Accession Number : ADA292675

Title :   Environmental Effects of Dredging: Critical Body Residue (CBR) Approach for Interpreting the Consequences of Bioaccumulation of Neutral Organic Contaminants.

Descriptive Note : Technical notes,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL LAB

Personal Author(s) : Dillon, Thomas M. ; Gibson, Alfreda

PDF Url : ADA292675

Report Date : DEC 1992

Pagination or Media Count : 12

Abstract : 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.

Descriptors :   *CHEMICALS, *CONTAMINANTS, *AQUATIC ORGANISMS, *DREDGING, *RESIDUES, *HEAVY METALS, DATA BASES, SIZES(DIMENSIONS), EXPOSURE(GENERAL), NEUTRAL, TOXICITY, BIBLIOGRAPHIES, METABOLISM, ENVIRONMENTAL IMPACT, ORGANIC MATERIALS, ADVERSE CONDITIONS, GUIDANCE, RESPONSE(BIOLOGY), DREDGED MATERIALS, SEDIMENTS, HOSTS(BIOLOGY), BIOASSAY, MINNOWS.

Subject Categories : Biology
      Metallurgy and Metallography
      Civil Engineering
      Solid Wastes Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE