- Y Diweddaraf sydd Ar Gael (Diwygiedig)
- Gwreiddiol (a wnaed Fel)
There are currently no known outstanding effects for the The Ionising Radiations Regulations (Northern Ireland) 2017, SCHEDULE 7.
Revised legislation carried on this site may not be fully up to date. At the current time any known changes or effects made by subsequent legislation have been applied to the text of the legislation you are viewing by the editorial team. Please see ‘Frequently Asked Questions’ for details regarding the timescales for which new effects are identified and recorded on this site.
Regulations 2(4), 6(2), 31(1), 31(3)and Schedule 1
1 Potassium salts in quantities less than 1,000kg are exempt. | |||||
1 | 2 | 3 | 4 | 5 | 6 |
---|---|---|---|---|---|
Radionuclide name, symbol, isotope | Concentration for: Notification (any amount of radioactive material); Registration (amounts of radioactive material that exceed 1,000kg) | Quantity for Notification | Concentration for Registration (amounts of radioactive material that do not exceed 1,000kg) | Quantity for notification of occurrences | Quantity for notification of occurrences |
Regulation 5(1) and Schedule 1, paragraph 1(a); regulation 6(2)(f) | Regulation 5(1) and Schedule 1, paragraph 1(b) | Regulation 6(2)(e) | Regulation 31(1) | Regulation 31(3) | |
(Bq/g) | (Bq) | (Bq/g) | (Bq) | (Bq) | |
Hydrogen | |||||
H-3 (tritiated compounds) | 102 | 109 | 106 | 1012 | 1010 |
Beryllium | |||||
Be-7 | 10 | 107 | 103 | 1012 | 108 |
Carbon | |||||
C-11 | 0.01 | 106 | 10 | 1013 | 107 |
C-11 (monoxide) | 0.01 | 109 | 10 | 1012 | 1010 |
C-11 (dioxide) | 0.01 | 109 | 10 | 1012 | 1010 |
C-14 | 1 | 107 | 104 | 1011 | 108 |
Oxygen | |||||
O-15 | 0.01 | 109 | 102 | 1010 | |
Fluorine | |||||
F-18 | 10 | 106 | 10 | 1013 | 107 |
Sodium | |||||
Na-22 | 0.1 | 106 | 10 | 1010 | 107 |
Na-24 | 0.1 | 105 | 10 | 1011 | 106 |
Silicon | |||||
Si-31 | 103 | 106 | 103 | 1013 | 107 |
Phosphorus | |||||
P-32 | 103 | 105 | 103 | 1010 | 106 |
P-33 | 103 | 108 | 105 | 1011 | 109 |
Sulphur | |||||
S-35 | 102 | 108 | 105 | 1011 | 109 |
Chlorine | |||||
Cl-36 | 1 | 106 | 104 | 1010 | 107 |
Cl-38 | 10 | 105 | 10 | 1013 | 106 |
Argon | |||||
Ar-37 | 0.01 | 108 | 106 | 1013 | |
Ar-41 | 0.01 | 109 | 102 | 109 | |
Potassium | |||||
K-401 | 1 | 106 | 102 | 1010 | 107 |
K-42 | 102 | 106 | 102 | 1012 | 107 |
K-43 | 10 | 106 | 10 | 1011 | 107 |
Calcium | |||||
Ca-45 | 102 | 107 | 104 | 1010 | 108 |
