Accession Number : ADA292593

Title :   Environmental Effects of Dredging. Factors Influencing Bioaccumulation of Sediment-Associated Contaminants by Aquatic Organisms. Glossary and Bibliography.

Descriptive Note : Technical notes.,

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

Personal Author(s) : McFarland, Victor A. ; Lutz, Charles H. ; Reilly, Francis J.

PDF Url : ADA292593

Report Date : AUG 1989

Pagination or Media Count : 16

Abstract : This is the fourth technical note in a series of four which outlines and describes the principal factors that determine uptake and retention of chemicals by aquatic organisms. The first three notes in the series describe factors relating to contaminants, sediment and water, and biota. This note contains a glossary of terms and a bibliography of key and recent publications in the scientific literature containing supporting data and discussion on each topic. The information contained herein is intended to assist Corps of Engineers environmental personnel in activities requiring a working knowledge of concepts and terminology in the subject of chemical uptake, retention, and elimination by aquatic organisms exposed to contaminated sediments. Bioaccumulation is the general term used to refer to the uptake and storage of chemicals by organisms from their environment through all routes of entry. Bioaccumulation includes bioconcentration, which is the direct uptake of chemicals from water alone, and is distinguished from biomagnification, which is the increase in chemical residues taken up through two or more levels of a food chain. Assessments of the potential for bioaccumulation of toxic substances associated with dredged sediments are often required in evaluations of permit requests. Thus, familiarity with the fundamental physical, biological, and chemical factors affecting bioaccumulation is necessary for performing evaluations of the ecological impacts of dredging operations. Additionally, a basic understanding of the concepts and terminology of bioaccumulation is increasingly required of environmental personnel who are involved in dredging and disposal operations which may involve contaminated sediments and legal personnel involved with regulation and litigation. pg1. JMD

Descriptors :   *BIBLIOGRAPHIES, *WATER POLLUTION, *CONTAMINATION, *AQUATIC ORGANISMS, *DREDGING, TEST AND EVALUATION, ENVIRONMENTS, IMPACT, CHEMICAL PROPERTIES, CHEMICALS, WATER, ENGINEERS, PERSONNEL, STORAGE, DISPOSAL, DREDGED MATERIALS, SEDIMENTS, LAW ENFORCEMENT, RESIDUES, DICTIONARIES, ECOLOGY, SCIENTIFIC LITERATURE.

Subject Categories : Information Science
      Solid Wastes Pollution and Control
      Biological Oceanography
      Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE