Publication - Advice and guidance
Radioactive substances legislation - scope: guidance
Guidance on radioactive substances activities in Scotland that are out of scope of the Environmental Authorisations (Scotland) Regulations 2018 (EASR).
Annex 2: Changes to values in Tables
This Annex shows the changes made to Tables 2 and 3 since the 2011 UK-wide guidance on the Scope and Exemptions from the Radioactive Substances legislation in the UK was published and any deviations from the BSSD 13 values.
| Radionuclide | Solid or ‘relevant liquid’ activity concentration (Bq/g) | Reason for change | |
|---|---|---|---|
| EASR (current) | Previous legislation | ||
| U-238 sec | 1 | 0.5 | To reflect value given in BSSD 13 |
| Ra-226 + | 1 | 0.5 | To reflect value given in BSSD 13 |
| Th-232 sec | 1 | 0.5 | To reflect value given in BSSD 13 |
| Th-228 + | 1 | 0.5 | To reflect value given in BSSD 13 |
| Radionuclide | Solid or ‘relevant liquid’ activity concentration (Bq/g) | Reason for change | |
|---|---|---|---|
| EASR (current) | Previous legislation | ||
| C-14 | 10 | 10 | BSSD 13 value is 1 but the value kept the same for reasons documented in the BEIS consultation[9] |
| F-18 | 10 | 1 | To reflect value given in BSSD 13 |
| Na-24 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Si-31 | 1000 | 100 | To reflect value given in BSSD 13 |
| P-32 | 1000 | 100 | To reflect value given in BSSD 13 |
| P-33 | 1000 | 100 | To reflect value given in BSSD 13 |
| Cl-38 | 10 | 1 | To reflect value given in BSSD 13 |
| K-42 | 100 | 10 | To reflect value given in BSSD 13 |
| K-43 | 10 | 1 | To reflect value given in BSSD 13 |
| Ca-47 | 10 | 1 | To reflect value given in BSSD 13 |
| Sc-47 | 100 | 10 | To reflect value given in BSSD 13 |
| Sc-48 | 1 | 0.1 | To reflect value given in BSSD 13 |
| V-48 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Cr-51 | 100 | 10 | To reflect value given in BSSD 13 |
| Mn-51 | 10 | 1 | To reflect value given in BSSD 13 |
| Mn-52 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Mn-52m | 10 | 1 | To reflect value given in BSSD 13 |
| Mn-53 | 100 | 1000 | To reflect value given in BSSD 13 |
| Mn-56 | 10 | 1 | To reflect value given in BSSD 13 |
| Fe-52+ | 10 | 1 | To reflect value given in BSSD 13 |
| Fe-55 | 1000 | 100 | To reflect value given in BSSD 13 |
| Fe-59 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Co-55 | 10 | 1 | To reflect value given in BSSD 13 |
| Co-58 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Co-58m | 10 000 | 100 | To reflect value given in BSSD 13 |
| Co-62m | 10 | 1 | To reflect value given in BSSD 13 |
| Ni-65 | 10 | 1 | To reflect value given in BSSD 13 |
| Cu-64 | 100 | 10 | To reflect value given in BSSD 13 |
| Zn-65 | 0.1 | 1 | To reflect value given in BSSD 13 |
| Zn-69 | 1000 | 100 | To reflect value given in BSSD 13 |
| Zn-69m+ | 10 | 1 | To reflect value given in BSSD 13 |
| Ga-72 | 10 | 1 | To reflect value given in BSSD 13 |
| As-73 | 1000 | 100 | To reflect value given in BSSD 13 |
| As-74 | 10 | 1 | To reflect value given in BSSD 13 |
| As-76 | 10 | 1 | To reflect value given in BSSD 13 |
| As-77 | 1000 | 100 | To reflect value given in BSSD 13 |
| Br-82 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Rb-86 | 100 | 10 | To reflect value given in BSSD 13 |
| Sr-85m | 100 | 10 | To reflect value given in BSSD 13 |
| Sr-87m | 100 | 10 | To reflect value given in BSSD 13 |
| Sr-89 | 1000 | 10 | To reflect value given in BSSD 13 |
| Sr-91+ | 10 | 1 | To reflect value given in BSSD 13 |
| Sr-92 | 10 | 1 | To reflect value given in BSSD 13 |
| Y-90 | 1000 | 100 | To reflect value given in BSSD 13 |
| Y-91 | 100 | 10 | To reflect value given in BSSD 13 |
| Y-91m | 100 | 1 | To reflect value given in BSSD 13 |
| Y-92 | 100 | 10 | To reflect value given in BSSD 13 |
| Y-93 | 100 | 10 | To reflect value given in BSSD 13 |