Ca-47 | 10 | 106 | 10 | 1011 | 107 |
Scandium | |||||
Sc-46 | 0.1 | 106 | 10 | 1010 | 107 |
Sc-47 | 102 | 106 | 102 | 1011 | 107 |
Sc-48 | 1 | 105 | 10 | 1011 | 106 |
Vanadium | |||||
V-48 | 1 | 105 | 10 | 1010 | 106 |
Chromium | |||||
Cr-51 | 102 | 107 | 103 | 1012 | 108 |
Manganese | |||||
Mn-51 | 10 | 105 | 10 | 1013 | 106 |
Mn-52 | 1 | 105 | 10 | 1010 | 106 |
Mn-52m | 10 | 105 | 10 | 1013 | 106 |
Mn-53 | 102 | 109 | 104 | 1012 | 1010 |
Mn-54 | 0.1 | 106 | 10 | 1011 | 107 |
Mn-56 | 10 | 105 | 10 | 1012 | 106 |
Iron | |||||
Fe-52+ | 10 | 106 | 10 | 1012 | 107 |
Fe-55 | 103 | 106 | 104 | 1011 | 107 |
Fe-59 | 1 | 106 | 10 | 1010 | 107 |
Cobalt | |||||
Co-55 | 10 | 106 | 10 | 1011 | 107 |
Co-56 | 0.1 | 105 | 10 | 1010 | 106 |
Co-57 | 1 | 106 | 102 | 1011 | 107 |
Co-58 | 1 | 106 | 10 | 1010 | 107 |
Co-58m | 104 | 107 | 104 | 1013 | 108 |
Co-60 | 0.1 | 105 | 10 | 1010 | 106 |
Co-60m | 103 | 106 | 103 | 1016 | 107 |
Co-61 | 102 | 106 | 102 | 1013 | 107 |
Co-62m | 10 | 105 | 10 | 1013 | 106 |
Nickel | |||||
Ni-59 | 102 | 108 | 104 | 1011 | 109 |
Ni-63 | 102 | 108 | 105 | 1011 | 109 |
Ni-65 | 10 | 106 | 10 | 1013 | 107 |
Copper | |||||
Cu-64 | 102 | 106 | 102 | 1012 | 107 |
Zinc | |||||
Zn-65 | 0.1 | 106 | 10 | 1010 | 107 |
Zn-69 | 103 | 106 | 104 | 1014 | 107 |
Zn-69m+ | 10 | 106 | 102 | 1012 | 107 |
Gallium | |||||
Ga-68 | 0.01 | 105 | 10 | 1013 | 106 |
Ga-72 | 10 | 105 | 10 | 1011 | 106 |
Germanium | |||||
Ge-68+ | 0.01 | 105 | 10 | 1010 | 106 |
Ge-71 | 104 | 108 | 104 | 1013 | 109 |
Arsenic | |||||
As-73 | 103 | 107 | 103 | 1011 | 108 |
As-74 | 10 | 106 | 10 | 1011 | 107 |
As-76 | 10 | 105 | 102 | 1011 | 106 |
As-77 | 103 | 106 | 103 | 1012 | 107 |
Selenium | |||||
Se-75 | 1 | 106 | 102 | 1011 | 107 |
Bromine | |||||
Br-82 | 1 | 106 | 10 | 1011 | 107 |
Krypton | |||||
Kr-74 | 0.01 | 109 | 102 | 109 | |
Kr-76 | 0.01 | 109 | 102 | 1010 | |
Kr-77 | 0.01 | 109 | 102 | 109 | |
Kr-79 | 0.01 | 105 | 103 | 1010 | |
Kr-81 | 0.01 | 107 | 104 | 1011 | |
Kr-83m | 0.01 | 1012 | 105 | 1012 | |
Kr-85 | 0.01 | 104 | 105 | 1012 | |
Kr-85m | 0.01 | 1010 | 103 | 1010 | |
Kr-87 | 0.01 | 109 | 102 | 109 | |
Kr-88 | 0.01 | 109 | 102 | 109 | |
Rubidium | |||||
Rb-86 | 102 | 105 | 102 | 1011 | 106 |
Strontium | |||||
Sr-85 | 1 | 106 | 102 | 1011 | 107 |
Sr-85m | 102 | 107 | 102 | 1013 | 108 |
Sr-87m | 102 | 106 | 102 | 1013 | 107 |
Sr-89 | 103 | 106 | 103 | 1010 | 107 |
Sr-90+ | 1 | 104 | 102 | 109 | 105 |
