STP737

    Principles of Aquatic Hazard Evaluation as Applied to Ocean-Disposed Wastes

    Published: Jan 1981


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    Abstract

    The effects-based criteria identified in the 1977 ocean dumping regulations and associated guidelines for evaluating potential hazard of ocean-disposed wastes to aquatic organisms are reviewed. The use of these criteria, which provide for bioassay-based limiting permissible concentrations for physical phases of wastes to be compared with estimated environmental concentrations of the phases, is demonstrated in case studies of two wastes (acid-iron wastewater and dredged material) that are dumped in the ocean and one waste (formation water) that is discharged from an ocean outfall. The case studies present Lagrangian (exposure-time-dependent) assessments of the potential hazard of ocean-disposed wastes to plankton, as well as Eulerian (exposure-time-independent) evaluations of the potential hazard to nonplanktonic organisms. A plume study and models of different levels of sophistication are employed to estimate environmental concentrations of ocean-disposed materials.

    Keywords:

    hazard assessment, ocean dumping regulations, effects-based discharge criteria, bioassay-based discharge criteria, Lagrangian assessments, Eulerian assessments, chemically complex wastes, acid-iron wastewater, dredged material, formation water, acid waste disposal site in New York Bight, aquatic toxicology


    Author Information:

    Rose, CD
    Manager, Environmental Sciences Division, and director, Aquatic Toxicology Laboratory, Energy Resources Co. Inc., Cambridge, Mass.

    Ward, TJ
    Manager, Environmental Sciences Division, and director, Aquatic Toxicology Laboratory, Energy Resources Co. Inc., Cambridge, Mass.


    Paper ID: STP34154S

    Committee/Subcommittee: D19.05

    DOI: 10.1520/STP34154S


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