| Zr-95+ | 1 | 0.1 | To reflect value given in BSSD 13 |
| Zr-97+ | 10 | 1 | To reflect value given in BSSD 13 |
| Nb-93m | 10 | 100 | To reflect value given in BSSD 13 |
| Nb-97+ | 10 | 1 | To reflect value given in BSSD 13 |
| Nb-98 | 10 | 1 | To reflect value given in BSSD 13 |
| Mo-90 | 10 | 1 | To reflect value given in BSSD 13 |
| Mo-99+ | 10 | 1 | To reflect value given in BSSD 13 |
| Mo-101+ | 10 | 1 | To reflect value given in BSSD 13 |
| Tc-96 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Tc-96m | 1000 | 10 | To reflect value given in BSSD 13 |
| Tc-97m | 100 | 10 | To reflect value given in BSSD 13 |
| Ru-97 | 10 | 1 | To reflect value given in BSSD 13 |
| Ru-105+ | 10 | 1 | To reflect value given in BSSD 13 |
| Ru-106+ | 0.1 | 1 | To reflect value given in BSSD 13 |
| Rh-105 | 100 | 10 | To reflect value given in BSSD 13 |
| Ag-108m+ | 0.1 | 0.1 | Value not given in BSSD but retained from previous legislation |
| Ag-111 | 100 | 10 | To reflect value given in BSSD 13 |
| Cd-109+ | 1 | 10 | To reflect value given in BSSD 13 |
| Cd-115+ | 10 | 1 | To reflect value given in BSSD 13 |
| Cd-115m+ | 100 | 10 | To reflect value given in BSSD 13 |
| In-111 | 10 | 1 | To reflect value given in BSSD 13 |
| In-113m | 100 | 10 | To reflect value given in BSSD 13 |
| In-114m+ | 10 | 1 | To reflect value given in BSSD 13 |
| In-115m | 100 | 10 | To reflect value given in BSSD 13 |
| Sn-125 | 10 | 1 | To reflect value given in BSSD 13 |
| Sb-122 | 10 | 1 | To reflect value given in BSSD 13 |
| Sb-124 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Sb-125+ | 0.1 | 1 | To reflect value given in BSSD 13 |
| Te-125m | 1000 | 100 | To reflect value given in BSSD 13 |
| Te-127 | 1000 | 100 | To reflect value given in BSSD 13 |
| Te-129 | 100 | 10 | To reflect value given in BSSD 13 |
| Te-131 | 100 | 10 | To reflect value given in BSSD 13 |
| Te-131m+ | 10 | 1 | To reflect value given in BSSD 13 |
| Te-132+ | 1 | 0.1 | To reflect value given in BSSD 13 |
| Te-133+ | 1 | 1 | Value of 10 is given in BSSD 13 for Te-133 but it does not include its short- lived progeny, so decision taken to retain previous legislation value which does. |
| Te-133m+ | 1 | 1 | Value of 10 is given in BSSD 13 for Te-133m but it does not include its short-lived progeny, so decision taken to retain value from previous legislation which does. |
| Te-134 | 10 | 1 | To reflect value given in BSSD 13 |
| I-123 | 100 | 10 | To reflect value given in BSSD 13 |
| I-125 | 100 | 1 | To reflect value given in BSSD 13 |
| I-126 | 10 | 1 | To reflect value given in BSSD 13 |
| I-129 | 0.01 | 0.1 | To reflect value given in BSSD 13 |
| I-130 | 10 | 1 | To reflect value given in BSSD 13 |
| I-131+ | 1 | 1 | Value of 10 is given in BSSD 13 for I-131 but it does not include its short-lived progeny, so decision taken to retain previous legislation value which does. |
| I-132 | 10 | 1 | To reflect value given in BSSD 13 |
| I-133 | 10 | 1 | To reflect value given in BSSD 13 |
| I-134 | 10 | 1 | To reflect value given in BSSD 13 |
| I-135 | 10 | 1 | To reflect value given in BSSD 13 |
| Cs-129 | 10 | 1 | To reflect value given in BSSD 13 |
| Cs-132 | 10 | 1 | To reflect value given in BSSD 13 |
| Cs-135 | 100 | 10 | To reflect value given in BSSD 13 |
| Cs-136 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Cs-137+ | 1 | 1 | BSSD 13 value is 1 but the value kept the same for reasons documented in the BEIS consultation[10] |
| Cs-138 | 10 | 1 | To reflect value given in BSSD 13 |
| Ba-131 | 10 | 1 | To reflect value given in BSSD 13 |
| Ba-140 | 1 | 0.1 | To reflect value given in BSSD 13 |
| La-140 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Ce-141 | 100 | 10 | To reflect value given in BSSD 13 |
| Ce-143 | 10 | 1 | To reflect value given in BSSD 13 |
| Ce-144+ | 10 | 10 | BSSD 13 gives Ce-144 rather than Ce-144+. This is a mistake in BSSD 13 as the source data (IAEA Safety Series 44, Table 1) states that progeny are included. |
| Pr-142 | 100 | 10 | To reflect value given in BSSD 13 |
| Pr-143 | 1000 | 100 | To reflect value given in BSSD 13 |
| Nd-147 | 100 | 10 | To reflect value given in BSSD 13 |
| Nd-149 | 100 | 10 | To reflect value given in BSSD 13 |
| Pm-147 | 1000 | 100 | To reflect value given in BSSD 13 |
| Pm-149 | 1000 | 100 | To reflect value given in BSSD 13 |
| Sm-151 | 1000 | 100 | To reflect value given in BSSD 13 |
| Sm-153 | 100 | 10 | To reflect value given in BSSD 13 |
| Eu-152m | 100 | 10 | To reflect value given in BSSD 13 |
| Eu-155 | 1 | 10 | To reflect value given in BSSD 13 |
| Gd-159 | 100 | 10 | To reflect value given in BSSD 13 |
| Tb-160 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Dy-165 | 1000 | 100 | To reflect value given in BSSD 13 |
| Dy-166 | 100 | 10 | To reflect value given in BSSD 13 |
| Ho-166 | 100 | 10 | To reflect value given in BSSD 13 |
| Er-169 | 1000 | 100 | To reflect value given in BSSD 13 |
| Er-171 | 100 | 10 | To reflect value given in BSSD 13 |
| Tm-170 | 100 | 10 | To reflect value given in BSSD 13 |
| Tm-171 | 1000 | 100 | To reflect value given in BSSD 13 |
| Yb-175 | 100 | 10 | To reflect value given in BSSD 13 |
| Lu-177 | 100 | 10 | To reflect value given in BSSD 13 |
| W-185 | 1000 | 100 | To reflect value given in BSSD 13 |
| W-187 | 10 | 1 | To reflect value given in BSSD 13 |
| Re-186 | 1000 | 100 | To reflect value given in BSSD 13 |
| Re-188 | 100 | 10 | To reflect value given in BSSD 13 |
| Os-191 | 100 | 10 | To reflect value given in BSSD 13 |
| Os-193 | 100 | 10 | To reflect value given in BSSD 13 |
| Ir-190 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Ir-192 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Ir-194 | 100 | 10 | To reflect value given in BSSD 13 |
| Pt-191 | 10 | 1 | To reflect value given in BSSD 13 |
| Pt-193m | 1000 | 100 | To reflect value given in BSSD 13 |
| Pt-197 | 1000 | 100 | To reflect value given in BSSD 13 |
| Au-198 | 10 | 1 | To reflect value given in BSSD 13 |
| Au-199 | 100 | 10 | To reflect value given in BSSD 13 |
| Hg-197 | 100 | 10 | To reflect value given in BSSD 13 |
| Hg-197m | 100 | 10 | To reflect value given in BSSD 13 |
| Hg-203 | 10 | 1 | To reflect value given in BSSD 13 |
| Tl-200 | 10 | 1 | To reflect value given in BSSD 13 |
| Tl-201 | 100 | 10 | To reflect value given in BSSD 13 |
| Tl-202 | 10 | 1 | To reflect value given in BSSD 13 |
| Tl-204 | 1 | 10 | To reflect value given in BSSD 13 |
| Pb-203 | 10 | 1 | To reflect value given in BSSD 13 |
| Pb-210+ | 0.01 | 0.01 | Value not given in BSSD 13 but retained from previous legislation |
| Pb-212+ | 1 | 1 | Value not given in BSSD 13 but retained from previous legislation |
| Bi-206 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Bi-210 | 10 | 10 | Value not given in BSSD 13 but retained from previous legislation |
| Bi-212+ | 1 | 1 | Value not given in BSSD 13 but retained from previous legislation |
| Po-203 | 10 | 1 | To reflect value given in BSSD 13 |
| Po-205 | 10 | 1 | To reflect value given in BSSD 13 |
| Po-207 | 10 | 1 | To reflect value given in BSSD 13 |
| Po-210 | 0.01 | 0.01 | Value not given in BSSD 13 but retained from previous legislation |
| At-211 | 1000 | 100 | To reflect value given in BSSD 13 |
| Ra-223+ | 1 | 1 | Value not given in BSSD 13 but retained from previous legislation |
| Ra-224+ | 1 | 1 | Value not given in BSSD 13 but retained from previous legislation |
| Ra-225 | 10 | 1 | To reflect value given in BSSD 13 |
| Ra-226+ | 0.01 | 0.01 | Value not given in BSSD 13 but retained from previous legislation |
| Ra-227 | 100 | 10 | To reflect value given in BSSD 13 |
| Ra-228+ | 0.01 | 0.01 | Value not given in BSSD 13 but retained from previous legislation |