Sr-91+ | 10 | 105 | 10 | 1012 | 106 |
Sr-92 | 10 | 106 | 10 | 1012 | 107 |
Yttrium | |||||
Y-90 | 103 | 105 | 103 | 1011 | 106 |
Y-91 | 102 | 106 | 103 | 1010 | 107 |
Y-91m | 102 | 106 | 102 | 1013 | 107 |
Y-92 | 102 | 105 | 102 | 1012 | 106 |
Y-93 | 102 | 105 | 102 | 1012 | 106 |
Zirconium | |||||
Zr-93+ | 10 | 107 | 103 | 109 | 108 |
Zr-95+ | 1 | 106 | 10 | 1010 | 107 |
Zr-97+ | 10 | 105 | 10 | 1011 | 106 |
Niobium | |||||
Nb-93m | 10 | 107 | 104 | 1011 | 108 |
Nb-94 | 0.1 | 106 | 10 | 109 | 107 |
Nb-95 | 1 | 106 | 10 | 1011 | 107 |
Nb-97+ | 10 | 106 | 10 | 1013 | 107 |
Nb-98 | 10 | 105 | 10 | 1013 | 106 |
Molybdenum | |||||
Mo-90 | 10 | 106 | 10 | 1012 | 107 |
Mo-93 | 10 | 108 | 103 | 1011 | 109 |
Mo-99+ | 10 | 106 | 102 | 1011 | 107 |
Mo-101+ | 10 | 106 | 10 | 1013 | 107 |
Technetium | |||||
Tc-96 | 1 | 106 | 10 | 1011 | 107 |
Tc-96m | 103 | 107 | 103 | 1014 | 108 |
Tc-97 | 10 | 108 | 103 | 1012 | 109 |
Tc-97m | 102 | 107 | 103 | 1010 | 108 |
Tc-99 | 1 | 107 | 104 | 1010 | 108 |
Tc-99m | 102 | 107 | 102 | 1013 | 108 |
Ruthenium | |||||
Ru-97 | 10 | 107 | 102 | 1012 | 108 |
Ru-103+ | 1 | 106 | 102 | 1010 | 107 |
Ru-105+ | 10 | 106 | 10 | 1012 | 107 |
Ru-106+ | 0.1 | 105 | 102 | 109 | 106 |
Rhodium | |||||
Rh-103m | 104 | 108 | 104 | 1015 | 109 |
Rh-105 | 102 | 107 | 102 | 1012 | 108 |
Palladium | |||||
Pd-103+ | 103 | 108 | 103 | 1011 | 109 |
Pd-109+ | 102 | 106 | 103 | 1012 | 107 |
Silver | |||||
Ag-105 | 1 | 106 | 102 | 1011 | 107 |
Ag-108m+ | 0.1 | 106 | 10 | 1010 | 107 |
Ag-110m+ | 0.1 | 106 | 10 | 1010 | 107 |
Ag-111 | 102 | 106 | 103 | 1011 | 107 |
Cadmium | |||||
Cd-109+ | 1 | 106 | 104 | 1010 | 107 |
Cd-115+ | 10 | 106 | 102 | 1011 | 107 |
Cd-115m+ | 102 | 106 | 103 | 1010 | 107 |
Indium | |||||
In-111 | 10 | 106 | 102 | 1011 | 107 |
In-113m | 102 | 106 | 102 | 1013 | 107 |
In-114m+ | 10 | 106 | 102 | 1010 | 107 |
In-115m | 102 | 106 | 102 | 1013 | 107 |
Tin | |||||
Sn-113+ | 1 | 107 | 103 | 1011 | 108 |
Sn-125 | 10 | 105 | 102 | 1010 | 106 |
Antimony | |||||
Sb-122 | 10 | 104 | 102 | 1011 | 105 |
Sb-124 | 1 | 106 | 10 | 1010 | 107 |
Sb-125+ | 0.1 | 106 | 102 | 1010 | 107 |
Tellurium | |||||
Te-123m | 1 | 107 | 102 | 1010 | 108 |
Te-125m | 103 | 107 | 103 | 1010 | 108 |
Te-127 | 103 | 106 | 103 | 1012 | 107 |
Te-127m+ | 10 | 107 | 103 | 1010 | 108 |
Te-129 | 102 | 106 | 102 | 1014 | 107 |
Te-129m+ | 10 | 106 | 103 | 1010 | 107 |
Te-131 | 102 | 105 | 102 | 1014 | 106 |
Te-131m+ | 10 | 106 | 10 | 1011 | 107 |
Te-132+ | 1 | 107 | 102 | 1011 | 108 |
Te-133 | 10 | 105 | 10 | 1014 | 106 |
Te-133m | 10 | 105 | 10 | 1013 | 106 |
Te-134 | 10 | 106 | 10 | 1013 | 107 |
Iodine | |||||
I-123 | 102 | 107 | 102 | 1012 | 108 |
I-125 | 102 | 106 | 103 | 1010 | 107 |
I-126 | 10 | 106 | 102 | 1010 | 107 |
I-129 | 0.01 | 105 | 102 | 109 | 106 |
I-130 | 10 | 106 | 10 | 1011 | 107 |
I-131 | 10 | 106 | 102 | 1010 | 107 |
I-132 | 10 | 105 | 10 | 1012 | 106 |
I-133 | 10 | 106 | 10 | 1011 | 107 |
I-134 | 10 | 105 | 10 | 1013 | 106 |
I-135 | 10 | 106 | 10 | 1012 | 107 |
Xenon | |||||
Xe-131m | 0.01 | 104 | 104 | 1011 | |
Xe-133 | 0.01 | 104 | 103 | 1011 | |
Xe-135 | 0.01 | 1010 | 103 | 1010 | |
Caesium | |||||
Cs-129 | 10 | 105 | 102 | 1012 | 106 |
Cs-131 | 103 | 106 | 103 | 1012 | 107 |
Cs-132 | 10 | 105 | 10 | 1011 | 106 |
Cs-134 | 0.1 | 104 | 10 | 1010 | 105 |
Cs-134m | 103 | 105 | 103 | 1014 | 106 |
Cs-135 | 102 | 107 | 104 | 1011 | 108 |
Cs-136 | 1 | 105 | 10 | 1010 | 106 |
Cs-137+ | 0.1 | 104 | 10 | 1010 | 105 |
Cs-138 | 10 | 104 | 10 | 1013 | 105 |
Barium | |||||
Ba-131 | 10 | 106 | 102 | 1011 | 107 |
Ba-140+ | 1 | 105 | 10 | 1011 | 106 |
Lanthanum | |||||
La-140 | 1 | 105 | 10 | 1011 | 106 |
Cerium | |||||
Ce-139 | 1 | 106 | 102 | 1011 | 107 |
Ce-141 | 102 | 107 | 102 | 1010 | 108 |
Ce-143 | 10 | 106 | 102 | 1011 | 107 |
Ce-144+ | 10 | 105 | 102 | 109 | 106 |
Praseodymium | |||||
Pr-142 | 102 | 105 | 102 | 1012 | 106 |
Pr-143 | 103 | 106 | 104 | 1011 | 107 |
Neodymium | |||||
Nd-147 | 102 | 106 | 102 | 1011 | 107 |
Nd-149 | 102 | 106 | 102 | 1013 | 107 |
Promethium | |||||
Pm-147 | 103 | 107 | 104 | 1010 | 108 |
Pm-149 | 103 | 106 | 103 | 1011 | 107 |
Samarium | |||||
Sm-151 | 103 | 108 | 104 | 1010 | 109 |
Sm-153 | 102 | 106 | 102 | 1011 | 107 |
Europium | |||||
Eu-152 | 0.1 | 106 | 10 | 109 | 107 |
Eu-152m | 102 | 106 | 102 | 1012 | 107 |
Eu-154 | 0.1 | 106 | 10 | 109 | 107 |
Eu-155 | 1 | 107 | 102 | 1010 | 108 |
Gadolinium | |||||
Gd-153 | 10 | 107 | 102 | 1010 | 108 |
Gd-159 | 102 | 106 | 103 | 1012 | 107 |
Terbium | |||||
Tb-160 | 1 | 106 | 1 | 1010 | 107 |
Dysprosium | |||||
Dy-165 | 103 | 106 | 103 | 1013 | 107 |
Dy-166 | 102 | 106 | 103 | 1011 | 107 |
Holmium | |||||
Ho-166 | 102 | 105 | 103 | 1011 | 106 |
Erbium | |||||
Er-169 | 103 | 107 | 104 | 1011 | 108 |
Er-171 | 102 | 106 | 102 | 1012 | 107 |
Thulium | |||||
Tm-170 | 102 | 106 | 103 | 1010 | 107 |
