<abstract xmlns="http://www.w3.org/1999/xhtml"> A closed near-surface radioactive waste repository is the source of various radionuclides causing the human exposure. Recent investigations confirm an effectiveness of the engineering barriers installed in 2006 to prevent the penetration of radionuclides to the environment. The tritium activity concentration in groundwater decreased from tens of kBq/l to below hundreds of Bq/l. The monitoring and groundwater level data suggest the leaching of tritium from previously contaminated layers of unsaturated zone by rising groundwater while 210Pb may disperse as a decay product of 226Ra daughters.</abstract>

A closed near-surface radioactive waste repository is the source of various radionuclides causing the human exposure. Recent investigations confirm an effectiveness of the engineering barriers installed in 2006 to prevent the penetration of radionuclides to the environment. The tritium activity concentration in groundwater decreased from tens of kBq/l to below hundreds of Bq/l. The monitoring and groundwater level data suggest the leaching of tritium from previously contaminated layers of unsaturated zone by rising groundwater while 210Pb may disperse as a decay product of 226Ra daughters.

On release of radionuclides from a near-surface radioactive waste repository to the environment

Center for Physical Sciences and Technology (CPST), Ionizing Radiation Metrology Laboratory, 231 Savanorių Ave., LT-02300 Vilnius, Lithuania, Tel.: +370 52 644 855, Fax: +370 52 602 317,

Center for Physical Sciences and Technology (CPST), Ionizing Radiation Metrology Laboratory, 231 Savanorių Ave., LT-02300 Vilnius, Lithuania, Tel.: +370 52 644 855, Fax: +370 52 602 317

Nukleonika

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

A closed near-surface radioactive waste repository is the source of various radionuclides causing the human exposure. Recent investigations confirm an...

On release of radionuclides from a near-surface radioactive waste repository to the environment

Pubblicato online: 25 set 2015

Pagine: 551 - 555

Ricevuto: 29 set 2014

Accettato: 20 mag 2015

DOI: https://doi.org/10.1515/nuka-2015-0091

Parole chiave
near-surface repository · radionuclides · groundwater · radionuclide release · forest environment

© by Arūnas Gudelis

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

On release of radionuclides from a near-surface radioactive waste repository to the environment

Pubblicato online: 25 set 2015

Pagine: 551 - 555

Ricevuto: 29 set 2014

Accettato: 20 mag 2015

DOI: https://doi.org/10.1515/nuka-2015-0091

Parole chiavenear-surface repository · radionuclides · groundwater · radionuclide release · forest environment

© by Arūnas Gudelis

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parole chiave
near-surface repository · radionuclides · groundwater · radionuclide release · forest environment