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The Environmental Permitting (England and Wales) Regulations 2016
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PART 3Tables of radionuclides and summation rules
Table 1
1.—(1) The Table 1 referred to in paragraph 4 of Part 2 (NORM industrial activities) is—
Table 1
Concentration of radionuclides: NORM industrial activities
| Radionuclide | Solid or relevant liquid concentration in becquerels per gram (Bq/g) | Any other liquid concentration in becquerels per litre (Bq/l) | Gaseous concentration in becquerels per cubic metre (Bq/m3) |
|---|---|---|---|
| U-238sec(1) | 0.5 | 0.1 | 0.001 |
| U-238+ | 5 | 10 | 0.01 |
| U-234 | 5 | 10 | 0.01 |
| Th-230 | 10 | 10 | 0.001 |
| Ra-226+ | 0.5 | 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 | 0.5 | 0.1 | 0.001 |
| Th-232 | 5 | 10 | 0.001 |
| Ra-228+ | 1 | 0.1 | 0.01 |
| Th-228+ | 0.5 | 1 | 0.001 |
(2) The Table 1 summation rule in respect of column 2, 3 or 4 means the sum of the quotients A/B where—
(a)“A” means the concentration of each radionuclide listed in column 1 of Table 1 that is present in the substance or article, and
(b)“B” means the concentration of that radionuclide specified in column 2, 3 or 4 (as appropriate) of Table 1.
Table 2
2.—(1) The Table 2 referred to in paragraph 5 of Part 2 (processed radionuclides of natural terrestrial or cosmic origin) and paragraph 6 of that Part (radionuclides not of natural terrestrial or cosmic origin) is—
Table 2
Concentration of radionuclides
| Radionuclide | Concentration in becquerels per gram (Bq/g) |
|---|---|
| H-3 | 102 |
| Be-7 | 10 |
| C-14 | 10 |
| F-18 | 1 |
| Na-22 | 0.1 |
| Na-24 | 0.1 |
| Si-31 | 102 |
| P-32 | 102 |
| P-33 | 102 |
| S-35 | 102 |
| Cl-36 | 1 |
| Cl-38 | 1 |
| K-42 | 10 |
| K-43 | 1 |
| Ca-45 | 102 |
| Ca-47 | 1 |
| Sc-46 | 0.1 |
| Sc-47 | 10 |
| Sc-48 | 0.1 |
| V-48 | 0.1 |
| Cr-51 | 10 |
| Mn-51 | 1 |
| Mn-52 | 0.1 |
| Mn-52m | 1 |
| Mn-53 | 103 |
| Mn-54 | 0.1 |
| Mn-56 | 1 |
| Fe-52+ | 1 |
| Fe-55 | 102 |
| Fe-59 | 0.1 |
| Co-55 | 1 |
| Co-56 | 0.1 |
| Co-57 | 1 |
| Co-58 | 0.1 |
| Co-58m | 102 |
| Co-60 | 0.1 |
| Co-60m | 103 |
| Co-61 | 102 |
| Co-62m | 1 |
| Ni-59 | 102 |
| Ni-63 | 102 |
| Ni-65 | 1 |
| Cu-64 | 10 |
| Zn-65 | 1 |
| Zn-69 | 102 |
| Zn-69m+ | 1 |
| Ga-72 | 1 |
| Ge-71 | 104 |
| As-73 | 102 |
| As-74 | 1 |
| As-76 | 1 |
| As-77 | 102 |
| Se-75 | 1 |
| Br-82 | 0.1 |
