Environmental effects of dredging: Critical body residue (CBR) approach for interpreting the consequences of bioaccumulation of neutral organic contaminants. Technical notes
This technical note describes a procedure for interpreting tissue residues of neutral organic chemicals generated in 28-day dredged material bioaccumulation bioassays. This interpretive guidance uses a critical body residue (CBR) of neutral organic chemicals reported for the fathead minnow, Pirnephales pmmelas. The CBR is based on a very large U.S. Environmental Protection Agency (EPA) acute toxicity database and well accepted quantitative structure activity relation- ships (QSARs). Guidance in this technical note is not appropriate when xenobiotic metabolism of neutral organic contaminants is likely. Background The evaluation of dredged material requires an assessment of `unacceptable adverse impacts.` Testing to support this evaluation will often include sediment bioassays.
- Research Organization:
- Army Engineer Waterways Experiment Station, Vicksburg, MS (United States). Environmental Lab.
- OSTI ID:
- 111813
- Report Number(s):
- AD-A-292675/6/XAB; EEDP-04-17; TRN: 52610630
- Resource Relation:
- Other Information: PBD: Dec 1992
- Country of Publication:
- United States
- Language:
- English
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