Assessment of Levels of Natural Radioactivity in Sand Samples Collected from Ekalakala in Machakos County, Kenya

Table 5

Correlation matrix table for the specific activities of ²³⁸U, ²³²Th, and ⁴⁰K.

	^238U	^232Th	^40K
^238U	1
^232Th	0.8133	1
^40K	0.5302	0.5760	1