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DESIGN OF FIELD STUDIES FOR THE MEASUREMENT OF BAFS AND BSAFS.
Citation:
Burkhard, L P. DESIGN OF FIELD STUDIES FOR THE MEASUREMENT OF BAFS AND BSAFS. Presented at Water Chemistry & Environmental Toxicology Seminar, UW-Madison, WI, February 16, 2001.
Description:
Bioaccumulation factors (BAFs) and biota-sediment accumulation factors (BSAFs) for aquatic organisms are necessary parameters for assessing the ecological risks of nonpolar organic chemicals in aquatic ecosystems. In designing a field study to measure BAFs and/or BSAFs, one of the most commonly asked questions is how many samples should be collected? To address this question, a kinetic food web model was constructed using a model river segment with a single point source of chemical, realistic ecosystem conditions, and a food web consisting of zooplankton, benthic invertebrates, forage fish and piscivorous fish. Results from the simulations will be presented and evaluated in the context of sampling designs for measuring BAFs and BSAFs for chemicals with log n-octanol/water partition coefficients ranging from 2 to 9.