RADIATION SAFETY (GENERAL) REGULATIONS 1983 - SCHEDULE 8

[Regulations 15, 30, 31 and 33]

Maximum concentrations of radioactive elements in air and water above natural background

		Table I
*Element (atomic number)*	*Isotope ¹*	Column 1 *Air*	Column 2 *Water*	Column 1 *Air*	Column 2 *Water*
			*(becquerels per cubic metre)*
Actinium (89)	Ac‑227 S	7.4 x 10 ^‑2	2.2 x 10 ⁺⁶	3 x 10 ^‑3		7.4 x 10 ⁺⁴
	I	1.1 x 10 ^‑0	3.3 x 10 ⁺⁸	3.3 x 10 ^‑2		1.1 x 10 ⁺⁷
	Ac‑228 S	3 x 10 ⁺³	1.1 x 10 ⁺⁸	1.1 x 10 ⁺²		3.3 x 10 ⁺⁶
	I	7.4 x 10 ⁺²	1.1 x 10 ⁺⁸	2.2 x 10 ⁺¹		3.3 x 10 ⁺⁶
Americium (95)	Am‑241 S	2.2 x 10 ^‑1	3.7 x 10 ⁺⁶	7.4 x 10 ^‑3		1.5 x 10 ⁺⁵
	I	3.7 x 10 ^‑0	3 x 10 ⁺⁷	1.5 x 10 ^‑1		1.1 x 10 ⁺⁶
	Am‑242m S	2.2 x 10 ^‑1	3.7 x 10 ⁺⁶	7.4 x 10 ^‑3		1.5 x 10 ⁺⁵
	I	1.1 x 10 ⁺¹	1.1 x 10 ⁺⁸	3.3 x 10 ^‑1		3.3 x 10 ⁺⁶
	Am‑242 S	1.5 x 10 ⁺³	1.5 x 10 ⁺⁸	3.7 x 10 ⁺¹		3.7 x 10 ⁺⁶
	I	1.8 x 10 ⁺³	1.5 x 10 ⁺⁸	7.4 x 10 ⁺¹		3.7 x 10 ⁺⁶
	Am‑243 S	2.2 x 10 ^‑1	3.7 x 10 ⁺⁶	7.4 x 10 ^‑3		1.5 x 10 ⁺⁵
	I	3.7 x 10 ^‑0	3 x 10 ⁺⁷	1.5 x 10 ^‑1		1.7 x 10 ⁺⁶
	Am‑244 S	1.5 x 10 ⁺⁵	3.7 x 10 ⁺⁹	3.7 x 10 ⁺³		1.8 x 10 ⁺⁸
	I	7.4 x 10 ⁺⁶	3.7 x 10 ⁺⁹	3 x 10 ⁺⁴		1.8 x 10 ⁺⁸
Antimony (51)	Sb‑122 S	7.4 x 10 ⁺³	3 x 10 ⁺⁷	2.2 x 10 ⁺²		1.1 x 10 ⁺⁶
	I	3.7 x 10 ⁺³	3 x 10 ⁺⁷	1.8 x 10 ⁺²		1.1 x 10 ⁺⁶
	Sb‑124 S	7.4 x 10 ⁺³	2.6 x 10 ⁺⁷	1.8 x 10 ⁺²		7.4 x 10 ⁺⁵
	I	7.4 x 10 ⁺²	2.6 x 10 ⁺⁷	2.6 x 10 ⁺¹		7.4 x 10 ⁺⁵
	Sb‑125 S	1.8 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
	I	1.1 x 10 ⁺³	1.1 x 10 ⁺⁸	3.3 x 10 ⁺¹		3.7 x 10 ⁺⁶
Argon (18)	Ar‑37 Sub ²	2.2 x 10 ⁺⁸	—	3.7 x 10 ⁺⁶		—
	Ar‑41 Sub	7.4 x 10 ⁺⁴	—	1.5 x 10 ⁺³		—
Arsenic (33)	As‑73 S	7.4 x 10 ⁺⁴	3.7 x 10 ⁺⁸	2.6 x 10 ⁺³		1.8 x 10 ⁺⁷
	I	1.5 x 10 ⁺⁴	3.7 x 10 ⁺⁸	3.7 x 10 ⁺²		1.8 x 10 ⁺⁷
	As‑74 S	1.1 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		1.8 x 10 ⁺⁴
	I	3.7 x 10 ⁺³	7.4 x 10 ⁺⁷	1.5 x 10 ⁺²		1.8 x 10 ⁺⁴
	As‑76 S	3.7 x 10 ⁺³	2.2 x 10 ⁺⁷	1.5 x 10 ⁺²		1.8 x 10 ⁺⁵
	I	3.7 x 10 ⁺³	2.2 x 10 ⁺⁷	1.1 x 10 ⁺²		1.8 x 10 ⁺⁵
	As‑77 S	1.8 x 10 ⁺⁴	7.4 x 10 ⁺⁷	7.4 x 10 ⁺²		3 x 10 ⁺⁶
	I	1.5 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		3 x 10 ⁺⁶
Astatine (85)	At‑211 S	2.6 x 10 ⁺²	1.8 x 10 ⁺⁶	7.4 x 10 ^‑0		7.4 x 10 ⁺⁴
	I	1.1 x 10 ⁺³	7.4 x 10 ⁺⁷	3.7 x 10 ⁺¹		2.6 x 10 ⁺⁶
Barium (56)	Ba‑131 S	3.7 x 10 ⁺⁴	1.8 x 10 ⁺⁸	1.5 x 10 ⁺³		7.4 x 10 ⁺⁶
	I	1.5 x 10 ⁺⁴	1.8 x 10 ⁺⁸	3.7 x 10 ⁺²		7.4 x 10 ⁺⁶
	Ba‑140 S	3.7 x 10 ⁺³	3 x 10 ⁺⁷	1.5 x 10 ⁺²		1.1 x 10 ⁺⁶
	I	1.5 x 10 ⁺³	2.6 x 10 ⁺⁷	3.7 x 10 ⁺¹		7.4 x 10 ⁺⁴
Berkelium (97)	Bk‑249 S	3.3 x 10 ⁺¹	7.4 x 10 ⁺⁸	1.1 x 10 ^‑0		2.2 x 10 ⁺⁷
	I	3.7 x 10 ⁺³	7.4 x 10 ⁺⁸	1.5 x 10 ⁺²		2.2 x 10 ⁺⁷
	Bk‑250 S	3.7 x 10 ⁺³	2.2 x 10 ⁺⁸	1.8 x 10 ⁺²		7.4 x 10 ⁺⁶
	I	3.7 x 10 ⁺⁴	2.2 x 10 ⁺⁸	1.5 x 10 ⁺³		7.4 x 10 ⁺⁶
Beryllium(4)	Be‑7 S	2.2 x 10 ⁺⁴	1.8 x 10 ⁺³	7.4 x 10 ⁺³		7.4 x 10 ⁺⁷
	I	3.7 x 10 ⁺⁴	1.8 x 10 ⁺⁹	1.5 x 10 ⁺³		7.4 x 10 ⁺⁷
Bismuth (83)	Bi‑206 S	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	2.2 x 10 ⁺²		1.5 x 10 ⁺⁶
	I	3.7 x 10 ⁺³	3.7 x 10 ⁺⁷	1.8 x 10 ⁺²		1.5 x 10 ⁺⁶
	Bi‑207 S	7.4 x 10 ⁺³	7.4 x 10 ⁺⁷	2.2 x 10 ⁺²		2.2 x 10 ⁺⁶
	I	3.7 x 10 ⁺²	7.4 x 10 ⁺⁷	1.8 x 10 ⁺¹		2.2 x 10 ⁺⁶
	Bi‑210 S	2.2 x 10 ⁺²	3.7 x 10 ⁺⁷	7.4 x 10 ^‑0		1.5 x 10 ⁺⁶
	I	2.2 x 10 ⁺²	3.7 x 10 ⁺⁷	7.4 x 10 ^‑0		1.5 x 10 ⁺⁶
	Bi‑212 S	3.7 x 10 ⁺³	3.7 x 10 ⁺⁷	1.1 x 10 ⁺²		1.5 x 10 ⁺⁷
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	2.6 x 10 ⁺²		1.5 x 10 ⁺⁷
Bromine (35)	Br‑82 S	3.7 x 10 ⁺⁴	3 x 10 ⁺⁸	1.5 x 10 ⁺³		1.1 x 10 ⁺⁷
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	2.2 x 10 ⁺²		1.5 x 10 ⁺⁶
Cadmium (48)	Cd‑109 S	1.8 x 10 ⁺³	1.8 x 10 ⁺⁸	7.4 x 10 ⁺¹		7.4 x 10 ⁺⁶
	I	2.6 x 10 ⁺³	1.8 x 10 ⁺⁸	1.1 x 10 ⁺²		7.4 x 10 ⁺⁶
	Cd‑115m S	1.5 x 10 ⁺³	2.6 x 10 ⁺⁷	3.7 x 10 ⁺¹		1.1 x 10 ⁺⁶
	Cd‑115 S	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	3 x 10 ⁺²		1.1 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	2.2 x 10 ⁺²		1.5 x 10 ⁺⁶
Calcium (20)	Ca‑45 S	1.1 x 10 ⁺³	1.1 x 10 ⁺⁷	3.7 x 10 ⁺¹		3.3 x 10 ⁺⁵
	I	3.7 x 10 ⁺³	1.8 x 10 ⁺⁸	1.5 x 10 ⁺²		7.4 x 10 ⁺⁶
	Ca‑47 S	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	2.2 x 10 ⁺²		1.8 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	2.2 x 10 ⁺²		1.1 x 10 ⁺⁶
Californium (98)	Cf‑249 S	7.4 x 10 ^‑2	3.7 x 10 ⁺⁶	1.8 x 10 ^‑3		1.5 x 10 ⁺⁵
	I	3.7 x 10 ^‑0	3.7 x 10 ⁺⁷	1.1 x 10 ^‑1		7.4 x 10 ⁺⁵
	Cf‑250 S	1.8 x 10 ^‑1	1.5 x 10 ⁺⁷	7.4 x 10 ^‑3		3.7 x 10 ⁺⁵
	I	3.7 x 10 ^‑0	2.6 x 10 ⁺⁷	1.1 x 10 ^‑1		1.1 x 10 ⁺⁶
	Cf‑251 S	7.4 x 10 ^‑2	3.7 x 10 ⁺⁶	2.2 x 10 ^‑3		1.5 x 10 ⁺⁵
	I	3.7 x 10 ^‑0	3 x 10 ⁺⁷	1.1 x 10 ^‑1		1.1 x 10 ⁺⁶
	Cf‑252 S	2.2 x 10 ^‑1	7.4 x 10 ⁺⁶	7.4 x 10 ^‑3		2.6 x 10 ⁺⁵
	I	1.1 x 10 ^‑0	7.4 x 10 ⁺⁶	3.7 x 10 ^‑2		2.6 x 10 ⁺⁵
	Cf‑253 S	3 x 10 ⁺¹	1.5 x 10 ⁺⁸	1.1 x 10 ^‑0		3.7 x 10 ⁺⁶
	I	3 x 10 ⁺¹	1.5 x 10 ⁺⁸	1.1 x 10 ^‑0		3.7 x 10 ⁺⁶
	Cf‑254 S	1.8 x 10 ^‑1	1.5 x 10 ⁺⁵	7.4 x 10 ^‑3		3.7 x 10 ⁺³
	I	1.8 x 10 ^‑1	1.5 x 10 ⁺⁵	7.4 x 10 ^‑3		3.7 x 10 ⁺³
Carbon (6)	C‑14 S	1.5 x 10 ⁺⁵	7.4 x 10 ⁺⁸	3.7 x 10 ⁺³		3 x 10 ⁺⁷
	(CO ₂) Sub ²	1.8 x 10 ⁺⁶	—	3.7 x 10 ⁺⁴		—
Cerium (58)	Ce‑141 S	1.5 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.3 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	1.1 x 10 ⁺⁸	1.8 x 10 ⁺²		3.3 x 10 ⁺⁶
	Ce‑143 S	1.1 x 10 ⁺⁴	3.7 x 10 ⁺⁷	3.3 x 10 ⁺²		1.5 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	2.6 x 10 ⁺²		1.5 x 10 ⁺⁶
	Ce‑144 S	3.7 x 10 ⁺²	1.1 x 10 ⁺⁷	1.1 x 10 ⁺¹		3.7 x 10 ⁺⁵
	I	2.2 x 10 ⁺²	1.1 x 10 ⁺⁷	7.4 x 10 ^‑0		3.7 x 10 ⁺⁵
