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Radioactive Substances Act 1993
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- UK Public General Acts
- 1993 c. 12
- SCHEDULE 1A
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Version Superseded: 25/11/2021
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- 01/10/2011- Amendment
- 01/06/2018- Amendment
- 01/09/2018- Amendment
- 01/09/2018
Point in time - 25/11/2021- Amendment
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Radioactive Substances Act 1993, SCHEDULE 1A is up to date with all changes known to be in force on or before 24 February 2025. There are changes that may be brought into force at a future date. Changes that have been made appear in the content and are referenced with annotations.
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Section 1A-D
F1[F2SCHEDULE 1AS+N.I.Tables of NORM industrial activities, radionuclides and summation rules
Textual Amendments
F1Sch. 1A repealed (S.) (1.9.2018) by The Environmental Authorisations (Scotland) Regulations 2018 (S.S.I. 2018/219), reg. 1, sch. 7 para. 1 (with reg. 78, sch. 5 paras. 3, 4, 6 and with transitional provisions and savings (25.11.2021) by The Environmental Authorisations (Scotland) Regulations 2018 (Transitional and Savings Provisions) Order 2021 (S.I. 2021/1309), arts. 1(1), 3-5)
F2Sch. 1A substituted for Sch. 1 (S.) (1.10.2011) by The Radioactive Substances Act 1993 Amendment (Scotland) Regulations 2011 (S.S.I. 2011/207), regs. 1(1), 7, sch.; and (N.I.) (1.10.2011) by The Radioactive Substances Act 1993 (Amendment) Regulations (Northern Ireland) 2011 (S.R. 2011/290), reg. 1, Sch.
Table 1
NORM Industrial Activities
Part 1
| Production and use of thorium, or thorium compounds, and the production of products where thorium is deliberately added |
| Production and use of uranium or uranium compounds, and the production of products where uranium is deliberately added |
Part 2
| Extraction, production and use of rare earth elements and rare earth element alloys |
| Mining and processing of ores other than uranium ore |
| Production of oil and gas |
| Removal and management of radioactive scales and precipitates from equipment associated with industrial activities |
| Any industrial activity utilising phosphate ore |
| Manufacture of titanium dioxide pigments |
| The extraction and refining of zircon and manufacture of zirconium compounds |
| Production of tin, copper, aluminium, zinc, lead and iron and steel |
| Activities related to coal mine de-watering plants |
| Water treatment associated with provision of drinking water and the remediation of contamination from other NORM industrial activities |
| China clay extraction |
| [F3Geothermal energy production] |
Textual Amendments
F3Words in Sch. 1A inserted (N.I.) (1.6.2018) by The Radioactive Substances (Modification of Enactments) Regulations (Northern Ireland) 2018 (S.R. 2018/116), regs. 1(1), 2(8)(a)
[F4Table 2
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 | 0.1 | 0.001 |
| U-238+ | 5 | 10 | 0.01 |
| U-234 | 5 | 10 | 0.01 |
| Th-230 | 10 | 10 | 0.001 |
| Ra-226+ | 1 | 1 | 0.1 |
| Pb-210+ | 5 | 0.1 | 0.1 |
| Po-210 | 5 | 0.1 | 0.1 |
| 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 |
| Ra228+ | 1 | 0.1 | 0.01 |
| Th-228+ | 1 | 1 | 0.001] |
Textual Amendments
F4Sch. 1A Table 2 substituted (N.I.) (1.6.2018) by The Radioactive Substances (Modification of Enactments) Regulations (Northern Ireland) 2018 (S.R. 2018/116), regs. 1(1), 2(8)(b)
[F5Table 3
Concentration of radionuclides
| 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 |
| CI-36 | 1 |
| CI-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 | 10 |
| 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 | 10 |
| Cd-109+ | 1 |
| Cd-115+ | 102 |
| 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+ | 10 |
| Te-133m+ | 10 |
| Te-134 | 10 |
| I-123 | 102 |
| I-125 | 102 |
| I-126 | 10 |
| I-129 | 0.01 |
| I-130 | 10 |
| I-131+ | 10 |
| 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 | 100 |
| 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 | 10 |
| Eu-152 | 0.1 |
| Eu-152m | 10 |
| 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 | 103 |
| 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 | 103 |
| 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 |
| TI-200 | 10 |
| TI-201 | 102 |
| TI-202 | 10 |
| TI-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+ | 103 |
| 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 | 10 |
| 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 | 103 |
| 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+ | 102 |
| Cf-254 | 1 |
| Es-253 | 102 |
| Es-254+ | 0.1 |
| Es-254m+ | 10 |
| Fm-254 | 104 |
| Fm-255 | 102 |
| Any other solid or non-aqueous liquid radionuclide that is not of natural terrestrial or cosmic origin | 0.01, unless the concentration which gives rise to the same 10 µSv/year dose criteria as used in column 2 of this table can be calculated by reference to the IAEA publication “Application of the Concepts of Exclusion, Exemption and Clearance” IAEA Safety Standards Series NO. RS-G-1.7.] |
Textual Amendments
F5Sch. 1A Table 3 substituted (N.I.) (1.6.2018) by The Radioactive Substances (Modification of Enactments) Regulations (Northern Ireland) 2018 (S.R. 2018/116), regs. 1(1), 2(8)(c)
Table 4
Radionuclides in Secular Equilibrium
| Parent radionuclide | Daughter radionuclides |
|---|---|
| Ac-227+ | Th-227, Fr-223, Ra-223, Rn-219, Po-215, Pb-211, Bi-211, Tl-207, Po-211 |
| Ag-108m+ | Ag-108 |
| Ag-110m+ | Ag-110 |
| Am-242m+ | Np-238 |
| Am-243+ | Np-239 |
| Bi-212+ | Tl-208 |
| Cd-109+ | Ag-109m |
| Cd-115+ | In-115m |
| Cd-115m+ | In-115m |
| Ce-144+ | Pr-144, Pr-144m |
| Cf-253+ | Cm-249 |
| Cm-247+ | Pu-243 |
| Cs-137+ | Ba-137m |
| Es-254+ | Bk-250 |
| Es-254m+ | Fm-254 |
| Fe-52+ | Mn-52m |
| I-131+ | Xe-131m |
| In-114m+ | In-114 |
| Mo-99+ | Tc-99m |
| Mo-101+ | Tc-101 |
| Nb-97+ | Nb-97m |
| Np-237+ | Pa-233 |
| Pb-210+ | Bi-210, Po-210 |
| Pb-212+ | Bi-212, Tl-208 |
| Pd-103+ | Rh-103m |
| Pd-109+ | Ag-109m |
| Pu-244+ | U-240, Np-240m, Np-240 |
| 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 |
| Ru-103+ | Rh-103m |
| Ru-105+ | Rh-105m |
| Ru-106+ | Rh-106 |
| Sb-125+ | Te-125m |
| Sn-113+ | In-113m |
| Sr-90+ | Y-90 |
| Sr-91+ | Y-91m |
| 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 |
| 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 |
| Zn-69m+ | Zn-69 |
| Zr-95+ | Nb-95m |
| Zr-97+ | Nb-97m, Nb-97] |
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