Figure A7. 
Results for Th-232 with 2 sigma uncertainties 
(upper) and the arithmetic mean with variations of 
the result within 2 sigma uncertainties (lower). 
33 
Bc l ,k a Bq/kg 
Th-232 
Th-232 mean value 65.9 Bq/kg 
Results with 2 sigma uncertainties 
Long-lived radionuclides in the seabed of the Baltic Sea