Caesium (55)	Cs‑131 S	3.7 x 10 ⁺⁵	2.6 x 10 ⁺⁹	1.5 x 10 ⁺⁴		7.4 x 10 ⁺⁷
	I	1.1 x 10 ⁺⁵	1.1 x 10 ⁺⁹	3.7 x 10 ⁺³		3.3 x 10 ⁺⁷
	Cs‑134m S	1.5 x 10 ⁺⁶	7.4 x 10 ⁺⁹	3.7 x 10 ⁺⁴		2.2 x 10 ⁺⁸
	I	2.2 x 10 ⁺⁵	1.1 x 10 ⁺⁹	7.4 x 10 ⁺³		3.7 x 10 ⁺⁷
	Cs‑134 S	1.5 x 10 ⁺³	1.1 x 10 ⁺⁷	3.7 x 10 ⁺¹		3.3 x 10 ⁺⁵
	I	3.7 x 10 ⁺²	3.7 x 10 ⁺⁷	1.5 x 10 ⁺¹		1.5 x 10 ⁺⁶
	Cs‑135 S	1.8 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁷
	I	3.3 x 10 ⁺³	2.6 x 10 ⁺⁸	1.1 x 10 ⁺²		7.4 x 10 ⁺⁶
	Cs‑136 S	1.5 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		3.3 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	7.4 x 10 ⁺⁷	2.2 x 10 ⁺²		2.2 x 10 ⁺⁶
	Cs‑137 S	2.2 x 10 ⁺³	1.5 x 10 ⁺⁷	7.4 x 10 ⁺¹		7.4 x 10 ⁺⁵
	I	3.7 x 10 ⁺²	3.7 x 10 ⁺⁷	1.8 x 10 ⁺¹		1.5 x 10 ⁺⁶
Chlorine (17)	Cl‑36 S	1.5 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		3 x 10 ⁺⁶
	I	7.4 x 10 ⁺²	7.4 x 10 ⁺⁷	3 x 10 ⁺¹		2.2 x 10 ⁺⁶
	Cl‑38 S	1.1 x 10 ⁺⁵	3.7 x 10 ⁺⁸	3.3 x 10 ⁺³		1.5 x 10 ⁺⁷
	I	7.4 x 10 ⁺⁴	3.7 x 10 ⁺⁸	2.6 x 10 ⁺³		1.5 x 10 ⁺⁷
Chromium (24)	Cr‑51 S	3.7 x 10 ⁺⁵	1.8 x 10 ⁺⁹	1.5 x 10 ⁺⁴		7.4 x 10 ⁺⁷
	I	7.4 x 10 ⁺⁴	1.8 x 10 ⁺⁹	3 x 10 ⁺³		7.4 x 10 ⁺⁷
Cobalt (27)	Co‑57 S	1.1 x 10 ⁺⁵	7.4 x 10 ⁺⁸	3.7 x 10 ⁺³		1.8 x 10 ⁺⁷
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁸	2.2 x 10 ⁺²		1.5 x 10 ⁺⁷
	Co‑58m S	7.4 x 10 ⁺⁵	3 x 10 ⁺⁹	2.2 x 10 ⁺⁴		1.1 x 10 ⁺⁸
	I	3.3 x 10 ⁺⁵	2.2 x 10 ⁺⁹	1.1 x 10 ⁺⁴		7.4 x 10 ⁺⁷
	Co‑58 S	3 x 10 ⁺⁴	1.5 x 10 ⁺⁸	1.1 x 10 ⁺³		3.7 x 10 ⁺⁶
	I	1.8 x 10 ⁺³	1.1 x 10 ⁺⁸	7.4 x 10 ⁺¹		3.3 x 10 ⁺⁶
	Co‑60 S	1.1 x 10 ⁺⁴	3.7 x 10 ⁺⁷	3.7 x 10 ⁺²		1.8 x 10 ⁺⁶
	I	3.3 x 10 ⁺²	3.7 x 10 ⁺⁷	1.1 x 10 ⁺¹		1.1 x 10 ⁺⁶
Copper (29)	Cu‑64 S	7.4 x 10 ⁺⁴	3.7 x 10 ⁺⁸	2.6 x 10 ⁺³		1.1 x 10 ⁺⁷
	I	3.7 x 10 ⁺⁴	2.2 x 10 ⁺⁸	1.5 x 10 ⁺³		7.4 x 10 ⁺⁶
Curium (96)	Cm‑242 S	3.7 x 10 ^‑0	2.6 x 10 ⁺⁷	1.5 x 10 ^‑1		7.4 x 10 ⁺⁵
	I	7.4 x 10 ^‑0	2.6 x 10 ⁺⁷	2.2 x 10 ^‑1		7.4 x 10 ⁺⁵
	Cm‑243 S	2.2 x 10 ^‑1	3.7 x 10 ⁺⁶	7.4 x 10 ^‑3		1.8 x 10 ⁺⁵
	I	3.7 x 10 ^‑0	2.6 x 10 ⁺⁷	1.1 x 10 ^‑1		7.4 x 10 ⁺⁵
	Cm‑244 S	3.3 x 10 ^‑1	7.4 x 10 ⁺⁶	1.1 x 10 ^‑2		2.6 x 10 ⁺⁵
	I	3.7 x 10 ^‑0	3 x 10 ⁺⁷	1.1 x 10 ^‑1		1.1 x 10 ⁺⁶
	Cm‑245 S	1.8 x 10 ^‑1	3.7 x 10 ⁺⁶	7.4 x 10 ^‑3		1.5 x 10 ⁺⁵
	I	3.7 x 10 ^‑0	3 x 10 ⁺⁷	1.5 x 10 ^‑1		1.1 x 10 ⁺⁶
	Cm‑246 S	1.8 x 10 ^‑1	3.7 x 10 ⁺⁶	7.4 x 10 ^‑3		1.5 x 10 ⁺⁵
	I	3.7 x 10 ^‑0	3 x 10 ⁺⁷	1.5 x 10 ^‑1		1.1 x 10 ⁺⁶
	Cm‑247 S	1.8 x 10 ^‑1	3.7 x 10 ⁺⁶	7.4 x 10 ^‑3		1.5 x 10 ⁺⁵
	I	3.7 x 10 ^‑0	2.2 x 10 ⁺⁷	1.5 x 10 ^‑1		7.4 x 10 ⁺⁵
	Cm‑248 S	2.2 x 10 ^‑2	3.7 x 10 ⁺⁵	7.4 x 10 ^‑4		1.5 x 10 ⁺⁴
	I	3.7 x 10 ^‑1	1.5 x 10 ⁺⁶	1.5 x 10 ^‑2		3.7 x 10 ⁺⁴
	Cm‑249 S	3.7 x 10 ⁺⁵	2.2 x 10 ⁺⁹	1.5 x 10 ⁺⁴		7.4 x 10 ⁺⁷
	I	3.7 x 10 ⁺⁵	2.2 x 10 ⁺⁹	1.5 x 10 ⁺⁴		7.4 x 10 ⁺⁷
Dysprosium (66)	Dy‑165 S	1.1 x 10 ⁺⁵	3.7 x 10 ⁺⁸	3.3 x 10 ⁺³		1.5 x 10 ⁺⁷
	I	7.4 x 10 ⁺⁴	3.7 x 10 ⁺⁸	2.6 x 10 ⁺³		1.5 x 10 ⁺⁷
	Dy‑166 S	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	3 x 10 ⁺²		1.5 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	2.6 x 10 ⁺²		1.5 x 10 ⁺⁶
Einsteinium (99)	Es‑253 S	3 x 10 ⁺¹	2.6 x 10 ⁺⁷	1.1 x 10 ^‑0		7.4 x 10 ⁺⁵
	I	2.2 x 10 ⁺¹	2.6 x 10 ⁺⁷	7.4 x 10 ^‑1		7.4 x 10 ⁺⁵
	Es‑254m S	1.8 x 10 ⁺²	1.8 x 10 ⁺⁷	7.4 x 10 ^‑0		7.4 x 10 ⁺⁵
	I	2.2 x 10 ⁺²	1.8 x 10 ⁺⁷	7.4 x 10 ^‑0		7.4 x 10 ⁺⁵
	Es‑254 S	7.4 x 10 ^‑1	1.5 x 10 ⁺⁷	2.2 x 10 ^‑2		3.7 x 10 ⁺⁵
	I	3.7 x 10 ^‑0	1.5 x 10 ⁺⁷	1.5 x 10 ^‑1		3.7 x 10 ⁺⁵
	Es‑255 S	1.8 x 10 ⁺¹	3 x 10 ⁺⁷	7.4 x 10 ^‑1		1.1 x 10 ⁺⁶
	I	1.5 x 10 ⁺¹	3 x 10 ⁺⁷	3.7 x 10 ^‑1		1.1 x 10 ⁺⁶
Erbium (68)	Er‑169 S	2.2 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.3 x 10 ⁺⁶
	Er‑169 I	1.5 x 10 ⁺⁴	1.1 x 10 ⁺⁸	3.7 x 10 ⁺²		3.3 x 10 ⁺⁶
	Er‑171 S	2.6 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
	I	2.2 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
Europium (63)	Eu‑152 S	1.5 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		2.2 x 10 ⁺⁶
	(T _r=9.2hrs.) I	1.1 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		2.2 x 10 ⁺⁶
	Eu‑152 S	3.7 x 10 ⁺²	7.4 x 10 ⁺⁷	1.5 x 10 ⁺¹		3 x 10 ⁺⁶
	(T ^r= 13 yrs.) I	7.4 x 10 ⁺²	7.4 x 10 ⁺⁷	2.2 x 10 ⁺¹		3 x 10 ⁺⁶
	Eu‑154 S	1.5 x 10 ⁺²	2.2 x 10 ⁺⁷	3.7 x 10 ^‑0		7.4 x 10 ⁺⁵
	I	2.6 x 10 ⁺²	2.2 x 10 ⁺⁷	7.4 x 10 ^‑0		7.4 x 10 ⁺⁵
	Eu‑155 S	3.3 x 10 ⁺³	2.2 x 10 ⁺⁸	1.1 x 10 ⁺²		7.4 x 10 ⁺⁶
	I	2.6 x 10 ⁺³	2.2 x 10 ⁺⁸	1.1 x 10 ⁺²		7.4 x 10 ⁺⁶
Fermium (100)	Fm‑254 S	2.2 x 10 ⁺³	1.5 x 10 ⁺⁸	7.4 x 10 ⁺¹		3.7 x 10 ⁺⁶
	I	2.6 x 10 ⁺³	1.5 x 10 ⁺⁸	7.4 x 10 ⁺¹		3.7 x 10 ⁺⁶
	Fm‑255 S	7.4 x 10 ⁺²	3.7 x 10 ⁺⁷	2.2 x 10 ⁺¹		1.1 x 10 ⁺⁶
	I	3.7 x 10 ⁺²	3.7 x 10 ⁺⁷	1.5 x 10 ⁺¹		1.1 x 10 ⁺⁶
	Fm‑256 S	1.1 x 10 ⁺²	1.1 x 10 ⁺⁶	3.7 x 10 ^‑0		3.3 x 10 ⁺⁴
	I	7.4 x 10 ⁺¹	1.1 x 10 ⁺⁶	2.2 x 10 ^‑0		3.3 x 10 ⁺⁴
Fluorine (9)	F‑18 S	1.8 x 10 ⁺⁵	7.4 x 10 ⁺⁸	7.4 x 10 ⁺³		3 x 10 ⁺⁷
	I	1.1 x 10 ⁺⁵	3.7 x 10 ⁺⁸	3.3 x 10 ⁺³		1.8 x 10 ⁺⁷
Gadolinium (64)	Gd‑153 S	7.4 x 10 ⁺³	2.2 x 10 ⁺⁸	3 x 10 ⁺²		7.4 x 10 ⁺⁶
	I	3.3 x 10 ⁺³	2.2 x 10 ⁺⁸	1.1 x 10 ⁺²		7.4 x 10 ⁺⁶
	Gd‑159 S	1.8 x 10 ⁺⁴	2.2 x 10 ⁺⁷	7.4 x 10 ⁺²		3 x 10 ⁺⁶
	I	1.5 x 10 ⁺⁴	2.2 x 10 ⁺⁷	3.7 x 10 ⁺²		3 x 10 ⁺⁶
Gallium (31)	Ga‑72 S	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	3 x 10 ⁺²		1.5 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	2.2 x 10 ⁺²		1.5 x 10 ⁺⁶
Germanium (32)	Ge‑71 S	3.7 x 10 ⁺⁵	1.8 x 10 ⁺⁹	1.5 x 10 ⁺⁴		7.4 x 10 ⁺⁷
	I	2.2 x 10 ⁺⁵	1.8 x 10 ⁺⁹	7.4 x 10 ⁺³		7.4 x 10 ⁺⁷
Gold (79)	Au‑196 S	3.7 x 10 ⁺⁴	1.8 x 10 ⁺⁸	1.5 x 10 ⁺³		7.4 x 10 ⁺⁶
