Accession Number : ADA295077

Title :   Environmental Effects of Dredging. A Comparison of Three Lipid Extraction Methods.

Descriptive Note : Technical notes,

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

PDF Url : ADA295077

Report Date : MAY 1995

Pagination or Media Count : 6

Abstract : The role of lipids as the major compartment for neutral organic chemical partitioning in organism tissues has been well documented (Connell 1988; Esser 1986; Roberts, de Frietas, and Gidney 1977; Schneider 1982). Lipid normalization is used in the calculation of accumulation factors, which express the equilibrium distribution of neutral chemicals between sediments and aquatic biota (Ankley and others 1992; Ferraro and others 1990, 1991; Lake and others 1990; McFarland and others 1994; Young, Mearns, and Gossett 1991). A screening test used to estimate the bioaccumulation potential of neutral chemicals associated with dredged sediments relies on equilibrium partitioning to organism lipids (USEPA/USACE 1991). Additionally, the USEPA seeks to promulgate SQC that will require lipid normalization of data (USEPA 1993).

Descriptors :   *LIPIDS, *ACETONES, *DREDGING, *SEDIMENTS, *HEXANES, COMPUTATIONS, CHEMICALS, NEUTRAL, ENVIRONMENTAL IMPACT, EXTRACTION, NORMALIZING(STATISTICS), ACCUMULATION, AQUATIC ORGANISMS.

Subject Categories : Civil Engineering
      Organic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE