Dangerous quantities of radioactive material

D-values — More than this amount is dangerous if not controlled.
(1/100 not dangerous unless internally ingested; 10x is very dangerous).
Radionuclide D-value in TBq
(1 TBq = 27 Ci)
H-3 2.E+03
Be-7 1.E+00
Be-10 3.E+01
C-11 6.E-02
C-14 5.E+01
N-13 6.E-02
F-18 6.E-02
Na-22 3.E-02
Na-24 2.E-02
Mg-28 2.E-02
Al-26 3.E-02
Si-31 1.E+01
Si-32 7.E+00
P-32 1.E+01
P-33 2.E+02
S-35 6.E+01
Cl-36 2.E+01
Cl-38 5.E-02
Ar-37 UNLIMITED
Ar-39 3.E+02
Ar-41 5.E-02
K-40 UNLIMITED
K-42 2.E-01
K-43 7.E-02
Ca-41 UNLIMITED
Ca-45 1.E+02
Ca-47 6.E-02
Sc-44 3.E-02
Sc-46 3.E-02
Sc-47 7.E-01
Sc-48 2.E-02
Ti-44 3.E-02
V-48 2.E-02
V-49 2.E+03
Cr-51 2.E+00
Mn-52 2.E-02
Mn-53 UNLIMITED
Mn-54 8.E-02
Mn-56 4.E-02
Fe-52 2.E-02
Fe-55 8.E+02
Fe-59 6.E-02
Fe-60 6.E-02
Co-55 3.E-02
Co-56 2.E-02
Co-57 7.E-01
Co-58 7.E-02
Co-58 7.E-02
Co-60 3.E-02
Ni-59 1.E+03
Ni-63 6.E+01
Ni-65 1.E-01
Cu-64 3.E-01
Cu-67 7.E-01
Zn-65 1.E-01
Zn-69 3.E+01
Zn-69 2.E-01
Ga-67 5.E-01
Ga-68 7.E-02
Ga-72 3.E-02
Ge-68 7.E-02
Ge-71 1.E+03
Ge-77 6.E-02
As-72 4.E-02
As-73 4.E+01
As-74 9.E-02
As-76 2.E-01
As-77 8.E+00
Se-75 2.E-01
Se-79 2.E+02
Br-76 3.E-02
Br-77 2.E-01
Br-82 3.E-02
Kr-81 3.E+01
Kr-85 3.E+01
Kr-85 5.E-01
Kr-87 9.E-02
Rb-81 1.E-01
Rb-83 1.E-01
Rb-84 7.E-02
Rb-86 7.E-01
Rb-87 UNLIMITED
Sr-82 6.E-02
Sr-85 1.E-01
Sr-85 1.E-01
Sr-87 2.E-01
Sr-89 2.E+01
Sr-90 1.E+00
Sr-91 6.E-02
Sr-92 4.E-02
Y-87 9.E-02
Y-88 3.E-02
Y-90 5.E+00
Y-91 8.E+00
Y-91 1.E-01
Y-92 2.E-01
Y-93 6.E-01
Zr-88 2.E-02
Zr-93 UNLIMITED
Zr-95 4.E-02
Zr-97 4.E-02
Nb-93 3.E+02
Nb-94 4.E-02
Nb-95 9.E-02
Nb-97 1.E-01
Mo-93 3.E+02
Mo-99 3.E-01
Tc-95 1.E-01
Tc-96 3.E-02
Tc-96 3.E-02
Tc-97 UNLIMITED
Tc-97 4.E+01
Tc-98 5.E-02
Tc-99 3.E+01
Tc-99 7.E-01
Ru-97 3.E-01
Ru-103 1.E-01
Ru-105 8.E-02
Ru-106 3.E-01
Rh-99 1.E-01
Rh-101 3.E-01
Rh-102 3.E-02
Rh-102 1.E-01
Rh-103 9.E+02
Rh-105 9.E-01
Pd-103 9.E+01
Pd-107 UNLIMITED
Pd-109 2.E+01
Ag-105 1.E-01
Ag-108 4.E-02
Ag-110 2.E-02
Ag-111 2.E+00
Cd-109 2.E+01
Cd-113 4.E+01
Cd-115 2.E-01
Cd-115 3.E+00
In-111 2.E-01
In-113 3.E-01
In-114 8.E-01
In-115 4.E-01
Sn-113 3.E-01
Sn-117 5.E-01
Sn-119 7.E+01
Sn-121 7.E+01
Sn-123 7.E+00
Sn-125 1.E-01
Sn-126 3.E-02
Sb-122 1.E-01
Sb-124 4.E-02
Sb-125 2.E-01
Sb-126 2.E-02
Te-121 1.E-01
Te-121 1.E-01
Te-123 6.E-01
Te-125 1.E+01
Te-127 1.E+01
Te-127 3.E+00
Te-129 1.E+00
Te-129 1.E+00
Te-131 4.E-02
Te-132 3.E-02
I-123 5.E-01
I-124 6.E-02
I-125 2.E-01
I-126 1.E-01
I-129 UNLIMITED
I-131 2.E-01
I-132 3.E-02
I-133 1.E-01
I-134 3.E-02
I-135 4.E-02
Xe-122 6.E-02
Xe-123 9.E-02
Xe-127 3.E-01
Xe-131 1.E+01
Xe-133 3.E+00
Xe-135 3.E-01
Cs-129 3.E-01
Cs-131 2.E+01
Cs-132 1.E-01
Cs-134 4.E-02
Cs-134 4.E-02
Cs-135 UNLIMITED
Cs-136 3.E-02
