Development and Evaluation of Consensus-Based Sediment Quality Guidelines for Freshwater Ecosystems

  • D. D. MacDonald
  • C. G. Ingersoll
  • T. A. Berger

DOI: 10.1007/s002440010075

Cite this article as:
MacDonald, D., Ingersoll, C. & Berger, T. Arch. Environ. Contam. Toxicol. (2000) 39: 20. doi:10.1007/s002440010075


Numerical sediment quality guidelines (SQGs) for freshwater ecosystems have previously been developed using a variety of approaches. Each approach has certain advantages and limitations which influence their application in the sediment quality assessment process. In an effort to focus on the agreement among these various published SQGs, consensus-based SQGs were developed for 28 chemicals of concern in freshwater sediments (i.e., metals, polycyclic aromatic hydrocarbons, polychlorinated biphenyls, and pesticides). For each contaminant of concern, two SQGs were developed from the published SQGs, including a threshold effect concentration (TEC) and a probable effect concentration (PEC). The resultant SQGs for each chemical were evaluated for reliability using matching sediment chemistry and toxicity data from field studies conducted throughout the United States. The results of this evaluation indicated that most of the TECs (i.e., 21 of 28) provide an accurate basis for predicting the absence of sediment toxicity. Similarly, most of the PECs (i.e., 16 of 28) provide an accurate basis for predicting sediment toxicity. Mean PEC quotients were calculated to evaluate the combined effects of multiple contaminants in sediment. Results of the evaluation indicate that the incidence of toxicity is highly correlated to the mean PEC quotient (R2= 0.98 for 347 samples). It was concluded that the consensus-based SQGs provide a reliable basis for assessing sediment quality conditions in freshwater ecosystems.

Copyright information

© Springer-Verlag New York Inc. 2000

Authors and Affiliations

  • D. D. MacDonald
    • 1
  • C. G. Ingersoll
    • 2
  • T. A. Berger
    • 3
  1. 1.MacDonald Environmental Sciences Ltd., 2376 Yellow Point Road, Nanaimo, British Columbia V9X 1W5, CanadaCA
  2. 2.Columbia Environmental Research Center, U.S. Geological Survey, 4200 New Haven Road, Columbia, Missouri 65201, USAUS
  3. 3.159-1410 Richmond Avenue, Houston, Texas 77006, USAUS

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