Aquatic Disposal Field Investigations, Duwamish Waterway Disposal Site, Puget Sound, Washington; Appendix C: Effects of Dredged Material Disposal on the Concentration of Mercury and Chromium in Several Species of Marine Animals.

摘要

Specimens of five species of marine organisms indigenous to Puget Sound were collected over a period of nine months for mercury and chromium analysis. The specimens were collected from two environmentally similar sites in Elliott Bay, the disposal site for 'polluted' dredged material from the Duwamish Waterway and a reference or control site. Mercury and chromium concentrations in English sole (Parophrys vetulus), Alaska and Oregon pink shrimp (Pandalus borealis and P. jordani), spot shrimp (Pandalus platyceros), sea cucumber (Parastichopus californicus), and mussel (Mytilus edulis) were not significantly different between the two sites. In all samples, the levels of mercury and chromium were low and did not exceed 0.10 ppm for mercury and 0.91 ppm for chromium. These data suggest that the disposal operation had not apparent effect upon the mercury and chromium concentrations in the five species of organisms studied. (Author)