Intercomparison of Rn-222 determination from groundwater.
An intercomparison exercise on Rn-222 determination in groundwater was organized between eight Nordic laboratories. The individual laboratory results were in most cases within 20% of the median value and within reported uncertainties. Considering the particular difficulties in preparing, transporting and analyzing Rn-222, being a gaseous radionuclide, the results indicate a high analytical capability among the Nordic laboratories. In order to maintain a high analytical quality, similar intercomparisons will also be needed in the future.
Vesterbacka
P
P
Radiation and Nuclear Safety Authority (STUK), Laippatie 4, 00880 Helsinki, Finland. pia.vesterbacka@stuk.fi
Pettersson
H
H
Hanste
U-M
UM
Jakobson
E
E
Kolstad
T
T
Roos
P
P
Ostergren
I
I
D004784:Environmental Monitoring; D004957:Estonia; D005387:Finland; D019015:Geologic Sediments / Q000032:analysis; D011786:Quality Control; D011834:Radiation Monitoring / Q000379:methods*; D011886:Radon / Q000032:analysis*; D015203:Reproducibility of Results; D012537:Scandinavian and Nordic Countries; D012990:Soil Pollutants, Radioactive / Q000032:analysis; D014875:Water Pollutants, Radioactive / Q000032:analysis*
D012990:Soil Pollutants, Radioactive; D014875:Water Pollutants, Radioactive; D011886:Radon