Assessment of radioactivity and radiological risk indices in the sediments of the Tam Giang-Cau Hai, Thi Nai, and Nai lagoons in the Center of Vietnam-Reference-Cited by-同舟云学术

Assessment of radioactivity and radiological risk indices in the sediments of the Tam Giang-Cau Hai, Thi Nai, and Nai lagoons in the Center of Vietnam

Published:2024-04-25 Issue:9 Volume:112 Page:679-689
ISSN:0033-8230
Container-title:Radiochimica Acta
language:en
Short-container-title:

Author:

Nhon Dang Hoai¹²^ORCID,Van Quan Nguyen¹²,Hai Phan Son³,Van Vuong Bui¹,Anh Nguyen Ngoc¹,Ve Nguyen Dac¹,Chien Hoang Thi¹

Affiliation:

1. Vietnam Academy of Science and Technology (VAST) , 61797 Institute of Marine Environment and Resources , Hai Phong City , Vietnam

2. Vietnam Academy of Science and Technology (VAST) , 61797 Graduate University of Science and Technology , Ha Noi City , Vietnam

3. Dalat Nuclear Research Institute, Vietnam Atomic Energy Institute (VINATOM) , Lam Dong Province , Vietnam

Abstract

Abstract Using gamma and alpha spectrometers, the radioactive isotopes 226Ra, 210Pb, 232Th, and 40K were determined in three sediment cores from the Tam Giang-Cau Hai (TG), Thi Nai (TN), and Nai (DN) lagoons, and radiation risk indices were computed. The radioactivity concentrations of 210Pb, 40K, 232Th, and 226Ra were 55.46 Bq/kg, 675.78 Bq/kg, 67.22 Bq/kg, and 34.15 Bq/kg, respectively. The Raeq, ADR, AEDE, Iγr, AUI, Hex, and AGDE indices were 182.31 Bq/kg, 84.46 nGy/h, 0.10 mSV/y, 1.35, 1, 18, 0.49, and 598.71 µSV/y, respectively; the values of 40K, 232Th, AEDE, ADR, Iγr, and AGDE were greater than the global average and UNSCEAR values. The radioactivity and radiation risk indices decreased in the order DN > TN > TG.

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/ract-2024-0271/pdf

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