Tm-171 | 103 | 108 | 104 | 1011 | 109 |
Ytterbium | |||||
Yb-175 | 102 | 107 | 103 | 1011 | 108 |
Lutetium | |||||
Lu-177 | 102 | 107 | 103 | 1011 | 108 |
Hafnium | |||||
Hf-181 | 1 | 106 | 10 | 1010 | 107 |
Tantalum | |||||
Ta-182 | 0.1 | 104 | 10 | 1010 | 105 |
Tungsten | |||||
W-181 | 10 | 107 | 103 | 1012 | 108 |
W-185 | 103 | 107 | 104 | 1011 | 108 |
W-187 | 10 | 106 | 102 | 1012 | 107 |
Rhenium | |||||
Re-186 | 103 | 106 | 103 | 1011 | 107 |
Re-188 | 102 | 105 | 102 | 1012 | 106 |
Osmium | |||||
Os-185 | 1 | 106 | 10 | 1011 | 107 |
Os-191 | 102 | 107 | 102 | 1011 | 108 |
Os-191m | 103 | 107 | 103 | 1012 | 108 |
Os-193 | 102 | 106 | 102 | 1011 | 107 |
Iridium | |||||
Ir-190 | 1 | 106 | 10 | 1010 | 107 |
Ir-192 | 1 | 104 | 10 | 1010 | 105 |
Ir-194 | 102 | 105 | 102 | 1011 | 106 |
Platinum | |||||
Pt-191 | 10 | 106 | 102 | 1011 | 107 |
Pt-193m | 103 | 107 | 103 | 1012 | 108 |
Pt-197 | 10 | 106 | 103 | 1012 | 107 |
Pt-197m | 102 | 106 | 102 | 1014 | 107 |
Gold | |||||
Au-198 | 10 | 106 | 102 | 1011 | 107 |
Au-199 | 102 | 106 | 102 | 1011 | 107 |
Mercury | |||||
Hg-197 | 102 | 107 | 102 | 1012 | 108 |
Hg-197m | 102 | 106 | 102 | 1012 | 107 |
Hg-203 | 10 | 105 | 102 | 1011 | 106 |
Thallium | |||||
Tl-200 | 10 | 106 | 10 | 1011 | 107 |
Tl-201 | 102 | 106 | 102 | 1012 | 107 |
Tl-202 | 10 | 106 | 102 | 1011 | 107 |
Tl-204 | 1 | 104 | 104 | 1011 | 105 |
Lead | |||||
Pb-203 | 10 | 106 | 102 | 1012 | 107 |
Pb-210+ | 0.01 | 104 | 10 | 108 | 105 |
Pb-212+ | 1 | 105 | 10 | 1010 | 106 |
Bismuth | |||||
Bi-206 | 1 | 105 | 10 | 1010 | 106 |
Bi-207 | 0.1 | 106 | 10 | 1010 | 107 |
Bi-210 | 10 | 106 | 103 | 109 | 107 |
Bi-212+ | 1 | 105 | 10 | 1011 | 106 |
Polonium | |||||
Po-203 | 10 | 106 | 10 | 1013 | 107 |
Po-205 | 10 | 106 | 10 | 1012 | 107 |
Po-207 | 10 | 106 | 10 | 1012 | 107 |
Po-210 | 0.01 | 104 | 10 | 107 | 105 |
Astatine | |||||
At-211 | 103 | 107 | 103 | 1010 | 108 |
Radon | |||||
Rn-220+ | 0.01 | 107 | 104 | 108 | 108 |
Rn-222+ | 0.01 | 108 | 10 | 109 | 109 |
Radium | |||||
Ra-223+ | 1 | 105 | 102 | 107 | 106 |
Ra-224+ | 1 | 105 | 10 | 108 | 106 |
Ra-225 | 10 | 105 | 102 | 107 | 106 |
Ra-226+ | 0.01 | 104 | 10 | 107 | 105 |
Ra-227 | 102 | 106 | 102 | 1013 | 107 |
Ra-228+ | 0.01 | 105 | 10 | 108 | 106 |
Actinium | |||||
Ac-228 | 1 | 106 | 10 | 1010 | 107 |
Thorium | |||||
Th-226+ | 103 | 107 | 103 | 1011 | 108 |
Th-227 | 1 | 104 | 10 | 107 | 105 |
Th-228+ | 0.1 | 104 | 1 | 106 | 105 |
