Table 1 Comparison of modelled peak concentrations to measurements in each region.

From: Predictability of the dispersion of Fukushima-derived radionuclides and their homogenization in the atmosphere

Region

Number of measurement sites (131I/137Cs)

Aerosol131I

Aerosol137Cs

Measured mean concentration (mBq m−3)

RMSE(mBq m−3)

CV

Measured mean concentration (mBq m−3)

RMSE (mBq m−3)

CV

Arctic

8/8

9.4

4.9

0.5

1.7

1.8

1.1

North America

23/22

5.8

6.9

1.2

0.77

1.9

2.5

Europe

95/64

2.0

2.2

1.1

0.26

0.31

1.2

Asia

37/37

2.1

2.6

1.3

0.33

0.62

1.9

Central Pacific

7/7

11.2

11.4

1.0

1.5

1.6

1.1

Western Pacific

8/8

0.38

0.29

0.76

0.30

0.32

1.1

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