
Table 7.3. Maximum concentration factorsa reported for selected elements in marine
organisms at various trophic levels (from Bowen et al., 1971).
Element Algae Grazers Predators
Silver (Ag) 1,000 20,000 3,000
Cadmium (Cd) 6,000 2,000,000 10.000
Cerium (Ce) 4,500 300 12
Cobalt (Co) 1,000 10,000 50,000
Chromium (Cr) 600 300,000 3.900
Cesium (Cs) 50 15 10
Iron (Fe) 70,000 300,000 30,000
Iodine (I) 7,000 70 10
Molybdenum (Mo) 200 175 200
Manganese (Mn) 20,000 60,000 100,000
Nickel (Ni) 1,000 10,000 80
Lead (Pb) 3,000,000 2,000,000 200,000
Ruthenium (Ru) 1,000 16 10
Strontium (Sr) 90 85 5
Titanium (Ti) 0,000 20.000 3,000
Zinc ...