| Rb-86 | 10 |
| Sr-85 | 1 |
| Sr-85m | 10 |
| Sr-87m | 10 |
| Sr-89 | 10 |
| Sr-90+ | 1 |
| Sr-91+ | 1 |
| Sr-92 | 1 |
| Y-90 | 102 |
| Y-91 | 10 |
| Y-91m | 1 |
| Y-92 | 10 |
| Y-93 | 10 |
| Zr-93 | 10 |
| Zr-95+ | 0.1 |
| Zr-97+ | 1 |
| Nb-93m | 102 |
| Nb-94 | 0.1 |
| Nb-95 | 1 |
| Nb-97+ | 1 |
| Nb-98 | 1 |
| Mo-90 | 1 |
| Mo-93 | 10 |
| Mo-99+ | 1 |
| Mo-101+ | 1 |
| Tc-96 | 0.1 |
| Tc-96m | 10 |
| Tc-97 | 10 |
| Tc-97m | 10 |
| Tc-99 | 1 |
| Tc-99m | 102 |
| Ru-97 | 1 |
| Ru-103+ | 1 |
| Ru-105+ | 1 |
| Ru-106+ | 1 |
| Rh-103m | 104 |
| Rh-105 | 10 |
| Pd-103+ | 103 |
| Pd-109+ | 102 |
| Ag-105 | 1 |
| Ag-108m+ | 0.1 |
| Ag-110m+ | 0.1 |
| Ag-111 | 10 |
| Cd-109+ | 10 |
| Cd-115+ | 1 |
| Cd-115m+ | 10 |
| In-111 | 1 |
| In-113m | 10 |
| In-114m+ | 1 |
| In-115m | 10 |
| Sn-113+ | 1 |
| Sn-125 | 1 |
| Sb-122 | 1 |
| Sb-124 | 0.1 |
| Sb-125+ | 1 |
| Te-123m | 1 |
| Te-125m | 102 |
| Te-127 | 102 |
| Te-127m+ | 10 |
| Te-129 | 10 |
| Te-129m+ | 10 |
| Te-131 | 10 |
| Te-131m+ | 1 |
| Te-132+ | 0.1 |
| Te-133+ | 1 |
| Te-133m+ | 1 |
| Te-134 | 1 |
| I-123 | 10 |
| I-125 | 1 |
| I-126 | 1 |
| I-129 | 0.1 |
| I-130 | 1 |
| I-131+ | 1 |
| I-132 | 1 |
| I-133 | 1 |
| I-134 | 1 |
| I-135 | 1 |
| Cs-129 | 1 |
| Cs-131 | 103 |
| Cs-132 | 1 |
| Cs-134 | 0.1 |
| Cs-134m | 103 |
| Cs-135 | 10 |
| Cs-136 | 0.1 |
| Cs-137+ | 1 |
| Cs-138 | 1 |
| Ba-131 | 1 |
| Ba-140 | 0.1 |
| La-140 | 0.1 |
| Ce-139 | 1 |
| Ce-141 | 10 |
| Ce-143 | 1 |
| Ce-144+ | 10 |
| Pr-142 | 10 |
| Pr-143 | 102 |
| Nd-147 | 10 |
| Nd-149 | 10 |
| Pm-147 | 102 |
| Pm-149 | 102 |
| Sm-151 | 102 |
| Sm-153 | 10 |
| Eu-152 | 0.1 |
| Eu-152m | 10 |
| Eu-154 | 0.1 |
| Eu-155 | 10 |
| Gd-153 | 10 |
| Gd-159 | 10 |
| Tb-160 | 0.1 |
| Dy-165 | 102 |
| Dy-166 | 10 |
| Ho-166 | 10 |
| Er-169 | 102 |
| Er-171 | 10 |
| Tm-170 | 10 |
| Tm-171 | 102 |
| Yb-175 | 10 |
| Lu-177 | 10 |
| Hf-181 | 1 |
| Ta-182 | 0.1 |
| W-181 | 10 |
| W-185 | 102 |
| W-187 | 1 |
| Re-186 | 102 |
| Re-188 | 10 |
| Os-185 | 1 |
| Os-191 | 10 |
| Os-191m | 103 |
| Os-193 | 10 |
| Ir-190 | 0.1 |
| Ir-192 | 0.1 |
| Ir-194 | 10 |
| Pt-191 | 1 |
| Pt-193m | 102 |
| Pt-197 | 102 |
| Pt-197m | 102 |
| Au-198 | 1 |
| Au-199 | 10 |
| Hg-197 | 10 |
| Hg-197m | 10 |
| Hg-203 | 1 |
| Tl-200 | 1 |
| Tl-201 | 10 |
| Tl-202 | 1 |
| Tl-204 | 10 |
| Pb-203 | 1 |
| Pb-210+ | 0.01 |
| Pb-212+ | 1 |
| Bi-206 | 0.1 |
| Bi-207 | 0.1 |
| Bi-210 | 10 |
| Bi-212+ | 1 |
| Po-203 | 1 |
