TABLE 3.
Concentrations of anthropogenic radionuclides in the muscle and
mantle of clams collected from the Northern Marshall Islands during 1978.
Radionuclide concentration (pCi/kg wet wt)?
Atoll and
island
Species
Tissue
Oo,
1370,
23854
23942405,
2a
<0.03
<0.06
606,
Likiep (L~50)
Hippopus hippopus Muscle <1.4
<0.9
<0.03
Likiep (L-31)
Tridacna squamosa
<0.7
<0.15
0.33 (37)
<0.05
<5
(50) <3
<0.04
0.18 (45)
<0.04
23 (14)
<1
<0.09
<0.2
<4
Mantle
Muscle
<1.4
Mantle
1.1
Taka (H-1)
Hippopus hippopus
Taka (H-4)
Hippopus hippopus Muscle
Muscle
Taka (H-4)
Tridacna gigas
Mantle
Hippopus hippopus
Ailinginae (C-24)
Tridacna squamosa
Ailinginae (C-24)
Hippopus hippopus
Wotho (M-17)
Bikar (D-1)
Hippopus hippopus
Hippopus hippopus
Hippopus hippopus
Bikar (D-1)
Tridacna crocea
Ailuk (lagoon)
Tridacna squamosa
Ailuk (A-11)
Tridacna crocea
Rongerik (G~1)
Tridacna gigas
2.2 (40) <0.3
<3
<2
<0.07
0.2 (50)
Mantle
<2
<2
<0.05
<2
<2
<0.09
Mantle
0.9 (50) <0.9
<5
--
Muscle
<1
<0.8
Mantle
<2
<1
Muscle
Mantle
Wotho (M~1)
<5
<0.03
Muscle
Mantle
Ailinginae (C-15)
0.9 (24) <2
1 (50)
<0.8
<0.3
<0.3
0.17 (40)
<0.09
<1.3
<0.03
<1.3
0.09 (80)
<0.07
<2
0.4 (34)
<0.3
<7
0.37 (27)
<0.09
<0.05
0.13 (37)
<0.4
4.5 (18)
<0.03
0.27
(35) 14 (21)
<0.09
<0.05
1.2 (29)
<5
<2
<«l
0.33 (34)
lost
<1
0.09 (50)
2 (10)
0.5 (25)
«1
0.19 (75)
0.39 (50)
<0.05
1.1 (11)
<0.2
<1
0.42 (37) 17 (25)
Muscle
<5
--
<0.01
0.09 (39)
0.1 (50)
Mantle
<0.7
<0.1
<0.12
0.24 .(75)
0.21 (50) <3
Muscle
<1.8
<0.5
<0.4
Mantle
<0.6
0.5 (60)
0.22 (70)
0.13 (60)
0.7 (70)
<3
0.28 (20)
0.1 (45)
<3
<2
<4
<0.4
Muscle
<1.2
<1
<0.02
0.1 (50)
Mantle
<1.3
<1.2
<0.02
0.19 (30)
Muscle
<2
9.1 (13) <0.09
Mantle
<0.7
0.5 (58) <0.02
All?
4 (40)
<0.7
& (60)_—<1.7
19
0.17 (16) 1.77 (16)
<0.07
<3
0.2 (80)
Muscle
0.05 (60)
<0.03
0.12 (30)
Mantle
ail?
2.6 (38) <0.07
<0.1
<3
0.5 (36)
0.34 (43)
<0.02
<3
0.38 (45) <3
<0.03
0.2 (30)
<0.2
0.4 (40)
<0.06
<3
<4
«3
<3
<3