POLYCYCLIC AROMATIC-COMPOUNDS OF ENVIRONMENTAL AND OCCUPATIONAL IMPORTANCE - THEIR OCCURRENCE, TOXICITY AND THE DEVELOPMENT OF HIGH-PURITY CERTIFIED REFERENCE MATERIALS .3.

This paper describes the preparation and certification of 7 nitro-substituted and 7 oxygen-containing polycyclic aromatic compounds (ketones, oxaarenes, hydroxy-PAHs) for calibration and reference purposes in environmental and occupational analysis. Occurrence and biological activities (mutagenicity in bacterial test systems and carcinogenicity in animal test systems) are reviewed. Moreover, newly measured UV-spectroscopical data (UV maxima and molar extinction coefficients) are reported.