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Fig. 13 DDE residues in largescale suckers from the Columbia River Basin. Figure 2-4b repro-
duced from US EPA Region X ( 2006 )
Fig. 14 Wintering locations of North American Ospreys. Figure 2 in Martell et al. ( 2001 )
reproduced with permission from author and from The Condor, published by the Cooper
Ornithological Society
in eggs collected in 2000 from different parts of the Bay ranged from 0.4 to 1.2 ppm.
Eggshell thinning ranged from 0 to 9%. PCBs were as high as 19 ppm in eggs from
nests in the more polluted areas. A limited sample of fi sh scraps from nests in some
of the less polluted areas contained less than 0.05 ppm DDTs, corresponding to
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