	I	2.2 x 10 ⁺⁴	1.5 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
	Au‑198 S	1.1 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		1.8 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	3 x 10 ⁺²		1.8 x 10 ⁺⁶
	Au‑199 S	3.7 x 10 ⁺⁴	1.8 x 10 ⁺⁸	1.5 x 10 ⁺³		7.4 x 10 ⁺⁶
	I	3 x 10 ⁺⁴	1.5 x 10 ⁺⁸	1.1 x 10 ⁺³		7.4 x 10 ⁺⁶
Hafnium (72)	Hf‑181 S	1.5 x 10 ⁺³	7.4 x 10 ⁺⁷	3.7 x 10 ⁺¹		2.6 x 10 ⁺⁶
	I	2.6 x 10 ⁺³	7.4 x 10 ⁺⁷	1.1 x 10 ⁺²		2.6 x 10 ⁺⁶
Holmium (67)	Ho‑166 S	7.4 x 10 ⁺³	3.3 x 10 ⁺⁷	2.6 x 10 ⁺²		1.1 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	3.3 x 10 ⁺⁷	2.2 x 10 ⁺²		1.1 x 10 ⁺⁶
Hydrogen (1)	H‑3 S	1.8 x 10 ⁺⁵	3.7 x 10 ⁺⁹	7.4 x 10 ⁺³		1.1 x 10 ⁺⁸
	I	1.8 x 10 ⁺⁵	3.7 x 10 ⁺⁹	7.4 x 10 ⁺³		1.1 x 10 ⁺⁸
	Sub ²	7.4 x 10 ⁺⁷	—	1.5 x 10 ⁺⁶		—
Indium (49)	In‑113m S	3 x 10 ⁺⁵	1.5 x 10 ⁺⁹	1.1 x 10 ⁺⁴		3.7 x 10 ⁺⁷
	I	2.6 x 10 ⁺⁵	1.5 x 10 ⁺⁹	7.4 x 10 ⁺³		3.7 x 10 ⁺⁷
	In‑114m S	3.7 x 10 ⁺³	1.8 x 10 ⁺⁷	1.5 x 10 ⁺²		7.4 x 10 ⁺⁵
	I	7.4 x 10 ⁺²	1.8 x 10 ⁺⁷	2.6 x 10 ⁺¹		7.4 x 10 ⁺⁵
	In‑115m S	7.4 x 10 ⁺⁴	3.7 x 10 ⁺⁸	3 x 10 ⁺³		1.5 x 10 ⁺⁷
	I	7.4 x 10 ⁺⁴	3.7 x 10 ⁺⁸	2.2 x 10 ⁺³		1.5 x 10 ⁺⁷
	In‑115 S	7.4 x 10 ⁺³	1.1 x 10 ⁺⁸	3.3 x 10 ⁺²		3.3 x 10 ⁺⁶
	I	1.1 x 10 ⁺³	1.1 x 10 ⁺⁸	3.7 x 10 ⁺¹		3.3 x 10 ⁺⁶
Iodine (53)	I‑125 S	1.8 x 10 ⁺²	1.5 x 10 ⁺⁶	3 x 10 ^‑0		7.4 x 10 ⁺³
	I	7.4 x 10 ⁺³	2.2 x 10 ⁺⁸	2.2 x 10 ⁺²		7.4 x 10 ⁺⁶
	I‑126 S	3 x 10 ⁺²	1.8 x 10 ⁺⁶	3.3 x 10 ^‑0		1.1 x 10 ⁺⁴
	I	1.1 x 10 ⁺⁴	1.1 x 10 ⁺⁸	3.7 x 10 ⁺²		3.3 x 10 ⁺⁶
	I‑129 S	7.4 x 10 ⁺²	3.7 x 10 ⁺⁵	7.4 x 10 ^‑1		2.2 x 10 ⁺³
	I	2.6 x 10 ⁺³	2.2 x 10 ⁺⁸	7.4 x 10 ⁺¹		7.4 x 10 ⁺⁶
	I‑131 S	3.3 x 10 ⁺²	2.2 x 10 ⁺⁶	3.7 x 10 ^‑0		1.1 x 10 ⁺⁴
	I	1.1 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		2.2 x 10 ⁺⁶
	I‑132 S	7.4 x 10 ⁺³	7.4 x 10 ⁺⁷	1.1 x 10 ⁺²		3 x 10 ⁺⁵
	I	3.3 x 10 ⁺⁴	1.8 x 10 ⁺⁸	1.1 x 10 ⁺³		7.4 x 10 ⁺⁶
	I‑133 S	1.1 x 10 ⁺³	7.4 x 10 ⁺⁶	1.5 x 10 ⁺¹		3.7 x 10 ⁺⁴
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	2.6 x 10 ⁺²		1.5 x 10 ⁺⁶
	I‑134 S	1.8 x 10 ⁺⁴	1.5 x 10 ⁺⁸	2.2 x 10 ⁺²		7.4 x 10 ⁺⁵
	I	1.1 x 10 ⁺⁵	7.4 x 10 ⁺⁸	3.7 x 10 ⁺³		2.2 x 10 ⁺⁷
	I‑135 S	3.7 x 10 ⁺³	2.6 x 10 ⁺⁷	3.7 x 10 ⁺¹		1.5 x 10 ⁺⁵
	I	1.5 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		2.6 x 10 ⁺⁶
Iridium (77)	Ir‑190 S	3.7 x 10 ⁺⁴	2.2 x 10 ⁺⁸	1.5 x 10 ⁺³		7.4 x 10 ⁺⁶
	I	1.5 x 10 ⁺⁴	1.8 x 10 ⁺⁸	3.7 x 10 ⁺²		7.4 x 10 ⁺⁶
	Ir‑192 S	3.7 x 10 ⁺³	3.7 x 10 ⁺⁷	1.5 x 10 ⁺²		1.5 x 10 ⁺⁶
	I	1.1 x 10 ⁺³	3.7 x 10 ⁺⁷	3.3 x 10 ⁺¹		1.5 x 10 ⁺⁶
	Ir‑194 S	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	3 x 10 ⁺²		1.1 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	3.3 x 10 ⁺⁷	1.8 x 10 ⁺²		1.1 x 10 ⁺⁶
Iron (26)	Fe‑55 S	3.3 x 10 ⁺⁴	7.4 x 10 ⁺⁸	1.1 x 10 ⁺³		3 x 10 ⁺⁷
	I	3.7 x 10 ⁺⁴	2.6 x 10 ⁺⁹	1.1 x 10 ⁺³		7.4 x 10 ⁺⁷
	Fe‑59 S	3.7 x 10 ⁺³	7.4 x 10 ⁺⁷	1.8 x 10 ⁺²		2.2 x 10 ⁺⁶
	I	1.8 x 10 ⁺³	7.4 x 10 ⁺⁷	7.4 x 10 ⁺²		1.8 x 10 ⁺⁶
Krypton (36)	Kr‑95m Sub ²	2.2 x 10 ⁺⁵	—	3.7 x 10 ⁺³		—
	Kr‑85 Sub	3.7 x 10 ⁺⁵	—	1.1 x 10 ⁺⁴		—
	Kr‑87 Sub	3.7 x 10 ⁺⁴	—	7.4 x 10 ⁺²		—
	Kr‑88 Sub	3.7 x 10 ⁺⁴	—	7.4 x 10 ⁺²		—
Lanthanum (57)	La‑140 S	7.4 x 10 ⁺³	2.6 x 10 ⁺⁷	1.8 x 10 ⁺²		7.4 x 10 ⁺⁵
	I	3.7 x 10 ⁺³	2.6 x 10 ⁺⁷	1.5 x 10 ⁺²		7.4 x 10 ⁺⁵
Lead (82)	Pb‑203 S	1.1 x 10 ⁺⁵	3.7 x 10 ⁺⁸	3.3 x 10 ⁺³		1.5 x 10 ⁺⁷
	I	7.4 x 10 ⁺⁴	3.7 x 10 ⁺⁸	2.2 x 10 ⁺³		1.5 x 10 ⁺⁷
	Pb‑210 S	3.7 x 10 ^‑0	1.5 x 10 ⁺⁵	1.5 x 10 ^‑1		3.7 x 10 ⁺³
	I	7.4 x 10 ^‑0	1.8 x 10 ⁺⁸	3 x 10 ^‑1		7.4 x 10 ⁺⁶
	Pb‑212 S	7.4 x 10 ⁺²	2.2 x 10 ⁺⁷	2.2 x 10 ⁺¹		7.4 x 10 ⁺⁵
	I	7.4 x 10 ⁺²	1.8 x 10 ⁺⁷	2.6 x 10 ⁺¹		7.4 x 10 ⁺⁵
Lutetium (71)	Lu‑177 S	2.2 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
	I	1.8 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
Manganese (25)	Mn‑52 S	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	2.6 x 10 ⁺²		1.1 x 10 ⁺⁶
	I	3.7 x 10 ⁺³	3.3 x 10 ⁺⁷	1.8 x 10 ⁺²		1.1 x 10 ⁺⁶
	Mn‑54 S	1.5 x 10 ⁺⁴	1.5 x 10 ⁺⁸	3.7 x 10 ⁺²		3.7 x 10 ⁺⁶
	I	1.5 x 10 ⁺³	1.1 x 10 ⁺⁸	3.7 x 10 ⁺¹		3.7 x 10 ⁺⁶
	Mn‑56 S	3 x 10 ⁺⁴	1.5 x 10 ⁺⁸	1.1 x 10 ⁺³		3.7 x 10 ⁺⁶
	I	1.8 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
Mercury (80)	Hg‑197m S	2.6 x 10 ⁺⁴	1.8 x 10 ⁺⁸	1.1 x 10 ⁺³		7.4 x 10 ⁺⁶
	I	3 x 10 ⁺⁴	1.5 x 10 ⁺⁸	1.1 x 10 ⁺³		7.4 x 10 ⁺⁶
	Hg‑197 S	3.7 x 10 ⁺⁴	3.3 x 10 ⁺⁸	1.5 x 10 ⁺³		1.1 x 10 ⁺⁷
	I	1.1 x 10 ⁺⁵	3.7 x 10 ⁺⁸	3.3 x 10 ⁺³		1.8 x 10 ⁺⁷
	Hg‑203 S	2.6 x 10 ⁺³	1.8 x 10 ⁺⁷	7.4 x 10 ⁺¹		7.4 x 10 ⁺⁵
	I	3.7 x 10 ⁺³	1.1 x 10 ⁺⁸	1.5 x 10 ⁺²		3.7 x 10 ⁺⁶
Molybdenum (42)	Mr‑99 S	2.6 x 10 ⁺⁴	1.8 x 10 ⁺⁸	1.1 x 10 ⁺³		7.4 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	2.6 x 10 ⁺²		1.5 x 10 ⁺⁶
Neodymium (60)	Nd‑144 S	3 x 10 ^‑0	7.4 x 10 ⁺⁷	1.1 x 10 ^‑1		2.6 x 10 ⁺⁶
	I	1.1 x 10 ⁺¹	7.4 x 10 ⁺⁷	3.7 x 10 ^‑1		3 x 10 ⁺⁶
	Nd‑147 S	1.5 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		2.2 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	7.4 x 10 ⁺⁷	3 x 10 ⁺²		2.2 x 10 ⁺⁶
	Nd‑149 S	7.4 x 10 ⁺⁴	3 x 10 ⁺⁸	2.2 x 10 ⁺³		1.1 x 10 ⁺⁷
	I	3.7 x 10 ⁺⁴	3 x 10 ⁺⁸	1.8 x 10 ⁺³		1.1 x 10 ⁺⁷
Neptunium (93)	Np‑237 S	1.5 x 10 ^‑1	3.3 x 10 ⁺⁶	3.7 x 10 ^‑3		1.1 x 10 ⁺⁵
	I	3.7 x 10 ^‑0	3.3 x 10 ⁺⁷	1.5 x 10 ^‑1		1.1 x 10 ⁺⁶
	Np‑239 S	3 x 10 ⁺⁴	1.5 x 10 ⁺⁸	1.1 x 10 ⁺³		3.7 x 10 ⁺⁶
	I	2.6 x 10 ⁺⁴	1.5 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
Nickel (28)	Ni‑59 S	1.8 x 10 ⁺⁴	2.2 x 10 ⁺⁸	7.4 x 10 ⁺²		7.4 x 10 ⁺⁶
	I	3 x 10 ⁺⁴	2.2 x 10 ⁺⁹	1.1 x 10 ⁺³		7.4 x 10 ⁺⁷
	Ni‑63 S	2.2 x 10 ⁺³	3 x 10 ⁺⁷	7.4 x 10 ⁺¹		1.1 x 10 ⁺⁶
