Mich. Admin. Code R. 325.5261

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

Section R. 325.5261 - Appendix A1. Concentrations in air and water above natural background. Elements A and B

Rule 261.

(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)
Actinium (89)	Ac-227	S	2 x 10-12	6 x 10-5	8 x 10-14	2 x 10-6
		I	3 x 10-11	9 x 10-3	9 x 10-13	3 x 10-4
	Ac-228	S	8 x 10-8	3 x 10-3	3 x 10-9	9 x 10-5
		I	2 x 10-8	3 x 10-3	6 x 10-10	9 x 10-5
Americium (95)	Am-241	S	6 x 10-12	1 x 10-4	2 x 10-13	4 x 10-6
		I	1 x 10-10	8 x 10-4	4 x 10-12	3 x 10-5
	Am-242m	S	6 x 10-12	1 x 10-4	2 x 10-13	4 x 10-6
		I	3 x 10-10	3 x 10-3	9 x 10-12	9 x 10-5
	Am-242	S	4 x 10-8	4 x 10-3	1 x 10-9	1 x 10-4
		I	5 x 10-8	4 x 10-3	2 x 10-9	1 x 10-4
	Am-243	S	6 x 10-12	1 x 10-4	2 x 10-13	4 x 10-6
		I	1 x 10-10	8 x 10-4	4 x 10-12	3 x 10-5
	Am-244	S	4 x 10-6	1 x 10-1	1 x 10-7	5 x 10-3
		I	2 x 10-5	1 x 10-1	8 x 10-7	5 x 10-3
Antimony (51)	Sb-122	S	2 x 10-7	8 x 10-4	6 x 10-9	3 x 10-5
		I	1 x 10-7	8 x 10-4	5 x 10-9	3 x 10-5
	Sb-124	S	2 x 10-7	7 x 10-4	5 x 10-9	2 x 10-5
		I	2 x 10-8	7 x 10-4	7 x 10-10	2 x 10-5
	Sb-125	S	5 x 10-7	3 x 10-3	2 x 10-8	1 x 10-4
		I	3 x 10-8	3 x 10-3	9 x 10-10	1 x 10-4
Argon (18)	A-37	Sub**	6 x 10-3	-----------	1 x 10-4	-----------
	A-41	Sub	2 x 10-6	-----------	4 x 10-8	-----------
Arsenic (33)	As-73	S	2 x 10-6	1 x 10-2	7 x 10-8	5 x 10-4
		I	4 x 10-7	1 x 10-2	1 x 10-8	5 x 10-4
	As-74	S	3 x 10-7	2 x 10-3	1 x 10-8	5 x 10-5
		I	1 x 10-7	2 x 10-3	4 x 10-9	5 x 10-5
	As-76	S	1 x 10-7	6 x 10-4	4 x 10-9	2 x 10-5
		I	1 x 10-7	6 x 10-4	3 x 10-9	2 x 10-5
	As-77	S	5 x 10-7	2 x 10-3	2 x 10-8	8 x 10-5
		I	4 x 10-7	2 x 10-3	1 x 10-8	8 x 10-5
Astatine (85)	At-211	S	7 x 10-9	5 x 10-5	2 x 10-10	2 x 10-6
		I	3 x 10-8	2 x 10-3	1 x 10-9	7 x 10-5
Barium (56)	Ba-131	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
	Ba-140	S	1 x 10-7	8 x 10-4	4 x 10-9	3 x 10-5
		I	4 x 10-8	7 x 10-4	1 x 10-9	2 x 10-5
Berkelium (97)	Bk-249	S	9 x 10-10	2 x 10-2	3 x 10-11	6 x 10-4
		I	1 x 10-7	2 x 10-2	4 x 10-9	6 x 10-4
	Bk-250	S	1 x 10-7	6 x 10-3	5 x 10-9	2 x 10-4
		I	1 x 10-6	6 x 10-3	4 x 10-8	2 x 10-4
Beryllium (4)	Be-7	S	6 x 10-6	5 x 10-2	2 x 10-7	2 x 10-3
		I	1 x 10-6	5 x 10-2	4 x 10-8	2 x 10-3
Bismuth (83)	Bi-206	S	2 x 10-7	1 x 10-3	6 x 10-9	4 x 10-5
		I	1 x 10-7	1 x 10-3	5 x 10-9	4 x 10-5
	Bi-207	S	2 x 10-7	2 x 10-3	6 x 10-9	6 x 10-5
		I	1 x 10-8	2 x 10-3	5 x 10-10	6 x 10-5
	Bi-210	S	6 x 10-9	1 x 10-3	2 x 10-10	4 x 10-5
		I	6 x 10-9	1 x 10-3	2 x 10-10	4 x 10-5
	Bi-212	S	1 x 10-7	1 x 10-2	3 x 10-9	4 x 10-4
		I	2 x 10-7	1 x 10-2	7 x 10-9	4 x 10-4
Bromine (35)	Br-82	S	1 x 10-6	8 x 10-3	4 x 10-8	3 x 10-4
		I	2 x 10-7	1 x 10-3	6 x 10-9	4 x 10-5

Mich. Admin. Code R. 325.5261

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