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

Figure 1

Comparison of the specific activity of ²³⁸U, ²³²Th, and ⁴⁰K obtained in this study with values obtained in other parts of Kenya and the world. The specific activity of ⁴⁰K has been scaled down by a factor of 10 for clear display of ²³⁸U and ²³²Th levels [5,10–15].