	I	1.1 x 10 ⁺⁴	7.4 x 10 ⁺⁸	3.7 x 10 ⁺²		2.6 x 10 ⁺⁷
	Ni‑65 S	3.3 x 10 ⁺⁴	1.5 x 10 ⁺⁸	1.1 x 10 ⁺³		3.7 x 10 ⁺⁶
	I	1.8 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
Niobium (41)	Nb‑93m S	3.7 x 10 ⁺³	3.7 x 10 ⁺⁸	1.5 x 10 ⁺²		1.5 x 10 ⁺⁷
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁸	1.8 x 10 ⁺²		1.5 x 10 ⁺⁷
	Nb‑95 S	1.8 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
	I	3.7 x 10 ⁺³	1.1 x 10 ⁺⁸	1.1 x 10 ⁺²		3.7 x 10 ⁺⁶
	Nb‑97 S	2.2 x 10 ⁺⁵	1.1 x 10 ⁺⁹	7.4 x 10 ⁺³		3.3 x 10 ⁺⁷
	I	1.8 x 10 ⁺⁵	1.1 x 10 ⁺⁹	7.4 x 10 ⁺³		3.3 x 10 ⁺⁷
Osmium (76)	Os‑185 S	1.8 x 10 ⁺⁴	7.4 x 10 ⁺⁷	7.4 x 10 ⁺²		2.6 x 10 ⁺⁶
	I	1.8 x 10 ⁺³	7.4 x 10 ⁺⁷	7.4 x 10 ⁺¹		2.6 x 10 ⁺⁶
	Os‑191m S	7.4 x 10 ⁺⁵	2.6 x 10 ⁺⁹	2.2 x 10 ⁺⁴		1.1 x 10 ⁺⁸
	I	3.3 x 10 ⁺⁵	2.6 x 10 ⁺⁹	1.1 x 10 ⁺⁴		7.4 x 10 ⁺⁷
	Os‑191 S	3.7 x 10 ⁺⁴	1.8 x 10 ⁺⁸	1.5 x 10 ⁺³		7.4 x 10 ⁺⁶
	I	1.5 x 10 ⁺⁴	1.8 x 10 ⁺⁸	3.7 x 10 ⁺²		7.4 x 10 ⁺⁶
	Os‑193 S	1.5 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		2.2 x 10 ⁺⁶
	I	1.1 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.3 x 10 ⁺²		1.8 x 10 ⁺⁶
Palladium (46)	Pd‑103 S	3.7 x 10 ⁺⁴	3.7 x 10 ⁺⁸	1.8 x 10 ⁺³		1.1 x 10 ⁺⁷
	I	2.6 x 10 ⁺⁴	3 x 10 ⁺⁸	1.1 x 10 ⁺³		1.1 x 10 ⁺⁷
	Pd‑109 S	2.2 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.3 x 10 ⁺⁶
	I	1.5 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		2.6 x 10 ⁺⁶
Phosphorus (15)	P‑32 S	2.6 x 10 ⁺³	1.8 x 10 ⁺⁷	7.4 x 10 ⁺¹		7.4 x 10 ⁺⁵
	I	3 x 10 ⁺³	2.6 x 10 ⁺⁷	1.1 x 10 ⁺²		7.4 x 10 ⁺⁵
Platinum (78)	Pt‑191 S	3 x 10 ⁺⁴	1.5 x 10 ⁺⁸	1.1 x 10 ⁺³		3.7 x 10 ⁺⁶
	I	2.2 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
	Pt‑193m S	2.6 x 10 ⁺⁵	1.1 x 10 ⁺⁹	7.4 x 10 ⁺³		3.7 x 10 ⁺⁷
	I	1.8 x 10 ⁺⁵	1.1 x 10 ⁺⁹	7.4 x 10 ⁺³		3.7 x 10 ⁺⁷
	Pt‑193 S	3.7 x 10 ⁺⁴	1.1 x 10 ⁺⁹	1.5 x 10 ⁺³		3.3 x 10 ⁺⁷
	I	1.1 x 10 ⁺⁴	1.8 x 10 ⁺⁹	3.7 x 10 ⁺²		7.4 x 10 ⁺⁷
	Pt‑197m S	2.2 x 10 ⁺⁵	1.1 x 10 ⁺⁹	7.4 x 10 ⁺³		3.7 x 10 ⁺⁷
	I	1.8 x 10 ⁺⁵	1.1 x 10 ⁺⁹	7.4 x 10 ⁺³		3.3 x 10 ⁺⁷
	Pt‑197 S	3 x 10 ⁺⁴	1.5 x 10 ⁺⁸	1.1 x 10 ⁺³		3.7 x 10 ⁺⁶
	I	2.2 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
Plutonium (94)	Pu‑238 S	7.4 x 10 ^‑1	3.7 x 10 ⁺⁶	2.6 x 10 ^‑3		1.8 x 10 ⁺⁵
	I	1.1 x 10 ^‑0	3 x 10 ⁺⁷	3.7 x 10 ^‑2		1.1 x 10 ⁺⁶
	Pu‑239 S	7.4 x 10 ^‑2	3.7 x 10 ⁺⁶	2.2 x 10 ^‑3		1.8 x 10 ⁺⁵
	I	1.5 x 10 ^‑0	3 x 10 ⁺⁷	3.7 x 10 ^‑2		1.1 x 10 ⁺⁶
	Pu‑240 S	7.4 x 10 ^‑2	3.7 x 10 ⁺⁶	2.2 x 10 ^‑3		1.8 x 10 ⁺⁵
	I	1.5 x 10 ^‑0	3 x 10 ⁺⁷	3.7 x 10 ^‑2		1.1 x 10 ⁺⁶
	Pu‑241 S	3.3 x 10 ^‑0	2.6 x 10 ⁺⁸	1.1 x 10 ^‑1		7.4 x 10 ⁺⁶
	I	1.5 x 10 ⁺³	1.5 x 10 ⁺⁹	3.7 x 10 ⁺¹		3.7 x 10 ⁺⁷
	Pu‑242 S	7.4 x 10 ^‑2	3.7 x 10 ⁺⁶	2.2 x 10 ^‑3		1.8 x 10 ⁺⁵
	I	1.5 x 10 ^‑0	3.3 x 10 ⁺⁷	3.7 x 10 ^‑2		1.1 x 10 ⁺⁶
	Pu‑243 S	7.4 x 10 ⁺⁴	3.7 x 10 ⁺⁸	2.2 x 10 ⁺³		1.1 x 10 ⁺⁷
	I	7.4 x 10 ⁺⁴	3.7 x 10 ⁺⁸	3 x 10 ⁺³		1.1 x 10 ⁺⁷
	Pu‑244 S	7.4 x 10 ^‑2	3.7 x 10 ⁺⁶	2.2 x 10 ^‑3		1.5 x 10 ⁺⁵
	I	1.1 x 10 ^‑0	1.1 x 10 ⁺⁷	3.7 x 10 ^‑2		3.7 x 10 ⁺⁵
Polonium (84)	Po‑210 S	1.8 x 10 ⁺¹	7.4 x 10 ⁺⁵	7.4 x 10 ^‑1		2.6 x 10 ⁺⁴
	I	7.4 x 10 ^‑0	3 x 10 ⁺⁷	2.6 x 10 ^‑1		1.1 x 10 ⁺⁶
Potassium (19)	K‑42 S	7.4 x 10 ⁺⁴	3.3 x 10 ⁺⁸	2.6 x 10 ⁺³		1.1 x 10 ⁺⁷
	I	3.7 x 10 ⁺³	2.2 x 10 ⁺⁷	1.5 x 10 ⁺²		7.4 x 10 ⁺⁵
Praseodymium (59)	Pr‑142 S	7.4 x 10 ⁺³	3.3 x 10 ⁺⁷	2.6 x 10 ⁺²		1.1 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	3.3 x 10 ⁺⁷	1.8 x 10 ⁺²		1.1 x 10 ⁺⁶
	Pr‑143 S	1.1 x 10 ⁺⁴	3.7 x 10 ⁺⁷	3.7 x 10 ⁺²		1.8 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	2.2 x 10 ⁺²		1.8 x 10 ⁺⁶
Promethium (61)	Pm‑147 S	2.2 x 10 ⁺³	2.2 x 10 ⁺⁸	7.4 x 10 ⁺¹		7.4 x 10 ⁺⁶
	I	3.7 x 10 ⁺³	2.2 x 10 ⁺⁸	1.1 x 10 ⁺²		7.4 x 10 ⁺⁶
	Pm‑149 S	1.1 x 10 ⁺⁴	3.7 x 10 ⁺⁷	3.7 x 10 ⁺²		1.5 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	3 x 10 ⁺²		1.5 x 10 ⁺⁶
Protactinium (91)	Pa‑230 S	7.4 x 10 ⁺¹	2.6 x 10 ⁺⁸	2.2 x 10 ^‑0		7.4 x 10 ⁺⁶
	I	3 x 10 ⁺¹	2.6 x 10 ⁺⁸	1.1 x 10 ^‑0		7.4 x 10 ⁺⁶
	Pa‑231 S	3.7 x 10 ^‑2	1.1 x 10 ⁺⁶	1.5 x 10 ^‑3		3.3 x 10 ⁺⁴
	I	3.7 x 10 ^‑0	3 x 10 ⁺⁷	1.5 x 10 ^‑1		7.4 x 10 ⁺⁵
	Pa‑233 S	2.2 x 10 ⁺⁴	1.5 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	1.1 x 10 ⁺⁸	2.2 x 10 ⁺²		3.7 x 10 ⁺⁶
Radium (88)	Ra‑223 S	7.4 x 10 ⁺¹	7.4 x 10 ⁺⁵	2.2 x 10 ^‑0		2.6 x 10 ⁺⁴
	I	7.4 x 10 ^‑0	3.7 x 10 ⁺⁶	3 x 10 ^‑1		1.5 x 10 ⁺⁵
	Ra‑224 S	1.8 x 10 ⁺²	2.6 x 10 ⁺⁶	7.4 x 10 ^‑0		7.4 x 10 ⁺⁴
	I	2.6 x 10 ⁺¹	7.4 x 10 ⁺⁶	7.4 x 10 ^‑1		1.8 x 10 ⁺⁵
	Ra‑226 S	1.1 x 10 ^‑0	1.5 x 10 ⁺⁴	1.1 x 10 ^‑1		1.1 x 10 ⁺³
	I	1.8 x 10 ^‑0	3.3 x 10 ⁺⁷	7.4 x 10 ^‑2		1.1 x 10 ⁺⁶
	Ra‑228 S	2.6 x 10 ^‑0	3 x 10 ⁺⁴	7.4 x 10 ^‑2		1.1 x 10 ⁺³
	I	1.5 x 10 ^‑0	2.6 x 10 ⁺⁷	3.7 x 10 ^‑2		1.1 x 10 ⁺⁶
Radon (86)	Rn‑220 S	1.1 x 10 ⁺⁴	—	3.7 x 10 ⁺²		—
	Rn‑222 S ³	1.1 x 10 ⁺³	—	1.1 x 10 ⁺²		—
Rhenium (75)	Re‑183 S	1.1 x 10 ⁺⁵	7.4 x 10 ⁺⁸	3.3 x 10 ⁺³		2.2 x 10 ⁺⁷
	I	7.4 x 10 ⁺³	3 x 10 ⁺⁸	1.8 x 10 ⁺²		1.1 x 10 ⁺⁷
	Re‑186 S	2.2 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.3 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	3 x 10 ⁺²		1.8 x 10 ⁺⁶
	Re‑187 S	3.3 x 10 ⁺⁵	2.6 x 10 ⁺⁹	1.1 x 10 ⁺⁴		1.1 x 10 ⁺⁸
	I	1.8 x 10 ⁺⁴	1.5 x 10 ⁺⁹	7.4 x 10 ⁺²		7.4 x 10 ⁺⁷
	Re‑188 S	1.5 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		2.2 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	3.3 x 10 ⁺⁷	2.2 x 10 ⁺²		1.1 x 10 ⁺⁶
Rhodium (45)	Rh‑103m S	3 x 10 ⁺⁶	1.5 x 10 ⁺¹⁰	1.1 x 10 ⁺⁵		3.7 x 10 ⁺⁸
	I	2.2 x 10 ⁺⁶	1.1 x 10 ⁺⁰	7.4 x 10 ⁺⁴		3.7 x 10 ⁺⁸
	Rh‑105 S	3 x 10 ⁺⁴	1.5 x 10 ⁺⁸	1.1 x 10 ⁺³		3.7 x 10 ⁺⁶
