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

Figure 6

Regression plots showing the correlation between (a) ²³⁸U and ²³²Th, (b) ²³²Th and ⁴⁰K, and (c) ²³⁸U versus ⁴⁰K in sand samples analysed.

(a)

(b)

(c)