| Po-205 | 1 |
| Po-207 | 1 |
| Po-210 | 0.01 |
| At-211 | 102 |
| Ra-223+ | 1 |
| Ra-224+ | 1 |
| Ra-225 | 1 |
| Ra-226+ | 0.01 |
| Ra-227 | 10 |
| 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 | 1 |
| Pa-231 | 0.01 |
| Pa-233 | 1 |
| U-230+ | 1 |
| U-231 | 10 |
| U-232+ | 0.1 |
| U-233 | 1 |
| U-234 | 1 |
| U-235+ | 1 |
| U-235sec | 0.01 |
| U-236 | 1 |
| U-237 | 10 |
| U-238+ | 1 |
| U-238sec | 0.01 |
| U-239 | 102 |
| U-240+ | 10 |
| Np-237+ | 0.1 |
| Np-239 | 10 |
| Np-240 | 1 |
| Pu-234 | 102 |
| Pu-235 | 102 |
| Pu-236 | 0.1 |
| Pu-237 | 10 |
| Pu-238 | 0.1 |
| Pu-239 | 0.1 |
| Pu-240 | 0.1 |
| Pu-241 | 1 |
| Pu-242 | 0.1 |
| Pu-243 | 102 |
| Pu-244+ | 0.1 |
| Am-241 | 0.1 |
| Am-242 | 102 |
| Am-242m+ | 0.1 |
| Am-243+ | 0.1 |
| Cm-242 | 1 |
| Cm-243 | 0.1 |
| Cm-244 | 0.1 |
| Cm-245 | 0.1 |
| Cm-246 | 0.1 |
| Cm-247+ | 0.1 |
| Cm-248 | 0.1 |
| Bk-249 | 10 |
| Cf-246 | 10 |
| Cf-248 | 1 |
| Cf-249 | 0.1 |
| Cf-250 | 0.1 |
| Cf-251 | 0.1 |
| Cf-252 | 0.1 |
| Cf-253 | 1 |
| Cf-253+ | 1 |
| Cf-254 | 0.1 |
| Es-253 | 1 |
| Es-254+ | 0.1 |
| Es-254m+ | 1 |
| Fm-254 | 102 |
| Fm-255 | 10 |
| 0.01 | |
| Any other solid or relevant liquid radionuclide that is not of natural terrestrial or cosmic origin | 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(2). |
(2) The Table 2 column 2 summation rule means the sum of the quotients A/B where—
(a)“A” means the concentration of each radionuclide listed in column 1 of Table 2 that is present in the substance or article, and
(b)“B” means the concentration of that radionuclide specified in column 2 of Table 2.
References in Table 1 and Table 2 to + and sec
3. Where any radionuclide carries the suffix “+” or “sec” in Table 1 or Table 2—
(a)that radionuclide represents the parent radionuclide in secular equilibrium with the corresponding daughter radionuclides which are identified in column 2 of Table 3 in respect of that parent radionuclide, and
(b)a concentration value given in a table in this Part in respect of such a parent radionuclide is the value for the parent radionuclide alone, but already takes into account the daughter radionuclides present.
Table 3
4. The Table 3 referred to in paragraph 3 is—
Table 3
Radionuclides in secular equilibrium
| 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 |
(1)
For the meaning of ‘sec’ and ‘+’ in this Part, see paragraph 3.
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