	I	1.8 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
Rubidium (37)	Rb‑86 S	1.1 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		2.6 x 10 ⁺⁶
	I	2.6 x 10 ⁺³	2.6 x 10 ⁺⁷	7.4 x 10 ⁺¹		7.4 x 10 ⁺⁵
	Rb‑87 S	1.8 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
	I	2.6 x 10 ⁺³	1.8 x 10 ⁺⁸	7.4 x 10 ⁺¹		7.4 x 10 ⁺⁶
Ruthenium (44)	Ru‑97 S	7.4 x 10 ⁺⁴	3.7 x 10 ⁺⁸	3 x 10 ⁺³		1.5 x 10 ⁺⁷
	I	7.4 x 10 ⁺⁴	3.7 x 10 ⁺⁸	2.2 x 10 ⁺³		1.1 x 10 ⁺⁷
	Ru‑103 S	1.8 x 10 ⁺⁴	7.4 x 10 ⁺⁷	7.4 x 10 ⁺²		3 x 10 ⁺⁶
	I	3 x 10 ⁺³	7.4 x 10 ⁺⁷	1.1 x 10 ⁺²		3 x 10 ⁺⁶
	Ru‑105 S	2.6 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
	I	1.8 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
	Ru‑106 S	3 x 10 ⁺³	1.5 x 10 ⁺⁷	1.1 x 10 ⁺²		3.7 x 10 ⁺⁵
	I	2.2 x 10 ⁺²	1.1 x 10 ⁺⁷	7.4 x 10 ^‑0		3.7 x 10 ⁺⁵
Samarium (62)	Sm‑147 S	2.6 x 10 ^‑0	7.4 x 10 ⁺⁷	7.4 x 10 ^‑2		2.2 x 10 ⁺⁶
	I	1.1 x 10 ⁺¹	7.4 x 10 ⁺⁷	3.3 x 10 ^‑1		2.6 x 10 ⁺⁶
	Sm‑151 S	2.2 x 10 ⁺³	3.7 x 10 ⁺⁸	7.4 x 10 ⁺¹		1.5 x 10 ⁺⁷
	I	3.7 x 10 ⁺³	3.7 x 10 ⁺⁸	1.8 x 10 ⁺²		1.5 x 10 ⁺⁷
	Sm‑153 S	1.8 x 10 ⁺⁴	7.4 x 10 ⁺⁷	7.4 x 10 ⁺²		3 x 10 ⁺⁶
	I	1.5 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		3 x 10 ⁺⁶
Scandium (21)	Sc‑46 S	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	3 x 10 ⁺²		1.5 x 10 ⁺⁶
	I	7.4 x 10 ⁺²	3.7 x 10 ⁺⁷	3 x 10 ⁺¹		1.5 x 10 ⁺⁶
	Sc‑47 S	2.2 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.3 x 10 ⁺⁶
	I	1.8 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.3 x 10 ⁺⁶
	Sc‑48 S	7.4 x 10 ⁺³	3 x 10 ⁺⁷	2.2 x 10 ⁺²		1.1 x 10 ⁺⁶
	I	3.7 x 10 ⁺³	3 x 10 ⁺⁷	1.8 x 10 ⁺²		1.1 x 10 ⁺⁶
Selenium (34)	Se‑75 S	3.7 x 10 ⁺⁴	3.3 x 10 ⁺⁸	1.5 x 10 ⁺³		1.1 x 10 ⁺⁷
	I	3.7 x 10 ⁺³	3 x 10 ⁺⁸	1.5 x 10 ⁺²		1.1 x 10 ⁺⁷
Silicon (14)	Si‑31 S	2.2 x 10 ⁺⁵	1.1 x 10 ⁺⁹	7.4 x 10 ⁺³		3.3 x 10 ⁺⁷
	I	3.7 x 10 ⁺⁴	2.2 x 10 ⁺⁸	1.1 x 10 ⁺³		7.4 x 10 ⁺⁶
Silver (47)	Ag‑105 S	2.2 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.3 x 10 ⁺⁶
	I	3 x 10 ⁺³	1.1 x 10 ⁺⁸	1.1 x 10 ⁺²		3.7 x 10 ⁺⁶
	Ag‑110m S	7.4 x 10 ⁺³	3.3 x 10 ⁺⁷	2.6 x 10 ⁺²		1.1 x 10 ⁺⁶
	I	3.7 x 10 ⁺²	3.3 x 10 ⁺⁷	1.1 x 10 ⁺¹		1.1 x 10 ⁺⁶
	Ag‑111 S	1.1 x 10 ⁺⁴	3.7 x 10 ⁺⁷	3.7 x 10 ⁺²		1.5 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	3 x 10 ⁺²		1.5 x 10 ⁺⁶
Sodium (11)	Na‑22 S	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	2.2 x 10 ⁺²		1.5 x 10 ⁺⁶
	I	3.3 x 10 ⁺²	3.3 x 10 ⁺⁷	1.1 x 10 ⁺¹		1.1 x 10 ⁺⁶
	Na‑24 S	3.7 x 10 ⁺⁴	2.2 x 10 ⁺⁸	1.5 x 10 ⁺³		7.4 x 10 ⁺⁶
	I	3.7 x 10 ⁺³	3 x 10 ⁺⁷	1.8 x 10 ⁺²		1.1 x 10 ⁺⁶
Strontium (38)	Sr‑85m S	1.5 x 10 ⁺⁶	7.4 x 10 ⁺⁹	3.7 x 10 ⁺⁴		2.6 x 10 ⁺⁸
	I	1.1 x 10 ⁺⁶	7.4 x 10 ⁺⁹	3.7 x 10 ⁺⁴		2.6 x 10 ⁺⁸
	Sr‑85 S	7.4 x 10 ⁺³	1.1 x 10 ⁺⁸	3 x 10 ⁺²		3.7 x 10 ⁺⁶
	I	3.7 x 10 ⁺³	1.8 x 10 ⁺⁸	1.5 x 10 ⁺²		7.4 x 10 ⁺⁶
	Sr‑89 S	1.1 x 10 ⁺³	1.1 x 10 ⁺⁷	1.1 x 10 ⁺¹		1.1 x 10 ⁺⁵
	I	1.5 x 10 ⁺³	3 x 10 ⁺⁷	3.7 x 10 ⁺¹		1.1 x 10 ⁺⁵
	Sr‑90 S	3.7 x 10 ⁺¹	3.7 x 10 ⁺⁵	1.1 x 10 ^‑0		1.1 x 10 ⁺⁴
	I	1.8 x 10 ⁺²	3.7 x 10 ⁺⁷	7.4 x 10 ^‑0		1.5 x 10 ⁺⁶
	Sr‑91 S	1.5 x 10 ⁺⁴	7.4 x 10 ⁺⁷	7.4 x 10 ⁺²		2.6 x 10 ⁺⁶
	I	1.1 x 10 ⁺⁴	3.7 x 10 ⁺⁷	3.3 x 10 ⁺²		1.8 x 10 ⁺⁶
	Sr‑92 S	1.5 x 10 ⁺⁴	7.4 x 10 ⁺⁷	7.4 x 10 ⁺²		2.6 x 10 ⁺⁶
	I	1.1 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		2.2 x 10 ⁺⁶
Sulphur (16)	S‑35 S	1.1 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.3 x 10 ⁺²		2.2 x 10 ⁺⁶
	I	1.1 x 10 ⁺⁴	3 x 10 ⁺⁸	3.3 x 10 ⁺²		1.1 x 10 ⁺⁷
Tantalum (73)	Ta‑182 S	1.5 x 10 ⁺³	3.7 x 10 ⁺⁷	3.7 x 10 ⁺¹		1.5 x 10 ⁺⁶
	I	7.4 x 10 ⁺²	3.7 x 10 ⁺⁷	2.6 x 10 ⁺¹		1.5 x 10 ⁺⁶
Technetium (43)	Tc‑96m S	3 x 10 ⁺⁶	1.5 x 10 ⁺¹⁰	1.1 x 10 ⁺⁵		3.7 x 10 ⁺⁸
	I	1.1 x 10 ⁺⁶	1.1 x 10 ⁺¹⁰	3.7 x 10 ⁺⁴		3.7 x 10 ⁺⁸
	Tc‑96 S	2.2 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	3 x 10 ⁺²		1.8 x 10 ⁺⁶
	Tc‑97m S	7.4 x 10 ⁺⁴	3.7 x 10 ⁺⁸	3 x 10 ⁺³		1.5 x 10 ⁺⁷
	I	7.4 x 10 ⁺³	1.8 x 10 ⁺⁸	1.8 x 10 ⁺²		7.4 x 10 ⁺⁶
	Tc‑97 S	3.7 x 10 ⁺⁵	1.8 x 10 ⁺⁹	1.5 x 10 ⁺⁴		7.4 x 10 ⁺⁷
	I	1.1 x 10 ⁺⁴	7.4 x 10 ⁺⁸	3.7 x 10 ⁺²		3 x 10 ⁺⁷
	Tc‑99m S	1.5 x 10 ⁺⁶	7.4 x 10 ⁺⁹	3.7 x 10 ⁺⁴		2.2 x 10 ⁺⁸
	I	3.7 x 10 ⁺⁵	3 x 10 ⁺⁹	1.8 x 10 ⁺⁴		1.1 x 10 ⁺⁸
	Tc‑99 S	7.4 x 10 ⁺⁴	3.7 x 10 ⁺⁸	2.6 x 10 ⁺³		1.1 x 10 ⁺⁷
	I	2.2 x 10 ⁺³	1.8 x 10 ⁺⁸	7.4 x 10 ⁺¹		7.4 x 10 ⁺⁶
Tellurium (52)	Te‑125m S	1.5 x 10 ⁺⁴	1.8 x 10 ⁺⁸	3.7 x 10 ⁺²		7.4 x 10 ⁺⁶
	I	3.7 x 10 ⁺³	1.1 x 10 ⁺⁸	1.5 x 10 ⁺²		3.7 x 10 ⁺⁶
	Te‑127m S	3.7 x 10 ⁺³	7.4 x 10 ⁺⁷	1.8 x 10 ⁺²		2.2 x 10 ⁺⁶
	I	1.5 x 10 ⁺³	7.4 x 10 ⁺⁷	3.7 x 10 ⁺¹		1.8 x 10 ⁺⁶
	Te‑127 S	7.4 x 10 ⁺⁴	3 x 10 ⁺⁸	2.2 x 10 ⁺³		1.1 x 10 ⁺⁷
	I	3.3 x 10 ⁺⁴	1.8 x 10 ⁺⁸	1.1 x 10 ⁺³		7.4 x 10 ⁺⁶
	Te‑129m S	3 x 10 ⁺³	3.7 x 10 ⁺⁷	1.1 x 10 ⁺²		1.1 x 10 ⁺⁶
	I	1.1 x 10 ⁺³	2.2 x 10 ⁺⁷	3.7 x 10 ⁺¹		7.4 x 10 ⁺⁵
	Te‑129 S	1.8 x 10 ⁺⁵	7.4 x 10 ⁺⁸	7.4 x 10 ⁺³		3 x 10 ⁺⁷
	I	1.5 x 10 ⁺⁵	7.4 x 10 ⁺⁸	3.7 x 10 ⁺³		3 x 10 ⁺⁷
	Te‑131m S	1.5 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		2.2 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	2.2 x 10 ⁺²		1.5 x 10 ⁺⁶
	Te‑132 S	7.4 x 10 ⁺³	3.3 x 10 ⁺⁷	2.6 x 10 ⁺²		1.1 x 10 ⁺⁶
	I	3.7 x 10 ⁺³	2.2 x 10 ⁺⁷	1.5 x 10 ⁺²		7.4 x 10 ⁺⁵
Terbium (65)	Tb‑160 S	3.7 x 10 ⁺³	3.7 x 10 ⁺⁷	1.1 x 10 ⁺²		1.5 x 10 ⁺⁶
	I	1.1 x 10 ⁺³	3.7 x 10 ⁺⁷	3.7 x 10 ⁺¹		1.5 x 10 ⁺⁶
Thallium (81)	Tl‑200 S	1.1 x 10 ⁺⁵	3.7 x 10 ⁺⁸	3.3 x 10 ⁺³		1.5 x 10 ⁺⁷
	I	3.7 x 10 ⁺⁴	2.6 x 10 ⁺⁸	1.5 x 10 ⁺³		7.4 x 10 ⁺⁶
	Tl‑201 S	7.4 x 10 ⁺⁴	3.3 x 10 ⁺⁸	2.6 x 10 ⁺³		1.1 x 10 ⁺⁷
	I	3.3 x 10 ⁺⁴	1.8 x 10 ⁺⁸	1.1 x 10 ⁺³		7.4 x 10 ⁺⁶
