analysis ; Environmental Monitoring/methods ; Environmental Pollutants/analysis ; Fluorocarbons/analysis ; Fluorocarbons/chemistry ; Textiles/analysis
    Chemische Substanzen Environmental Pollutants ; Fluorocarbons
    Sprache Englisch
    Erscheinungsdatum 2019-06-20
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2703814-2
    ISSN 2050-7895 ; 2050-7887
    ISSN (online) 2050-7895
    ISSN 2050-7887
    DOI 10.1039/c9em00091g
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel: Trace organic chemical pollutants from the lake waters of San Pablo City, Philippines by targeted and non-targeted analysis

    Dimzon, Ian Ken D / Morata, Ann Selma / Müller, Janine / Yanela, Roy Kristian / Lebertz, Stephan / Weil, Heike / Perez, Teresita R / Müller, Jutta / Dayrit, Fabian M / Knepper, Thomas P

    Science of the total environment. 2018 Oct. 15, v. 639

    2018  

    Abstract: More than half of the freshwater lakes in the Philippines are small with surface areas of <2 km2. The dynamics in these lakes are different from those in the bigger lakes. This study was conducted to determine the organic pollutants and their sources in ... ...

    Abstract More than half of the freshwater lakes in the Philippines are small with surface areas of <2 km2. The dynamics in these lakes are different from those in the bigger lakes. This study was conducted to determine the organic pollutants and their sources in three of the seven lakes of San Pablo City in Laguna, Philippines: lakes Palakpakin, Sampaloc, and Pandin. Gas Chromatography-Mass Spectrometry (GC–MS) and Liquid Chromatography - Tandem Mass Spectrometry (LC-MS/MS) were used in the targeted and non-targeted analysis of the lake water samples. The three lakes are all volcanic crater lakes but are exposed to different anthropogenic activities, which includes domestic activities, livelihood (farming and aquaculture) and eco-tourism.Due to the presence of rice fields and fruit plantations, chlorpyrifos was detected in the three lakes while other pesticides like cypermethrin, picolinafen and quinoxyfen were additionally found in Lake Sampaloc, which is the biggest of the three lakes and located within the urbanized section of the city. Traces of different surfactants (linear alkylbenzene sulfonates, secondary alkyl sulfonates, alkyl sulfates, alkyl ether sulfates), biocide benzalkonium chloride, insect repellent diethyltoluamide, antibiotics (sulfadiazine and sulfamethoxazole), hypertension drug telmisartan, phosphate-based fire retardants, and artificial sweeteners (acesulfame, cyclamate, saccharin and sucralose) were detected in lakes Sampaloc and Palakpakin. The same surfactants, artificial sweeteners, insect repellant and phosphate-based fire retardants were also found in Lake Pandin, which is mainly used for eco-tourism activities like swimming and boating.The results of this study suggest that the organic pollutants present in the small lakes can be linked to the various human activities in the immediate lake environment. Because small lakes are more prone to environmental stresses, human activities in the said lakes must be regulated to ensure sustainable development.
    Schlagwörter acesulfame potassium ; anthropogenic activities ; antibiotics ; aquaculture ; benzalkonium chloride ; biocides ; chemical pollutants ; chlorpyrifos ; cypermethrin ; deet ; ecotourism ; flame retardants ; freshwater lakes ; fruits ; gas chromatography-mass spectrometry ; humans ; hypertension ; insect repellents ; insects ; liquid chromatography ; livelihood ; paddies ; plantations ; quinoxyfen ; saccharin ; sucralose ; sulfadiazine ; sulfamethoxazole ; sulfates ; sulfonates ; surfactants ; sustainable development ; swimming ; tandem mass spectrometry ; telmisartan ; urbanization ; Philippines
    Sprache Englisch
    Erscheinungsverlauf 2018-1015
    Umfang p. 588-595.
    Erscheinungsort Elsevier B.V.
    Dokumenttyp Artikel
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2018.05.217
    Datenquelle NAL Katalog (AGRICOLA)

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  4. Artikel ; Online: Trace organic chemical pollutants from the lake waters of San Pablo City, Philippines by targeted and non-targeted analysis.

    Dimzon, Ian Ken D / Morata, Ann Selma / Müller, Janine / Yanela, Roy Kristian / Lebertz, Stephan / Weil, Heike / Perez, Teresita R / Müller, Jutta / Dayrit, Fabian M / Knepper, Thomas P

    The Science of the total environment

    2018  Band 639, Seite(n) 588–595

    Abstract: More than half of the freshwater lakes in the Philippines are small with surface areas of <2 ... ...

    Abstract More than half of the freshwater lakes in the Philippines are small with surface areas of <2 km
    Mesh-Begriff(e) Environmental Monitoring ; Humans ; Lakes/chemistry ; Organic Chemicals/analysis ; Philippines ; Water Pollutants, Chemical/analysis
    Chemische Substanzen Organic Chemicals ; Water Pollutants, Chemical
    Sprache Englisch
    Erscheinungsdatum 2018-05-26
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2018.05.217
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Volltext online

    Zusatzmaterialien

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    Verfügbar in ZB MED Köln/Königswinter

    Zs.A 949: Hefte anzeigen Standort:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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