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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 325.5267. Appendix A7. Concentrations in air and water above natural background. Elements R and S.
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Rule 267. (See notes in rule 270.)
TABLE I
TABLE II
Element
Radionuclide*
Column 1
Column 2
Column 1
Column 2
(atomic number)
Air
Water
Air
Water
(µCi/ml)
(µCi/ml)
(µCi/ml)
(µCi/ml)
Radium (88)
Ra-223 Ra-224 Ra-226 Ra-228
S I S I S I S I
2 x 10-9
2 x 10-10
5 x 10-9
7 x 10-10
3 x 10-11
5 x 10-11
7 x 10-11
4 x 10-11
2 x 10-5
1 x 10-4
7 x 10-5
2 x 10-4
4 x 10-7
9 x 10-4
8 x 10-7
7 x 10-4
6 x 10-11
8 x 10-12
2 x 10-10
2 x 10-11
3 x 10-12
2 x 10-12
2 x 10-12
1 x 10-12
7 x 10-7
4 x 10-6
2 x 10-6
5 x 10-6
3 x 10-8
3 x 10-5
3 x 10-8
3 x 10-5
Radon (86)
Rn-220
S
3 x 10-7
----------
1 x 10-8
----------
Rn-222***
I S
---------- 1 x 10-6
----------
----------
---------- 3 x 10-9
----------
----------
Rhenium (75)
Re-183 Re-186 Re-187 Re-188
S I S I S I S I
3 x 10-6
2 x 10-7
6 x 10-7
2 x 10-7
9 x 10-6
5 x 10-7
4 x 10-7
2 x 10-7
2 x 10-2
8 x 10-3
3 x 10-3
1 x 10-3
7 x 10-2
4 x 10-2
2 x 10-3
9 x 10-4
9 x 10-8
5 x 10-9
2 x 10-8
8 x 10-9
3 x 10-7
2 x 10-8
1 x 10-8
6 x 10-9
6 x 10-4
3 x 10-4
9 x 10-5
5 x 10-5
3 x 10-3
2 x 10-3
6 x 10-5
3 x 10-5
Rhodium (45)
Rh-103m
Rh-105
S I S
8 x 10-5
6 x 10-5
8 x 10-7
4 x 10-1
3 x 10-1
4 x 10-3
3 x 10-6
2 x 10-6
3 x 10-8
1 x 10-2
1 x 10-2
1 x 10-4
Rubidium (37)
Rb-86 Rb-87
S I S I
3 x 10-7
7 x 10-8
5 x 10-7
7 x 10-8
2 x 10-3
7 x 10-4
3 x 10-3
5 x 10-3
1 x 10-8
2 x 10-9
2 x 10-8
2 x 10-9
7 x 10-5
2 x 10-5
1 x 10-4
2 x 10-4
Ruthenium (44)
Ru-97 Ru-103 Ru-105 Ru-106
S I S I S I S I
2 x 10-6
2 x 10-6
5 x 10-7
8 x 10-8
7 x 10-7
5 x 10-7
8 x 10-8
6 x 10-9
1 x 10-2
1 x 10-2
2 x 10-3
2 x 10-3
3 x 10-3
3 x 10-3
4 x 10-4
3 x 10-4
8 x 10-8
6 x 10-8
2 x 10-8
3 x 10-9
2 x 10-8
2 x 10-8
3 x 10-9
2 x 10-10
4 x 10-4
3 x 10-4
8 x 10-5
8 x 10-5
1 x 10-4
1 x 10-4
1 x 10-5
1 x 10-5
Samarium (62)
Sm-147 Sm-151 Sm-153
S I S I S I
7 x 10-11
3 x 10-10
6 x 10-8
1 x 10-7
5 x 10-7
4 x 10-7
2 x 10-3
2 x 10-3
1 x 10-2
1 x 10-2
2 x 10-3
2 x 10-3
2 x 10-12
9 x 10-12
2 x 10-9
5 x 10-9
2 x 10-8
1 x 10-8
6 x 10-5
7 x 10-5
4 x 10-4
4 x 10-4
8 x 10-5
8 x 10-5
Scandium (21)
Sc-46 Sc-47 Sc-48
S I S I S I
2 x 10-7
2 x 10-8
6 x 10-7
5 x 10-7
2 x 10-7
1 x 10-7
1 x 10-3
1 x 10-3
3 x 10-3
3 x 10-3
8 x 10-4
8 x 10-4
8 x 10-9
8 x 10-10
2 x 10-8
2 x 10-8
6 x 10-9
5 x 10-9
4 x 10-5
4 x 10-5
9 x 10-5
9 x 10-5
3 x 10-5
3 x 10-5
Selenium (34)
Se-75
S I
1 x 10-6
1 x 10-7
9 x 10-3
8 x 10-3
4 x 10-8
4 x 10-9
3 x 10-4
3 x 10-4
Silicon (14)
Si-31
S I
6 x 10-6
1 x 10-6
3 x 10-2
6 x 10-3
2 x 10-7
3 x 10-8
9 x 10-4
2 x 10-4
Silver (47)
Ag-105 Ag-110m Ag-111
S I S I S I
6 x 10-7
8 x 10-8
2 x 10-7
1 x 10-8
3 x 10-7
2 x 10-7
3 x 10-3
3 x 10-3
9 x 10-4
9 x 10-4
1 x 10-3
1 x 10-3
2 x 10-8
3 x 10-9
7 x 10-9
3 x 10-10
1 x 10-8
8 x 10-9
1 x 10-4
1 x 10-4
3 x 10-5
3 x 10-5
4 x 10-5
4 x 10-5
Sodium (11)
Na-22 Na-24
S I S I
2 x 10-7
9 x 10-9
1 x 10-6
1 x 10-7
1 x 10-3
9 x 10-4
6 x 10-3
8 x 10-4
6 x 10-9
3 x 10-10
4 x 10-8
5 x 10-9
4 x 10-5
3 x 10-5
2 x 10-4
3 x 10-5
Strontium (38)
Sr-85m
S
4 x 10-5
2 x 10-1
1 x 10-6
7 x 10-3
Sr-85 Sr-89 Sr-90 Sr-91 Sr-92
S I S I S I S I S I
2 x 10-7
1 x 10-7
3 x 10-8
4 x 10-8
1 x 10-9
5 x 10-9
4 x 10-7
3 x 10-7
4 x 10-7
3 x 10-7
3 x 10-3
5 x 10-3
3 x 10-4
8 x 10-4
1 x 10-5
1 x 10-3
2 x 10-3
1 x 10-3
2 x 10-3
2 x 10-3
8 x 10-9
4 x 10-9
3 x 10-10
1 x 10-9
3 x 10-11
2 x 10-10
2 x 10-8
9 x 10-9
2 x 10-8
1 x 10-8
1 x 10-4
2 x 10-4
3 x 10-6
3 x 10-5
3 x 10-7
4 x 10-5
7 x 10-5
5 x 10-5
7 x 10-5
6 x 10-5
Sulfur (16)
S-35
S I
3 x 10-7
3 x 10-7
2 x 10-3
8 x 10-3
9 x 10-9
9 x 10-9
6 x 10-5
3 x 10-4
History: 1954 ACS 85, Eff. Dec. 3, 1975.