| Ac-227+ | 0.01 | 0.01 | Value not given in BSSD 13 but retained from previous legislation |
| Ac-228 | 1 | 1 | Value not given in BSSD 13 but retained from previous legislation |
| Th-226+ | 100 | 100 | Value of 103 is given in BSSD 13 but it does not include its short-lived progeny, so decision taken to retain value from previous legislation which does. |
| Th-227 | 1 | 1 | Value not given in BSSD 13 but retained from previous legislation |
| Th-228+ | 0.1 | 0.1 | Value not given in BSSD 13 but retained from previous legislation |
| Th-229+ | 0.1 | 0.1 | BSSD 13 gives Th-229 rather than Th-229+. Although the value in BSSD 13 and previous legislation are the same, the value is based on previous legislation which includes short-lived progeny. |
| Th-230 | 0.1 | 0.1 | Value not given in BSSD 13 but retained from previous legislation |
| Th-231 | 100 | 100 | Value not given in BSSD 13 but retained from previous legislation |
| Th-232 | 0.01 | 0.01 | Value not given in BSSD 13 but retained from previous legislation |
| Th-232+ | 0.01 | 0.01 | Value not given in BSSD 13 but retained from previous legislation |
| Th-232sec | 0.01 | 0.01 | Value not given in BSSD 13 but retained from previous legislation |
| Th-234+ | 10 | 10 | Value not given in BSSD 13 but retained from previous legislation |
| Pa-230 | 10 | 1 | To reflect value given in BSSD 13 |
| Pa-231 | 0.01 | 0.01 | Value not given in BSSD 13 but retained from previous legislation |
| U-230+ | 1 | 1 | Value of 10 is given in BSSD 13 but it does not include its short-lived progeny, so decision taken to retain previous legislation value which does. |
| U-231 | 100 | 10 | BSSD 13 gives U-231+ rather than U231. This is a mistake in BSSD 13 as the source data (IAEA Safety Series 44, Table 1) states that progeny are included |
| U-234 | 1 | 1 | Value not given in BSSD 13 but retained from previous legislation |
| U-235+ | 1 | 1 | Value not given in BSSD 13 but retained from previous legislation |
| U-235sec | 0.01 | 0.01 | Value not given in BSSD 13 but retained from previous legislation |
| U-236 | 10 | 1 | To reflect value given in BSSD 13 |
| U-237 | 100 | 10 | To reflect value given in BSSD 13 |
| U-238+ | 1 | 1 | Value not given in BSSD 13 but retained from previous legislation |
| U-238sec | 0.01 | 0.01 | Value not given in BSSD 13 but retained from previous legislation |
| U-240+ | 100 | 10 | To reflect value given in BSSD 13 |
| Np-237+ | 1 | 0.1 | To reflect value given in BSSD 13 |
| Np-239 | 100 | 10 | To reflect value given in BSSD 13 |
| Np-240 | 10 | 1 | To reflect value given in BSSD 13 |
| Pu-236 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Pu-237 | 100 | 10 | To reflect value given in BSSD 13 |
| Pu-241 | 10 | 1 | To reflect value given in BSSD 13 |
| Pu-243 | 1000 | 100 | To reflect value given in BSSD 13 |
| Am-242 | 1000 | 100 | To reflect value given in BSSD 13 |
| Cm-242 | 10 | 1 | To reflect value given in BSSD 13 |
| Cm-243 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Cm-244 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Bk-249 | 100 | 10 | To reflect value given in BSSD 13 |
| Cf-246 | 1000 | 10 | To reflect value given in BSSD 13 |
| Cf-250 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Cf-252 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Cf-253 | 100 | 1 | To reflect value given in BSSD 13 |
| Cf-253+ | 100 | 1 | BSSD 13 only gives a value for Cf-253 so for completeness the value for Cf-253+ has been retained from previous legislation. |
| Cf-254 | 1 | 0.1 | To reflect value given in BSSD 13 |
| Es-253 | 100 | 1 | To reflect value given in BSSD 13 |
| Es-254m+ | 10 | 1 | To reflect value given in BSSD 13 |
| Fm-254 | 10 000 | 100 | To reflect value given in BSSD 13 |
| Fm-255 | 100 | 10 | To reflect value given in BSSD 13 |
Contact
Email: ceu@gov.scot