105 CMR, § 120.195
Element (Atomic Number) | Isotope | Column I Gas Concentration µCi/ml 1/ | Column II Liquid and solid concentration µCi/ml 2/ |
Antimony (51) | Sb-122 Sb-124 Sb-125 | 3X10-4 2X10-4 1X10-3 | |
Argon (18) | Ar-37 Ar-41 | 1X10-3 4X10-7 | |
Arsenic (33) | As-73 As-74 As-76 As-77 | 5X10-3 5X10-4 2X10-4 8X10-4 | |
Barium (56) | Ba-131 Ba-140 | 2X10-3 3X10-4 | |
Beryllium (4) | Be-7 | 2X10-2 | |
Bismuth (83) | Bi-206 | 4X10-4 | |
Bromine (35) | Br-82 | 4X10-7 | 3X10-3 |
Cadmium (48) | Cd-109 Cd-115m Cd-115 | 2X10-3 3X10-4 3X10-4 | |
Calcium (20) | Ca-45 Ca-47 | 9X10-5 5X10-4 | |
Carbon (6) | C-14 | 1X10-6 | 8X10-3 |
Cerium (58) | Ce-141 Ce-143 Ce-144 | 9X10-4 4X10-4 1X10-4 | |
Cesium (55) | Cs-131 Cs-134m Cs-134 | 2X10-2 6X10-2 9X10-5 | |
Chlorine (17) | Cl-38 | 9X10-7 | 4X10-3 |
Chromium (24) | Cr-51 | 2X10-2 | |
Cobalt (27) | Co-57 Co-58 Co-60 | 5X10-3 1X10-3 5X10-4 | |
Copper (29) | Cu-64 | 3X10-3 | |
Dysprosium (66) | Dy-165 Dy-166 | 4X10-3 4X10-4 | |
Erbium (68) | Er-169 Er-171 | 9X10-4 1X10-3 | |
Europium (63) | Eu-152/ (9.2h) Eu-155 | 6X10-4 2X10-3 | |
Fluorine (9) | F-18 | 2X10-6 | 8X10-3 |
Gadolinium (64) | Gd-153 Gd-159 | 2X10-3 8X10-4 | |
Gallium (31) | Ga-72 | 4X10-4 | |
Germanium (32) | Ge-71 | 2X10-2 | |
Gold (79) | Au-196 Au-198 Au-199 | 2X10-3 5X10-4 2X10-3 | |
Hafnium (72) | Hf-181 | 7X10-4 | |
Hydrogen (1) | H-3 | 5X10-6 | 3X10-2 |
Indium (49) | In-113m In-114m | 1X10-2 2X10-4 | |
Iodine (53) | I-126 I-131 I-132 I-133 I-134 | 3X10-9 3X10-9 8X10-8 1X10-8 2X10-7 | 2X10-5 2X10-5 6X10-4 7X10-5 1X10-3 |
Iridium (77) | Ir-190 Ir-192 Ir-194 | 2X10-3 4X10-4 3X10-4 | |
Iron (26) | Fe-55 Fe-59 | 8X10-3 6X10-4 | |
Krypton (36) | Kr-85m Kr-85 | 1X10-6 3X10-6 | |
Lanthanum (57) | La-140 | 2X10-4 | |
Lead (82) | Pb-203 | 4X10-3 | |
Lutetium (71) | Lu-177 | 1X10-3 | |
Manganese (25) | Mn-52 Mn-54 Mn-56 | 3X10-4 1X10-3 1X10-3 | |
Mercury (80) | Hg-197m Hg-197 Hg-203 | 2X10-3 3X10-3 2X10-4 | |
Molybdenum (42) | Mo-99 | 2X10-3 | |
Neodymium (60) | Nd-147 Nd-149 | 6X10-4 3X10-3 | |
Nickel (28) | Ni-65 | 1X10-3 | |
Niobium (Columbium) (41) | Nb-95 Nb-97 | 1X10-3 9X10-3 | |
Osmium (76) | Os-185 Os-191m Os-191 Os-193 | 7X10-4 3X10-2 2X10-3 6X10-4 | |
Palladium (46) | Pd-103 Pd-109 | 3X10-3 9X10-4 | |
Phosphorus (15) | P-32 P-33 | 2X10-4 1X10-3 | |
Platinum (78) | Pt-191 Pt-193m Pt-197m Pt-197 | 1X10-3 1X10-2 1X10-2 1X10-3 | |
Potassium (19) | K-42 | 3X10-3 | |
Praseodymium (59) | Pr-142 Pr-143 | 3X10-4 5X10-4 | |
