PAHs were detected in one or more samples. Fluoranthene was most prevalent in the samples where PAHs were detected. The EPA screening level for fluoranthene is 54,000 parts per billion, or ppb, and the highest concentration measured in Annette Islands seafood is less than 25 ppb, a very low concentration.
The Sawmill sampling area receives runoff from the former Annette Saw Mill, city streets, and industrial and commercial facilities, probably accounting for the higher concentration at that location. The levels at Tamgas Harbor may reflect residual PAHs from creosote pilings that have been there for over 60 years. The lowest level observed was in seafood from Crab Bay, one of the reference areas.
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