Show simple item record

dc.contributor.authorStruijs J
dc.contributor.authorStoltenkamp J
dc.contributor.authorStoltenkamp-Wouterse MJ
dc.date.accessioned2012-12-12T19:02:22Z
dc.date.available2012-12-12T19:02:22Z
dc.date.issued1991-06-30
dc.identifier719101001
dc.identifier.urihttp://hdl.handle.net/10029/259780
dc.description.abstractAbstract niet beschikbaar
dc.description.abstractThis report contains an appraisal of the OECD hierarchy for testing the biodegradability of industrial chemicals. A more pragmatic system is proposed which encompasses (1) selecting both the "soft" and the "hard" chemicals, (2) screening chemicals for potential biodegradability in a specified environmental compartment and (3) simulation methods. Methods of level 91) should be applicable to all chemicals, irrespective of their physico-chemical and biological properties. "Soft" chemicals can be recognized by a positive result in a Ready Biodegradability Test (RBT), wheras a negative result in a so-called Inherent Biodegradability Test (IBT) is an indication for persistence of a compound. Although RBT's have been update in 1990, they still suffer from some shortcomings. In this report simple modifications of existing methods are discussed to overcome these shortcomings together with more satisfactory methods, which have been developed the last decade. The limitations of Inherent Biodegradability Tests are evaluated and alternative techniques are proposed to make IBT's applicable to a wider range of physico-chemical properties. Recently developed useful methods, such as test for sea-water and the anaerobic compartment, proved problematic to place in the current OECD test hierachy but fitt easily in level (2) of the proposed test system.
dc.description.sponsorshipDGM/SR
dc.format.extent24 p
dc.language.isoen
dc.relation.ispartofRIVM Rapport 719101001
dc.relation.urlhttp://www.rivm.nl/bibliotheek/rapporten/719101001.html
dc.subject14nl
dc.subject91-3nl
dc.subjectoesonl
dc.subjectbiologische afbreekbaarheidnl
dc.subjectgoed afbreekbare chemicaliennl
dc.subjectslecht afbreekbare chemicaliennl
dc.subjectmethodennl
dc.subjectzeewater; het anerobe milieunl
dc.subjectoecdnl
dc.subjectbiodegradabilitynl
dc.subjectsoft chemicalsnl
dc.subjecthard chemicalsnl
dc.subjectbiological propertiesnl
dc.subjectready biodegradability testnl
dc.subjectrbt; inherent biodegradability testnl
dc.subjectibtnl
dc.subjectmethodsnl
dc.subjectsewaternl
dc.subjectanaerobic compartmentnl
dc.titleStandard methods for testing biodegradability of industrial chemicals in water ; Current status and future developmentsen
dc.title.alternativeStandaardmethoden voor het bepalen van de biologische afbreekbaarheid van industriele chemicalien in water ; huidige status en toekomstige ontwikkelingennl
dc.typeReport
dc.date.updated2012-12-12T19:02:23Z
html.description.abstractAbstract niet beschikbaar
html.description.abstractThis report contains an appraisal of the OECD hierarchy for testing the biodegradability of industrial chemicals. A more pragmatic system is proposed which encompasses (1) selecting both the "soft" and the "hard" chemicals, (2) screening chemicals for potential biodegradability in a specified environmental compartment and (3) simulation methods. Methods of level 91) should be applicable to all chemicals, irrespective of their physico-chemical and biological properties. "Soft" chemicals can be recognized by a positive result in a Ready Biodegradability Test (RBT), wheras a negative result in a so-called Inherent Biodegradability Test (IBT) is an indication for persistence of a compound. Although RBT's have been update in 1990, they still suffer from some shortcomings. In this report simple modifications of existing methods are discussed to overcome these shortcomings together with more satisfactory methods, which have been developed the last decade. The limitations of Inherent Biodegradability Tests are evaluated and alternative techniques are proposed to make IBT's applicable to a wider range of physico-chemical properties. Recently developed useful methods, such as test for sea-water and the anaerobic compartment, proved problematic to place in the current OECD test hierachy but fitt easily in level (2) of the proposed test system.


This item appears in the following Collection(s)

Show simple item record