Tissue cadmium levels were not strongly correlated with sediment cadmium levels at 
corresponding stations (Fig. 3.4.1, r 2 = 0.049). 
Tissue vs Sediment Cadmium 
0.0 0.2 0.4 0.6 0.8 1.0 1.2 
Sediment concentration - ug/g 
1.4 
1.6 
Figure 3.4.1. Tissue vs. sediment concentration of cadmium at corresponding 
stations from the EMAP/NCA-West 2003 shelf survey including samples from 
Washington, Oregon and California. 
Other parameters - The lower value in the range of non-cancer health-risk 
guideline values for total PCB was exceeded at one of 21 stations in Washington 
(WA03-0086), just north of the mouth of the Columbia River (Fig. 3.1.2). This 
observation may have resulted from the bioaccumulation of PCB in fish from within 
the Columbia River, and subsequent migration out of the estuary. The health-risk 
guideline values for all metals other than cadmium and all pesticides measured were 
not exceeded in fish collected in the EMAP/NCA-West survey. Data for all stations 
and parameters are summarized in Table 3.4.2 by state and in Table 3.4.3 by NMS 
vs. non-NMS status. 
73 
