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APPLICATION OF TOXICITY-BASED FRACTIONATION TECHNIQUES AND STRUCTURE-ACTIVITY RELATIONSHIP MODELS FOR THE IDENTIFICATION OF PHOTOTOXIC POLYCYCLIC AROMATIC HYDROCARBONS IN SEDIMENT PORE WATER
Citation:
Kosian, P A., E A. Makynen, P. D. Monson, D. R. Mount, A. Spacie, O. G. Mekenyan, AND G T. Ankley. APPLICATION OF TOXICITY-BASED FRACTIONATION TECHNIQUES AND STRUCTURE-ACTIVITY RELATIONSHIP MODELS FOR THE IDENTIFICATION OF PHOTOTOXIC POLYCYCLIC AROMATIC HYDROCARBONS IN SEDIMENT PORE WATER. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY. SETAC Press, Pensacola, FL, 17:1021-1033, (1998).
Description:
Studies conducted in our laboratory show that sediments contaminated with complex mixtures of polycyclic aromatic hydrocarbons (PAHs) can exhibit enhanced toxicity (lethality) to a variety of aquatic species when the samples are tested under ultarviolet (UV) light designed to mimic sunlight. Because sediments can contain thousands of chemicals it is diffucult to use conventional analytical techniques to identify compounds responsible for photoinduced toxicity. The study's purpose was to adapt existing toxicity identification evaluation (TIE) methods to attempt to identify those compounds contributing to the phototoxicity observed in sediment samples.