Measuring bioaccumulation of contaminants from field-collected sediment in freshwater organisms: a critical review of laboratory methods.

The effect of organism density on bioaccumulation of contaminants from sediment in three aquatic test species: a case for standardizing to sediment organic carbon.

Laboratory methods for measuring bioaccumulation of organic contaminants from sediment into aquatic organisms continue to improve, but some aspects are still in need of standardization. From a review of published methods, we noted that the loading density of organisms was determined inconsistently and was primarily based on either sediment volume or total organic carbon (TOC). The rationale mai...

Methods for Measuring the Toxicity and Bioaccumulation of Sediment-associated Contaminants with Freshwater Invertebrates Second Edition

Standard Guide for Determination of the Bioaccumulation of Sediment- Associated Contaminants by Benthic Invertebrates'

1.1 This guide covers procedures for measuring the bioac,cumulation of sediment-associatid contaminants by infaunal .invertebrates. Marine, estuarine, and freshwater sediments are a major sink for chemicals that sorb preferentially to particles, 'such as organic compounds with high octanol-waterpartitioning coefficients (KO,) (for example, polychlorinated ,biphenyls (PCBs) and dichlorodiphenylt...

Evaluation of Field Bioaccumulation as a Monitoring Tool

19. SECURITY CLASSIFICATION OF ABSTRACT 18. SECURITY CLASSIFICATION OF THIS PAGE 16. PRICE CODE 15. NUMBER OF TEXT PAGES: 40 13. ABSTRACT Laboratory methods for measuring body burdens of low-level chemical contaminants in aquatic organisms traditionally have required sizeable amounts of tissue for analysis (i.e., 10 to 30 grams wet weight of tissue per sample). Predisposal testing of dredged ma...

Sediment Extraction Using Deposit-Feeder Gut Fluids: A Potential Rapid Tool for Assessing Bioaccumulation Potential of Sediment-Associated Contaminants

Environmental Laboratory Approved for public release; distribution is unlimited. The contents of this report are not to be used for advertising, publication , or promotional purposes. Citation of trade names does not constitute an official endorsement or approval of the use of such commercial products. The findings of this report are not to be construed as an official Department of the Army pos...