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The Environmental Authorisations (Scotland) Regulations 2018

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PART 6Tables

Table 1

Concentration of radionuclides: NORM industrial activities

RadionuclideSolid 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-238sec10.10.001
U-238+5100.01
U-2345100.01
Th-23010100.001
Ra-226+110.01
Pb-210+50.10.01
Po-21050.10.01
U-235sec10.10.0001
U-235+5100.01
Pa-231510.001
Ac-227+10.10.001
Th-232sec10.10.001
Th-2325100.001
Ra-228+10.10.01
Th-228+110.001

“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(1).

“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

RadionuclideActivity (TBq)
(1)

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

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-9(1)6 × 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)”(2)

Table 5

Information to be provided in records for high-activity sealed sources

James - landscape form (2)
(1)

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

(2)

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

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