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PHOTO-INDUCED POLYCYCLIC AROMATIC HYDROCARBON TOXIC POTENTIALS OF NEAR SHORE LARVAL FISH HABITAT IN THE GREAT LAKES, USA
Citation:
Adams, A. D., R. A. Lehr, M. F. Simcik, D. L. Swackhamer, S A. Diamond, AND D. R. Mount. PHOTO-INDUCED POLYCYCLIC AROMATIC HYDROCARBON TOXIC POTENTIALS OF NEAR SHORE LARVAL FISH HABITAT IN THE GREAT LAKES, USA. Presented at Midwest Chapter of SETAC, Stevens Point Research Station, Treehaven, WI, January 29-30, 2003.
Description:
Photo-induced toxicity (PIT) of polycyclic aromatic hydrocarbons (PAH) has been documented in laboratory studies for both invertebrate and vertebrate aquatic organisms. PIT has not been verified in field studies for larval fish to date. Filtered water samples and larval fish were taken at 18 sites across the Great Lakes coastal ecosystem in near shore habitat, under the direction of the Great Lakes Ecological Indicators (GLEI) project. Ultraviolet light intensities were taken at five of the original 18. Photo-induced toxic potentials (PITP) developed for each site will be presented. PITP is based on light intensity, dissolved organic carbon, wavelength dependent PAH absorbance of light, and quantum yields of PAH excitation. The relative importance of these parameters will be discussed. This abstract does not necessarily reflect EPA policy.