	Tl‑202 S	3 x 10 ⁺⁴	1.5 x 10 ⁺⁸	1.1 x 10 ⁺³		3.7 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	7.4 x 10 ⁺⁷	3 x 10 ⁺²		2.6 x 10 ⁺⁶
	Tl‑204 S	2.2 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
	I	1.1 x 10 ⁺³	7.4 x 10 ⁺⁷	3.3 x 10 ⁺¹		2.2 x 10 ⁺⁶
Thorium (90)	Th‑227 S	1.1 x 10 ⁺¹	1.8 x 10 ⁺⁷	3.7 x 10 ^‑1		7.4 x 10 ⁺⁵
	I	7.4 x 10 ^‑0	1.8 x 10 ⁺⁷	2.2 x 10 ^‑1		7.4 x 10 ⁺⁵
	Th‑228 S	3.3 x 10 ^‑1	7.4 x 10 ⁺⁶	1.1 x 10 ^‑2		2.6 x 10 ⁺⁵
	I	2.2 x 10 ^‑1	1.5 x 10 ⁺⁷	7.4 x 10 ^‑3		3.7 x 10 ⁺⁵
	Th‑230 S	7.4 x 10 ^‑2	1.8 x 10 ⁺⁶	3 x 10 ^‑3		7.4 x 10 ⁺⁴
	I	3.7 x 10 ^‑1	3.3 x 10 ⁺⁷	1.1 x 10 ^‑2		1.1 x 10 ⁺⁶
	Th‑231 S	3.7 x 10 ⁺⁴	2.6 x 10 ⁺⁸	1.8 x 10 ⁺³		7.4 x 10 ⁺⁶
	I	3.7 x 10 ⁺⁴	2.6 x 10 ⁺⁸	1.5 x 10 ⁺³		7.4 x 10 ⁺⁶
	Th‑232 S	1.1 x 10 ^‑0	1.8 x 10 ⁺⁶	3.7 x 10 ^‑2		7.4 x 10 ⁺⁴
	I	1.1 x 10 ^‑0	3.7 x 10 ⁺⁷	3.7 x 10 ^‑2		1.5 x 10 ⁺⁶
	Th S	2.2 x 10 ^‑0	2.2 x 10 ⁺⁶	7.4 x 10 ^‑2		7.4 x 10 ⁺⁴
	natural I	2.2 x 10 ^‑0	2.2 x 10 ⁺⁷	7.4 x 10 ^‑2		7.4 x 10 ⁺⁵
	Th‑234 S	2.2 x 10 ⁺³	1.8 x 10 ⁺⁷	7.4 x 10 ⁺¹		7.4 x 10 ⁺⁵
	I	1.1 x 10 ⁺³	1.8 x 10 ⁺⁷	3.7 x 10 ⁺¹		7.4 x 10 ⁺⁵
Thulium (69)	Tm‑170 S	1.5 x 10 ⁺³	3.7 x 10 ⁺⁷	3.7 x 10 ⁺¹		1.8 x 10 ⁺⁶
	I	1.1 x 10 ⁺³	3.7 x 10 ⁺⁷	3.7 x 10 ⁺¹		1.8 x 10 ⁺⁶
	Tm‑171 S	3.7 x 10 ⁺³	3.7 x 10 ⁺⁸	1.5 x 10 ⁺²		1.8 x 10 ⁺⁷
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁸	3 x 10 ⁺²		1.8 x 10 ⁺⁷
Tin (50)	Sn‑113 S	1.5 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		3.3 x 10 ⁺⁶
	I	1.8 x 10 ⁺³	7.4 x 10 ⁺⁷	7.4 x 10 ⁺¹		3 x 10 ⁺⁶
	Sn‑125 S	3.7 x 10 ⁺³	1.8 x 10 ⁺⁷	1.5 x 10 ⁺²		7.4 x 10 ⁺⁵
	I	3 x 10 ⁺³	1.8 x 10 ⁺⁷	1.1 x 10 ⁺²		7.4 x 10 ⁺⁵
Tungsten (74)	W‑181 S	7.4 x 10 ⁺⁴	3.7 x 10 ⁺⁸	3 x 10 ⁺³		1.5 x 10 ⁺⁷
	I	3.7 x 10 ⁺³	3.7 x 10 ⁺⁸	1.5 x 10 ⁺²		1.1 x 10 ⁺⁷
	W‑185 S	3 x 10 ⁺⁴	1.5 x 10 ⁺⁸	1.1 x 10 ⁺³		3.7 x 10 ⁺⁶
	I	3.7 x 10 ⁺³	1.1 x 10 ⁺⁸	1.5 x 10 ⁺²		3.7 x 10 ⁺⁶
	W‑187 S	1.5 x 10 ⁺⁴	7.4 x 10 ⁺⁷	7.4 x 10 ⁺²		2.6 x 10 ⁺⁶
	I	1.1 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		2.2 x 10 ⁺⁶
Uranium (92)	U‑230 S	1.1 x 10 ⁺¹	3.7 x 10 ⁺⁶	3.7 x 10 ^‑1		1.8 x 10 ⁺⁵
	I	3.7 x 10 ^‑0	3.7 x 10 ⁺⁶	1.5 x 10 ^‑1		1.8 x 10 ⁺⁵
	U‑232 S	3.7 x 10 ^‑0	3 x 10 ⁺⁷	1.1 x 10 ^‑1		1.1 x 10 ⁺⁶
	I	1.1 x 10 ^‑0	3 x 10 ⁺⁷	3.3 x 10 ^‑2		1.1 x 10 ⁺⁶
	U‑233 S	1.8 x 10 ⁺¹	3.3 x 10 ⁺⁷	7.4 x 10 ^‑1		1.1 x 10 ⁺⁶
	I	3.7 x 10 ^‑0	3.3 x 10 ⁺⁷	1.5 x 10 ^‑1		1.1 x 10 ⁺⁶
	U‑234 S ⁴	2.2 x 10 ⁺¹	3.3 x 10 ⁺⁷	7.4 x 10 ^‑1		1.1 x 10 ⁺⁶
	I	3.7 x 10 ^‑0	3.3 x 10 ⁺⁷	1.5 x 10 ^‑1		1.1 x 10 ⁺⁶
	U‑235 S ⁴	1.8 x 10 ⁺¹	3 x 10 ⁺⁷	7.4 x 10 ^‑1		1.1 x 10 ⁺⁶
	I	3.7 x 10 ^‑0	3 x 10 ⁺⁷	1.5 x 10 ^‑1		1.1 x 10 ⁺⁶
	U‑236 S	2.2 x 10 ⁺¹	3.7 x 10 ⁺⁷	7.4 x 10 ^‑1		1.1 x 10 ⁺⁶
	I	3.7 x 10 ^‑0	3.7 x 10 ⁺⁷	1.5 x 10 ^‑1		1.1 x 10 ⁺⁶
	U‑238 S ⁴	2.6 x 10 ^‑0	3.7 x 10 ⁺⁷	1.1 x 10 ^‑1		1.5 x 10 ⁺⁶
	I	3.7 x 10 ^‑0	3.7 x 10 ⁺⁷	1.8 x 10 ^‑1		1.5 x 10 ⁺⁶
	U‑240 S	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	3 x 10 ⁺²		1.1 x 10 ⁺⁶
	I	7.4 x 10 ⁺³	3.7 x 10 ⁺⁷	2.2 x 10 ⁺²		1.1 x 10 ⁺⁶
	U‑ S	3.7 x 10 ^‑0	3.7 x 10 ⁺⁷	1.8 x 10 ^‑1		1.1 x 10 ⁺⁶
	natural I	3.7 x 10 ^‑0	3.7 x 10 ⁺⁷	1.8 x 10 ^‑1		1.1 x 10 ⁺⁶
Vanadium (23)	V‑48 S	7.4 x 10 ⁺³	3.3 x 10 ⁺⁷	2.2 x 10 ⁺²		1.1 x 10 ⁺⁶
	I	2.2 x 10 ⁺³	3 x 10 ⁺⁷	7.4 x 10 ⁺¹		1.1 x 10 ⁺⁶
Xenon (54)	Xe‑131m Sub	7.4 x 10 ⁺⁵	—	1.5 x 10 ⁺⁴		—
	Xe‑133m Sub	3.7 x 10 ⁺⁵	—	1.1 x 10 ⁺⁴		—
	Xe‑133 Sub	3.7 x 10 ⁺⁵	—	1.1 x 10 ⁺⁴		—
	Xe‑135 Sub	1.5 x 10 ⁺⁵	—	3.7 x 10 ⁺³		—
Ytterbium (70)	Yb‑175 S	2.6 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ^+2.		3.7 x 10 ⁺⁶
	I	2.2 x 10 ⁺⁴	1.1 x 10 ⁺⁸	7.4 x 10 ⁺²		3.7 x 10 ⁺⁶
Yttrium (39)	Y‑90 S	3.7 x 10 ⁺³	2.2 x 10 ⁺⁷	1.5 x 10 ⁺²		7.4 x 10 ⁺⁵
	I	3.7 x 10 ⁺³	2.2 x 10 ⁺⁷	1.1 x 10 ⁺²		7.4 x 10 ⁺⁵
	Y‑91m S	7.4 x 10 ⁺⁵	3.7 x 10 ⁺⁹	3 x 10 ⁺⁴		1.1 x 10 ⁺⁸
	I	7.4 x 10 ⁺⁵	3.7 x 10 ⁺⁹	2.2 x 10 ⁺⁴		1.1 x 10 ⁺⁸
	Y‑91 S	1.5 x 10 ⁺³	3 x 10 ⁺⁷	3.7 x 10 ⁺¹		1.1 x 10 ⁺⁶
	I	1.1 x 10 ⁺³	3 x 10 ⁺⁷	3.7 x 10 ⁺¹		1.1 x 10 ⁺⁶
	Y‑92 S	1.5 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		2.2 x 10 ⁺⁶
	I	1.1 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		2.2 x 10 ⁺⁶
	Y‑93 S	7.4 x 10 ⁺³	3 x 10 ⁺⁷	2.2 x 10 ⁺²		1.1 x 10 ⁺⁶
	I	3.7 x 10 ⁺³	3 x 10 ⁺⁷	1.8 x 10 ⁺²		1.1 x 10 ⁺⁶
Zinc (30)	Zn‑65 S	3.7 x 10 ⁺³	1.1 x 10 ⁺⁸	1.5 x 10 ⁺²		3.7 x 10 ⁺⁶
	I	2.2 x 10 ⁺³	1.8 x 10 ⁺⁸	7.4 x 10 ⁺¹		7.4 x 10 ⁺⁶
	Zn‑69m S	1.5 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		2.6 x 10 ⁺⁶
	I	1.1 x 10 ⁺⁴	7.4 x 10 ⁺⁷	3.7 x 10 ⁺²		2.2 x 10 ⁺⁶
	Zn‑69 S	2.6 x 10 ⁺⁵	1.8 x 10 ⁺⁹	7.4 x 10 ⁺³		7.4 x 10 ⁺⁷
	I	3.3 x 10 ⁺⁵	1.8 x 10 ⁺⁹	1.1 x 10 ⁺⁴		7.4 x 10 ⁺⁷
Zirconium (40)	Zr‑93 S	3.7 x 10 ⁺³	7.4 x 10 ⁺⁸	1.5 x 10 ⁺²		3 x 10 ⁺⁷
	I	1.1 x 10 ⁺⁴	7.4 x 10 ⁺⁸	3.7 x 10 ⁺²		3 x 10 ⁺⁷
	Zr‑95 S	3.7 x 10 ⁺³	7.4 x 10 ⁺⁷	1.5 x 10 ⁺²		2.6 x 10 ⁺⁶
	I	1.1 x 10 ⁺³	7.4 x 10 ⁺⁷	3.7 x 10 ⁺¹		2.6 x 10 ⁺⁶
	Zr‑97 S	3.7 x 10 ⁺³	1.8 x 10 ⁺⁷	1.5 x 10 ⁺²		7.4 x 10 ⁺⁵
	I	3.3 x 10 ⁺³	1.8 x 10 ⁺⁷	1.1 x 10 ⁺²		7.4 x 10 ⁺⁵
Any single radionuclide not listed above with decay mode other than alpha emission or spontaneous fission and with radio‑active half life less than 2 hours.	Sub ²	3.7 x 10 ⁺⁴	—	1.1 x 10 ⁺³		—
Any single radionuclide not listed above with decay mode other than alpha emission or spontaneous fission and with radio‑active half life greater than 2 hours.		1.1 x 10 ⁺²	3.3 x 10 ⁺⁶	3.7 x 10 ^‑0		1.1 x 10 ⁺⁵
Any single radionuclide not listed above, which decays by alpha emission or spontaneous fission.		2.2 x 10 ^‑2	1.5 x 10 ^‑4	7.4 x 10 ^‑4		1.1 x 10 ⁺³

