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Michigan Administrative Code (Last Updated: November 16, 2016) |
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Department LR. Licensing and Regulatory Affairs |
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MIOSHA |
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Chapter Ionizing Radiation Rules Part 1 to Part 15 |
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Part 5. STANDARDS FOR PROTECTION AGAINST RADIATION |
Section 325.5262. Appendix A2. Concentrations in air and water above natural background. Elements C.
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Rule 262. (See notes in rule 270.)
Element
TABLE I
TABLE II
Radionuclide*
Column 1
Column 2
Column 1
Column 2
(atomic number)
Air
Water
Air
Water
(µCi/ml)
(µCi/ml)
(µCi/ml)
(µCi/ml)
Cadmium (48)
Cd-109
S I
5 x 10-8
7 x 10-8
5 x 10-3
5 x 10-3
2 x 10-9
3 x 10-9
2 x 10-4
2 x 10-4
Cd-115m Cd-115
S I S I
4 x 10-8
4 x 10-8
2 x 10-7
2 x 10-7
7 x 10-4
7 x 10-4
1 x 10-3
1 x 10-3
1 x 10-9
1 x 10-9
8 x 10-9
6 x 109
3 x 10-5
3 x 10-5
3 x 105
4 x 10-5
Calcium (20)
Ca-45
S
3 x 10-8
3 x 10-4
1 x 10-9
9 x 10-6
I
1 x 10-7
5 x 10-3
4 x 10-9
2 x 10-4
Ca-47
S
2 x 10-7
1 x 10-3
6 x 10-9
5 x 10-5
I
2 x 10-7
1 x 10-3
6 x 10-9
3 x 10-5
Californium (98)
Cf-249 Cf-250
S I S I
2 x 10-12
1 x 10-10
5 x 10-12
1 x 10-10
1 x 10-4
7 x 10-4
4 x 10-4
7 x 10-4
5 x 10-14
3 x 10-12
2 x 10-13
3 x 10-12
4 x 10-6
2 x 10-5
1 x 10-5
3 x 10-5
Cf-251 Cf-252 Cf-253 Cf-254
S I S I S I S I
2 x 10-12
1 x 10-10
6 x 10-12
3 x 10-11
8 x 10-10
8 x 10-10
5 x 10-12
5 x 10-12
1 x 10-4
8 x 10-4
2 x 10-4
2 x 10-4
4 x 10-3
4 x 10-3
4 x 10-6
4 x 10-6
6 x 10-14
3 x 10-12
2 x 10-13
1 x 10-12
3 x 10-11
3 x 10-11
2 x 10-13
2 x 10-13
4 x 10-6
3 x 10-5
7 x 10-6
7 x 10-6
1 x 10-4
1 x 10-4
1 x 10-7
1 x 10-7
Carbon (6)
C-14
S
4 x 10-6
2 x 10-2
1 x 10-7
8 x 10-4
(CO2)
Sub**
5 x 10-5
----------
1 x 10-6
----------
Cerium (58)
Ce-141 Ce-143 Ce-144
S I S I S I
4 x 10-7
2 x 10-7
3 x 10-7
2 x 10-7
1 x 10-8
6 x 10-9
3 x 10-3
3 x 10-3
1 x 10-3
1 x 10-3
3 x 10-4
3 x 10-4
2 x 10-8
5 x 10-9
9 x 10-9
7 x 10-9
3 x 10-10
2 x 10-10
9 x 10-5
9 x 10-5
4 x 10-5
4 x 10-5
1 x 10-5
1 x 10-5
Cesium (55)
Cs-131 Cs-134m Cs-134 Cs-135 Cs-136 Cs-137
S I S I S I S I S I S I
1 x 10-5
3 x 10-6
4 x 10-5
6 x 10-6
4 x 10-8
1 x 10-8
5 x 10-7
9 x 10-8
4 x 10-7
2 x 10-7
6 x 10-8
1 x 10-8
7 x 10-2
3 x 10-2
2 x 10-1
3 x 10-2
3 x 10-4
1 x 10-3
3 x 10-3
7 x 10-3
2 x 10-3
2 x 10-3
4 x 10-4
1 x 10-3
4 x 10-7
1 x 10-7
1 x 10-6
2 x 10-7
1 x 10-9
4 x 10-10
2 x 10-8
3 x 10-9
1 x 10-8
6 x 10-9
2 x 10-9
5 x 10-10
2 x 10-3
9 x 10-4
6 x 10-3
1 x 10-3
9 x 10-6
4 x 10-5
1 x 10-4
2 x 10-4
9 x 10-5
6 x 10-5
2 x 10-5
4 x 10-5
Chlorine (17)
Cl-36 Cl-38
S I S I
4 x 10-7
2 x 10-8
3 x 10-6
2 x 10-6
2 x 10-3
2 x 10-3
1 x 10-2
1 x 10-2
1 x 10-8
8 x 10-10
9 x 10-8
7 x 10-8
8 x 10-5
6 x 10-5
4 x 10-4
4 x 10-4
Chromium (24)
Cr-51
S
1 x 10-5
5 x 10-2
4 x 10-7
2 x 10-3
Cobalt (27)
Co-57
I
S
2 x 10-6
3 x 10-6
5 x 10-2
2 x 10-2
8 x 10-8
1 x 10-7
2 x 10-3
5 x 10-4
Co-58m Co-58 Co-60
I S I S I S I
2 x 10-7
2 x 10-5
9 x 10-6
8 x 10-7
5 x 10-8
3 x 10-7
9 x 10-9
1 x 10-2
8 x 10-2
6 x 10-2
4 x 10-3
3 x 10-3
1 x 10-3
1 x 10-3
6 x 10-9
6 x 10-7
3 x 10-7
3 x 10-8
2 x 10-9
1 x 10-8
3 x 10-10
4 x 10-4
3 x 10-3
2 x 10-3
1 x 10-4
9 x 10-5
5 x 10-5
3 x 10-5
Copper (29)
Cu-64
S I
2 x 10-6
1 x 10-6
1 x 10-2
6 x 10-3
7 x 10-8
4 x 10-8
3 x 10-4
2 x 10-4
Curium (96)
Cm-242 Cm-243 Cm-244 Cm-245
S I S I S I S I
1 x 10-10
2 x 10-10
6 x 10-12
1 x 10-10
9 x 10-12
1 x 10-10
5 x 10-12
1 x 10-10
7 x 10-4
7 x 10-4
1 x 10-4
7 x 10-4
2 x 10-4
8 x 10-4
1 x 10-4
8 x 10-4
4 x 10-12
6 x 10-12
2 x 10-13
3 x 10-12
3 x 10-13
3 x 10-12
2 x 10-13
4 x 10-12
2 x 10-5
2 x 10-5
5 x 10-6
2 x 10-5
7 x 10-6
3 x 10-5
4 x 10-6
3 x 10-5
Cm-246 Cm-247
S I S I
5 x 10-12
1 x 10-10
5 x 10-12
1 x 10-10
1 x 10-4
8 x 10-4
1 x 10-4
6 x 10-4
2 x 10-13
4 x 10-12
2 x 10-13
4 x 10-12
4 x 10-6
3 x 10-5
4 x 10-6
2 x 10-5
Cm-248 Cm-249
S I S I
6 x 10-13
1 x 10-11
1 x 10-5
1 x 10-5
1 x 10-5
4 x 10-5
6 x 10-2
6 x 10-2
2 x 10-14
4 x 10-13
4 x 10-7
4 x 10-7
4 x 10-7
1 x 10-6
2 x 10-3
2 x 10-3
History: 1954 ACS 85, Eff. Dec. 3, 1975.