R 325.5268 Appendix A8. Concentrations in air and water above natural background. Elements T.

Rule 268. (See notes in Rule 270.) TABLE I TABLE II Element (atomic number) Radionuclide* Column 1 Air (µCi/ml) Column 2 Water (µCi/ml) Column 1 Air (µCi/ml) Column 2 Water (µCi/ml) Tantalum (73) Ta-182 S 4 x 10-8 1 x 10-3 1 x 10-9 4 x 10-5 I 2 x 10-8 1 x 10-3 7 x 10-10 4 x 10-5 Technetium (43) Tc-96m S 8 x 10-5 4 x 10-1 3 x 10-6 1 x 10-2 I 3 x 10-5 3 x 10-1 1 x 10-6 1 x 10-2 Tc-96 S 6 x 10-7 3 x 10-3 2 x 10-8 1 x 10-4 I 2 x 10-7 1 x 10-3 8 x 10-9 5 x 10-5 Tc-97m S 2 x 10-6 1 x 10-2 8 x 10-8 4 x 10-4 I 2 x 10-7 5 x 10-3 5 x 10-9 2 x 10-4 Tc-97 S 1 x 10-5 5 x 10-2 4 x 10-7 2 x 10-3 I 3 x 10-7 2 x 10-2 1 x 10-8 8 x 10-4 Tc-99m S 4 x 10-5 2 x 10-1 1 x 10-6 6 x 10-3 I 1 x 10-5 8 x 10-2 5 x 10-7 3 x 10-3 Tc-99 S 2 x 10-6 1 x 10-2 7 x 10-8 3 x 10-4 I 6 x 10-8 5 x 10-3 2 x 10-9 2 x 10-4 Tellurium (52) Te-125m S 4 x 10-7 5 x 10-3 1 x 10-8 2 x 10-4 I 1 x 10-7 3 x 10-3 4 x 10-9 1 x 10-4 Te-127m S 1 x 10-7 2 x 10-3 5 x 10-9 6 x 10-5 I 4 x 10-8 2 x 10-3 1 x 10-9 5 x 10-5 Te-127 S 2 x 10-6 8 x 10-3 6 x 10-8 3 x 10-4 I 9 x 10-7 5 x 10-3 3 x 10-8 2 x 10-4 Te-129m S 8 x 10-8 1 x 10-3 3 x 10-9 3 x 10-5 I 3 x 10-8 6 x 10-4 1 x 10-9 2 x 10-5 Te-129 S 5 x 10-6 2 x 10-2 2 x 10-7 8 x 10-4 I 4 x 10-6 2 x 10-2 1 x 10-7 8 x 10-4 Te-131m S 4 x 10-7 2 x 10-3 1 x 10-8 6 x 10-5 I 2 x 10-7 1 x 10-3 6 x 10-9 4 x 10-5 Te-132 S 2 x 10-7 9 x 10-4 7 x 10-9 3 x 10-5 I 1 x 10-7 6 x 10-4 4 x 10-9 2 x 10-5 Terbium (65) Tb-160 S 1 x 10-7 1 x 10-3 3 x 10-9 4 x 10-5 I 3 x 10-8 1 x 10-3 1 x 10-9 4 x 10-5 Thallium (81) Tl-200 S 3 x 10-6 1 x 10-2 9 x 10-8 4 x 10-4 I 1 x 10-6 7 x 10-3 4 x 10-8 2 x 10-4 Tl-201 S 2 x 10-6 9 x 10-3 7 x 10-8 3 x 10-4 I 9 x 10-7 5 x 10-3 3 x 10-8 2 x 10-4 Tl-202 S 8 x 10-7 4 x 10-3 3 x 10-8 1 x 10-4 I 2 x 10-7 2 x 10-3 8 x 10-9 7 x 10-5 Tl-204 S 6 x 10-7 3 x 10-3 2 x 10-8 1 x 10-4 I 3 x 10-8 2 x 10-3 9 x 10-10 6 x 10-5 Thorium (90) Th-227 S 3 x 10-10 5 x 10-4 1 x 10-11 2 x 10-5 I 2 x 10-10 5 x 10-4 6 x 10-12 2 x 10-5 Th-228 S 9 x 10-12 2 x 10-4 3 x 10-13 7 x 10-6 I 6 x 10-12 4 x 10-4 2 x 10-13 1 x 10-5 Th-230 S 2 x 10-12 5 x 10-5 8 x 10-14 2 x 10-6 I 1 x 10-11 9 x 10-4 3 x 10-13 3 x 10-5 Th-231 S 1 x 10-6 7 x 10-3 5 x 10-8 2 x 10-4 I 1 x 10-6 7 x 10-3 4 x 10-8 2 x 10-4 Th-232 S 3 x 10-11 5 x 10-5 1 x 10-12 2 x 10-6 I 3 x 10-11 1 x 10-3 1 x 10-12 4 x 10-5 Th-natural S 6 x 10-11 6 x 10-5 2 x 10-12 2 x 10-6 I 6 x 10-11 6 x 10-4 2 x 10-12 2 x 10-5 Th-234 S 6 x 10-8 5 x 10-4 2 x 10-9 2 x 10-5 I 3 x 10-8 5 x 10-4 1 x 10-9 2 x 10-5 Thulium (69) Tm-170 S 4 x 10-8 1 x 10-3 1 x 10-9 5 x 10-5 I 3 x 10-8 1 x 10-3 1 x 10-9 5 x 10-5 Tm-171 S 1 x 10-7 1 x 10-2 4 x 10-9 5 x 10-4 I 2 x 10-7 1 x 10-2 8 x 10-9 5 x 10-4 Tin (50) Sn-113 S 4 x 10-7 2 x 10-3 1 x 10-8 9 x 10-5 I 5 x 10-8 2 x 10-3 2 x 10-9 8 x 10-5 Sn-125 S 1 x 10-7 5 x 10-4 4 x 10-9 2 x 10-5 I 8 x 10-8 5 x 10-4 3 x 10-9 2 x 10-5 Tungsten (74) W-181 S 2 x 10-6 1 x 10-2 8 x 10-8 4 x 10-4 I 1 x 10-7 1 x 10-2 4 x 10-9 3 x 10-4 W-185 S 8 x 10-7 4 x 10-3 3 x 10-8 1 x 10-4 I 1 x 10-7 3 x 10-3 4 x 10-9 1 x 10-4 W-187 S 4 x 10-7 2 x 10-3 2 x 10-8 7 x 10-5 I 3 x 10-7 2 x 10-3 1 x 10-8 6 x 10-5