¹ Soluble (S); Insoluble (I).

² “Sub” means that values given are for submersion in a semi‑spherical infinite cloud of airborne material.

³ These radon concentrations are appropriate for protection from radon‑222 combined with its short‑lived daughters. Alternatively, the value in Table 1 may be replaced by one‑third ( ¹/ ₃) “working level”. (A “working level” is defined as any combination of short‑lived radon‑222 daughters, polonium‑218, lead‑214, bismuth‑214, and polonium‑214, in one litre of air, without regard to the degree of equilibrium, that will result in the ultimate emission of 1.3 x 10 ⁵ MeV of alpha particle energy.) The Table II value may be replaced by one‑thirtieth ( ¹/ ₃₀) of a “working level”. The limit on radon‑222 concentrations in restricted areas may be based on an annual average.

⁴ For soluble mixtures of U‑238 and U‑235 in air chemical toxicity may be the limiting factor. If the per cent by weight (enrichment) of U‑235 is less than 5, the concentration value for a 40 hour work week, Table I, is 0.2 milligrams uranium per cubic metre of air average. For any enrichment the product of the average concentration and time of exposure during a 40‑hour work week shall not exceed 8 x SA becquerels‑hour/metre ³, where SA is the specific activity of the uranium inhaled. The concentration value for Table II is 0.007 milligrams uranium per cubic metre of air. The specific activity for natural uranium is 2.5 x 10 ⁴becquerels per gram uranium. The specific activity for other mixtures of U‑238, U‑235 and 234, if not known, shall be:

