Table 1

Radionuclide sorption on different rock (compiled from [4])
Element
 Sample type
 Number of Samples
 Distribution Coefficients (mL/g)






Minimum
 Maximum
 Mean
 Standard Deviation
Strontium
 Alluvium
 73
 1
 781
 470
 197

Carbonate rock
5
 16


Devitrified tuff
 154
 9
 1,200
 101
 141

Vitric tuff
 30
 23
 220
 148
 62

Zeolitic tuff
 83
 1,200
 246,085
 39,277
 54,882
Technetium
 Alluvium
 17
 0
 12
 2.16
 3.48

All tuffs
0
 0

Iodine
 Alluvium
 14
 0
 24.5
 5.74
 4.03

All tuffs
0
 0

Cesium
 Alluvium
 56
 1,720
 33,200
 5,884
 5,153

Carbonate rock
4
 101


Devitrified tuff
 159
 10
 3,800
 645
 656

Vitric tuff
 30
 109
 1,061
 646
 317

Zeolitic tuff
 86
 2,700
 72,000
 16,747
 13,710
Uranium
 Alluvium
 48
 0.9
 60
 6.36
 5.04

Carbonate rock
0
 132


Devitrified tuff
 75
 0
 15
 2.51
 2.29

Vitric tuff
 59
 0
 12
 1.89
 1.7

Zeolitic tuff
 176
 0
 9,423
 45
 423
Neptunium
 Alluvium
 30
 1.83
 22
 8.57
 5.08

Carbonate rock
< 100
 5,000


Devitrified tuff
 421
 0
 2,353
 19
 166

Vitric tuff
 400
 0
 526
 3.17
 29

Zeolitic tuff
 430
 0
 22
 3
 2
Plutonium
 Alluvium
 24
 230
 21,000
 4,091
 4,448

Carbonate rock
100
 10,000


Devitrified tuff
 118
 6
 1,900
 125
 168

Vitric tuff
 71
 23
 1,810
 516
 472

Zeolitic tuff
 110
 19
 2,000
 260
 242
Americium
 Alluvium
 24
 3,200
 1,400,000
 174,469
 214,582

Carbonate rock
150
 300,000


Devitrified tuff
 35
 79
 12,000
 1,845
 1,834

Vitric tuff
 8
 860
 2,050
 1,354
 398

Zeolitic tuff
 25
 470
 33,000
 5,204
 7,757

Hu et al. Geochemical Transactions 2008 9:12   doi:10.1186/1467-4866-9-12
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