xmlns:atom="http://www.w3.org/2005/Atom"
Radionuclide | Solid or relevant liquid concentration in becquerels per gram (Bq/g) | Any other liquid concentration becquerels per litre (Bq/l) | Gaseous concentration in becquerels per cubic metre (Bq/m3) |
---|---|---|---|
U-238sec | 1 | 0.1 | 0.001 |
U-238+ | 5 | 10 | 0.01 |
U-234 | 5 | 10 | 0.01 |
Th-230 | 10 | 10 | 0.001 |
Ra-226+ | 1 | 1 | 0.01 |
Pb-210+ | 5 | 0.1 | 0.01 |
Po-210 | 5 | 0.1 | 0.01 |
U-235sec | 1 | 0.1 | 0.0001 |
U-235+ | 5 | 10 | 0.01 |
Pa-231 | 5 | 1 | 0.001 |
Ac-227+ | 1 | 0.1 | 0.001 |
Th-232sec | 1 | 0.1 | 0.001 |
Th-232 | 5 | 10 | 0.001 |
Ra-228+ | 1 | 0.1 | 0.01 |
Th-228+ | 1 | 1 | 0.001 |
“The table 1 summation rule” means the sum of the quotient A/B where—
“A” means the quantity of each radionuclide listed in column 1 of Table 1 that is present in the substance or article; and
“B” means the quantity of that radionuclide specified in (as appropriate)—
column 2 of Table 1 where the substance or article is a solid or a relevant liquid;
column 3 of Table 1 where the substance or article is any other liquid; or
column 4 of Table 1 where the substance or article is a gas.
Radionuclide | Concentration in becquerels per gram (Bq/g) |
---|---|
H-3 | 102 |
Be-7 | 10 |
C-14 | 10 |
F-18 | 10 |
Na-22 | 0.1 |
Na-24 | 1 |
Si-31 | 103 |
P-32 | 103 |
P-33 | 103 |
S-35 | 102 |
Cl-36 | 1 |
Cl-38 | 10 |
K-42 | 102 |
K-43 | 10 |
Ca-45 | 102 |
Ca-47 | 10 |
Sc-46 | 0.1 |
Sc-47 | 102 |
Sc-48 | 1 |
V-48 | 1 |
Cr-51 | 102 |
Mn-51 | 10 |
Mn-52 | 1 |
Mn-52m | 10 |
Mn-53 | 102 |
Mn-54 | 0.1 |
Mn-56 | 10 |
Fe-52+ | 10 |
Fe-55 | 103 |
Fe-59 | 1 |
Co-55 | 10 |
Co-56 | 0.1 |
Co-57 | 1 |
Co-58 | 1 |
Co-58m | 104 |
Co-60 | 0.1 |
Co-60m | 103 |
Co-61 | 102 |
Co-62m | 10 |
Ni-59 | 102 |
Ni-63 | 102 |
Ni-65 | 10 |
Cu-64 | 102 |
Zn-65 | 0.1 |
Zn-69 | 103 |
Zn-69m+ | 10 |
Ga-72 | 10 |
Ge-71 | 104 |
As-73 | 103 |
As-74 | 10 |
As-76 | 10 |
As-77 | 103 |
Se-75 | 1 |
Br-82 | 1 |
