SCRAM: A scoring and ranking system for persistent, bioaccumulative, and toxic substances for the North American Great Lakes |
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| Authors: | Erin M. Snyder Shane A. Snyder John P. Giesy Shari A. Blonde Gary K. Hurlburt Cheryl L. Summer Rachel R. Mitchell Dennis M. Bush |
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| Affiliation: | (1) Department of Zoology, Michigan State University, National Food Safety and Toxicology Center and Institute of Environmental Toxicology, 48824 East Lansing, MI, USA;(2) Surface Water Quality Division, Michigan Dept. of Environmental Quality, PO Box 30273, 48909-7773 Lansing, MI, USA |
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| Abstract: | Part I (Snyder et al., 1999a) of this series introduced SCRAM, a chemical scoring and ranking system for contaminants of the North American Great Lakes. Here, in Part II, scoring of the bioaccumulation potential and persistence of chemicals is discussed, including acceptable types of data, specific scoring instructions, and the basis for criteria and scores for these categories of the system. Difficulties encountered during the process of determining which types of data adequately represent the properties of interest are discussed. Also, justification is given for an emphasis on scoring on the basis of persistence. Deceased The scoring and ranking system in the form of a Lotus 12397 spreadsheet and a description of its use are available on the Internet at http://www.epa.gov/toxteam/pbtrept/ |
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| Keywords: | Acute toxicity bioaccumulation chemical scoring and ranking chronic toxicity hazard North American Great Lakes persistence priority pollutants SCRAM (Chemical Scoring and Ranking Assessment Model) uncertainty water pollution |
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