Th-229+ | 0.1 | 103 | 1 | 106 | 104 |
Th-230 | 0.1 | 104 | 1 | 106 | 105 |
Th-231 | 102 | 107 | 103 | 1012 | 108 |
Th-232 | 0.01 | 104 | 10 | 106 | 105 |
Th-234+ | 10 | 105 | 103 | 1010 | 106 |
Protactinium | |||||
Pa-230 | 10 | 106 | 10 | 108 | 107 |
Pa-231 | 0.01 | 103 | 1 | 106 | 104 |
Pa-233 | 10 | 107 | 102 | 1010 | 108 |
Uranium | |||||
U-230+ | 10 | 105 | 10 | 107 | 106 |
U-231 | 102 | 107 | 102 | 1011 | 108 |
U-232+ | 0.1 | 103 | 1 | 106 | 104 |
U-233 | 1 | 104 | 10 | 107 | 105 |
U-234 | 1 | 104 | 10 | 107 | 105 |
U-235+ | 1 | 104 | 10 | 107 | 105 |
U-236 | 10 | 104 | 10 | 107 | 105 |
U-237 | 102 | 106 | 102 | 1011 | 107 |
U-238+ | 1 | 104 | 10 | 107 | 105 |
U-239 | 102 | 106 | 102 | 1014 | 107 |
U-240 | 0.01 | 107 | 103 | 1012 | 108 |
U-240+ | 102 | 106 | 10 | 1011 | 107 |
Neptunium | |||||
Np-237+ | 1 | 103 | 1 | 107 | 104 |
Np-239 | 102 | 107 | 102 | 1011 | 108 |
Np-240 | 10 | 106 | 10 | 1013 | 107 |
Plutonium | |||||
Pu-234 | 102 | 107 | 102 | 1010 | 108 |
Pu-235 | 102 | 107 | 102 | 1014 | 108 |
Pu-236 | 1 | 104 | 10 | 107 | 105 |
Pu-237 | 102 | 107 | 103 | 1011 | 108 |
Pu-238 | 0.1 | 104 | 1 | 106 | 105 |
Pu-239 | 0.1 | 104 | 1 | 106 | 105 |
Pu-240 | 0.1 | 103 | 1 | 106 | 104 |
Pu-241 | 10 | 105 | 102 | 108 | 106 |
Pu-242 | 0.1 | 104 | 1 | 106 | 105 |
Pu-243 | 103 | 107 | 103 | 1013 | 108 |
Pu-244+ | 0.1 | 104 | 1 | 106 | 105 |
Americium | |||||
Am-241 | 0.1 | 104 | 1 | 106 | 105 |
Am-242 | 103 | 106 | 103 | 1010 | 107 |
Am-242m+ | 0.1 | 104 | 1 | 106 | 105 |
Am-243+ | 0.1 | 103 | 1 | 106 | 104 |
Curium | |||||
Cm-242 | 10 | 105 | 102 | 107 | 106 |
Cm-243 | 1 | 104 | 1 | 107 | 105 |
Cm-244 | 1 | 104 | 10 | 107 | 105 |
Cm-245 | 0.1 | 103 | 1 | 106 | 104 |
Cm-246 | 0.1 | 103 | 1 | 106 | 104 |
Cm-247+ | 0.1 | 104 | 1 | 106 | 105 |
Cm-248 | 0.1 | 103 | 1 | 106 | 104 |
Berkelium | |||||
Bk-249 | 102 | 106 | 103 | 109 | 107 |
Californium | |||||
Cf-246 | 103 | 106 | 103 | 109 | 107 |
Cf-248 | 1 | 104 | 10 | 107 | 105 |
Cf-249 | 0.1 | 103 | 1 | 106 | 104 |
Cf-250 | 1 | 104 | 10 | 106 | 105 |
Cf-251 | 0.1 | 103 | 1 | 106 | 104 |
Cf-252 | 1 | 104 | 10 | 107 | 105 |
Cf-253 | 102 | 105 | 102 | 108 | 106 |
Cf-254 | 1 | 103 | 1 | 107 | 104 |
Einsteinium | |||||
Es-253 | 102 | 105 | 102 | 108 | 106 |
Es-254+ | 0.1 | 104 | 10 | 107 | 105 |
Es-254m+ | 10 | 106 | 102 | 109 | 107 |
Fermium | |||||
Fm-254 | 104 | 107 | 104 | 1010 | 108 |
Fm-255 | 102 | 106 | 103 | 109 | 107 |
