58 
Figure 1: 
Cs-137 results with 2 sigma 
uncertainties in sea sediment 
intercomparison 
1400 
Cs-137 
arithmetic mean 
95% confidence intervals 
STUK/FI RISO/DK CLOR/PO LVEA/LV ERPC/ES 
laboratory 
DHIG/GE 
SSI/SW 
BFFG/GE 
Figure 2: 
239 24op u results with 2 sigma 
uncertainties in sea sediment 
intercomparison 
Pu-239,240 
STUK/FI RISO/DK CLOR/PO DHIG/GE 
SSI/SW BFFG/GE 
laboratory