Page 671 - Radiation Safety

Radioactivity levels of NORM & TENORM in Malaysia

NORM/TENORM Ra-226 (Bq/g) Ra-228 (Bq/g)

MAL normal soils
(Peninsular) 0.04 – 0.10 (max 0.24) 0.07 – 0.13 (max 0.28) 0.03 –

(Sabah & Sarawak) 0.03 0.04

Amang (tin tailing) 0.7 – 1.3 0.6 – 1.6

Mine sands 0.04 – 0.11 0.02 – 0.05

Petroleum Sludge &
0.01 – 430 0.01 – 450
Scales

Monazite 8 – 22 64 – 180

Zircon 13 2.2

Xenotime 71 14

Ilmenite 0.7 0.5