Other radionuclides not listed above (see Note 1) | |||||
0.01 | 103 | 0.1 | 105 | 104 | |
Note 1 In the case of radionuclides not specified elsewhere in this Part, the quantities specified in this entry are to be used unless the Executive has approved some other quantity for that radionuclide. | |||||
Note 2 Nuclides carrying the suffix “+” in the above table represent parent nuclides and their progeny as listed in the table below. The dose contributions for those progeny are taken into account in the dose calculation (thus requiring only the exemption level of the parent radionuclide to be considered). |
Parent radionuclide | Progeny |
---|---|
Fe-52 | Mn-52m |
Zn-69m | Zn-69 |
Ge-68 | Ga-68 |
Sr-90 | Y-90 |
Sr-91 | Y-91m |
Zr-93 | Nb-93m |
Zr-95 | Nb-95 |
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 |
Cs-137 | Ba-137m |
Ba-140 | La-140 |
Ce-144 | Pr-144, Pr-144m |
Pb-210 | Bi-210, Po-210 |
Pb-212 | Bi-212, Ti-208, Po-212 |
Bi-212 | Ti-208, Po-212 |
Rn-220 | Po-216 |
Rn-222 | Po-218, Pb-214, Bi-214, Po-214 |
Ra-223 | Rn-219, Po-215, Pb-211, Bi-211, Ti-207 |
Ra-224 | Rn-220, Po-216, Pb-212, Bi-212, Ti-208, Po-212 |
Ra-226 | Rn-222, Po-218, Pb-214, Bi-214, Po-214, Pb-210, Bi-210, Po-210 |
Ra-228 | Ac-228 |
Th-226 | Ra-222, Rn-218, Po-214 |
Th-228 | Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Ti-208, Po-212 |
Th-229 | Ra-225, Ac-225, Fr-221, At-217, Bi-213, Po-213, Pb-209 |
Th-234 | Pa-234m |
U-230 | Th-226, Ra-222, Rn-218, Po-214 |
U-232 | Th-228, Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Ti-208, Po-212 |
U-235 | Th-231 |
U-238 | Th-234, Pa-234m |
U-240 | Np-240m, Np-240 |
Np-237 | Pa-233 |
Pu-244 | U-240, Np-240m, Np-240 |
Am-242m | Am-242, Np-238 |
Am-243 | Np-239 |
Cm-247 | Pu-243 |
Es-254 | Bk-250 |
Es-254m | Fm-254 |
Regulations 2(4), 6(2)and Schedule 1
1 Potassium salts in quantities less than 1,000kg are exempt. | |||
1 | 2 | 3 | 4 |
---|---|---|---|
Radionuclide name, symbol, isotope | Concentration for: Notification (any amount of radioactive material); Registration (amounts of radioactive material that exceed 1,000kg) | Quantity for Notification | Concentration for Registration (amounts of radioactive material that do not exceed 1,000kg) |
Regulation 5(1) and Schedule 1, paragraph 1(a); regulation 6(2)(f) | Regulation 5(1) and Schedule 1, paragraph 1(b) | Regulation 6(2)(e) | |
(Bq/g) | (Bq) | (Bq/g) | |
K-401 | 10 | 106 | 102 |
Rb-87 | 1 | 107 | 104 |