Cs-137 1.E-01
Ba-131 2.E-01
Ba-133 2.E-01
Ba-133 3.E-01
Ba-140 3.E-02
La-137 2.E+01
La-140 3.E-02
Ce-139 6.E-01
Ce-141 1.E+00
Ce-143 3.E-01
Ce-144 9.E-01
Pr-142 1.E+00
Pr-143 3.E+01
Nd-147 6.E-01
Nd-149 2.E-01
Pm-143 2.E-01
Pm-144 4.E-02
Pm-145 1.E+01
Pm-147 4.E+01
Pm-148 3.E-02
Pm-149 6.E+00
Pm-151 2.E-01
Sm-145 4.E+00
Sm-147 UNLIMITED
Sm-151 5.E+02
Sm-153 2.E+00
Eu-147 2.E-01
Eu-148 3.E-02
Eu-149 2.E+00
Eu-150 2.E+00
Eu-150 5.E-02
Eu-152 6.E-02
Eu-152 2.E-01
Eu-154 6.E-02
Eu-155 2.E+00
Eu-156 5.E-02
Gd-146 3.E-02
Gd-148 4.E-01
Gd-153 1.E+00
Gd-159 2.E+00
Tb-157 1.E+02
Tb-158 9.E-02
Tb-160 6.E-02
Dy-159 6.E+00
Dy-165 3.E+00
Dy-166 1.E+00
Ho-166 2.E+00
Ho-166 4.E-02
Er-169 2.E+02
Er-171 2.E-01
Tm-167 6.E-01
Tm-170 2.E+01
Tm-171 3.E+02
Yb-169 3.E-01
Yb-175 2.E+00
Lu-172 4.E-02
Lu-173 9.E-01
Lu-174 8.E-01
Lu-174 6.E-01
Lu-177 2.E+00
Hf-172 4.E-02
Hf-175 2.E-01
Hf-181 1.E-01
Hf-182 5.E-02
Ta-178 7.E-02
Ta-179 6.E+00
Ta-182 6.E-02
W-178 9.E-01
W-181 5.E+00
W-185 1.E+02
W-187 1.E-01
W-188 1.E+00
Re-184 8.E-02
Re-184 7.E-02
Re-186 4.E+00
Re-187 UNLIMITED
Re-188 1.E+00
Re-189 1.E+00
Os-185 1.E-01
Os-191 2.E+00
Os-191 1.E+00
Os-193 1.E+00
Os-194 7.E-01
Ir-189 1.E+00
Ir-190 5.E-02
Ir-192 8.E-02
Ir-194 7.E-01
Pt-188 4.E-02
Pt-191 3.E-01
Pt-193 3.E+03
Pt-193 1.E+01
Pt-195 2.E+00
Pt-197 4.E+00
Pt-197 9.E-01
Au-193 6.E-01
Au-194 7.E-02
Au-195 2.E+00
Au-198 2.E-01
Au-199 9.E-01
Hg-194 7.E-02
Hg-195 2.E-01
Hg-197 2.E+00
Hg-197 7.E-01
Hg-203 3.E-01
Tl-200 5.E-02
Tl-201 1.E+00
Tl-202 2.E-01
Tl-204 2.E+01
Pb-201 9.E-02
Pb-202 2.E-01
Pb-203 2.E-01
Pb-205 UNLIMITED
Pb-210 3.E-01
Pb-212 5.E-02
Bi-205 4.E-02
Bi-206 2.E-02
Bi-207 5.E-02
Bi-210 8.E+00
Bi-210 3.E-01
Bi-212 5.E-02
Po-210 6.E-02
At-211 5.E-01
Rn-222 4.E-02
Ra-223 1.E-01
Ra-224 5.E-02
Ra-225 1.E-01
Ra-226 4.E-02
Ra-228 3.E-02
Ac-225 9.E-02
Ac-227 4.E-02
Ac-228 3.E-02
Th-227 8.E-02
Th-228 4.E-02
Th-229 1.E-02
Th-230 7.E-02
Th-231 1.E+01
Th-232 UNLIMITED
Th-234 2.E+00
Pa-230 1.E-01
Pa-231 6.E-02
Pa-233 4.E-01
U-230 4.E-02
U-232 6.E-02
U-233 7.E-02
U-234 1.E-01
U-235 8.E-05
U-236 2.E-01
U-238 UNLIMITED
U Natural UNLIMITED
U Deplete UNLIMITED
U Enriched 10-20% 8.E-04
U Enriched >20 % 8.E-05
Np-235 1.E+02
Np-236 7.E-03
Np-236 8.E-01
Np-237 7.E-02
Np-239 5.E-01
Pu-236 1.E-01
Pu-237 2.E+00
Pu-238 6.E-02
Pu-239 6.E-02
Pu-240 6.E-02
Pu-241 3.E+00
Pu-242 7.E-02
Pu-244 3.E-04
Am-241 6.E-02
Am-242 3.E-01
Am-243 2.E-01
Am-244 9.E-02
Cm-240 3.E-01
Cm-241 1.E-01
Cm-242 4.E-02
Cm-243 2.E-01
Cm-244 5.E-02
Cm-245 9.E-02
Cm-246 2.E-01
Cm-247 1.E-03
Cm-248 5.E-03
Bk-247 8.E-02
Bk-249 1.E+01
Cf-248 1.E-01
Cf-249 1.E-01
Cf-250 1.E-01
Cf-251 1.E-01
Cf-252 2.E-02
Cf-253 4.E-01
Cf-254 3.E-04
239Pu/9Be 6.E-02
241Am/9Be 6.E-02