Sediment

mud

Radioactivity

Removal (%)

Soil

Radioactivity

Removal (%)

A

Before

14.35 μSv/h

A

Before

10.56 μSv/h

After

2.60 μSv/h

81.9

After

3.52 μSv/h

66.6

B

Before

12.07 μSv/h

B

Before

199,248 Bq/kg

After

2.95 μSv/h

75.9

After

72,225 Bq/kg

64.0

C

Before

15.20 μSv/h

C

Before

87,181 Bq/kg

After

4.60 μSv/h

73.2

After

35,340 Bq/kg

69.5

D

Before

36,490 Bq/kg

After

9,855 Bq/kg

73.3