FIGURE 1.3. PCBs in liver of juvenile salmon. Values are mean concentrations ± SE. The p value for the statistical comparison between Hylebos fish and reference site fish is shown on the graph. n = number of analyses. ppb = parts per billion. Reference sites for chum salmon include Puyallup Tribal Hatchery, and Skokomish Estuary. Reference sites for chinook salmon include Puyallup State Hatchery, Nisqually Hatchery, and Nisqually Estuary. Analytes included in the sum of PCBs are listed in Appendix B.

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