hmmmm... I used to personally catch Dungeness Crab from the Sound, and from the Strait of Juan de Fuca, on the northern edge of the Sound. Where Dungeness Bay is located. And I still love crab flown in from there to Fort Lauderdale, even though it must be frozen.
I wonder if the crab is likewise contaminated? And the mussels, too, that I would eat? My favorite species of crab, tasty and thin-shelled. (My husband always mispronounces them as "Dungeon" Crab, giving me an image of these creatures chained to stone walls in some dark European castle dungeon).
I hope more thorough studies are done, to include all the seafood coming out of the Puget Sound area.