IR- und1H-Kernresonanzmessungen an InO(OH)

The Science of Nature -     

Leitfaden zur Beurteilung von Boden-Kontaminationen

This article investigates to which extent presently obtainable data can sufficiently evaluate soil contamination. Relevant data pertaining to this question are tabulated. Risk assessments are made for particular contaminations on the basis of the compiled data. The proposed procedure is a guideline for the practical evaluation of cases of soil contamination by organic pollutants. Analyses are made for soil compartments, including risk assessments for groundwater. Evaluations are directed at protection of resources and plant growth. The project aims at facilitating the recognition of research deficiencies and at suggesting appropriate measures.     

QSAR-Modelle Interpretation und Prognose der Biokonzentration und aquatischen Toxizit?t

Seit Beginn der sechziger Jahre sind Methoden entwickelt worden, mit deren Hilfe es m?glich ist,biologische Aktivit?ten von Stoffen anhand ihrerphysikochemischen undstrukturellen Eigenschaften zu beschreiben. Dieser Beitrag bewertet kritisch, wie diese alsStruktur-Wirkungs-Beziehungen bekannten Verfahren geeignet sind, zum Verst?ndnis und zur Vorhersage biologischer Wirkungen beizutragen. Als Beispiele dienen die AspekteBioakkumulation undToxizit?t gegen aquatische Lebewesen. Die bisher entwickelten Modelle und ihre Einsatzm?glichkeiten werden vorgestellt.     

Ökobilanzen — Fortschrittsbericht

With efforts made by the International Standard Organization (ISO) to standardize life cycle assessment procedures, considerable progress could be reached in the year 1996. Standardizations of the “Principles and Framework” (ISO 14040) and the “Inventory” (ISO 14041) will come into force in 1997. Drafts of the “Impact Assessment” and “Interpretation” were specified in 1996. The case studies presented here give an overview on different approaches of “Impact Assessment” and “Interpretation”. The main advantage of an ISO-standard will not be the standardization of the impact assessment approach itself. More important than merely the outcome of a life cycle assessment is to assign additional information on the reliability of the results in respect to the formulation of questions.