Environmental sensitivity

Temperate environment

C. Turcanu, G. Olyslaegers

cturcanu@sckcen.be

Belgian Nuclear Research Centre SCK•CEN

Institute Environment, Health and Safety

EMRAS II TM, WG8

Vienna, Jan. 24-28, 2011 Copyright © 2011

SCK•CEN

Outline

Scope

Temperate environment, 3 types of soil

Calculations

JRODOS

Considers foliar uptake, translocation, root uptake,

resuspension

1000 Bq/m2

– Spring (May 1st)

SCK•CEN Biosphere model (model runs by Geert

Olyslaegers)

Only suitable for up to 3 months after the deposition

time

Considers also leaching

RODOS results (1)

RODOS results (2)

RODOS results (3)

RODOS results (4)

RODOS results (5)

RODOS results (6)

RODOS results (7)

RODOS results (8)

RODOS results (9)

With wet deposition (1mm/h rain)

With wet deposition (1mm/h rain)

With wet deposition (1mm/h rain)

RODOS results 1st year

I-131

Winter

wheat

Leafy

vegs Milk

adult Dose [microSv] Sandy 4.69E-04 2.79E+01 1.09E+01

Child 1y 1.05E-03 1.41E+02 2.17E+02

Clay 4.77E-04 2.84E+01 1.11E+01

1.07E-03 1.43E+02 2.21E+02

RODOS results 2nd year

I-131

Winter

wheat

Leafy

vegs Milk

adult Dose [microSv] Sandy 3.88E-14 0.00E+00 1.33E-13

Child 1y 1.06E-14 0.00E+00 3.25E-13

Clay 3.95E-14 0.00E+00 1.36E-13

1.08E-14 0.00E+00 3.31E-13

Sr-90

Winter

wheat

Leafy

vegs Milk

adult Dose [microSv] Sandy 1.32E+00 6.81E+01 3.07E+01

Child 1y 9.40E-01 1.10E+02 1.95E+02

Clay 1.32E+00 6.80E+01 3.07E+01

9.39E-01 1.09E+02 1.95E+02

RODOS results 1nd year

Sr-90

Winter

wheat

Leafy

vegs Milk

adult Dose [microSv] Sandy 1.88E+00 2.28E+00 7.22E+00

Child 1y 5.14E-01 1.41E+00 1.76E+01

Clay 1.88E+00 2.28E+00 7.21E+00

5.13E-01 1.41E+00 1.76E+01

RODOS results 2nd year

Cs-137

Winter

wheat

Leafy

vegs Milk

adult Dose [microSv] Sandy 4.64E+00 3.07E+01 2.58E+01

Child 1y 1.17E+00 1.75E+01 5.80E+01

Clay 4.62E+00 3.06E+01 2.57E+01

1.17E+00 1.74E+01 5.78E+01

RODOS results 1st year

Cs-137

Winter

wheat

Leafy

vegs Milk

adult Dose [microSv] Sandy 2.36E+00 5.72E-02 4.08E+00

Child 1y 6.44E-01 3.53E-02 9.94E+00

Clay 2.35E+00 5.69E-02 4.07E+00

6.41E-01 3.51E-02 9.90E+00

RODOS results 2nd year

SCK•CEN model Dose ratio for Cs-137 and Sr-90

0

0.0002

0.0004

0.0006

0.0008

1 815

22

29

36

43

50

57

64

71

78

85

92

99

Sand/Clay – 1, Cs-137

0

0.005

0.01

0.015

0.02

0.025

0.03

0.035

1 9

17

25

33

41

49

57

65

73

81

89

97

Sand/Clay-1, Sr-90

Days after deposition

Days after deposition

SCK•CEN model Dose ratio for I-131

0

0.00002

0.00004

0.00006

0.00008

0.0001

0.00012

0.00014

0.000161 7

13

19

25

31

37

43

49

55

61

67

73

79

85

91

97

Sand/Clay - 1 I-131

Sand/Loam - 1 I-131

Days after deposition