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The Environmental Authorisations (Scotland) Regulations 2018

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  • “The table 1 summation rule” means the sum of the quotient A/B where—

    (a)

    “A” means the quantity of each radionuclide listed in column 1 of Table 1 that is present in the substance or article; and

    (b)

    “B” means the quantity of that radionuclide specified in (as appropriate)—

    (i)

    column 2 of Table 1 where the substance or article is a solid or a relevant liquid;

    (ii)

    column 3 of Table 1 where the substance or article is any other liquid; or

    (iii)

    column 4 of Table 1 where the substance or article is a gas.

    Table 2
    Concentration of radionuclides
    RadionuclideConcentration in becquerels per gram (Bq/g)
    H-3102
    Be-710
    C-1410
    F-1810
    Na-220.1
    Na-241
    Si-31103
    P-32103
    P-33103
    S-35102
    Cl-361
    Cl-3810
    K-42102
    K-4310
    Ca-45102
    Ca-4710
    Sc-460.1
    Sc-47102
    Sc-481
    V-481
    Cr-51102
    Mn-5110
    Mn-521
    Mn-52m10
    Mn-53102
    Mn-540.1
    Mn-5610
    Fe-52+10
    Fe-55103
    Fe-591
    Co-5510
    Co-560.1
    Co-571
    Co-581
    Co-58m104
    Co-600.1
    Co-60m103
    Co-61102
    Co-62m10
    Ni-59102
    Ni-63102
    Ni-6510
    Cu-64102
    Zn-650.1
    Zn-69103
    Zn-69m+10
    Ga-7210
    Ge-71104
    As-73103
    As-7410
    As-7610
    As-77103
    Se-751
    Br-821
    Rb-86102
    Sr-851
    Sr-85m102
    Sr-87m102
    Sr-89103
    Sr-90+1
    Sr-91+10
    Sr-9210
    Y-90103
    Y-91102
    Y-91m102
    Y-92102
    Y-93102
    Zr-9310
    Zr-95+1
    Zr-97+10
    Nb-93m10
    Nb-940.1
    Nb-951
    Nb-97+10
    Nb-9810
    Mo-9010
    Mo-9310
    Mo-99+10
    Mo-101+10
    Tc-961
    Tc-96m103
    Tc-9710
    Tc-97m102
    Tc-991
    Tc-99m102
    Ru-9710
    Ru-103+1
    Ru-105+10
    Ru-106+0.1
    Rh-103m104
    Rh-105102
    Pd-103+103
    Pd-109+102
    Ag-1051
    Ag-108m+0.1
    Ag-110m+0.1
    Ag-111102
    Cd-109+1
    Cd-115+10
    Cd-115m+102
    In-11110
    In-113m102
    In-114m+10
    In-115m102
    Sn-113+1
    Sn-12510
    Sb-12210
    Sb-1241
    Sb-125+0.1
    Te-123m1
    Te-125m103
    Te-127103
    Te-127m+10
    Te-129102
    Te-129m+10
    Te-131102
    Te-131m+10
    Te-132+1
    Te-133+1
    Te-133m+1
    Te-13410
    I-123102
    I-125102
    I-12610
    I-1290.01
    I-13010
    I-131+1
    I-13210
    I-13310
    I-13410
    I-13510
    Cs-12910
    Cs-131103
    Cs-13210
    Cs-1340.1
    Cs-134m103
    Cs-135102
    Cs-1361
    Cs-137+1
    Cs-13810
    Ba-13110
    Ba-1401
    La-1401
    Ce-1391
    Ce-141102
    Ce-14310
    Ce-144+10
    Pr-142102
    Pr-143103
    Nd-147102
    Nd-149102
    Pm-147103
    Pm-149103
    Sm-151103
    Sm-153102
    Eu-1520.1
    Eu-152m102
    Eu-1540.1
    Eu-1551
    Gd-15310
    Gd-159102
    Tb-1601
    Dy-165103
    Dy-166102
    Ho-166102
    Er-16910 3
    Er-171102
    Tm-170102
    Tm-171103
    Yb-175102
    Lu-177102
    Hf-1811
    Ta-1820.1
    W-18110
    W-185103
    W-18710
    Re-186103
    Re-188102
    Os-1851
    Os-191102
    Os-191m103
    Os-193102
    Ir-1901
    Ir-1921
    Ir-194102
    Pt-19110
    Pt-193m103
    Pt-197103
    Pt-197m102
    Au-19810
    Au-199102
    Hg-197102
    Hg-197m102
    Hg-20310
    Tl-20010
    Tl-201102
    Tl-20210
    Tl-2041
    Pb-20310
    Pb-210+0.01
    Pb-212+1
    Bi-2061
    Bi-2070.1
    Bi-21010
    Bi-212+1
    Po-20310
    Po-20510
    Po-20710
    Po-2100.01
    At-211103
    Ra-223+1
    Ra-224+1
    Ra-22510
    Ra-226+0.01
    Ra-227102
    Ra-228+0.01
    Ac-227+0.01
    Ac-2281
    Th-226+102
    Th-2271
    Th-228+0.1
    Th-229+0.1
    Th-2300.1
    Th-231102
    Th-2320.01
    Th-232+0.01
    Th-232sec0.01
    Th-234+10
    Pa-23010
    Pa-2310.01
    Pa-23310
    U-230+1
    U-231102
    U-232+0.1
    U-2331
    U-2341
    U-235+1
    U-235sec0.01
    U-23610
    U-237102
    U-238+1
    U-238sec0.01
    U-239102
    U-240+102
    Np-237+1
    Np-239102
    Np-24010
    Pu-234102
    Pu-235102
    Pu-2361
    Pu-237102
    Pu-2380.1
    Pu-2390.1
    Pu-2400.1
    Pu-24110
    Pu-2420.1
    Pu-243103
    Pu-244+0.1
    Am-2410.1
    Am-242103
    Am-242m+0.1
    Am-243+0.1
    Cm-24210
    Cm-2431
    Cm-2441
    Cm-2450.1
    Cm-2460.1
    Cm-247+0.1
    Cm-2480.1
    Bk-249102
    Cf-246103
    Cf-2481
    Cf-2490.1
    Cf-2501
    Cf-2510.1
    Cf-2521
    Cf-253102
    Cf-253+1
    Cf-2541
    Es-253102
    Es-254+0.1
    Es-254m+10
    Fm-25410 4
    Fm-255102
    Any other solid or relevant liquid radionuclide that is not of natural terrestrial or cosmic origin0.01 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 M1.