Rb-86 | 102 |
Sr-85 | 1 |
Sr-85m | 102 |
Sr-87m | 102 |
Sr-89 | 103 |
Sr-90+ | 1 |
Sr-91+ | 10 |
Sr-92 | 10 |
Y-90 | 103 |
Y-91 | 102 |
Y-91m | 102 |
Y-92 | 102 |
Y-93 | 102 |
Zr-93 | 10 |
Zr-95+ | 1 |
Zr-97+ | 10 |
Nb-93m | 10 |
Nb-94 | 0.1 |
Nb-95 | 1 |
Nb-97+ | 10 |
Nb-98 | 10 |
Mo-90 | 10 |
Mo-93 | 10 |
Mo-99+ | 10 |
Mo-101+ | 10 |
Tc-96 | 1 |
Tc-96m | 103 |
Tc-97 | 10 |
Tc-97m | 102 |
Tc-99 | 1 |
Tc-99m | 102 |
Ru-97 | 10 |
Ru-103+ | 1 |
Ru-105+ | 10 |
Ru-106+ | 0.1 |
Rh-103m | 104 |
Rh-105 | 102 |
Pd-103+ | 103 |
Pd-109+ | 102 |
Ag-105 | 1 |
Ag-108m+ | 0.1 |
Ag-110m+ | 0.1 |
Ag-111 | 102 |
Cd-109+ | 1 |
Cd-115+ | 10 |
Cd-115m+ | 102 |
In-111 | 10 |
In-113m | 102 |
In-114m+ | 10 |
In-115m | 102 |
Sn-113+ | 1 |
Sn-125 | 10 |
Sb-122 | 10 |
Sb-124 | 1 |
Sb-125+ | 0.1 |
Te-123m | 1 |
Te-125m | 103 |
Te-127 | 103 |
Te-127m+ | 10 |
Te-129 | 102 |
Te-129m+ | 10 |
Te-131 | 102 |
Te-131m+ | 10 |
Te-132+ | 1 |
Te-133+ | 1 |
Te-133m+ | 1 |
Te-134 | 10 |
I-123 | 102 |
I-125 | 102 |
I-126 | 10 |
I-129 | 0.01 |
I-130 | 10 |
I-131+ | 1 |
I-132 | 10 |
I-133 | 10 |
I-134 | 10 |
I-135 | 10 |
Cs-129 | 10 |
Cs-131 | 103 |
Cs-132 | 10 |
Cs-134 | 0.1 |
Cs-134m | 103 |
Cs-135 | 102 |
Cs-136 | 1 |
Cs-137+ | 1 |
Cs-138 | 10 |
Ba-131 | 10 |
Ba-140 | 1 |
La-140 | 1 |
Ce-139 | 1 |
Ce-141 | 102 |
Ce-143 | 10 |
Ce-144+ | 10 |
Pr-142 | 102 |
Pr-143 | 103 |
Nd-147 | 102 |
Nd-149 | 102 |
Pm-147 | 103 |
Pm-149 | 103 |
Sm-151 | 103 |
Sm-153 | 102 |
Eu-152 | 0.1 |
Eu-152m | 102 |
Eu-154 | 0.1 |
Eu-155 | 1 |
Gd-153 | 10 |
Gd-159 | 102 |
Tb-160 | 1 |
Dy-165 | 103 |
Dy-166 | 102 |
Ho-166 | 102 |
Er-169 | 10 3 |
Er-171 | 102 |
Tm-170 | 102 |
Tm-171 | 103 |
Yb-175 | 102 |
Lu-177 | 102 |
Hf-181 | 1 |
Ta-182 | 0.1 |
W-181 | 10 |
W-185 | 103 |
W-187 | 10 |
Re-186 | 103 |
Re-188 | 102 |
Os-185 | 1 |
Os-191 | 102 |
Os-191m | 103 |
Os-193 | 102 |
Ir-190 | 1 |
Ir-192 | 1 |
Ir-194 | 102 |
Pt-191 | 10 |
Pt-193m | 103 |
Pt-197 | 103 |
Pt-197m | 102 |
Au-198 | 10 |
