Table 5.

Pearson’s correlation matrix for variables

Parameters	226Ra	232Th	40K	Iγ	Raeq	D	AED	Hex	Hin	Iα
226Ra	1
232Th	0.813	1
40K	0.467	0.689	1
Iγ	0.838	0.946	0.792	1
Raeq	0.852	0.952	0.776	0.998	1
D	0.844	0.944	0.788	1.00	0.999	1
AED	0.844	0.944	0.788	1.00	0.999	1.00	1
Hex	0.852	0.952	0.776	0.999	1.00	0.999	0.999	1
Hin	0.899	0.942	0.733	0.984	0.991	0.988	0.988	0.990	1
Iα	0.999	0.774	0.484	0.787	0.812	0.799	0.799	0.809	0.881	1