[별표 3]

방사성핵종의 상대적 위험도에 따른 분류(제4조제2항 관련)

1군 : 매우 높은 독성
Ac-227 Am-241 Am-243 Cf-249 Cf-250 Cf-252	Cm-242 Cm-243 Cm-244 Cm-245 Cm-246 Np-237	Pa-231 Pb-210 Po-210 Pu-238 Pu-239 Pu-240	Pu-241 Pu-242 Ra-223 Ra-226 Ra-228 Th-227	Th-228 Th-230 U-230 U-232 U-233 U-234
2군 : 높은 독성
Ac-228 Ag-110m At-211 Ba-140 Bi-207 Bi-210 Bk-249 Ca-45 Cd-115m	Ce-144 Cl-36 Co-56 Co-60 Cs-134 Cs-137 Eu-152(13y) Eu-154 Hf-181	I-124 I-125 I-126 I-131 I-133 In-114m Ir-192 Mn-54 Na-22 Pa-230	Pb-212 Ra-224 Ru-106 Sb-124 Sb-125 Sc-46 Sr-89 Sr-90 Ta-182	Tb-160 Te-127m Te-129m Th-234 Tl-204 Tm-170 U-236 Y-91 Zr-95
3군 : 중간 독성
Ar-41 Ag-105 Ag-111 As-73 As-74 As-76 As-77 Au-196 Au-198 Au-199 Ba-131 Be-7 Bi-206 Bi-212 Br-82	C-14 Cu-64 Dy-165 Dy-166 Er-169 Er-171 Eu-152(9.2h) Eu-155 F-18 Fe-52 Fe-55 Fe-59 Ga-67 Gd-153 Gd-159 Hg-197	Ga-72 K-43 Kr-85m Kr-87 La-140 Lu-177 Mn-52 Mo-90 Mn-56 Na-24 Nb-93m Nb-95 Nd-147 Nd-149 Ni-63 Ni-65	Pr-142 Pr-143 Pt-191 Pt-193 Pt-197 Rb-86 Re-183 Re-186 Re-188 Rh-105 Rn-220 Rn-222 Ru-97 Ru-103 S-35 Sb-122	Tc-96 Tc-97 Tc-97m Tc-99 Te-125m Te-127 Te-129 Te-131m Te-132 Th-231 Tl-200 Tl-201 Tl-202 Tm-171 V-48 W-181

3군(계속) : 중간 독성
Ca-47 Cd-109 Cd-115 Ce-141 Ce-143 Cl-38 Co-57 Co-58 Cr-51 Cs-131 Cs-136	Hg-197m Hg-203 Ho-166 I-130 I-132 I-134 I-135 In-115m Ir-190 Ir-194 K-42	Np-239 Os-185 Os-191 Os-193 P-32 Pa-233 Pb-203 Pd-103 Pd-109 Pm-147 Pm-149	Sc-47 Sc-48 Se-75 Si-31 Sm-151 Sn-153 Sn-113 Sn-125 Sr-85 Sr-91	W-185 W-187 Xe-135 Y-87 Y-90 Y-92 Y-93 Yb-175 Zn-65 Zn-69m
4군 : 낮은 독성
Ar-37 Co-58m Cs-134m Cs-135 Ge-71 H-3 I-129	In-111m In-113m Kr-85 Nb-97 Ni-59 O-15 Os-191m	Pt-193m Pt-197m Rb-87 Re-187 Rh-103m Sm-147 Sr-85m	Tc-96m Tc-99m Th-232 Th(천연) U-235 U-238	U(천연) Xe-131m Xe-133 Y-91m Zn-69 Zr-93