Thorium Measurement

Case (mBq/l)

upper limit (mBq/l)

By day (mBq/24h)

Case/limit ratio

Natural Th (mBq/l)

238Th

314.8

13.8

645.3

22.8

0

203Th

13.4

2.8

28.1

4.8

0

232Th

127

8.3

261

15.3

0.3
Table 1: Thorium dosing in urine sample.