  • “The table 2 summation rule” means the sum of the quotient 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 quantity of that radionuclide specified in column 2 of Table 2.

    Table 3
    Radionuclides in secular equilibrium
    Parent RadionuclideDaughter 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-232secRa-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-235secTh-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-238secTh-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
    Table 4
    Activity Levels defining high-activity sealed sources

    1 The activity given is that of the alpha-emitting radionuclide.

    RadionuclideActivity (TBq)
    Am-2416 × 10 –2
    Am-241/Be-9(1)6 × 10 –2
    Cf-2522 × 10 –2
    Cm-2445 × 10 –2
    Co-603 × 10 –2
    Cs-1371 × 10 –1
    Gd-1531 × 10 0
    Ir-1928 × 10 –2
    Pm-1474 × 10 1
    Pu-2386 × 10 –2
    Pu-239/Be-916 × 10 –2
    Ra-2264 × 10 –2
    Se-752 × 10 –1
    Sr-90 (Y-90)1 × 10 0
    Tm-1702 × 10 1
    Yb-1693 × 10 –1
    Any other radionuclideThe D-value defined for that radionuclide in “Dangerous quantities of radioactive material (D-values)”M2

Marginal Citations

M1European Commission: Guidance on General Clearance Levels for Practices, Radiation Protection 122, 2000.

M2Published by the International Atomic Energy Agency in Vienna, Austria (publication date August 2006) (IAEA-EPR-D-Values 2006).

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