Au-199 | 102 |
Hg-197 | 102 |
Hg-197m | 102 |
Hg-203 | 10 |
Tl-200 | 10 |
Tl-201 | 102 |
Tl-202 | 10 |
Tl-204 | 1 |
Pb-203 | 10 |
Pb-210+ | 0.01 |
Pb-212+ | 1 |
Bi-206 | 1 |
Bi-207 | 0.1 |
Bi-210 | 10 |
Bi-212+ | 1 |
Po-203 | 10 |
Po-205 | 10 |
Po-207 | 10 |
Po-210 | 0.01 |
At-211 | 103 |
Ra-223+ | 1 |
Ra-224+ | 1 |
Ra-225 | 10 |
Ra-226+ | 0.01 |
Ra-227 | 102 |
Ra-228+ | 0.01 |
Ac-227+ | 0.01 |
Ac-228 | 1 |
Th-226+ | 102 |
Th-227 | 1 |
Th-228+ | 0.1 |
Th-229+ | 0.1 |
Th-230 | 0.1 |
Th-231 | 102 |
Th-232 | 0.01 |
Th-232+ | 0.01 |
Th-232sec | 0.01 |
Th-234+ | 10 |
Pa-230 | 10 |
Pa-231 | 0.01 |
Pa-233 | 10 |
U-230+ | 1 |
U-231 | 102 |
U-232+ | 0.1 |
U-233 | 1 |
U-234 | 1 |
U-235+ | 1 |
U-235sec | 0.01 |
U-236 | 10 |
U-237 | 102 |
U-238+ | 1 |
U-238sec | 0.01 |
U-239 | 102 |
U-240+ | 102 |
Np-237+ | 1 |
Np-239 | 102 |
Np-240 | 10 |
Pu-234 | 102 |
Pu-235 | 102 |
Pu-236 | 1 |
Pu-237 | 102 |
Pu-238 | 0.1 |
Pu-239 | 0.1 |
Pu-240 | 0.1 |
Pu-241 | 10 |
Pu-242 | 0.1 |
Pu-243 | 103 |
Pu-244+ | 0.1 |
Am-241 | 0.1 |
Am-242 | 103 |
Am-242m+ | 0.1 |
Am-243+ | 0.1 |
Cm-242 | 10 |
Cm-243 | 1 |
Cm-244 | 1 |
Cm-245 | 0.1 |
Cm-246 | 0.1 |
Cm-247+ | 0.1 |
Cm-248 | 0.1 |
Bk-249 | 102 |
Cf-246 | 103 |
Cf-248 | 1 |
Cf-249 | 0.1 |
Cf-250 | 1 |
Cf-251 | 0.1 |
Cf-252 | 1 |
Cf-253 | 102 |
Cf-253+ | 1 |
Cf-254 | 1 |
Es-253 | 102 |
Es-254+ | 0.1 |
Es-254m+ | 10 |
Fm-254 | 10 4 |
Fm-255 | 102 |
Any other solid or relevant liquid radionuclide that is not of natural terrestrial or cosmic origin | 0.01 or that concentration which gives rise to a dose to a member of the public of 10 microsieverts per year calculated by reference to guidance by Euratom in RP 122 part 1(1). |
“The table 2 summation rule” means the sum of the quotient A/B where—
“A” means the concentration of each radionuclide listed in column 1 of Table 2 that is present in the substance or article; and
“B” means the quantity of that radionuclide specified in column 2 of Table 2.