Promethium (61) | Pm-147 Pm-149 | 2X10-3 4X10-4 | |
Rhenium (75) | Re-183 Re-186 Re-188 | 6X10-3 9X10-4 6X10-4 | |
Rhodium (45) | Rh-103m Rh-105 | 1X10-1 1X10-3 | |
Rubidium (37) | Rb-86 | 7X10-4 | |
Ruthenium (44) | Ru-97 Ru-103 Ru-105 Ru-106 | 4X10-3 8X10-4 1X10-3 1X10-4 | |
Samarium (62) | Sm-153 | 8X10-4 | |
Scandium (21) | Sc-46 Sc-47 Sc-48 | 4X10-4 9X10-4 3X10-4 | |
Selenium (34) | Se-75 | 3X10-3 | |
Silicon (14) | Si-31 | 9X10-3 | |
Silver (47) | Ag-105 Ag-110m Ag-111 | 1X10-3 3X10-4 4X10-4 | |
Sodium (11) | Na-24 | 2X10-3 | |
Strontium (38) | Sr-85 Sr-89 Sr-91 Sr-92 | 1X10-3 1X10-4 7X10-4 7X10-4 | |
Sulfur (16) | S-35 | 9X10-8 | 6X10-4 |
Tantalum (73) | Ta-182 | 4X10-4 | |
Technetium (43) | Tc-96m Tc-96 | 1X10-1 1X10-3 | |
Tellurium (52) | Te-125m Te-127m Te-127 Te-129m Te-131m Te-132 | 2X10-3 6X10-4 3X10-3 3X10-4 6X10-4 3X10-4 | |
Terbium (65) | Tb-160 | 4X10-4 | |
Thallium (81) | Tl-200 Tl-201 Tl-202 Tl-204 | 4X10-3 3X10-3 1X10-3 1X10-3 | |
Thulium (69) | Tm-170 Tm-171 | 5X10-4 5X10-3 | |
Tin (50) | Sn-113 Sn-125 | 9X10-4 2X10-4 | |
Tungsten (Wolfram) (74) | W-181 W-187 | 4X10-3 7X10-4 | |
Vanadium (23) | V-48 | 3X10-4 | |
Xenon (54) | Xe-131m Xe-133 Xe-135 | 4X10-6 3X10-6 1X10-6 | |
Ytterbium (70) | Yb-175 | 1X10-3 | |
Yttrium (39) | Y-90 Y-91m Y-91 Y-92 Y-93 | 2X10-4 3X10-2 3X10-4 6X10-4 3X10-4 | |
Zinc (30) | Zn-65 Zn-69m Zn-69 | 1X10-3 7X10-4 2X10-2 | |
Zirconium (40) | Zr-95 Zr-97 | 6X10-4 2X10-4 | |
Beta and/or gamma emitting radioactive material not listed above with half-life of less than three years. | 1X10-10 | 1X10-6 |
Note 1: Many radioisotopes transform into isotopes which are also radioactive. In expressing the concentrations in 105 CMR 120.195: Appendix A, the activity stated is that of the parent isotope and takes into account the daughters.
Note 2: For purposes of 105 CMR 120.104(A) where there is involved a combination of isotopes, the limit for the combination should be derived as follows: Determine for each isotope in the product the ratio between the radioactivity concentration present in the product and the exempt radioactivity concentration established in 120.195: Appendix A for the specific isotope when not in combination. The sum of such ratios may not exceed "1".
Example:
Note 3: To convert µCi/ml to SI units of mega becquerels per liter multiply the above values by 37.
Example: Zirconium (40) Zr-97 (2x10-4 µCi/ml multiplied by 37 is equivalent to 74 x 10-4 MBq/l)
105 CMR, § 120.195