. "6. Chemical Health Risk Assessment - Critique of Existing Practices and Suggestions for Improvement." Seafood Safety. Washington, DC: The National Academies Press, 1991.
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Seafood Safety
TABLE 6-31 Dietary Exposures Estimated from Selected FDA Surveillance Data, 1984-1988
Estimated Aggregate Exposure (mg/kg/day)
Chemical
U.S. Finfish
U.S. Shellfish
All Imported
Total
EPA Cancer Potency (mg/kg/day)-1 a
Indicated Upper-Confidence-Limit Cancer Risk
Organics
Benzene hexachloride
2.9 × 10-8
1.2 × 10-8
1.0 × 10-8
5.1 × 10-8
6.3
3.2 × 10-7
Chlordane
2.3 × 10-7
5.1 × 10-8
2.8 × 10-7
1.3
3.6 × 10-7
Dacthal (DCPA)
4.0 × 10-8
4.0 × 10-8
tDDT
8.8 × 10-6
2.1 × 10-8
2.5 × 10-7
9.0 × 10-6
0.34
3.1 × 10-6
Dieldrin
4.9 × 10-7
2.5 × 10-8
5.1 × 10-7
16
8.2 × 10-6
Endrin
1.7 × 10-8
1.7 × 10-8
Heptachlor
4.3 × 10-8
3.1 × 10-8
7.4 × 10-8
4.5
3.3 × 10-7
Lindane
1.5 × 10-9
1.5 × 10-9
1.3
2.0 × 10-9
Mirex
8.7 × 10-8
8.7 × 10-8
Nonachlor
2.4 × 10-7
1.5 × 10-8
2.6 × 10-7
Octachlor
1.0 × 10-7
1.0 × 10-7
Omethoate
1.2 × 10-8
1.2 × 10-8
Pentachlorophenol
1.5 × 10-9
1.5 × 10-9
Pentachloroaniline
2.0 × 10-9
2.0 × 10-9
PCBs
6.9 × 10-6
6.3 × 10-7
3.7 × 10-7
7.9 × 10-6
7.7
6.0 × 10-5
2,3,7,8-TCDD
1.5 × 10-11
1.5 × 10-11
1.6 × 105
2.3 × 10-6
Tecnazene
1.5 × 10-9
1.5 × 10-9
Total
7.5 × 10-5 b
Metals
Total in µg/day
Aluminum
5.3 × 10-4
5.3 × 10-4
37
Arsenic
5.3 × 10-7
1.1 × 10-5
1.1 × 10-7
5.4 × 10-4
38
Beryllium
1.1 × 10-7
1.1 × 10-7
0.0
Cadmium
9.6 × 10-7
1.4 × 10-5
9.5 × 10-6
2.4 × 10-5
1.7
Chromium
8.2 × 10-6
9.0 × 10-6
0.6
Lead
2.6 × 10-6
2.8 × 10-6
5.9 × 10-6
1.1 × 10-5
0.8
Mercury
1.1 × 10-5
1.2 × 10-5
1.2 × 10-5
3.5 × 10-5
2.5
Selenium
1.5 × 10-6
1.5 × 10-6
0.1
a This level is an upper estimate or the actual risk may be as low as zero.
b Because these are 95% upper-confidence-limit estimates it is not strictly correct to add them. However, the statistical error in this case is not large compared to the other uncertainties of the analysis.
