Person:
Selinka, Hans-Christoph

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Selinka
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Hans-Christoph
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Enddatum: 2019 × Anfangsdatum: 2018 ×

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  • Vorschaubild
    Veröffentlichung
    Antibiotics and Antibiotic Resistances in the Environment
    (2018) Adler, Nicole; Balzer, Frederike; Blondzik, Katrin; Brauer, Frank; Chorus, Ingrid; Ebert, Ina; Fiedler, Traute; Förster, Christina; Heidemeier, Joachim; Grummt, Tamara; Hein, Arne; Helmecke, Manuela; Hilliges, Falk; Kirst, Ingo; Konradi, Sabine; Klasen, Jutta; Küster, Anette; Krause, Bernd; Pirntke, Ulrike; Roskosch, Andrea; Schönfeld, Jens; Selinka, Hans-Christoph; Straff, Wolfgang; Szewzyk, Regine; Westphal-Settele, Kathi; Deutschland. Umweltbundesamt
    Environmental aspects have so far only partially been addressed in the discussion of antimicrobial resistance. To bring this issue into focus, ⁠UBA⁠ compiled background information and data on the topic 'Antibiotics and antimicrobial resistance in the environment'. The results show that previously considered requirements for reduction, from the perspective of UBA, are insufficient to adequately protect health and the environment. UBA sees urgent need for improvement and proposes possible options for action.
  • Vorschaubild nicht verfügbar
    Veröffentlichung
    A new approach to testing the efficacy of drinking water disinfectants
    (2018) Frohnert, Anne; Grunert, Andreas; Selinka, Hans-Christoph; Szewzyk, Regine
    New disinfection procedures are being developed and proposed for use in drinking-water production. Authorising their use requires an effective test strategy that can simulate conditions in practice. For this purpose, we developed a test rig working in a flow-through mode similar to the disinfection procedures in waterworks, but under tightly defined conditions, including very short contact times. To quantify the influence of DOC, temperature and pH on the efficacy of two standard disinfectants, chlorine and chlorine dioxide, simulated use tests were systematically performed. This test rig enabled quantitative comparison of the reduction of four test organisms, two viruses and two bacteria, in response to disinfection. Chlorine was substantially more effective against Enterococcus faecium than chlorine dioxide whereas the latter was more effective against the bacteriophage MS2, especially at pH values of >7.5 at which chlorine efficacies already decline. Contrary to expectation, bacteria were not generally reduced more quickly than viruses. Overall, the results confirm a high efficacy of chlorine and chlorine dioxide, validating them as standard disinfectants for assessing the efficacy of new disinfectants. Furthermore, these data demonstrate that the test rig is an appropriate tool for testing new disinfectants as well as disinfection procedures.
  • Vorschaubild
    Veröffentlichung
    Antibiotika und Antibiotikaresistenzen in der Umwelt
    (2018) Adler, Nicole; Balzer, Frederike; Blondzik, Katrin; Brauer, Frank; Chorus, Ingrid; Ebert, Ina; Fiedler, Traute; Förster, Christina; Heidemeier, Joachim; Grummt, Tamara; Hein, Arne; Helmecke, Manuela; Hilliges, Falk; Kirst, Ingo; Konradi, Sabine; Klasen, Jutta; Küster, Anette; Krause, Bernd; Pirntke, Ulrike; Roskosch, Andrea; Schönfeld, Jens; Selinka, Hans-Christoph; Straff, Wolfgang; Szewzyk, Regine; Westphal-Settele, Kathi; Deutschland. Umweltbundesamt
    Die Rolle der Umwelt wird bei der Entwicklung von Antibiotikaresistenzen bisher nur ansatzweise diskutiert. Um dieses Thema in den Focus zu bringen, veröffentlicht das ⁠UBA⁠ eine Zusammenstellung von Hintergründen und Daten zu dem Thema "Antibiotika und Antibiotikaresistenzen in der Umwelt". Die Ergebnisse zeigen, dass die  bisher berücksichtigten Anforderungen zur Minderung aus Sicht des UBA nicht reichen, um Umwelt und Gesundheit ausreichend zu schützen. Das UBA sieht dringenden Nachbesserungsbedarf und schlägt mögliche Handlungsoptionen vor.