Mich. Admin. Code R. 325.5265

Current through Vol. 24-23, January 1, 2025

Section R. 325.5265 - Appendix A5. Concentrations in air and water above natural background. Elements M to O

Rule 265.

(See notes in Rule 270.)

			TABLE I		TABLE II
Element (atomic number)	Radionuclide*		Column 1 Air (µCi/ml)	Column 2 Water (µCi/ml)	Column 1 Air (µCi/ml)	Column 2 Water (µCi/ml)
Manganese (25)	Mn-52	S	2 x 10-7	1 x 10-3	7 x 10-9	3 x 10-5
		I	1 x 10-7	9 x 10-4	5 x 10-9	3 x 10-5
	Mn-54	S	4 x 10-7	4 x 10-3	1 x 10-8	1 x 10-4
		I	4 x 10-8	3 x 10-3	1 x 10-9	1 x 10-4
	Mn-56	S	8 x 10-7	4 x 10-3	3 x 10-8	1 x 10-4
		I	5 x 10-7	3 x 10-3	2 x 10-8	1 x 10-4
Mercury (80)	Hg-197m	S	7 x 10-7	6 x 10-3	3 x 10-8	2 x 10-4
		I	8 x 10-7	5 x 10-3	3 x 10-8	2 x 10-4
	Hg-197	S	1 x 10-6	9 x 10-3	4 x 10-8	3 x 10-4
		I	3 x 10-6	1 x 10-2	9 x 10-8	5 x 10-4
	Hg-203	S	7 x 10-8	5 x 10-4	2 x 10-9	2 x 10-5
		I	1 x 10-7	3 x 10-3	4 x 10-9	1 x 10-4
Molybdenum (42)	Mo-99	S	7 x 10-7	5 x 10-3	3 x 10-8	2 x 10-4
		I	2 x 10-7	1 x 10-3	7 x 10-9	4 x 10-5
Neodymium (60)	Nd-144	S	8 x 10-11	2 x 10-3	3 x 10-12	7 x 10-5
		I	3 x 10-10	2 x 10-3	1 x 10-11	8 x 10-5
	Nd-147	S	4 x 10-7	2 x 10-3	1 x 10-8	6 x 10-5
		I	2 x 10-7	2 x 10-3	8 x 10-9	6 x 10-5
	Nd-149	S	2 x 10-6	8 x 10-3	6 x 10-8	3 x 10-4
		I	1 x 10-6	8 x 10-3	5 x 10-8	3 x 10-4
Neptunium (93)	Np-237	S	4 x 10-12	9 x 10-5	1 x 10-13	3 x 10-6
		I	1 x 10-10	9 x 10-4	4 x 10-12	3 x 10-5
	Np-239	S	8 x 10-7	4 x 10-3	3 x 10-8	1 x 10-4
		I	7 x 10-7	4 x 10-3	2 x 10-8	1 x 10-4
Nickel (28)	Ni-59	S	5 x 10-7	6 x 10-3	2 x 10-8	2 x 10-4
		I	8 x 10-7	6 x 10-2	3 x 10-8	2 x 10-3
	Ni-63	S	6 x 10-8	8 x 10-4	2 x 10-9	3 x 10-5
		I	3 x 10-7	2 x 10-2	1 x 10-8	7 x 10-4
	Ni-65	S	9 x 10-7	4 x 10-3	3 x 10-8	1 x 10-4
		I	5 x 10-7	3 x 10-3	2 x 10-8	1 x 10-4
Niobium (41)	Nb-93m	S	1 x 10-7	1 x 10-2	4 x 10-9	4 x 10-4
		I	2 x 10-7	1 x 10-2	5 x 10-9	4 x 10-4
	Nb-95	S	5 x 10-7	3 x 10-3	2 x 10-8	1 x 10-4
		I	1 x 10-7	3 x 10-3	3 x 10-9	1 x 10-4
	Nb-97	S	6 x 10-6	3 x 10-2	2 x 10-7	9 x 10-4
		I	5 x 10-6	3 x 10-2	2 x 10-7	9 x 10-4
Osmium (76)	Os-185	S	5 x 10-7	2 x 10-3	2 x 10-8	7 x 10-5
		I	5 x 10-8	2 x 10-3	2 x 10-9	7 x 10-5
	Os-191m	S	2 x 10-5	7 x 10-2	6 x 10-7	3 x 10-3
		I	9 x 10-6	7 x 10-2	3 x 10-7	2 x 10-3
	Os-191	S	1 x 10-6	5 x 10-3	4 x 10-8	2 x 10-4
		I	4 x 10-7	5 x 10-3	1 x 10-8	2 x 10-4
	Os-193	S	4 x 10-7	2 x 10-3	1 x 10-8	6 x 10-5
		I	3 x 10-7	2 x 10-3	9 x 10-9	5 x 10-5

Mich. Admin. Code R. 325.5265

1979 AC; 2016 MR 10, Eff. 5/25/2016