Grossversuch 'Umweltfreundlicheres Streusalz' fuer innerstaedtische Strassen

With 69 tabs., 8 figs.SIGLETIB: FR 1089 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Modellversuche zur Verminderung der Aufnahme toxischer Schwermetalle durch Pflanzen auf Standorten mit Immissions- und Bodenbelastung

With 50 tabs.TIB: RN 8908(86-041) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Einsetzbarkeit eines Pflanzenzellkulturen-Tests fuer die vergleichende Pruefung der Metabolisierbarkeit von Pflanzenschutzmitteln durch Pflanzengewebe

With 2 figs., 184 tabs., 39 refs.SIGLETIB: FR 1088(1) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Einsetzbarkeit kuenstlicher Modelloekosysteme zum Testen von Umweltchemikalien

With 50 refs., 25 tabs., 13 figs.SIGLECopy held by FIZ Karlsruhe; available from UB/TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Modellversuche zur Verminderung der Aufnahme toxischer Schwermetalle durch Pflanzen auf Standorten mit Immissions- und Bodenbelastung Abschlussdatum: 1.11.1986

Contains many tablesTIB: RN 8908 (86-041) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Steigerung der pflanzeneigenen Abwehrmechanismen in landwirtschaftlichen Nutzpflanzen durch Resistenzinduktion. Teilprojekt: Entwicklung und Bereitstellung von resistenzinduzierenden Pflanzenstaerkungsmitteln gegen Echten und Falschen Mehltau Schlussbericht

SIGLEAvailable from TIB Hannover: F02B1255 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekForschungszentrum Juelich GmbH (Germany). Projekttraeger Biologie, Energie, Oekologie (BEO); Bundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman

Bodenoekologische Untersuchungen zur Wirkung und Verteilung von organischen Stoffgruppen (PAK, PCB) in ballungsraumtypischen Oekosystemen. Teilprojekt C: Aufnahme, Verbleib und Metabolisierung von PCB/PAK in Pflanzen bei Wachstum auf mehrfach kontaminierten Boeden. Rueckstandsanalytik von PAK und PCB in verschiedenen Matrices fuer die Teilprojekte A, C und G Abschlussbericht

Former sewage farms are areas where complex interactions occur in between the manifold chemical contaminants, the soils and the living organism. The reforesting attempts in such an area were confronted with unexpected difficulties. Over a three years period we investigated the influence of sewage farm soils and laboratory spiked sewage farm soils over Scots pines (Pinus sylvestris) and witchwoods (Sorbus aucuparia). The woods were cultivated in Mitscherlich-containers under controlled conditions. The main questions were weather the residues in the sewage farm soils have any detectable effects on the plant development and weather the use of selected contaminants (PCB 52, BaP, Cu and Cd) and their combinations in the laboratory spiked soils facilitate to clarify and to interpret this effects. The biomass production of the plants grown in sewage soils was, according to the chemical contamination and physical characteristics of the soils, lower then in the controls. The organic contaminants in the spiked soils had alone no influence on the plant growth. We could not detect any uptake of those substances via the soil-roots pathway. The heavy metals had a negative effect over the plant growth. We measured increased concentrations of those metals in different compartments of the plants. The combination of organic chemicals and heavy metals had no influence over the uptake of the firsts in plants. Still PCB 52 and BaP showed the tendency to inhibit partially the toxic effect of the heavy metals. For the analysis of PCBs in sewage field soil and plant debris a VDLUFA method for soil, sewage sludge, and compost was established. The artificial contamination of sewage field soil in a multi-tier process yielded a sufficiently homogeneous distribution of the organic contaminants for all the contamination variants. A decrease of PCB 52 due to aging was measurable, primarily during the first year of storage. After two years of storage, no further reduction of the extractable contents of active ingredient could be observed. For benzo(a)pyren, based on the data available no aging during the entire storage period could be detected with certainty. However, BaP degradation in soil is known to be slow. (orig.)SIGLEAvailable from TIB Hannover: F97B2377 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman

Evaluierung des Gefaehrdungspotentials bisher wenig beachteter Stoffeintraege in Boeden Abschlussbericht

Soil entry pathways and quantities were evaluated for substances or groups of substances which had been classified as 'so far neglected'. This was done in connection with the German Federal Soil Protection Act and against the background of a precautionary soil protection. The aim of the project was to ensure that possible soil contamination sources would not go unnoticed and subsequently result in unpleasant surprises. The soil entry pathways of nine groups of substances were determined and their quantities were estimated. Production and consumption figures as well as results form environmental analyses formed the basis for this. In many cases a broad basis of data was available, facilitating a comparison of different entries and of entry quantities with background values. In these cases entries were classified as either relevant or negligible. For some groups the data basis was insufficient and further investigation is required before an assessment will be possible. The available literature dealing with the terrestrial ecotoxicity of the substances and groups of substances has been reviewed. Unfortunately, it facilitated a comprehensive hazard assessment with regard to soil functions only in very few cases. There is considerable need for research in this area. At the end of the project a professional discussion with experts from industry, universities, and administration was held at which the results of the investigation were discussed and supplemented. The experts seconded the conclusions drawn in the report. (orig.)SIGLEAvailable from TIB Hannover: RN 8908(98-053) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekUmweltbundesamt, Berlin (Germany); Bundesministerium fuer Umwelt, Naturschutz und Reaktorsicherheit, Bonn (Germany)DEGerman