SA = 1.33 x 10 4 becquerels/gram U U depleted

SA = (0.4 + 0.38 E + 0.0034 E ²) 10 ^–6E ≥ 0.72

where E is the percentage by weight of U‑235, expressed as per cent.

(See notes at end of this Schedule and Appendix thereto)

Appendix to Schedule VIII

Note: In any case where there is a mixture in air or water of more than one radionuclide, the limiting values for purposes of this Appendix should be determined as follows:

1. If the identity and concentration of each radionuclide in the mixture are known, the limiting values should be derived as follows: Determine, for each radionuclide in the mixture, the ratio between the quantity present in the mixture and the limit otherwise established in this Appendix for the specific radionuclide when not in a mixture. The sum of such ratios for all the radionuclides in the mixture may not exceed “1” (i.e., “unity”).

Example : If radionuclides a, b, and c are present in concentrations C _a, C _b, and C _c, and if the applicable MPC’s are MPC _a, MPC _b, and MPC _c, respectively, then the concentrations shall be limited so that the following relationship exists:

2. If either the identity or the concentration of any radionuclide in the mixture is not known, the limiting values for purposes of this Appendix shall be:

a. For purposes of Table I, Col. 1 ............................. 2.2 x 10 ^‑2

b. For purposes of Table I, Col. 2 ............................. 1.5 x 10 ⁺⁴

c. For purposes of Table II, Col. 1 ........................... 7.4 x 10 ^‑4

d. For purposes of Table II, Col. 2 ........................... 1.1 x 10 ⁺³

3. If any of the conditions specified below are met, the corresponding values specified below may be used in lieu of those specified in paragraph 2 above.

a. If the identity of each radionuclide in the mixture is known, but the concentration of one or more of the radionuclides in the mixture is not known, the concentration limit for the mixture is the limit specified in this Appendix for the radionuclide in the mixture having the lowest concentration limit; or

b. If the identity of each radionuclide in the mixture is not known, but it is known that certain radionuclides specified in this Appendix are not present in the mixture, the concentration limit for the mixture is the lowest concentration limit specified in this Appendix for any radionuclide which is not known to be absent from the mixture; or

	Table I				Table II
*c. Radionuclide*	Column 1 *Air*		Column 2 *Water*		Column 1 *Air*	Column 2 *Water*
			*(becquerels per cubic metre)*
If it is known that Sr‑90, I‑125, I‑126, I‑129, I‑131, (I‑133, Table II only), Pb‑210, Po‑210, At‑211, Ra‑228, Th‑230, Pa‑231, Th‑232, Th‑nat, Cm‑248, Cf‑254, and Fm‑256 are not present ...................................................	—	3.3 x 10 ⁺⁶		` —			1.1 x 10 ⁺⁵
If it is known that Sr‑90, I‑125, I‑126, I‑129, (I‑131, I‑133, Table II only), Pb‑210, Po‑210, Ra‑223, Ra‑226, Ra‑228, Pa‑231, Th‑nat, Cm‑248, Cf‑154, and Fm‑256 are not present ....	—	2.2 x 10 ⁺⁶		—			7.4 x 10 ⁺⁴
If it is known that Sr‑90, I‑129, (I‑125, I‑126, I‑131, Table II only), Pb‑210, Ra‑226, Ra‑228, Cm‑248, and Cf‑254 are not present........................................	—	7.4 x 10 ⁺⁵		—			2.2 x 10 ⁺⁴
If it is known that (I‑129, Table II only), Ra‑226, and Ra‑228 are not present...................................................	—	1.1 x 10 ⁺⁵		—			3.7 x 10 ⁺³
If it is known that alpha‑emitters and Sr‑90, I‑129, Pb‑210, Ac‑227, Ra‑228, Pa‑230, Pu‑241, and Bk‑249 are not present...................................................	1.1 x 10 ⁺²	—		3.7 x 10 ^‑0			—
If it is known that alpha‑emitters and Pb‑210, Ac‑227, Ra‑228, and Pu‑241 are not present........................................	1.1 x 10 ⁺¹	—		3.7 x 10 ^‑1			—
If it is known that alpha‑emitters and Ac‑227 are not present...........................	1.1 x 10 ^‑1	—		3.7 x 10 ^‑2			—
If it is known that Ac‑227, Th‑230, Pa‑231, Pu‑238, Pu‑239, Pu‑240, Pu‑242, Pu‑244, Cm‑248, Cf‑249 and Cf‑251 are not present...........................	1.1 x 10 ^‑1	—		3.7 x 10 ^‑3			—

4. If a mixture of radionuclides consists of uranium and its daughters in ore dust prior to chemical separation of the uranium from the ore, the values specified below may be used for uranium and its daughters through radium‑226, instead of those from paragraph 1, 2 or 3 above.

a. For purposes of Table I, Column 1, 3.7 becquerels per cubic metre gross alpha activity; or 1.8 becquerels per cubic metre natural uranium; or 75 micrograms per cubic metre of air natural uranium.

b. For purposes of Table II, Column 1, 0.11 becquerels per cubic metre gross alpha activity; 7.4 x 10 ^‑2becquerels per cubic metre natural uranium; or 3 micrograms per cubic metre of air natural uranium.

5. For purposes of this note, a radionuclide may be considered as not present in a mixture if (a) the ratio of the concentration of that radionuclide in the mixture C _ato the concentration limit for that radionuclide specified in Table II of this Appendix (MPC _a) does not exceed ¹/ ₁₀, (i.e., C _a/MPC _a ≤ ¹/ ₁₀and (b) the sum of such ratios for all radionuclides considered as not present in the mixture does not exceed ¼, (i.e., C _a/MPC _a+ C _b/MPC _b+ ...... ≤ ¼).

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RADIATION SAFETY (GENERAL) REGULATIONS 1983 - SCHEDULE 8