Pb-210+ | 1 | 104 | 10 |
Po-210 | 1 | 104 | 10 |
Ra-226+ | 1 | 104 | 10 |
Ra-228+ | 1 | 105 | 10 |
Th-228+ | 1 | 104 | 1 |
Th-232 sec | 1 | 103 | 1 |
U-238 sec | 1 | 103 | 1 |
Note Nuclides carrying the suffix “+” in the above table represent parent nuclides and their progeny as listed in the table below. The dose contributions of those progeny are taken into account in the dose calculation (thus requiring only the exemption level of the parent radionuclide to be considered). |
Parent radionuclide | Progeny |
---|---|
Pb-210 | Bi-210, Po-210 |
Ra-226 | Rn-222, Po-218, Pb-214, Bi-214, Po-214, Pb-210, Bi-210, Po-210 |
Ra-228 | Ac-228 |
Th-228 | Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208, Po-212 |
Regulation 2(4)
1. For the purpose of Regulation 2(4)—N.I.
(a)the quantity ratio for more than one radionuclide is the sum of the quotients of the quantity of a radionuclide present Qp divided by the quantity of that radionuclide specified in the appropriate entry in Parts 1,2 or 4 of this Schedule Qlim, namely—
(b)the concentration ratio for more than one radionuclide is the sum of the quotients of the concentration of a radionuclide present Cp divided by the concentration of that radionuclide specified in the appropriate entry in Parts 1 or 2 of this Schedule Clim, namely—
2. In any case where the isotopic composition of a radioactive substance is not known or is only partially known, the quantity or concentration ratio for that substance is to be calculated by using the values specified in the appropriate column in Part 1 of this Schedule for ‘other radionuclides not listed above’ for any radionuclide that has not been identified or where the quantity or concentration of a radionuclide is uncertain, unless the employer can show that the use of some other value is appropriate in the circumstances of a particular case, when the employer may use that value.N.I.
Regulations 2(1) and 2(4)
1 The activity given is that of the alpha-emitting radionuclide. | |
Radionuclide | Quantity (Bq) |
---|---|
Co-60 | 3 × 1010 |
Se-75 | 2 × 1011 |
Sr-90 (Y-90) | 1 × 1012 |
Cs-137 | 1 × 1011 |
Pm-147 | 4 × 1013 |
Gd-153 | 1 × 1012 |
Tm-170 | 2 × 1013 |
Yb-169 | 3 × 1011 |
Ir-192 | 8 × 1010 |
Ra-226 | 4 × 1010 |
Pu-238 | 6 × 1010 |
Pu-239/Be-91 | 6 × 1010 |
Am-241 | 6 × 1010 |
Am-241/Be-91 | 6 × 1010 |
Cm-244 | 5 × 1010 |
Cf-252 | 2 × 1010 |
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