Wisconsin Administrative Code › Department of Health Services › DHS 110-199 - Health › Chapter DHS 157 - Radiation Protection › Appendix A

Current through June 24, 2024
Exempt
								Concentrations
Element (atomic number)
Radionuclide
Column I Gas concentration microcuries/ml
								1/
Column II Liquid and solid concentration
								microcuries/ml 2/
Antimony (51)
Sb-122
3X10-4
Sb-124
2X10-4
Sb-125
1X10-3
Argon (18)
Ar-37
1X10-3
Ar-41
4X10-7
Arsenic (33)
As-73
5X10-3
As-74
5X10-4
As-76
2X10-4
As-77
8X10-4
Barium (56)
Ba-131
2X10-3
Ba-140
3X10-4
Beryllium (4)
Be-7
2X10-2
Bismuth (83)
Bi-206
4X10-4
Bromine (35)
Br-82
4X10-7
3X10-3
Cadmium (48)
Cd-109
2X10-3
Cd-115m
3X10-4
Cd-115
3X10-4
Calcium (20)
Ca-45
9X10-5
Ca-47
5X10-4
Carbon (6)
C-14
1X10-6
8X10-3
Cerium (58)
Ce-141
9X10-4
Ce-143
4X10-4
Ce-144
1X10-4
Cesium (55)
Cs-131
2X10-2
Cs-134m
6X10-2
Cs-134
9X10-5
Chlorine (17)
Cl-38
9X10-7
4X10-3
Chromium (24)
Cr-51
2X10-2
Cobalt (27)
Co-57
5X10-3
Co-58
1X10-3
Co-60
5X10-4
Copper (29)
Cu-64
3X10-3
Dysprosium (66)
Dy-165
4X10-3
Dy-166
4X10-4
Erbium (68)
Er-169
9X10-4
Er-171
1X10-3
Europium (63)
Eu-152(9.2 h)
6X10-4
Eu-155
2X10-3
Fluorine (9)
F-18
2X10-6
8X10-3
Gadolinium (64)
Gd-153
2X10-3
Gd-159
8X10-4
Gallium (31)
Ga-72
4X10-4
Germanium (32)
Ge-71
2X10-2
Gold (79)
Au-196
2X10-3
Au-198
5X10-4
Au-199
2X10-3
Hafnium (72)
Hf-181
7X10-4
Hydrogen (1)
H-3
5X10-6
3X10-2
Indium (49)
In-113m
1X10-2
In-114m
2X10-4
Iodine (53)
I-126
3X10-9
2X10-5
I-131
3X10-9
2X10-5
I-132
8X10-8
6X10-4
I-133
1X10-8
7X10-5
I-134
2X10-7
1X10-3
Iridium (77)
Ir-190
2X10-3
Ir-192
4X10-4
Ir-194
3X10-4
Iron (26)
Fe-55
8X10-3
Fe-59
6X10-4
Krypton (36)
Kr-85m
1X10-6
Kr-85
3X10-6
Lanthanum (57)
La-140
2X10-4
Lead (82)
Pb-203
4X10-3
Lutetium (71)
Lu-177
1X10-3
Manganese (25)
Mn-52
3X10-4
Mn-54
1X10-3
Mn-56
1X10-3
Mercury (80)
Hg-197m
2X10-3
Hg-197
3X10-3
Hg-203
2X10-4
Molybdenum (42)
Mo-99
2X10-3
Neodymium (60)
Nd-147
6X10-4
Nd-149
3X10-3
Nickel (28)
Ni-65
1X10-3
Niobium (Columbium) (41)
Nb-95
1X10-3
Nb-97
9X10-3
Osmium (76)
Os-185
7X10-4
Os-191m
3X10-2
Os-191
2X10-3
Os-193
6X10-4
Palladium (46)
Pd-103
3X10-3
Pd-109
9X10-4
Phosphorus (15)
P-32
2X10-4
Platinum (78)
Pt-191
1X10-3
Pt-193m
1X10-2
Pt-197m
1X10-2
Pt-197
1X10-3
Potassium (19)
K-42
3X10-3
Praseodymium (59)
Pr-142
3X10-4
Pr-143
5X10-4
Promethium (61)
Pm-147
2X10-3
Pm-149
4X10-4
Rhenium (75)
Re-183
6X10-3
Re-186
9X10-4
Rhodium (45)
Rh-103m
1X10-1
Rh-105
1X10-3
Rubidium (37)
Rb-86
7X10-4
Ruthenium (44)
Ru-97
4X10-4
Ru-103
8X10-4
Ru-105
1X10-3
Ru-106
1X10-4
Samarium (62)
Sm-153
8X10-4
Scandium (21)
Sc-46
4X10-4
Sc-47
9X10-4
Sc-48
3X10-4
Selenium (34)
Se-75
3X10-3
Silicon (14)
Si-31
9X10-3
Silver (47)
Ag-105
1X10-3
Ag-110m
3X10-4
Ag-111
4X10-4
Sodium (11)
Na-24
2X10-3
Strontium (38)
Sr-85
1X10-4
Sr-89
1X10-4
Sr-91
7X10-4
Sr-92
7X10-4
Sulfur (16)
S-35
9X10-8
6X10-4
Tantalum (73)
Ta-182
4X10-4
Technetium (43)
Tc-96m
1X10-1
Tc-96
1X10-3
Tellurium (52)
Te-125m
2X10-3
Te-127m
6X10-4
Te-127
3X10-3
Te-129m
3X10-4
Te-131m
6X10-4
Te-132
3X10-4
Terbium (65)
Tb-160
4X10-4
Thallium (81)
Tl-200
4X10-3
Tl-201
3X10-3
Tl-202
1X10-3
Tl-204
1X10-3
Thulium (69)
Tm-170
5X10-4
Tm-171
5X10-3
Tin (50)
Sn-113
9X10-4
Sn-125
2X10-4
Tungsten (Wolfram) (74)
W-181
4X10-3
W-187
7X10-4
Vanadium (23)
V-48
3X10-4
Xenon (54)
Xe-131m
4X10-6
Xe-133
3X10-6
Xe-135
1X10-6
Ytterbium (70)
Yb-175
1X10-3
Yttrium (39)
Y-90
2X10-4
Y-91m
3X10-2
Y-91
3X10-4
Y-92
6X10-4
Y-93
3X10-4
Zinc (30)
Zn-65
1X10-3
Zn-69m
7X10-4
Zn-69
2X10-2
Zirconium (40)
Zr-95
6X10-4
Zr-97
2X10-4
Beta- and gamma-emitting
radioactive material not listed
above with half-life
of less than 3 years.
1X10-10
1X10-6
1/ Values are given in Column I only for those materials
				  normally used as gases.
2/ microcuries /g for solids
Note 1:
Many radionuclides transform into other
				  radionuclides. In expressing the concentrations in Appendix A, the activity
				  stated is that of the parent radionuclide and takes into account the
				  radioactive decay products.
Note 2:
For purposes of s. DHS 157.09 (2) where
				  there is involved a combination of radionuclides, the limit for the combination
				  should be derived as follows: Determine for each radionuclide in the product
				  the ratio between the radioactivity concentration present in the product and
				  the exempt radioactivity concentration established in Appendix A for the
				  specific radionuclide when not in combination. The sum of such ratios may not
				  exceed "1".
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Note 3:
To convert microcuries-/ml to SI units
				  of megabecquerels per liter multiply the above values by 37.
Example: Zirconium (40) Zr-97 (2x10-4 microcuries/ml
				  multiplied by 37 is equivalent to 74 x 10"4 MBq/l). 2/ microcuries/g for
				  solids.