Parent Radionuclide | Daughter Radionuclides |
---|---|
Fe-52+ | Mn-52m |
Zn-69m+ | Zn-69 |
Sr-90+ | Y-90 |
Sr-91+ | Y-91m |
Zr-95+ | Nb-95m |
Zr-97+ | Nb-97m, Nb-97 |
Nb-97+ | Nb-97m |
Mo-99+ | Tc-99m |
Mo-101+ | Tc-101 |
Ru-103+ | Rh-103m |
Ru-105+ | Rh-105m |
Ru-106+ | Rh-106 |
Pd-103+ | Rh-103m |
Pd-109+ | Ag-109m |
Ag-108m+ | Ag-108 |
Ag-110m+ | Ag-110 |
Cd-109+ | Ag-109m |
Cd-115+ | In-115m |
Cd-115m+ | In-115m |
In-114m+ | In-114 |
Sn-113+ | In-113m |
Sb-125+ | Te-125m |
Te-127m+ | Te-127 |
Te-129m+ | Te-129 |
Te-131m+ | Te-131 |
Te-132+ | I-132 |
Te-133+ | I-133, Xe-133m, Xe-133 |
Te-133m+ | Te-133, I-133, Xe-133m, Xe-133 |
I-131+ | Xe-131m |
Cs-137+ | Ba-137m |
Ce-144+ | Pr-144, Pr-144m |
Pb-210+ | Bi-210, Po-210 |
Pb-212+ | Bi-212, Tl-208 |
Bi-212+ | Tl-208 |
Ra-223+ | Rn-219, Po-215, Pb-211, Bi-211, Tl-207 |
Ra-224+ | Rn-220, Po-216, Pb-212, Bi-212, Tl-208 |
Ra-226+ | Rn-222, Po-218, Pb-214, Bi-214, Po-214 |
Ra-228+ | Ac-228 |
Ac-227+ | Th-227, Fr-223, Ra-223, Rn-219, Po-215, Pb-211, Bi-211, Tl-207, Po-211 |
Th-226+ | Ra-222, Rn-218, Po-214 |
Th-228+ | Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208 |
Th-229+ | Ra-225, Ac-225, Fr-221, At-217, Bi-213, Tl-209, Pb-209 |
Th-232+ | Ra-228, Ac-228, Th-228, Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208 |
Th-232sec | Ra-228, Ac-228, Th-228, Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Po-212, Tl-208 |
Th-234+ | Pa-234m, Pa-234 |
U-230+ | Th-226, Ra-222, Rn-218, Po-214 |
U-232+ | Th-228, Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208 |
U-235+ | Th-231 |
U-235sec | Th-231, Pa-231, Ac-227, Th-227, Fr-223, Ra-223, Rn-219, Po-215, Pb-211, Bi-211, Tl-207, Po-211 |
U-238+ | Th-234, Pa-234m, Pa-234 |
U-238sec | Th-234, Pa-234m, Pa-234, U-234, Th-230, Ra-226, Rn-222, Po-218, Pb-214, Bi-214, Po-214, Pb-210, Bi-210, Po-210 |
U-240+ | Np-240m, Np-240 |
Np-237+ | Pa-233 |
Pu-244+ | U-240, Np-240m, Np-240 |
Am-242m+ | Np-238 |
Am-243+ | Np-239 |
Cm-247+ | Pu-243 |
Cf-253+ | Cm-249 |
Es-254+ | Bk-250 |
Es-254m+ | Fm-254 |
Radionuclide | Activity (TBq) |
---|---|
(1) The activity given is that of the alpha-emitting radionuclide. | |
Am-241 | 6 × 10 –2 |
Am-241/Be-9(1) | 6 × 10 –2 |
Cf-252 | 2 × 10 –2 |
Cm-244 | 5 × 10 –2 |
Co-60 | 3 × 10 –2 |
Cs-137 | 1 × 10 –1 |
Gd-153 | 1 × 10 0 |
Ir-192 | 8 × 10 –2 |
Pm-147 | 4 × 10 1 |
Pu-238 | 6 × 10 –2 |
Pu-239/Be-9(1) | 6 × 10 –2 |
Ra-226 | 4 × 10 –2 |
Se-75 | 2 × 10 –1 |
Sr-90 (Y-90) | 1 × 10 0 |
Tm-170 | 2 × 10 1 |
Yb-169 | 3 × 10 –1 |
Any other radionuclide | The D-value defined for that radionuclide in “Dangerous quantities of radioactive material (D-values)”(2) |
Table 5
Information to be provided in records for high-activity sealed sources
European Commission: Guidance on General Clearance Levels for Practices, Radiation Protection 122, 2000.
Published by the International Atomic Energy Agency in Vienna, Austria (publication date August 2006) (IAEA-EPR-D-Values 2006).