Description: Das Projekt "Untersuchung der Carzinogenitaet von kuenstlich erzeugten Mineralfasern im Vergleich zu Asbest" wird vom Umweltbundesamt gefördert und von Fraunhofer-Institut für Toxikologie und Aerosolforschung durchgeführt. Objective: To determine the carcinogenic risks through inhalation of man-made mineral fibers in comparison with the risks of asbestos exposure. General Information: The fibers are milled down to inhalable sizes and their distribution examined by scanning electron microscopy. Fibers are dispersed by a vibrating bed aerosol generator for animal exposure in a specially constructed exposure unit. Groups of about 100 rats are exposed to crocidolite, fibrous glass and rock wool. The control group inhales titanium dioxide. After exposure, animals are kept till their natural death. Organs are then examined histo-pathologically for tumours. Additionally, smaller groups of animals are exposed to the fiber aerosol and scarified at different times after the treatment for determination of the number of fibers in lungs.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Inhalation ? Kanzerogenität ? Titandioxid ? Rasterelektronenmikroskopie ? Glasfaser ? Mineralstoff ? Schadstoffwirkung ? Steinwolle ? Elektronenmikroskopie ? Krokydolith ? Aerosol ? Asbest ? Kanzerogenitätsprüfung ? Ratte ? Versuchstier ? Künstliche Mineralfaser ? Größenverteilung ? Kunstfaser ? Lunge ? Mineralfaser ? Risikoanalyse ? Toxikologie ? Tumor ? Vergleichsanalyse ? Tier ? Risiko ? Aerosolgenerator ?
Region: Lower Saxony
Bounding box: 9.16667° .. 9.16667° x 52.83333° .. 52.83333°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 1985-01-01 - 1985-12-31
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