Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2012, Vol. 23 ›› Issue (1): 19-28 doi: 10.13538/j.1001-8042/nst.23.19-28

• LOW ENERGY ACCELERATOR AND RADIATION APPLICATIONS • Previous Articles     Next Articles

Determination of 210Pb and 212Pb in water and their radiological impact to the public via drinking water

JIA Guogang* TORRI Giancarlo   

  1. National Institute of Environmental Protection and Research, 00144 Roma, Italy
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JIA Guogang, TORRI Giancarlo. Determination of 210Pb and 212Pb in water and their radiological impact to the public via drinking water.Nuclear Science and Techniques, 2012, 23(1): 19-28     doi: 10.13538/j.1001-8042/nst.23.19-28

Abstract:

A sensitive and accurate method for determining ultra low-level 210Pb and 212Pb in water samples through double measurements was developed.Pb was pre-concentrated as hydroxides,separated from alkaline earth elements as PbS precipitate,purified by an anion exchange resin chromatography column,precipitated as PbSO4 for source preparation and counted by a low background β-counter.The procedure was checked with IAEA reference materials,and the results agreed well with the recommended values.Theminimum detectable activity was 0.062 mBq·L-1 for 210Pb and 0.053 mBq·L-1 for 212Pb with a 48 L water sample.Seventeen drinking water samples were analyzed,with a Pb recovery of 88.8?5.5%,and the typical activity concentrations were 0.191?15.1 mBq·L-1 for 210Pb and of 1.12?5.77 mBq·L-1 for 212Pb.The estimated committed effective doses to adult members of the public in Italy due to intake of 210Pb and 212Pb in drinking water were 0.096?7.59 μSv·a-1 and 0.005?0.025 μSv·a-1,respectively.

Key words: 210Pb, 212Pb, Dose evaluation, Drinking water